(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.AFRAME = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
var utils = require('../lib/utils');

module.exports = utils.wrapAEventElement('a-click', 'click');

},{"../lib/utils":13}],2:[function(require,module,exports){
/* global HTMLElement */

var aframeCore = require('aframe-core');
var utils = require('../lib/utils');

var registerElement = aframeCore.registerElement.registerElement;
var stateEls = {};
var listeners = {};
var targetData = {};

var attributeBlacklist = {
  // TODO: Consider ignoring unique attributes too
  // (e.g., `class`, `id`, `name`, etc.).
  target: true
};

// State management

function addState (el, state) {
  el.addState(state);
  recordState(el, state);
}

function recordState (el, state) {
  if (state in stateEls) {
    stateEls[state].push(el);
  } else {
    stateEls[state] = [el];
  }
}

function unrecordState (el, state) {
  if (!(state in stateEls)) { return; }
  var elIdx = stateEls[state].indexOf(el);
  if (elIdx === -1) { return; }
  stateEls[state].splice(elIdx, 1);
}

function removeState (el, state) {
  el.removeState(state);
  unrecordState(el, state);
}

function hasState (el, state) {
  if (!(state in stateEls)) { return false; }
  var elIdx = stateEls[state].indexOf(el);
  return elIdx !== -1;
}

// Unique event listeners

function recordListener (el, type) {
  if (type in listeners) {
    listeners[type].push(el);
  } else {
    listeners[type] = [el];
  }
}

function hasListener (el, type) {
  if (!(type in listeners)) { return false; }
  var elIdx = listeners[type].indexOf(el);
  return elIdx !== -1;
}

function addDelegatedListener (el, type, listener, useCapture) {
  if (hasListener(el, type)) { return; }  // Add the event listener only once.
  recordListener(el, type);
  el.addEventListener(type, listener, useCapture);
}

// Target data

function recordTargetData (type, sourceEl, targetSel, attributes) {
  var key = type;
  var obj = {sourceEl: sourceEl, targetSel: targetSel, attributes: attributes};
  if (key in targetData) {
    targetData[key].push(obj);
  } else {
    targetData[key] = [obj];
  }
}

function getTargetData (type) {
  var key = type;
  return targetData[key];
}

function targetListener (e) {
  // Not to be confused with the `target` we are modifying below.
  var eventFiredOnEl = getRealNode(e.target);
  var eventType = e.type;

  var allTargetData = getTargetData(eventType, eventFiredOnEl);
  if (!allTargetData) { return; }

  allTargetData.forEach(updateTargetEl);

  function updateTargetEl (targetData) {
    var sourceEl = targetData.sourceEl;
    if (sourceEl !== eventFiredOnEl) { return; }

    var targetAttributes = targetData.attributes;
    // TODO: Support updating multiple elements later by using `$$` and iterating.
    var targetSel = targetData.targetSel;
    var targetEl = typeof targetSel === 'string' ? utils.$(targetSel) : targetSel;

    if (!targetEl) { return; }

    updateAttrs(targetEl, targetAttributes);
  }
}

function updateAttrs (targetEl, targetAttributes) {
  utils.$$(targetAttributes).forEach(function (attr) {
    if (attr.name in attributeBlacklist) { return; }

    if (attr.name === 'state') {
      var states = utils.splitString(attr.value);
      states.forEach(function (state) {
        // Set the state on this element.
        addState(targetEl, state);
        // Remove the state on the other element(s).
        stateEls[state].forEach(function (el) {
          if (el === targetEl) { return; }  // Don't remove my state!
          removeState(el, state);
        });
      });
    } else {
      targetEl.setAttribute(attr.name, attr.value);
    }
  });
}

// Synthesize events for cursor `mouseenter` and `mouseleave`

window.addEventListener('stateadded', function (e) {
  var detail = e.detail;
  var state = detail.state;
  var el = e.target;

  recordState(el, state);

  if (state === 'hovering') {
    el.emit('mouseenter');
  }
  if (state === 'hovered') {
    if (hasState(el, 'selected')) {
      removeState(el, 'hovered');
    }
  }
});

window.addEventListener('stateremoved', function (e) {
  var detail = e.detail;
  var state = detail.state;
  var el = e.target;

  unrecordState(el, state);

  if (state === 'hovering') {
    el.emit('mouseleave');
  }
});

/**
 * Returns the true node (useful for a wrapped object in a template instance).
 */
function getRealNode (el) {
  if (el.tagName.toLowerCase() === 'a-root') {
    return el.parentNode;
  }
  if (!el.previousElementSibling && !el.nextElementSibling && el.closest('a-root')) {
    return el.closest('a-root').parentNode;
  }
  return el;
}

var AEvent = registerElement(
  'a-event',
  {
    prototype: Object.create(
      HTMLElement.prototype,
      {
        attachedCallback: {
          value: function () {
            var self = this;
            var el = self.parentNode;
            if (el.isNode) {
              attach();
            } else {
              el.addEventListener('nodeready', attach);
            }

            function attach () {
              self.isAEvent = true;
              self.type = self.type || self.getAttribute('type');
              self.target = self.target || self.getAttribute('target');
              self.sceneEl = utils.$('a-scene');
              self.attachEventListener();
            }
          },
          writable: window.debug
        },

        detachedCallback: {
          value: function () {
            // TODO: Remove all event listeners.
          },
          writable: window.debug
        },

        attributeChangedCallback: {
          value: function (attr, oldVal, newVal) {
            if (oldVal === newVal) { return; }
            if (attr === 'type') {
              this.type = newVal;
            } else if (attr === 'target') {
              this.target = newVal;
            }
          },
          writable: window.debug
        },

        attachEventListener: {
          value: function () {
            var self = this;
            var sourceEl;
            var targetEl;
            var listener;

            // TODO: Land `on` PR in `aframe-core`: https://github.com/aframevr/aframe-core/pull/330

            this.sceneEl = this.sceneEl || utils.$('a-scene');

            if (self.type === 'load') {
              sourceEl = getRealNode(self.parentNode);
              targetEl = self.target ? utils.$(self.target) : sourceEl;
              listener = function (e) {
                if (e.target !== sourceEl) { return; }
                updateAttrs(targetEl, self.attributes);
              };
              if (sourceEl && sourceEl.hasLoaded) {
                listener(sourceEl);
                return;
              }
              this.sceneEl.addEventListener('load', listener);
              return;
            }

            listener = targetListener;

            // We must delegate events because the target nodes may not exist yet.
            addDelegatedListener(this.sceneEl, self.type, listener);
            sourceEl = getRealNode(self.parentNode);
            targetEl = self.target || sourceEl;
            recordTargetData(self.type, sourceEl, targetEl, self.attributes);
          },
          writable: window.debug
        }
      }
    )
  }
);

module.exports = AEvent;

},{"../lib/utils":13,"aframe-core":69}],3:[function(require,module,exports){
var utils = require('../lib/utils');

/**
 * We `hover` by applying attributes upon `mouseenter` and then
 * rolling back the changes upon `mouseleave` of the element.
 */
module.exports = utils.wrapAEventElement('a-hover', 'mouseenter');

},{"../lib/utils":13}],4:[function(require,module,exports){
var utils = require('../lib/utils');

module.exports = utils.wrapAEventElement('a-load', 'load');

},{"../lib/utils":13}],5:[function(require,module,exports){
var utils = require('../lib/utils');

module.exports = utils.wrapAEventElement('a-mousedown', 'mousedown');

},{"../lib/utils":13}],6:[function(require,module,exports){
var utils = require('../lib/utils');

module.exports = utils.wrapAEventElement('a-mouseenter', 'mouseenter');

},{"../lib/utils":13}],7:[function(require,module,exports){
var utils = require('../lib/utils');

module.exports = utils.wrapAEventElement('a-mouseleave', 'mouseleave');

},{"../lib/utils":13}],8:[function(require,module,exports){
var utils = require('../lib/utils');

module.exports = utils.wrapAEventElement('a-mouseup', 'mouseup');

},{"../lib/utils":13}],9:[function(require,module,exports){
module.exports = {
  'a-click': require('./a-click'),
  'a-event': require('./a-event'),
  'a-hover': require('./a-hover'),
  'a-load': require('./a-load'),
  'a-mousedown': require('./a-mousedown'),
  'a-mouseenter': require('./a-mouseenter'),
  'a-mouseleave': require('./a-mouseleave'),
  'a-mouseup': require('./a-mouseup')
};

},{"./a-click":1,"./a-event":2,"./a-hover":3,"./a-load":4,"./a-mousedown":5,"./a-mouseenter":6,"./a-mouseleave":7,"./a-mouseup":8}],10:[function(require,module,exports){
/* global HTMLTemplateElement, HTMLImports, MutationObserver */

window.addEventListener('HTMLImportsLoaded', injectFromPolyfilledImports);

// NOTE: HTML Imports polyfill must come before we include `aframe-core`.
if (!('import' in document.createElement('link'))) {
  require('../lib/vendor/HTMLImports');
}

var aframeCore = require('aframe-core');
var registerTemplate = require('./lib/register-template');
var utils = require('./lib/utils');

var registerElement = aframeCore.registerElement.registerElement;

function injectFromPolyfilledImports () {
  if (!HTMLImports || HTMLImports.useNative) { return; }

  Object.keys(HTMLImports.importer.documents).forEach(function (key) {
    var doc = HTMLImports.importer.documents[key];
    insertTemplateElements(doc);
  });
}

function insertTemplateElements (doc) {
  var sceneEl = utils.$('a-scene');
  var assetsEl = utils.$('a-assets');
  if (!assetsEl) {
    assetsEl = document.createElement('a-assets');
    sceneEl.parentNode.insertBefore(assetsEl, sceneEl);
  }

  utils.$$('a-mixin', doc).forEach(function (mixinEl) {
    var mixinCloneEl = document.importNode(mixinEl, true);
    assetsEl.appendChild(mixinCloneEl);
  });

  utils.$$('template[is="a-template"]', doc).forEach(function (templateEl) {
    var templateCloneEl = document.importNode(templateEl, true);
    document.body.appendChild(templateCloneEl);
  });
}

module.exports = registerElement(
  'a-template',
  {
    extends: 'template',  // This lets us do `<template is="a-template">`.
    prototype: Object.create(
      HTMLTemplateElement.prototype,
      {
        createdCallback: {
          value: function () {
            var self = this;
            self.placeholders = [];
            // For Chrome: https://github.com/aframevr/aframe-core/issues/321
            window.addEventListener('load', function () {
              appendElement();
              function appendElement () {
                var isInDocument = self.ownerDocument === document;
                // TODO: Handle `<a-mixin>` from imported templates for Chrome.
                if (!isInDocument) { document.body.appendChild(self); }
              }
            });
          },
          writable: window.debug
        },

        attachedCallback: {
          value: function () {
            this.load();
            this.inject();
          },
          writable: window.debug
        },

        detachedCallback: {
          value: function () {
            // XXX: Hack for VS to hide templates from source.
            // var self = this;
            // self.removeTemplateListener();
            // self.placeholders.forEach(function (el) {
            //   self.sceneEl.remove(el);
            // });
          },
          writable: window.debug
        },

        load: {
          value: function () {
            // To prevent emitting the loaded event more than once.
            if (this.hasLoaded) { return; }
            utils.fireEvent(this, 'loaded');
            this.hasLoaded = true;
          },
          writable: window.debug
        },

        register: {
          value: function (tagName) {
            if (this.registered) { return; }
            this.registered = true;
            return registerTemplate(tagName);
          },
          writable: window.debug
        },

        removeTemplateListener: {
          value: function () {
            if (!this.mixinObserver) { return; }
            this.mixinObserver.disconnect();
            this.mixinObserver = null;
          },
          writable: window.debug
        },

        attachTemplateListener: {
          value: function (tagName) {
            var self = this;
            if (self.mixinObserver) { self.mixinObserver.disconnect(); }
            self.mixinObserver = new MutationObserver(function (mutations) {
              self.placeholders.forEach(function (el) {
                el.rerender(true);
              });
            });
            self.mixinObserver.observe(self, {
              attributes: true,
              characterData: true,
              childList: true,
              subtree: true
            });
          },
          writable: window.debug
        },

        inject: {
          value: function () {
            var self = this;

            if (self.injected) { return; }
            self.injected = true;

            var tagName = self.getAttribute('element');
            if (!tagName) { return; }

            self.attachTemplateListener(tagName);
            self.register(tagName);
          },
          writable: window.debug
        }
      }
    )
  }
);

},{"../lib/vendor/HTMLImports":29,"./lib/register-template":12,"./lib/utils":13,"aframe-core":69}],11:[function(require,module,exports){
var modules = {
  'a-event': require('./a-event'),
  'a-template': require('./a-template')
};

// This injects the template definitions into the page.
require('./templates/index.html');

module.exports = modules;

},{"./a-event":9,"./a-template":10,"./templates/index.html":27}],12:[function(require,module,exports){
var aframeCore = require('aframe-core');
var utils = require('./utils');

var registerElement = aframeCore.registerElement.registerElement;
var AEntity = aframeCore.AEntity;
var AComponents = aframeCore.AComponents;

var ATTRIBUTE_BLACKLIST = utils.extend({
  id: true,
  name: true,
  class: true,
  target: true
});
var COMPONENT_BLACKLIST = utils.extend({}, AComponents);

registerElement('a-root', {prototype: Object.create(AEntity.prototype)});

module.exports = function (tagName) {
  var tagNameLower = tagName.toLowerCase();

  return registerElement(
    tagNameLower,
    {
      prototype: Object.create(
        AEntity.prototype, {
          attachedCallback: {
            value: function () {
              // We emit an event so `<a-entity>` knows when we've been
              // registered and adds our children as `object3D`s.
              this.emit('loaded');
              this.emit('nodeready');
              this.rerender(false, true);
            }
          },

          attributeChangedCallback: {
            value: function (attr, oldVal, newVal) {
              if (oldVal === newVal) { return; }
              this.rerender();
            },
            writable: window.debug
          },

          attributeBlacklist: {
            value: ATTRIBUTE_BLACKLIST,
            writable: window.debug
          },

          componentBlacklist: {
            value: COMPONENT_BLACKLIST,
            writable: window.debug
          },

          detachedCallback: {
            value: function () {
              if (!this.sceneEl) {
                this.sceneEl = utils.$('a-scene');
              }
              this.sceneEl.remove(this);
            },
            writable: window.debug
          },

          rerender: {
            value: function (force, firstTime) {
              var self = this;
              if (!force && this.lastOuterHTML === this.outerHTML) { return; }
              var template = utils.$('template[is="a-template"][element="' + tagName + '"]');
              if (!template) { return; }

              // Use the defaults defined on the original `<template is="a-template">`.
              var templateAttrs = utils.mergeAttrs(template, this);
              utils.forEach(template.attributes, function (attr) {
                if (attr.name in self.componentBlacklist) {
                  if (firstTime) {
                    utils.warn('Cannot use attribute name "%s" for template ' +
                      'definition of <%s> because it is a core component',
                      attr.name, tagNameLower);
                  }
                  delete templateAttrs[attr.name];
                }
              });
              Object.keys(templateAttrs).filter(function (key) {
                if (key in this.attributeBlacklist) {
                  // Move these unique identifier attributes over
                  // (i.e., `id`, `name`, `class`, `target`).
                  delete templateAttrs[key];
                }
                var value = templateAttrs[key];
                var component = this.components[key];
                if (component && typeof value === 'object') {
                  templateAttrs[key] = component.stringify(value);
                }
              }, this);

              this.root = utils.$$(this.children).filter(function (el) {
                return el.tagName.toLowerCase() === 'a-root';
              })[0];

              if (!this.root) {
                this.root = document.createElement('a-root');
                this.appendChild(this.root);
              }

              var newHTML = utils.format(template.innerHTML, templateAttrs);
              if (newHTML !== this.root.innerHTML) {
                this.root.innerHTML = newHTML;
              }

              this.lastOuterHTML = this.outerHTML;
            },
            writable: window.debug
          }
        }
      )
    });
};

},{"./utils":13,"aframe-core":69}],13:[function(require,module,exports){
var aframeCore = require('aframe-core');
var AEvent = require('../a-event/a-event');

var aframeCoreUtils = aframeCore.utils;
var registerElement = aframeCore.registerElement.registerElement;

/**
 * Wraps `querySelector` à la jQuery's `$`.
 *
 * @param {String|Element} sel CSS selector to match an element.
 * @param {Element=} parent Parent from which to query.
 * @returns {Element} Element matched by selector.
 */
module.exports.$ = function (sel, parent) {
  var el = sel;
  if (sel && typeof sel === 'string') {
    el = (parent || document).querySelector(sel);
  }
  return el;
};

/**
 * Wraps `querySelectorAll` à la jQuery's `$`.
 *
 * @param {String|Element} sel CSS selector to match elements.
 * @param {Element=} parent Parent from which to query.
 * @returns {Array} Array of elements matched by selector.
 */
module.exports.$$ = function (sel, parent) {
  if (Array.isArray(sel)) { return sel; }
  var els = sel;
  if (sel && typeof sel === 'string') {
    els = (parent || document).querySelectorAll(sel);
  }
  return toArray(els);
};

/**
 * Turns an array-like object into an array.
 *
 * @param {String|Element} obj CSS selector to match elements.
 * @param {Array|NamedNodeMap|NodeList|HTMLCollection} arr An array-like object.
 * @returns {Array} Array of elements matched by selector.
 */
var toArray = module.exports.toArray = function (obj) {
  if (Array.isArray(obj)) { return obj; }
  if (typeof obj === 'object' && typeof obj.length === 'number') {
    return Array.prototype.slice.call(obj);
  }
  return [obj];
};

/**
 * Wraps `Array.prototype.forEach`.
 *
 * @param {Object} arr An array-like object.
 * @returns {Array} A real array.
 */
var forEach = module.exports.forEach = function (arr, fn) {
  return Array.prototype.forEach.call(arr, fn);
};

/**
 * Merges attributes à la `Object.assign`.
 *
 * @param {...Object} els
 *   Array-like object (NodeMap, array, etc.) of
 *   parent elements from which to query.
 * @returns {Array} Array of merged attributes.
 */
module.exports.mergeAttrs = function () {
  var mergedAttrs = {};
  forEach(arguments, function (el) {
    forEach(el.attributes, function (attr) {
      // NOTE: We use `getComputedAttribute` instead of `attr.value` so our
      // wrapper for coordinate objects, etc. gets used.
      if (el.getComputedAttribute) {
        mergedAttrs[attr.name] = el.getComputedAttribute(attr.name);
      } else {
        mergedAttrs[attr.name] = el.getAttribute(attr.name);
      }
    });
  });
  return mergedAttrs;
};

/**
 * Does ES6-style (or mustache-style) string formatting.
 *
 * > format('${0}', ['zzz'])
 * "zzz"
 *
 * > format('${0}{1}', 1, 2)
 * "12"
 *
 * > format('${x}', {x: 1})
 * "1"
 *
 * > format('my favourite color is ${color=blue}', {x: 1})
 * "my favourite color is blue"
 *
 * @returns {String} Formatted string with interpolated variables.
 */
module.exports.format = (function () {
  var regexes = [
    /\$?\{\s*([^}= ]+)(\s*=\s*(.+))?\s*\}/g,
    /\$?%7B\s*([^}= ]+)(\s*=\s*(.+))?\s*%7D/g
  ];
  return function (s, args) {
    if (!s) { throw new Error('Format string is empty!'); }
    if (!args) { return; }
    if (!(args instanceof Array || args instanceof Object)) {
      args = Array.prototype.slice.call(arguments, 1);
    }
    Object.keys(args).forEach(function (key) {
      args[String(key).toLowerCase()] = args[key];
    });
    regexes.forEach(function (re) {
      s = s.replace(re, function (_, name, rhs, defaultVal) {
        var val = args[name.toLowerCase()];

        if (typeof val === 'undefined') {
          return (defaultVal || '').trim().replace(/^["']|["']$/g, '');
        }

        return (val || '').trim().replace(/^["']|["']$/g, '');
      });
    });
    return s;
  };
})();

/**
 * Wraps an element as a new one with a different name.
 *
 * @param {String} newTagName - Name of the new custom element.
 * @param {Element} srcElement - Original custom element to wrap.
 * @param {Object=} [data={}] - Data for the new prototype.
 * @returns {Array} Wrapped custom element.
 */
var wrapElement = module.exports.wrapElement = function (newTagName, srcElement, data) {
  data = data || {};
  return registerElement(newTagName, {
    prototype: Object.create(srcElement.prototype, data)
  });
};

/**
 * Wraps `<a-event>` for a particular event `type`.
 *
 * @param {String} newTagName - Name of the new custom element.
 * @param {Element} eventName - Name of event type.
 * @param {Object=} [data={}] - Data for the new prototype.
 * @returns {Array} Wrapped custom element.
 */
module.exports.wrapAEventElement = function (newTagName, eventName, data) {
  data = data || {};
  data.type = {
    value: eventName,
    writable: window.debug
  };
  return wrapElement(newTagName, AEvent, data);
};

// Useful utils from aframe-core.
module.exports.error = aframeCoreUtils.error;
module.exports.extend = aframeCoreUtils.extend;
module.exports.fireEvent = aframeCoreUtils.fireEvent;
module.exports.log = aframeCoreUtils.log;
module.exports.splitString = aframeCoreUtils.splitString;
module.exports.warn = aframeCoreUtils.warn;

},{"../a-event/a-event":2,"aframe-core":69}],14:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-camera\" fov=\"80\" near=\"0.5\" far=\"10000\" look-controls-enabled=\"true\" wasd-controls-enabled=\"true\" cursor-visible=\"true\" cursor-offset=\"1\" cursor-color=\"#FFF\" cursor-maxdistance=\"1000\" cursor-scale=\"1\" cursor-opacity=\"1\">\n  <a-entity camera=\"fov: ${fov}; near: ${near}; far: ${far}\" look-controls=\"enabled: ${look-controls-enabled}\" wasd-controls=\"enabled: ${wasd-controls-enabled}\">\n    <a-entity visible=\"${cursor-visible}\" position=\"0 0 -${cursor-offset}\" geometry=\"primitive: ring; radiusOuter: 0.016; radiusInner: 0.01\" material=\"color: ${cursor-color}; shader: flat; transparent: true; opacity: ${cursor-opacity}\" scale=\"${cursor-scale} ${cursor-scale} ${cursor-scale}\" cursor=\"maxDistance: ${cursor-maxdistance};\">\n    </a-entity>\n  </a-entity>\n</template>");

})
},{}],15:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-cube\" width=\"1.5\" height=\"1.5\" depth=\"1.5\" translate=\"0 0 0\" color=\"gray\" opacity=\"1.0\" shader=\"standard\" transparent=\"true\" metalness=\"0.0\" roughness=\"0.5\" src=\"\">\n  <a-entity geometry=\"primitive: box;\n                      width: ${width};\n                      height: ${height};\n                      depth: ${depth};\n                      translate: ${translate}\" material=\"color: ${color};\n                      opacity: ${opacity};\n                      shader: ${shader};\n                      transparent: ${transparent};\n                      metalness: ${metalness};\n                      roughness: ${roughness};\n                      src: url(${src})\"></a-entity>\n</template>");

})
},{}],16:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-curvedimage\" radius=\"1\" height=\"1\" segments-radius=\"48\" theta-start=\"0\" theta-length=\"360\" opacity=\"1.0\" transparent=\"true\" src=\"\">\n  <a-entity geometry=\"primitive: cylinder;\n                      radius: ${radius};\n                      height: ${height};\n                      segmentsRadius: ${segments-radius};\n                      segmentsHeight: 1;\n                      thetaStart: ${theta-start};\n                      thetaLength: ${theta-length};\n                      openEnded: true\" scale=\"1 1 -1\" material=\"opacity: ${opacity};\n                      shader: flat;\n                      side: double;\n                      transparent: ${transparent};\n                      src: url(${src})\"></a-entity>\n</template>");

})
},{}],17:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-cylinder\" radius=\"0.75\" radius-top=\"0.75\" radius-bottom=\"0.75\" height=\"1.5\" segments-radial=\"36\" segments-height=\"1\" theta-start=\"0\" theta-length=\"360\" open-ended=\"false\" translate=\"0 0 0\" color=\"gray\" opacity=\"1.0\" shader=\"standard\" transparent=\"true\" metalness=\"0.0\" roughness=\"0.5\" side=\"front\" src=\"\">\n  <a-entity geometry=\"primitive: cylinder;\n                      radius: ${radius};\n                      radiusTop: ${radius-top};\n                      radiusBottom: ${radius-bottom};\n                      height: ${height};\n                      segmentsRadial: ${segments-radial};\n                      segmentsHeight: ${segments-height};\n                      thetaStart: ${theta-start};\n                      thetaLength: ${theta-length};\n                      openEnded: ${open-ended};\n                      translate: ${translate}\" material=\"color: ${color};\n                      opacity: ${opacity};\n                      shader: ${shader};\n                      metalness: ${metalness};\n                      roughness: ${roughness};\n                      side: ${side};\n                      transparent: ${transparent};\n                      src: url(${src})\"></a-entity>\n</template>");

})
},{}],18:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-frame\" size=\"10\" thickness=\"0.1\" color=\"#404040\">\n  <a-cube position=\"5 5 0\" rotation=\"0 0 0\" width=\"${thickness}\" height=\"${thickness}\" depth=\"${size}\" color=\"${color}\"></a-cube>\n  <a-cube position=\"5 -5 0\" rotation=\"0 0 0\" width=\"${thickness}\" height=\"${thickness}\" depth=\"${size}\" color=\"${color}\"></a-cube>\n  <a-cube position=\"-5 5 0\" rotation=\"0 0 0\" width=\"${thickness}\" height=\"${thickness}\" depth=\"${size}\" color=\"${color}\"></a-cube>\n  <a-cube position=\"-5 -5 0\" rotation=\"0 0 0\" width=\"${thickness}\" height=\"${thickness}\" depth=\"${size}\" color=\"${color}\"></a-cube>\n\n  <a-cube position=\"0 5 5\" rotation=\"0 90 0\" width=\"${thickness}\" height=\"${thickness}\" depth=\"${size}\" color=\"${color}\"></a-cube>\n  <a-cube position=\"0 5 -5\" rotation=\"0 90 0\" width=\"${thickness}\" height=\"${thickness}\" depth=\"${size}\" color=\"${color}\"></a-cube>\n  <a-cube position=\"0 -5 5\" rotation=\"0 90 0\" width=\"${thickness}\" height=\"${thickness}\" depth=\"${size}\" color=\"${color}\"></a-cube>\n  <a-cube position=\"0 -5 -5\" rotation=\"0 90 0\" width=\"${thickness}\" height=\"${thickness}\" depth=\"${size}\" color=\"${color}\"></a-cube>\n\n  <a-cube position=\"5 0 5\" rotation=\"90 0 0\" width=\"${thickness}\" height=\"${thickness}\" depth=\"${size}\" color=\"${color}\"></a-cube>\n  <a-cube position=\"5 0 -5\" rotation=\"90 0 0\" width=\"${thickness}\" height=\"${thickness}\" depth=\"${size}\" color=\"${color}\"></a-cube>\n  <a-cube position=\"-5 0 5\" rotation=\"90 0 0\" width=\"${thickness}\" height=\"${thickness}\" depth=\"${size}\" color=\"${color}\"></a-cube>\n  <a-cube position=\"-5 0 -5\" rotation=\"90 0 0\" width=\"${thickness}\" height=\"${thickness}\" depth=\"${size}\" color=\"${color}\"></a-cube>\n</template>");

})
},{}],19:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-image\" width=\"1.75\" height=\"1.75\" opacity=\"1.0\" src=\"\">\n  <a-entity geometry=\"primitive: plane;\n                      width: ${width};\n                      height: ${height}\" material=\"shader: flat;\n                      src: url(${src});\n                      opacity: ${opacity};\n                      side: double;\n                      transparent: true\">\n  </a-entity>\n</template>");

})
},{}],20:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-light\" angle=\"60\" color=\"#fff\" ground-color=\"#fff\" decay=\"1\" distance=\"0.0\" exponent=\"10.0\" intensity=\"1.0\" type=\"directional\">\n  <a-entity light=\"angle: ${angle};\n                   color: ${color};\n                   groundColor: ${ground-color};\n                   decay: ${decay};\n                   distance: ${distance};\n                   exponent: ${exponent};\n                   intensity: ${intensity};\n                   type: ${type}\">\n  </a-entity>\n</template>");

})
},{}],21:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-model\" opacity=\"1.0\" src=\"\" format=\"collada\">\n  <a-entity material=\"opacity: ${opacity}\" loader=\"src: url(${src}); format: ${format}\">\n  </a-entity>\n</template>");

})
},{}],22:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-plane\" width=\"1.75\" height=\"1.75\" translate=\"0 0 0\" color=\"gray\" opacity=\"1.0\" shader=\"standard\" transparent=\"true\" metalness=\"0.0\" roughness=\"0.5\" src=\"\">\n  <a-entity geometry=\"primitive: plane;\n                      height: ${height};\n                      width: ${width};\n                      translate: ${translate}\" material=\"color: ${color};\n                      opacity: ${opacity};\n                      shader: ${shader};\n                      transparent: ${transparent};\n                      metalness: ${metalness};\n                      roughness: ${roughness};\n                      side: double;\n                      src: url(${src})\"></a-entity>\n</template>");

})
},{}],23:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-sky\" src=\"\" color=\"#FFF\" radius=\"5000\" segments-width=\"64\" segments-height=\"64\">\n  <a-entity geometry=\"primitive: sphere;\n                      radius: ${radius};\n                      segmentsWidth: ${segments-width};\n                      segmentsHeight: ${segments-height}\" material=\"shader: flat; \n                      src: url(${src});\n                      color: ${color};\n                      fog: false\" scale=\"-1 1 1\">\n  </a-entity>\n</template>");

})
},{}],24:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-sphere\" radius=\"0.85\" segments-width=\"36\" segments-height=\"18\" translate=\"0 0 0\" color=\"gray\" opacity=\"1.0\" shader=\"standard\" transparent=\"true\" metalness=\"0.0\" roughness=\"0.5\" src=\"\">\n  <a-entity geometry=\"primitive: sphere;\n                      radius: ${radius};\n                      segmentsWidth: ${segments-width};\n                      segmentsHeight: ${segments-height};\n                      translate: ${translate}\" material=\"color: ${color};\n                      opacity: ${opacity};\n                      shader: ${shader};\n                      transparent: ${transparent};\n                      metalness: ${metalness};\n                      roughness: ${roughness};\n                      src: url(${src})\"></a-entity>\n</template>");

})
},{}],25:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-video\" src=\"\" width=\"3\" height=\"1.75\" translate=\"0 0 0\" autoplay=\"true\" loop=\"true\" crossorigin=\"anonymous\">\n  <video id=\"video\" src=\"${src}\" width=\"${width}\" height=\"${height}\" autoplay=\"${autoplay}\" loop=\"${loop}\" crossorigin=\"${crossOrigin}\" style=\"display: none\">\n  </video>\n  <a-entity geometry=\"primitive: plane;\n                      height: ${height};\n                      width: ${width};\n                      translate: ${translate}\" material=\"shader: flat; src: #video\">\n  </a-entity>\n</template>");

})
},{}],26:[function(require,module,exports){
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<template is=\"a-template\" element=\"a-videosphere\" src=\"\" radius=\"5000\" segments-width=\"64\" segments-height=\"64\" autoplay=\"true\" loop=\"true\" crossorigin=\"anonymous\">\n  <video id=\"video\" src=\"${src}\" width=\"1000\" height=\"500\" autoplay=\"${autoplay}\" loop=\"${loop}\" crossorigin=\"${crossOrigin}\" style=\"display: none\">\n  </video>\n  <a-entity geometry=\"primitive: sphere;\n                      radius: ${radius};\n                      segmentsWidth: ${segments-width};\n                      segmentsHeight: ${segments-height};\" material=\"shader: flat; src: #video;\" scale=\"-1 1 1\">\n  </a-entity>\n</template>");

})
},{}],27:[function(require,module,exports){
require("./a-camera.html");
require("./a-cube.html");
require("./a-curvedimage.html");
require("./a-cylinder.html");
require("./a-frame.html");
require("./a-image.html");
require("./a-light.html");
require("./a-model.html");
require("./a-plane.html");
require("./a-sky/index.html");
require("./a-sphere.html");
require("./a-video.html");
require("./a-videosphere.html");
document.addEventListener("DOMContentLoaded",function() {
var head = document.getElementsByTagName("head")[0];
head.insertAdjacentHTML("beforeend","<meta charset=\"utf-8\">");

})
},{"./a-camera.html":14,"./a-cube.html":15,"./a-curvedimage.html":16,"./a-cylinder.html":17,"./a-frame.html":18,"./a-image.html":19,"./a-light.html":20,"./a-model.html":21,"./a-plane.html":22,"./a-sky/index.html":23,"./a-sphere.html":24,"./a-video.html":25,"./a-videosphere.html":26}],28:[function(require,module,exports){
var aframeCore = require('aframe-core');
var coreElements = require('./elements/');
var pkg = require('./package');
var registerTemplate = require('./elements/lib/register-template');

module.exports = {
  // Main library.
  aframeCore: aframeCore,

  // Custom elements.
  elements: {
    core: coreElements
  },

  // Register custom elements.
  registerTemplate: registerTemplate,

  // Package version.
  version: pkg.version
};

},{"./elements/":11,"./elements/lib/register-template":12,"./package":91,"aframe-core":69}],29:[function(require,module,exports){
/**
 * @license
 * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
 * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
 * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
 * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
 * Code distributed by Google as part of the polymer project is also
 * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
 */
// @version 0.7.14-c469b00
if (typeof WeakMap === "undefined") {
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}

(function(global) {
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  var scheduledObservers = [];
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    scheduledObservers.push(observer);
    if (!isScheduled) {
      isScheduled = true;
      setImmediate(dispatchCallbacks);
    }
  }
  function wrapIfNeeded(node) {
    return window.ShadowDOMPolyfill && window.ShadowDOMPolyfill.wrapIfNeeded(node) || node;
  }
  function dispatchCallbacks() {
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    var observers = scheduledObservers;
    scheduledObservers = [];
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    observers.forEach(function(observer) {
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      removeTransientObserversFor(observer);
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          break;
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    disconnect: function() {
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      this.records_ = [];
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    this.attributeName = null;
    this.attributeNamespace = null;
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  function copyMutationRecord(original) {
    var record = new MutationRecord(original.type, original.target);
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    record.previousSibling = original.previousSibling;
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    currentRecord = recordWithOldValue = undefined;
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  function recordRepresentsCurrentMutation(record) {
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    this.transientObservedNodes = [];
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    enqueue: function(record) {
      var records = this.observer.records_;
      var length = records.length;
      if (records.length > 0) {
        var lastRecord = records[length - 1];
        var recordToReplaceLast = selectRecord(lastRecord, record);
        if (recordToReplaceLast) {
          records[length - 1] = recordToReplaceLast;
          return;
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      } else {
        scheduleCallback(this.observer);
      }
      records[length] = record;
    },
    addListeners: function() {
      this.addListeners_(this.target);
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    addListeners_: function(node) {
      var options = this.options;
      if (options.attributes) node.addEventListener("DOMAttrModified", this, true);
      if (options.characterData) node.addEventListener("DOMCharacterDataModified", this, true);
      if (options.childList) node.addEventListener("DOMNodeInserted", this, true);
      if (options.childList || options.subtree) node.addEventListener("DOMNodeRemoved", this, true);
    },
    removeListeners: function() {
      this.removeListeners_(this.target);
    },
    removeListeners_: function(node) {
      var options = this.options;
      if (options.attributes) node.removeEventListener("DOMAttrModified", this, true);
      if (options.characterData) node.removeEventListener("DOMCharacterDataModified", this, true);
      if (options.childList) node.removeEventListener("DOMNodeInserted", this, true);
      if (options.childList || options.subtree) node.removeEventListener("DOMNodeRemoved", this, true);
    },
    addTransientObserver: function(node) {
      if (node === this.target) return;
      this.addListeners_(node);
      this.transientObservedNodes.push(node);
      var registrations = registrationsTable.get(node);
      if (!registrations) registrationsTable.set(node, registrations = []);
      registrations.push(this);
    },
    removeTransientObservers: function() {
      var transientObservedNodes = this.transientObservedNodes;
      this.transientObservedNodes = [];
      transientObservedNodes.forEach(function(node) {
        this.removeListeners_(node);
        var registrations = registrationsTable.get(node);
        for (var i = 0; i < registrations.length; i++) {
          if (registrations[i] === this) {
            registrations.splice(i, 1);
            break;
          }
        }
      }, this);
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    handleEvent: function(e) {
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        var record = new getRecord("attributes", target);
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        record.attributeNamespace = namespace;
        var oldValue = e.attrChange === MutationEvent.ADDITION ? null : e.prevValue;
        forEachAncestorAndObserverEnqueueRecord(target, function(options) {
          if (!options.attributes) return;
          if (options.attributeFilter && options.attributeFilter.length && options.attributeFilter.indexOf(name) === -1 && options.attributeFilter.indexOf(namespace) === -1) {
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          if (options.attributeOldValue) return getRecordWithOldValue(oldValue);
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        break;

       case "DOMCharacterDataModified":
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          if (options.characterDataOldValue) return getRecordWithOldValue(oldValue);
          return record;
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        break;

       case "DOMNodeRemoved":
        this.addTransientObserver(e.target);

       case "DOMNodeInserted":
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  global.JsMutationObserver = JsMutationObserver;
  if (!global.MutationObserver) global.MutationObserver = JsMutationObserver;
})(self);

window.HTMLImports = window.HTMLImports || {
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};

(function(scope) {
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    },
    configurable: true
  };
  Object.defineProperty(document, "_currentScript", currentScriptDescriptor);
  Object.defineProperty(rootDocument, "_currentScript", currentScriptDescriptor);
  var isIE = /Trident/.test(navigator.userAgent);
  function whenReady(callback, doc) {
    doc = doc || rootDocument;
    whenDocumentReady(function() {
      watchImportsLoad(callback, doc);
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window.HTMLImports.addModule(function(scope) {
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  var parser = scope.parser;
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    documentPreloadSelectors: IMPORT_SELECTOR,
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    doc.head.appendChild(base);
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  }
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      get: function() {
        var base = document.querySelector("base");
        return base ? base.href : window.location.href;
      },
      configurable: true
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    Object.defineProperty(document, "baseURI", baseURIDescriptor);
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});

window.HTMLImports.addModule(function(scope) {
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        }
        loading = this.shouldLoadNode(n);
        if (loading) {
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          parser.parseDynamic(n, loading);
        }
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});

(function(scope) {
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  }
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      var e = document.createEvent("CustomEvent");
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          get: function() {
            return true;
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    };
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  }
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  }
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    bootstrap();
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})(window.HTMLImports);
},{}],30:[function(require,module,exports){
(function (global){
var THREE = global.THREE = require('three-dev');

// Allow cross-origin images to be loaded.
if (THREE.TextureLoader) {
  THREE.TextureLoader.prototype.crossOrigin = '';
}

// TODO: Eventually include these only if they are needed by a component.

require('../node_modules/three-dev/examples/js/loaders/OBJLoader');  // THREE.OBJLoader
require('../node_modules/three-dev/examples/js/loaders/ColladaLoader');  // THREE.ColladaLoader
require('../lib/vendor/Raycaster');  // THREE.Raycaster
require('../node_modules/three-dev/examples/js/controls/VRControls');  // THREE.VRControls
require('../node_modules/three-dev/examples/js/effects/VREffect');  // THREE.VREffect

module.exports = THREE;

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{"../lib/vendor/Raycaster":31,"../node_modules/three-dev/examples/js/controls/VRControls":36,"../node_modules/three-dev/examples/js/effects/VREffect":37,"../node_modules/three-dev/examples/js/loaders/ColladaLoader":38,"../node_modules/three-dev/examples/js/loaders/OBJLoader":39,"three-dev":35}],31:[function(require,module,exports){
/**
 * @author mrdoob / http://mrdoob.com/
 * @author bhouston / http://clara.io/
 * @author stephomi / http://stephaneginier.com/
 */

( function ( THREE ) {

	THREE.Raycaster = function ( origin, direction, near, far ) {

		this.ray = new THREE.Ray( origin, direction );
		// direction is assumed to be normalized (for accurate distance calculations)

		this.near = near || 0;
		this.far = far || Infinity;

		this.params = {
			Mesh: {},
			Line: {},
			LOD: {},
			Points: { threshold: 1 },
			Sprite: {}
		};

		Object.defineProperties( this.params, {
			PointCloud: {
				get: function () {
					console.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' );
					return this.Points;
				}
			}
		} );

	};

	function ascSort( a, b ) {

		return a.distance - b.distance;

	}

	function intersectObject( object, raycaster, intersects, recursive ) {

		if ( object.visible === false ) return;

		object.raycast( raycaster, intersects );

		if ( recursive === true ) {

			var children = object.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				intersectObject( children[ i ], raycaster, intersects, true );

			}

		}

	}

	//

	THREE.Raycaster.prototype = {

		constructor: THREE.Raycaster,

		linePrecision: 1,

		set: function ( origin, direction ) {

			// direction is assumed to be normalized (for accurate distance calculations)

			this.ray.set( origin, direction );

		},

		setFromCamera: function ( coords, camera ) {

			if ( camera instanceof THREE.PerspectiveCamera ) {

				this.ray.origin.setFromMatrixPosition( camera.matrixWorld );
				this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();

			} else if ( camera instanceof THREE.OrthographicCamera ) {

				this.ray.origin.set( coords.x, coords.y, - 1 ).unproject( camera );
				this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );

			} else {

				console.error( 'THREE.Raycaster: Unsupported camera type.' );

			}

		},

		intersectObject: function ( object, recursive ) {

			var intersects = [];

			intersectObject( object, this, intersects, recursive );

			intersects.sort( ascSort );

			return intersects;

		},

		intersectObjects: function ( objects, recursive ) {

			var intersects = [];

			if ( Array.isArray( objects ) === false ) {

				console.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' );
				return intersects;

			}

			for ( var i = 0, l = objects.length; i < l; i ++ ) {

				intersectObject( objects[ i ], this, intersects, recursive );

			}

			intersects.sort( ascSort );

			return intersects;

		}

	};

}( THREE ) );

},{}],32:[function(require,module,exports){
// performance.now() polyfill from https://gist.github.com/paulirish/5438650

(function(){

  // prepare base perf object
  if (typeof window.performance === 'undefined') {
      window.performance = {};
  }

  if (!window.performance.now){

    var nowOffset = Date.now();

    if (performance.timing && performance.timing.navigationStart){
      nowOffset = performance.timing.navigationStart
    }


    window.performance.now = function now(){
      return Date.now() - nowOffset;
    }

  }

})();

var rStats = function rStats( settings ) {

    'use strict';

    function importCSS( url ){

        var element = document.createElement('link');
        element.href = url;
        element.rel = 'stylesheet';
        element.type = 'text/css';
        document.getElementsByTagName('head')[0].appendChild(element)

    }

    var _settings = settings || {},
        _colours = [ '#850700', '#c74900', '#fcb300', '#284280', '#4c7c0c' ];

    importCSS( 'http://fonts.googleapis.com/css?family=Roboto+Condensed:400,700,300' );
    importCSS( ( _settings.CSSPath?_settings.CSSPath:'' ) + 'rStats.css' );

    if( !_settings.values ) _settings.values = {};

    function Graph( _dom, _id, _def ) {

        var _def = _def || {};
        var _canvas = document.createElement( 'canvas' ),
            _ctx = _canvas.getContext( '2d' ),
            _max = 0,
            _current = 0;

        var c = _def.color?_def.color:'#666666';
        var wc = _def.warningColor?_def.warningColor:'#b70000';

        var _dotCanvas = document.createElement( 'canvas' ),
            _dotCtx = _dotCanvas.getContext( '2d' );
        _dotCanvas.width = 1;
        _dotCanvas.height = 2 * _elHeight;
        _dotCtx.fillStyle = '#444444';
        _dotCtx.fillRect( 0, 0, 1, 2 * _elHeight );
        _dotCtx.fillStyle = c;
        _dotCtx.fillRect( 0, _elHeight, 1, _elHeight );
        _dotCtx.fillStyle = '#ffffff';
        _dotCtx.globalAlpha = .5;
        _dotCtx.fillRect( 0, _elHeight, 1, 1 );
        _dotCtx.globalAlpha = 1;

        var _alarmCanvas = document.createElement( 'canvas' ),
            _alarmCtx = _alarmCanvas.getContext( '2d' );
        _alarmCanvas.width = 1;
        _alarmCanvas.height = 2 * _elHeight;
        _alarmCtx.fillStyle = '#444444';
        _alarmCtx.fillRect( 0, 0, 1, 2 * _elHeight );
        _alarmCtx.fillStyle = '#b70000';
        _alarmCtx.fillRect( 0, _elHeight, 1, _elHeight );
        _alarmCtx.globalAlpha = .5;
        _alarmCtx.fillStyle = '#ffffff';
        _alarmCtx.fillRect( 0, _elHeight, 1, 1 );
        _alarmCtx.globalAlpha = 1;

        function _init() {

            _canvas.width = _elWidth;
            _canvas.height = _elHeight;
            _canvas.style.width = _canvas.width + 'px';
            _canvas.style.height = _canvas.height + 'px';
            _canvas.className = 'rs-canvas';
            _dom.appendChild( _canvas );

            _ctx.fillStyle = '#444444';
            _ctx.fillRect( 0, 0, _canvas.width, _canvas.height );

        }

        function _draw( v, alarm ) {
            _current += ( v - _current ) * .1;
            _max *= .99;
            if( _current > _max ) _max = _current;
            _ctx.drawImage( _canvas, 1, 0, _canvas.width - 1, _canvas.height, 0, 0, _canvas.width - 1, _canvas.height );
            if( alarm ) {
                _ctx.drawImage( _alarmCanvas, _canvas.width - 1, _canvas.height - _current * _canvas.height / _max - _elHeight );
            } else {
                _ctx.drawImage( _dotCanvas, _canvas.width - 1, _canvas.height - _current * _canvas.height / _max - _elHeight );
            }
        }

        _init();

        return {
            draw: _draw
        }

    }

    function StackGraph( _dom, _num ) {

        var _canvas = document.createElement( 'canvas' ),
            _ctx = _canvas.getContext( '2d' ),
            _max = 0,
            _current = 0;

        function _init() {

            _canvas.width = _elWidth;
            _canvas.height = _elHeight * _num;
            _canvas.style.width = _canvas.width + 'px';
            _canvas.style.height = _canvas.height + 'px';
            _canvas.className = 'rs-canvas';
            _dom.appendChild( _canvas );

            _ctx.fillStyle = '#444444';
            _ctx.fillRect( 0, 0, _canvas.width, _canvas.height );

        }

        function _draw( v ) {
            _ctx.drawImage( _canvas, 1, 0, _canvas.width - 1, _canvas.height, 0, 0, _canvas.width - 1, _canvas.height );
            var th = 0;
            for( var j in v ) {
                var h = v[ j ] * _canvas.height;
                _ctx.fillStyle = _colours[ j ];
                _ctx.fillRect( _canvas.width - 1, th, 1, h );
                th += h;
            }
        }

        _init();

        return {
            draw: _draw
        }

    }

    function PerfCounter( id, group ) {

        var _id = id,
            _time,
            _value = 0,
            _total = 0,
            _averageValue = 0,
            _accumValue = 0,
            _accumStart = Date.now(),
            _accumSamples = 0,
            _dom = document.createElement( 'div' ),
            _spanId = document.createElement( 'span' ),
            _spanValue = document.createElement( 'div' ),
            _spanValueText = document.createTextNode( '' ),
            _def = _settings?_settings.values[ _id.toLowerCase() ]:null,
            _graph = new Graph( _dom, _id, _def );

        _dom.className = 'rs-counter-base';

        _spanId.className = 'rs-counter-id'
        _spanId.textContent = ( _def && _def.caption )?_def.caption:_id;

        _spanValue.className = 'rs-counter-value';
        _spanValue.appendChild( _spanValueText );

        _dom.appendChild( _spanId );
        _dom.appendChild( _spanValue );
        if( group ) group.div.appendChild( _dom );
        else _div.appendChild( _dom );

        _time = performance.now();

        function _average( v ) {
            if( _def && _def.average ) {
                _accumValue += v;
                _accumSamples++;
                var t = Date.now();
                if( t - _accumStart >= ( _def.avgMs || 1000 ) ) {
                    _averageValue = _accumValue / _accumSamples;
                    _accumValue = 0;
                    _accumStart = t;
                    _accumSamples = 0;
                }
            }
        }

        function _start(){
            _time = performance.now();
        }

        function _end() {
            _value = performance.now() - _time;
            _average( _value );
        }

        function _tick() {
            _end();
            _start();
        }

        function _draw() {
            var v = ( _def && _def.average )?_averageValue:_value
            _spanValueText.nodeValue = Math.round( v * 100 ) / 100;
            var a = ( _def && ( ( _def.below && _value < _def.below ) || ( _def.over && _value > _def.over ) ) );
            _graph.draw( _value, a );
            _dom.style.color = a?'#b70000':'#ffffff';
        }

        function _frame() {
            var t = performance.now();
            var e = t - _time;
            _total++;
            if( e > 1000 ) {
                _value = _total * 1000 / e;
                _total = 0;
                _time = t;
                _average( _value );
           }
        }

        function _set( v ) {
            _value = v;
            _average( _value );
        }

        return {
            set: _set,
            start: _start,
            tick: _tick,
            end: _end,
            frame: _frame,
            value: function(){ return _value; },
            draw: _draw
        }

    }

    function sample() {

        var _value = 0;

        function _set( v ) {
            _value = v;
        }

        return {
            set: _set,
            value: function(){ return _value; }
        }

    }

    var _base,
        _div,
        _height = null,
        _elHeight = 10,
        _elWidth = 200;

    var _perfCounters = {},
        _samples = {};

    function _perf( id ) {

        id = id.toLowerCase();
        if( id === undefined ) id = 'default';
        if( _perfCounters[ id ] ) return _perfCounters[ id ];

        var group = null;
        if( _settings && _settings.groups ) {
            for( var j in _settings.groups ) {
                var g = _settings.groups[ parseInt( j, 10 ) ];
                if( g.values.indexOf( id.toLowerCase() ) != -1 ) {
                    group = g;
                    continue;
                }
            }
        }

        var p = new PerfCounter( id, group );
        _perfCounters[ id ] = p;
        return p;

    }

    function _init() {

        if( _settings.plugins ) {
            if( !_settings.values ) _settings.values = {};
            if( !_settings.groups ) _settings.groups = [];
            if( !_settings.fractions ) _settings.fractions = [];
            for( var j = 0; j < _settings.plugins.length; j++ ) {
                _settings.plugins[ j ].attach( _perf );
                for( var k in _settings.plugins[ j ].values ) {
                    _settings.values[ k ] = _settings.plugins[ j ].values [ k ];
                }
                _settings.groups = _settings.groups.concat( _settings.plugins[ j ].groups );
                _settings.fractions = _settings.fractions.concat( _settings.plugins[ j ].fractions );
            }
        } else {
            _settings.plugins = {};
        }

        _base = document.createElement( 'div' );
        _base.className = 'rs-base';
        _div = document.createElement( 'div' );
        _div.className = 'rs-container';
        _div.style.height = 'auto';
        _base.appendChild( _div );
        document.body.appendChild( _base );

        var style = window.getComputedStyle( _base, null ).getPropertyValue( 'font-size' );
        //_elHeight = parseFloat( style );

        if( !_settings ) return;

        if( _settings.groups ) {
            for( var j in _settings.groups ) {
                var g = _settings.groups[ parseInt( j, 10 ) ];
                var div = document.createElement( 'div' );
                div.className = 'rs-group';
                g.div = div;
                var h1 = document.createElement( 'h1' );
                h1.textContent = g.caption;
                h1.addEventListener( 'click', function( e ) {
                    this.classList.toggle( 'hidden' );
                    e.preventDefault();
                }.bind( div ) );
                _div.appendChild( h1 );
                _div.appendChild( div );
            }
        }

        if( _settings.fractions ) {
            for( var j in _settings.fractions ) {
                var f = _settings.fractions[ parseInt( j, 10 ) ];
                var div = document.createElement( 'div' );
                div.className = 'rs-fraction';
                var legend = document.createElement( 'div' );
                legend.className = 'rs-legend';

                var h = 0;
                for( var k in _settings.fractions[ j ].steps ) {
                    var p = document.createElement( 'p' );
                    p.textContent = _settings.fractions[ j ].steps[ k ];
                    p.style.color = _colours[ h ];
                    legend.appendChild( p );
                    h++;
                }
                div.appendChild( legend );
                div.style.height = h * _elHeight + 'px';
                f.div = div;
                var graph = new StackGraph( div, h );
                f.graph = graph;
                _div.appendChild( div );
            }
        }

    }

    function _update() {

        for( var j in _settings.plugins ) {
            _settings.plugins[ j ].update();
        }

        for( var j in _perfCounters ) {
            _perfCounters[ j ].draw();
        }

        if( _settings && _settings.fractions ) {
            for( var j in _settings.fractions ) {
                var f = _settings.fractions[ parseInt( j, 10 ) ];
                var v = [];
                var base = _perfCounters[ f.base.toLowerCase() ];
                if( base ) {
                    base = base.value();
                    for( var k in _settings.fractions[ j ].steps ) {
                        var s = _settings.fractions[ j ].steps[ parseInt( k, 10 ) ].toLowerCase();
                        var val = _perfCounters[ s ];
                        if( val ) {
                            v.push( val.value() / base );
                        }
                    }
                }
                f.graph.draw( v );
            }
        }

        /*if( _height != _div.clientHeight ) {
            _height = _div.clientHeight;
            _base.style.height = _height + 2 * _elHeight + 'px';
        console.log( _base.clientHeight );
        }*/

    }

    _init();

    return function( id ) {
        if( id ) return _perf( id );
        return {
            update: _update
        }
    }

};

if (typeof module !== "undefined") { module.exports = rStats; }
},{}],33:[function(require,module,exports){
/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var Util = {};

Util.base64 = function(mimeType, base64) {
  return 'data:' + mimeType + ';base64,' + base64;
};

Util.isMobile = function() {
  var check = false;
  (function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4)))check = true})(navigator.userAgent||navigator.vendor||window.opera);
  return check;
};

Util.isIOS = function() {
  return /(iPad|iPhone|iPod)/g.test(navigator.userAgent);
};

Util.isIFrame = function() {
  try {
    return window.self !== window.top;
  } catch (e) {
    return true;
  }
};

Util.appendQueryParameter = function(url, key, value) {
  // Determine delimiter based on if the URL already GET parameters in it.
  var delimiter = (url.indexOf('?') < 0 ? '?' : '&');
  url += delimiter + key + '=' + value;
  return url;
};

// From http://goo.gl/4WX3tg
Util.getQueryParameter = function(name) {
  name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
  var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
      results = regex.exec(location.search);
  return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
};

Util.isLandscapeMode = function() {
  return (window.orientation == 90 || window.orientation == -90);
};


module.exports = Util;

},{}],34:[function(require,module,exports){
/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var Util = require('./util.js');

/**
 * Android and iOS compatible wakelock implementation.
 *
 * Refactored thanks to dkovalev@.
 */
function AndroidWakeLock() {
  var video = document.createElement('video');

  video.addEventListener('ended', function() {
    video.play();
  });

  this.request = function() {
    if (video.paused) {
      // Base64 version of videos_src/no-sleep-60s.webm.
      video.src = Util.base64('video/webm', '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');
      video.play();
    }
  };

  this.release = function() {
    video.pause();
    video.src = '';
  };
}

function iOSWakeLock() {
  var timer = null;

  this.request = function() {
    if (!timer) {
      timer = setInterval(function() {
        window.location = window.location;
        setTimeout(window.stop, 0);
      }, 30000);
    }
  }

  this.release = function() {
    if (timer) {
      clearInterval(timer);
      timer = null;
    }
  }
}


function getWakeLock() {
  var userAgent = navigator.userAgent || navigator.vendor || window.opera;
  if (userAgent.match(/iPhone/i) || userAgent.match(/iPod/i)) {
    return iOSWakeLock;
  } else {
    return AndroidWakeLock;
  }
}

module.exports = getWakeLock();

},{"./util.js":33}],35:[function(require,module,exports){
// File:src/Three.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

var THREE = { REVISION: '74dev' };

//

if ( typeof define === 'function' && define.amd ) {

	define( 'three', THREE );

} else if ( 'undefined' !== typeof exports && 'undefined' !== typeof module ) {

	module.exports = THREE;

}


// polyfills

if ( self.requestAnimationFrame === undefined || self.cancelAnimationFrame === undefined ) {

	// Missing in Android stock browser.

	( function () {

		var lastTime = 0;
		var vendors = [ 'ms', 'moz', 'webkit', 'o' ];

		for ( var x = 0; x < vendors.length && ! self.requestAnimationFrame; ++ x ) {

			self.requestAnimationFrame = self[ vendors[ x ] + 'RequestAnimationFrame' ];
			self.cancelAnimationFrame = self[ vendors[ x ] + 'CancelAnimationFrame' ] || self[ vendors[ x ] + 'CancelRequestAnimationFrame' ];

		}

		if ( self.requestAnimationFrame === undefined && self.setTimeout !== undefined ) {

			self.requestAnimationFrame = function ( callback ) {

				var currTime = Date.now(), timeToCall = Math.max( 0, 16 - ( currTime - lastTime ) );
				var id = self.setTimeout( function () {

					callback( currTime + timeToCall );

				}, timeToCall );
				lastTime = currTime + timeToCall;
				return id;

			};

		}

		if ( self.cancelAnimationFrame === undefined && self.clearTimeout !== undefined ) {

			self.cancelAnimationFrame = function ( id ) {

				self.clearTimeout( id );

			};

		}

	} )();

}

//

if ( self.performance === undefined ) {

	self.performance = {};

}

if ( self.performance.now === undefined ) {

	( function () {

		var start = Date.now();

		self.performance.now = function () {

			return Date.now() - start;

		}

	} )();

}

//

if ( Number.EPSILON === undefined ) {

	Number.EPSILON = Math.pow( 2, - 52 );

}

//

if ( Math.sign === undefined ) {

	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign

	Math.sign = function ( x ) {

		return ( x < 0 ) ? - 1 : ( x > 0 ) ? 1 : + x;

	};

}

if ( Function.prototype.name === undefined && Object.defineProperty !== undefined ) {

	// Missing in IE9-11.
	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name

	Object.defineProperty( Function.prototype, 'name', {

		get: function () {

			return this.toString().match( /^\s*function\s*(\S*)\s*\(/ )[ 1 ];

		}

	} );

}

if ( Object.assign === undefined ) {

	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign

	Object.defineProperty( Object, 'assign', {

		writable: true,
		configurable: true,

		value: function ( target ) {

			'use strict';

			if ( target === undefined || target === null ) {

				throw new TypeError( "Cannot convert first argument to object" );

			}

			var to = Object( target );

			for ( var i = 1, n = arguments.length; i !== n; ++ i ) {

				var nextSource = arguments[ i ];

				if ( nextSource === undefined || nextSource === null ) continue;

				nextSource = Object( nextSource );

				var keysArray = Object.keys( nextSource );

				for ( var nextIndex = 0, len = keysArray.length; nextIndex !== len; ++ nextIndex ) {

					var nextKey = keysArray[ nextIndex ];
					var desc = Object.getOwnPropertyDescriptor( nextSource, nextKey );

					if ( desc !== undefined && desc.enumerable ) {

						to[ nextKey ] = nextSource[ nextKey ];

					}

				}

			}

			return to;

		}

	} );

}

// https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent.button

THREE.MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2 };

// GL STATE CONSTANTS

THREE.CullFaceNone = 0;
THREE.CullFaceBack = 1;
THREE.CullFaceFront = 2;
THREE.CullFaceFrontBack = 3;

THREE.FrontFaceDirectionCW = 0;
THREE.FrontFaceDirectionCCW = 1;

// SHADOWING TYPES

THREE.BasicShadowMap = 0;
THREE.PCFShadowMap = 1;
THREE.PCFSoftShadowMap = 2;

// MATERIAL CONSTANTS

// side

THREE.FrontSide = 0;
THREE.BackSide = 1;
THREE.DoubleSide = 2;

// shading

THREE.FlatShading = 1;
THREE.SmoothShading = 2;

// colors

THREE.NoColors = 0;
THREE.FaceColors = 1;
THREE.VertexColors = 2;

// blending modes

THREE.NoBlending = 0;
THREE.NormalBlending = 1;
THREE.AdditiveBlending = 2;
THREE.SubtractiveBlending = 3;
THREE.MultiplyBlending = 4;
THREE.CustomBlending = 5;

// custom blending equations
// (numbers start from 100 not to clash with other
// mappings to OpenGL constants defined in Texture.js)

THREE.AddEquation = 100;
THREE.SubtractEquation = 101;
THREE.ReverseSubtractEquation = 102;
THREE.MinEquation = 103;
THREE.MaxEquation = 104;

// custom blending destination factors

THREE.ZeroFactor = 200;
THREE.OneFactor = 201;
THREE.SrcColorFactor = 202;
THREE.OneMinusSrcColorFactor = 203;
THREE.SrcAlphaFactor = 204;
THREE.OneMinusSrcAlphaFactor = 205;
THREE.DstAlphaFactor = 206;
THREE.OneMinusDstAlphaFactor = 207;

// custom blending source factors

//THREE.ZeroFactor = 200;
//THREE.OneFactor = 201;
//THREE.SrcAlphaFactor = 204;
//THREE.OneMinusSrcAlphaFactor = 205;
//THREE.DstAlphaFactor = 206;
//THREE.OneMinusDstAlphaFactor = 207;
THREE.DstColorFactor = 208;
THREE.OneMinusDstColorFactor = 209;
THREE.SrcAlphaSaturateFactor = 210;

// depth modes

THREE.NeverDepth = 0;
THREE.AlwaysDepth = 1;
THREE.LessDepth = 2;
THREE.LessEqualDepth = 3;
THREE.EqualDepth = 4;
THREE.GreaterEqualDepth = 5;
THREE.GreaterDepth = 6;
THREE.NotEqualDepth = 7;


// TEXTURE CONSTANTS

THREE.MultiplyOperation = 0;
THREE.MixOperation = 1;
THREE.AddOperation = 2;

// Mapping modes

THREE.UVMapping = 300;

THREE.CubeReflectionMapping = 301;
THREE.CubeRefractionMapping = 302;

THREE.EquirectangularReflectionMapping = 303;
THREE.EquirectangularRefractionMapping = 304;

THREE.SphericalReflectionMapping = 305;

// Wrapping modes

THREE.RepeatWrapping = 1000;
THREE.ClampToEdgeWrapping = 1001;
THREE.MirroredRepeatWrapping = 1002;

// Filters

THREE.NearestFilter = 1003;
THREE.NearestMipMapNearestFilter = 1004;
THREE.NearestMipMapLinearFilter = 1005;
THREE.LinearFilter = 1006;
THREE.LinearMipMapNearestFilter = 1007;
THREE.LinearMipMapLinearFilter = 1008;

// Data types

THREE.UnsignedByteType = 1009;
THREE.ByteType = 1010;
THREE.ShortType = 1011;
THREE.UnsignedShortType = 1012;
THREE.IntType = 1013;
THREE.UnsignedIntType = 1014;
THREE.FloatType = 1015;
THREE.HalfFloatType = 1025;

// Pixel types

//THREE.UnsignedByteType = 1009;
THREE.UnsignedShort4444Type = 1016;
THREE.UnsignedShort5551Type = 1017;
THREE.UnsignedShort565Type = 1018;

// Pixel formats

THREE.AlphaFormat = 1019;
THREE.RGBFormat = 1020;
THREE.RGBAFormat = 1021;
THREE.LuminanceFormat = 1022;
THREE.LuminanceAlphaFormat = 1023;
// THREE.RGBEFormat handled as THREE.RGBAFormat in shaders
THREE.RGBEFormat = THREE.RGBAFormat; //1024;

// DDS / ST3C Compressed texture formats

THREE.RGB_S3TC_DXT1_Format = 2001;
THREE.RGBA_S3TC_DXT1_Format = 2002;
THREE.RGBA_S3TC_DXT3_Format = 2003;
THREE.RGBA_S3TC_DXT5_Format = 2004;


// PVRTC compressed texture formats

THREE.RGB_PVRTC_4BPPV1_Format = 2100;
THREE.RGB_PVRTC_2BPPV1_Format = 2101;
THREE.RGBA_PVRTC_4BPPV1_Format = 2102;
THREE.RGBA_PVRTC_2BPPV1_Format = 2103;

// Loop styles for AnimationAction

THREE.LoopOnce = 2200;
THREE.LoopRepeat = 2201;
THREE.LoopPingPong = 2202;

// Interpolation

THREE.InterpolateDiscrete = 2300;
THREE.InterpolateLinear = 2301;
THREE.InterpolateSmooth = 2302;

// Interpolant ending modes

THREE.ZeroCurvatureEnding = 2400;
THREE.ZeroSlopeEnding = 2401;
THREE.WrapAroundEnding = 2402;

// Triangle Draw modes

THREE.TrianglesDrawMode = 0;
THREE.TriangleStripDrawMode = 1;
THREE.TriangleFanDrawMode = 2;

// File:src/math/Color.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Color = function ( color ) {

	if ( arguments.length === 3 ) {

		return this.fromArray( arguments );

	}

	return this.set( color );

};

THREE.Color.prototype = {

	constructor: THREE.Color,

	r: 1, g: 1, b: 1,

	set: function ( value ) {

		if ( value instanceof THREE.Color ) {

			this.copy( value );

		} else if ( typeof value === 'number' ) {

			this.setHex( value );

		} else if ( typeof value === 'string' ) {

			this.setStyle( value );

		}

		return this;

	},

	setScalar: function ( scalar ) {

		this.r = scalar;
		this.g = scalar;
		this.b = scalar;

	},

	setHex: function ( hex ) {

		hex = Math.floor( hex );

		this.r = ( hex >> 16 & 255 ) / 255;
		this.g = ( hex >> 8 & 255 ) / 255;
		this.b = ( hex & 255 ) / 255;

		return this;

	},

	setRGB: function ( r, g, b ) {

		this.r = r;
		this.g = g;
		this.b = b;

		return this;

	},

	setHSL: function () {

		function hue2rgb( p, q, t ) {

			if ( t < 0 ) t += 1;
			if ( t > 1 ) t -= 1;
			if ( t < 1 / 6 ) return p + ( q - p ) * 6 * t;
			if ( t < 1 / 2 ) return q;
			if ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t );
			return p;

		}

		return function ( h, s, l ) {

			// h,s,l ranges are in 0.0 - 1.0
			h = THREE.Math.euclideanModulo( h, 1 );
			s = THREE.Math.clamp( s, 0, 1 );
			l = THREE.Math.clamp( l, 0, 1 );

			if ( s === 0 ) {

				this.r = this.g = this.b = l;

			} else {

				var p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s );
				var q = ( 2 * l ) - p;

				this.r = hue2rgb( q, p, h + 1 / 3 );
				this.g = hue2rgb( q, p, h );
				this.b = hue2rgb( q, p, h - 1 / 3 );

			}

			return this;

		};

	}(),

	setStyle: function ( style ) {

		function handleAlpha( string ) {

			if ( string === undefined ) return;

			if ( parseFloat( string ) < 1 ) {

				console.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' );

			}

		}


		var m;

		if ( m = /^((?:rgb|hsl)a?)\(\s*([^\)]*)\)/.exec( style ) ) {

			// rgb / hsl

			var color;
			var name = m[ 1 ];
			var components = m[ 2 ];

			switch ( name ) {

				case 'rgb':
				case 'rgba':

					if ( color = /^(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {

						// rgb(255,0,0) rgba(255,0,0,0.5)
						this.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255;
						this.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255;
						this.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255;

						handleAlpha( color[ 5 ] );

						return this;

					}

					if ( color = /^(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {

						// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
						this.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100;
						this.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100;
						this.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100;

						handleAlpha( color[ 5 ] );

						return this;

					}

					break;

				case 'hsl':
				case 'hsla':

					if ( color = /^([0-9]*\.?[0-9]+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {

						// hsl(120,50%,50%) hsla(120,50%,50%,0.5)
						var h = parseFloat( color[ 1 ] ) / 360;
						var s = parseInt( color[ 2 ], 10 ) / 100;
						var l = parseInt( color[ 3 ], 10 ) / 100;

						handleAlpha( color[ 5 ] );

						return this.setHSL( h, s, l );

					}

					break;

			}

		} else if ( m = /^\#([A-Fa-f0-9]+)$/.exec( style ) ) {

			// hex color

			var hex = m[ 1 ];
			var size = hex.length;

			if ( size === 3 ) {

				// #ff0
				this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255;
				this.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255;
				this.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255;

				return this;

			} else if ( size === 6 ) {

				// #ff0000
				this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255;
				this.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255;
				this.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255;

				return this;

			}

		}

		if ( style && style.length > 0 ) {

			// color keywords
			var hex = THREE.ColorKeywords[ style ];

			if ( hex !== undefined ) {

				// red
				this.setHex( hex );

			} else {

				// unknown color
				console.warn( 'THREE.Color: Unknown color ' + style );

			}

		}

		return this;

	},

	clone: function () {

		return new this.constructor( this.r, this.g, this.b );

	},

	copy: function ( color ) {

		this.r = color.r;
		this.g = color.g;
		this.b = color.b;

		return this;

	},

	copyGammaToLinear: function ( color, gammaFactor ) {

		if ( gammaFactor === undefined ) gammaFactor = 2.0;

		this.r = Math.pow( color.r, gammaFactor );
		this.g = Math.pow( color.g, gammaFactor );
		this.b = Math.pow( color.b, gammaFactor );

		return this;

	},

	copyLinearToGamma: function ( color, gammaFactor ) {

		if ( gammaFactor === undefined ) gammaFactor = 2.0;

		var safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0;

		this.r = Math.pow( color.r, safeInverse );
		this.g = Math.pow( color.g, safeInverse );
		this.b = Math.pow( color.b, safeInverse );

		return this;

	},

	convertGammaToLinear: function () {

		var r = this.r, g = this.g, b = this.b;

		this.r = r * r;
		this.g = g * g;
		this.b = b * b;

		return this;

	},

	convertLinearToGamma: function () {

		this.r = Math.sqrt( this.r );
		this.g = Math.sqrt( this.g );
		this.b = Math.sqrt( this.b );

		return this;

	},

	getHex: function () {

		return ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0;

	},

	getHexString: function () {

		return ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 );

	},

	getHSL: function ( optionalTarget ) {

		// h,s,l ranges are in 0.0 - 1.0

		var hsl = optionalTarget || { h: 0, s: 0, l: 0 };

		var r = this.r, g = this.g, b = this.b;

		var max = Math.max( r, g, b );
		var min = Math.min( r, g, b );

		var hue, saturation;
		var lightness = ( min + max ) / 2.0;

		if ( min === max ) {

			hue = 0;
			saturation = 0;

		} else {

			var delta = max - min;

			saturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min );

			switch ( max ) {

				case r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break;
				case g: hue = ( b - r ) / delta + 2; break;
				case b: hue = ( r - g ) / delta + 4; break;

			}

			hue /= 6;

		}

		hsl.h = hue;
		hsl.s = saturation;
		hsl.l = lightness;

		return hsl;

	},

	getStyle: function () {

		return 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')';

	},

	offsetHSL: function ( h, s, l ) {

		var hsl = this.getHSL();

		hsl.h += h; hsl.s += s; hsl.l += l;

		this.setHSL( hsl.h, hsl.s, hsl.l );

		return this;

	},

	add: function ( color ) {

		this.r += color.r;
		this.g += color.g;
		this.b += color.b;

		return this;

	},

	addColors: function ( color1, color2 ) {

		this.r = color1.r + color2.r;
		this.g = color1.g + color2.g;
		this.b = color1.b + color2.b;

		return this;

	},

	addScalar: function ( s ) {

		this.r += s;
		this.g += s;
		this.b += s;

		return this;

	},

	multiply: function ( color ) {

		this.r *= color.r;
		this.g *= color.g;
		this.b *= color.b;

		return this;

	},

	multiplyScalar: function ( s ) {

		this.r *= s;
		this.g *= s;
		this.b *= s;

		return this;

	},

	lerp: function ( color, alpha ) {

		this.r += ( color.r - this.r ) * alpha;
		this.g += ( color.g - this.g ) * alpha;
		this.b += ( color.b - this.b ) * alpha;

		return this;

	},

	equals: function ( c ) {

		return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );

	},

	fromArray: function ( array, offset ) {

		if ( offset === undefined ) offset = 0;

		this.r = array[ offset ];
		this.g = array[ offset + 1 ];
		this.b = array[ offset + 2 ];

		return this;

	},

	toArray: function ( array, offset ) {

		if ( array === undefined ) array = [];
		if ( offset === undefined ) offset = 0;

		array[ offset ] = this.r;
		array[ offset + 1 ] = this.g;
		array[ offset + 2 ] = this.b;

		return array;

	}

};

THREE.ColorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF,
'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2,
'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50,
'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B,
'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B,
'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F,
'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3,
'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222,
'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700,
'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4,
'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00,
'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3,
'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA,
'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32,
'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3,
'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC,
'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD,
'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6,
'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9,
'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F,
'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE,
'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA,
'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0,
'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 };

// File:src/math/Quaternion.js

/**
 * @author mikael emtinger / http://gomo.se/
 * @author alteredq / http://alteredqualia.com/
 * @author WestLangley / http://github.com/WestLangley
 * @author bhouston / http://clara.io
 */

THREE.Quaternion = function ( x, y, z, w ) {

	this._x = x || 0;
	this._y = y || 0;
	this._z = z || 0;
	this._w = ( w !== undefined ) ? w : 1;

};

THREE.Quaternion.prototype = {

	constructor: THREE.Quaternion,

	get x () {

		return this._x;

	},

	set x ( value ) {

		this._x = value;
		this.onChangeCallback();

	},

	get y () {

		return this._y;

	},

	set y ( value ) {

		this._y = value;
		this.onChangeCallback();

	},

	get z () {

		return this._z;

	},

	set z ( value ) {

		this._z = value;
		this.onChangeCallback();

	},

	get w () {

		return this._w;

	},

	set w ( value ) {

		this._w = value;
		this.onChangeCallback();

	},

	set: function ( x, y, z, w ) {

		this._x = x;
		this._y = y;
		this._z = z;
		this._w = w;

		this.onChangeCallback();

		return this;

	},

	clone: function () {

		return new this.constructor( this._x, this._y, this._z, this._w );

	},

	copy: function ( quaternion ) {

		this._x = quaternion.x;
		this._y = quaternion.y;
		this._z = quaternion.z;
		this._w = quaternion.w;

		this.onChangeCallback();

		return this;

	},

	setFromEuler: function ( euler, update ) {

		if ( euler instanceof THREE.Euler === false ) {

			throw new Error( 'THREE.Quaternion: .setFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );

		}

		// http://www.mathworks.com/matlabcentral/fileexchange/
		// 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
		//	content/SpinCalc.m

		var c1 = Math.cos( euler._x / 2 );
		var c2 = Math.cos( euler._y / 2 );
		var c3 = Math.cos( euler._z / 2 );
		var s1 = Math.sin( euler._x / 2 );
		var s2 = Math.sin( euler._y / 2 );
		var s3 = Math.sin( euler._z / 2 );

		var order = euler.order;

		if ( order === 'XYZ' ) {

			this._x = s1 * c2 * c3 + c1 * s2 * s3;
			this._y = c1 * s2 * c3 - s1 * c2 * s3;
			this._z = c1 * c2 * s3 + s1 * s2 * c3;
			this._w = c1 * c2 * c3 - s1 * s2 * s3;

		} else if ( order === 'YXZ' ) {

			this._x = s1 * c2 * c3 + c1 * s2 * s3;
			this._y = c1 * s2 * c3 - s1 * c2 * s3;
			this._z = c1 * c2 * s3 - s1 * s2 * c3;
			this._w = c1 * c2 * c3 + s1 * s2 * s3;

		} else if ( order === 'ZXY' ) {

			this._x = s1 * c2 * c3 - c1 * s2 * s3;
			this._y = c1 * s2 * c3 + s1 * c2 * s3;
			this._z = c1 * c2 * s3 + s1 * s2 * c3;
			this._w = c1 * c2 * c3 - s1 * s2 * s3;

		} else if ( order === 'ZYX' ) {

			this._x = s1 * c2 * c3 - c1 * s2 * s3;
			this._y = c1 * s2 * c3 + s1 * c2 * s3;
			this._z = c1 * c2 * s3 - s1 * s2 * c3;
			this._w = c1 * c2 * c3 + s1 * s2 * s3;

		} else if ( order === 'YZX' ) {

			this._x = s1 * c2 * c3 + c1 * s2 * s3;
			this._y = c1 * s2 * c3 + s1 * c2 * s3;
			this._z = c1 * c2 * s3 - s1 * s2 * c3;
			this._w = c1 * c2 * c3 - s1 * s2 * s3;

		} else if ( order === 'XZY' ) {

			this._x = s1 * c2 * c3 - c1 * s2 * s3;
			this._y = c1 * s2 * c3 - s1 * c2 * s3;
			this._z = c1 * c2 * s3 + s1 * s2 * c3;
			this._w = c1 * c2 * c3 + s1 * s2 * s3;

		}

		if ( update !== false ) this.onChangeCallback();

		return this;

	},

	setFromAxisAngle: function ( axis, angle ) {

		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm

		// assumes axis is normalized

		var halfAngle = angle / 2, s = Math.sin( halfAngle );

		this._x = axis.x * s;
		this._y = axis.y * s;
		this._z = axis.z * s;
		this._w = Math.cos( halfAngle );

		this.onChangeCallback();

		return this;

	},

	setFromRotationMatrix: function ( m ) {

		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm

		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

		var te = m.elements,

			m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
			m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
			m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],

			trace = m11 + m22 + m33,
			s;

		if ( trace > 0 ) {

			s = 0.5 / Math.sqrt( trace + 1.0 );

			this._w = 0.25 / s;
			this._x = ( m32 - m23 ) * s;
			this._y = ( m13 - m31 ) * s;
			this._z = ( m21 - m12 ) * s;

		} else if ( m11 > m22 && m11 > m33 ) {

			s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );

			this._w = ( m32 - m23 ) / s;
			this._x = 0.25 * s;
			this._y = ( m12 + m21 ) / s;
			this._z = ( m13 + m31 ) / s;

		} else if ( m22 > m33 ) {

			s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );

			this._w = ( m13 - m31 ) / s;
			this._x = ( m12 + m21 ) / s;
			this._y = 0.25 * s;
			this._z = ( m23 + m32 ) / s;

		} else {

			s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );

			this._w = ( m21 - m12 ) / s;
			this._x = ( m13 + m31 ) / s;
			this._y = ( m23 + m32 ) / s;
			this._z = 0.25 * s;

		}

		this.onChangeCallback();

		return this;

	},

	setFromUnitVectors: function () {

		// http://lolengine.net/blog/2014/02/24/quaternion-from-two-vectors-final

		// assumes direction vectors vFrom and vTo are normalized

		var v1, r;

		var EPS = 0.000001;

		return function ( vFrom, vTo ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();

			r = vFrom.dot( vTo ) + 1;

			if ( r < EPS ) {

				r = 0;

				if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {

					v1.set( - vFrom.y, vFrom.x, 0 );

				} else {

					v1.set( 0, - vFrom.z, vFrom.y );

				}

			} else {

				v1.crossVectors( vFrom, vTo );

			}

			this._x = v1.x;
			this._y = v1.y;
			this._z = v1.z;
			this._w = r;

			this.normalize();

			return this;

		};

	}(),

	inverse: function () {

		this.conjugate().normalize();

		return this;

	},

	conjugate: function () {

		this._x *= - 1;
		this._y *= - 1;
		this._z *= - 1;

		this.onChangeCallback();

		return this;

	},

	dot: function ( v ) {

		return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;

	},

	lengthSq: function () {

		return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;

	},

	length: function () {

		return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );

	},

	normalize: function () {

		var l = this.length();

		if ( l === 0 ) {

			this._x = 0;
			this._y = 0;
			this._z = 0;
			this._w = 1;

		} else {

			l = 1 / l;

			this._x = this._x * l;
			this._y = this._y * l;
			this._z = this._z * l;
			this._w = this._w * l;

		}

		this.onChangeCallback();

		return this;

	},

	multiply: function ( q, p ) {

		if ( p !== undefined ) {

			console.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );
			return this.multiplyQuaternions( q, p );

		}

		return this.multiplyQuaternions( this, q );

	},

	multiplyQuaternions: function ( a, b ) {

		// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm

		var qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;
		var qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;

		this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
		this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
		this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
		this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;

		this.onChangeCallback();

		return this;

	},

	slerp: function ( qb, t ) {

		if ( t === 0 ) return this;
		if ( t === 1 ) return this.copy( qb );

		var x = this._x, y = this._y, z = this._z, w = this._w;

		// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/

		var cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;

		if ( cosHalfTheta < 0 ) {

			this._w = - qb._w;
			this._x = - qb._x;
			this._y = - qb._y;
			this._z = - qb._z;

			cosHalfTheta = - cosHalfTheta;

		} else {

			this.copy( qb );

		}

		if ( cosHalfTheta >= 1.0 ) {

			this._w = w;
			this._x = x;
			this._y = y;
			this._z = z;

			return this;

		}

		var sinHalfTheta = Math.sqrt( 1.0 - cosHalfTheta * cosHalfTheta );

		if ( Math.abs( sinHalfTheta ) < 0.001 ) {

			this._w = 0.5 * ( w + this._w );
			this._x = 0.5 * ( x + this._x );
			this._y = 0.5 * ( y + this._y );
			this._z = 0.5 * ( z + this._z );

			return this;

		}

		var halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta );
		var ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,
		ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;

		this._w = ( w * ratioA + this._w * ratioB );
		this._x = ( x * ratioA + this._x * ratioB );
		this._y = ( y * ratioA + this._y * ratioB );
		this._z = ( z * ratioA + this._z * ratioB );

		this.onChangeCallback();

		return this;

	},

	equals: function ( quaternion ) {

		return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );

	},

	fromArray: function ( array, offset ) {

		if ( offset === undefined ) offset = 0;

		this._x = array[ offset ];
		this._y = array[ offset + 1 ];
		this._z = array[ offset + 2 ];
		this._w = array[ offset + 3 ];

		this.onChangeCallback();

		return this;

	},

	toArray: function ( array, offset ) {

		if ( array === undefined ) array = [];
		if ( offset === undefined ) offset = 0;

		array[ offset ] = this._x;
		array[ offset + 1 ] = this._y;
		array[ offset + 2 ] = this._z;
		array[ offset + 3 ] = this._w;

		return array;

	},

	onChange: function ( callback ) {

		this.onChangeCallback = callback;

		return this;

	},

	onChangeCallback: function () {}

};

Object.assign( THREE.Quaternion, {

	slerp: function( qa, qb, qm, t ) {

		return qm.copy( qa ).slerp( qb, t );

	},

	slerpFlat: function(
			dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) {

		// fuzz-free, array-based Quaternion SLERP operation

		var x0 = src0[ srcOffset0 + 0 ],
			y0 = src0[ srcOffset0 + 1 ],
			z0 = src0[ srcOffset0 + 2 ],
			w0 = src0[ srcOffset0 + 3 ],

			x1 = src1[ srcOffset1 + 0 ],
			y1 = src1[ srcOffset1 + 1 ],
			z1 = src1[ srcOffset1 + 2 ],
			w1 = src1[ srcOffset1 + 3 ];

		if ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) {

			var s = 1 - t,

				cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,

				dir = ( cos >= 0 ? 1 : - 1 ),
				sqrSin = 1 - cos * cos;

			// Skip the Slerp for tiny steps to avoid numeric problems:
			if ( sqrSin > Number.EPSILON ) {

				var sin = Math.sqrt( sqrSin ),
					len = Math.atan2( sin, cos * dir );

				s = Math.sin( s * len ) / sin;
				t = Math.sin( t * len ) / sin;

			}

			var tDir = t * dir;

			x0 = x0 * s + x1 * tDir;
			y0 = y0 * s + y1 * tDir;
			z0 = z0 * s + z1 * tDir;
			w0 = w0 * s + w1 * tDir;

			// Normalize in case we just did a lerp:
			if ( s === 1 - t ) {

				var f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 );

				x0 *= f;
				y0 *= f;
				z0 *= f;
				w0 *= f;

			}

		}

		dst[ dstOffset ] = x0;
		dst[ dstOffset + 1 ] = y0;
		dst[ dstOffset + 2 ] = z0;
		dst[ dstOffset + 3 ] = w0;

	}

} );

// File:src/math/Vector2.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author philogb / http://blog.thejit.org/
 * @author egraether / http://egraether.com/
 * @author zz85 / http://www.lab4games.net/zz85/blog
 */

THREE.Vector2 = function ( x, y ) {

	this.x = x || 0;
	this.y = y || 0;

};

THREE.Vector2.prototype = {

	constructor: THREE.Vector2,

	get width() {

		return this.x;

	},

	set width( value ) {

		this.x = value;

	},

	get height() {

		return this.y;

	},

	set height( value ) {

		this.y = value;

	},

	//

	set: function ( x, y ) {

		this.x = x;
		this.y = y;

		return this;

	},

	setScalar: function ( scalar ) {

		this.x = scalar;
		this.y = scalar;

		return this;

	},

	setX: function ( x ) {

		this.x = x;

		return this;

	},

	setY: function ( y ) {

		this.y = y;

		return this;

	},

	setComponent: function ( index, value ) {

		switch ( index ) {

			case 0: this.x = value; break;
			case 1: this.y = value; break;
			default: throw new Error( 'index is out of range: ' + index );

		}

	},

	getComponent: function ( index ) {

		switch ( index ) {

			case 0: return this.x;
			case 1: return this.y;
			default: throw new Error( 'index is out of range: ' + index );

		}

	},

	clone: function () {

		return new this.constructor( this.x, this.y );

	},

	copy: function ( v ) {

		this.x = v.x;
		this.y = v.y;

		return this;

	},

	add: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
			return this.addVectors( v, w );

		}

		this.x += v.x;
		this.y += v.y;

		return this;

	},

	addScalar: function ( s ) {

		this.x += s;
		this.y += s;

		return this;

	},

	addVectors: function ( a, b ) {

		this.x = a.x + b.x;
		this.y = a.y + b.y;

		return this;

	},

	addScaledVector: function ( v, s ) {

		this.x += v.x * s;
		this.y += v.y * s;

		return this;

	},

	sub: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
			return this.subVectors( v, w );

		}

		this.x -= v.x;
		this.y -= v.y;

		return this;

	},

	subScalar: function ( s ) {

		this.x -= s;
		this.y -= s;

		return this;

	},

	subVectors: function ( a, b ) {

		this.x = a.x - b.x;
		this.y = a.y - b.y;

		return this;

	},

	multiply: function ( v ) {

		this.x *= v.x;
		this.y *= v.y;

		return this;

	},

	multiplyScalar: function ( scalar ) {

		if ( isFinite( scalar ) ) {

			this.x *= scalar;
			this.y *= scalar;

		} else {

			this.x = 0;
			this.y = 0;

		}

		return this;

	},

	divide: function ( v ) {

		this.x /= v.x;
		this.y /= v.y;

		return this;

	},

	divideScalar: function ( scalar ) {

		return this.multiplyScalar( 1 / scalar );

	},

	min: function ( v ) {

		this.x = Math.min( this.x, v.x );
		this.y = Math.min( this.y, v.y );

		return this;

	},

	max: function ( v ) {

		this.x = Math.max( this.x, v.x );
		this.y = Math.max( this.y, v.y );

		return this;

	},

	clamp: function ( min, max ) {

		// This function assumes min < max, if this assumption isn't true it will not operate correctly

		this.x = Math.max( min.x, Math.min( max.x, this.x ) );
		this.y = Math.max( min.y, Math.min( max.y, this.y ) );

		return this;

	},

	clampScalar: function () {

		var min, max;

		return function clampScalar( minVal, maxVal ) {

			if ( min === undefined ) {

				min = new THREE.Vector2();
				max = new THREE.Vector2();

			}

			min.set( minVal, minVal );
			max.set( maxVal, maxVal );

			return this.clamp( min, max );

		};

	}(),

	clampLength: function ( min, max ) {

		var length = this.length();

		this.multiplyScalar( Math.max( min, Math.min( max, length ) ) / length );

		return this;

	},

	floor: function () {

		this.x = Math.floor( this.x );
		this.y = Math.floor( this.y );

		return this;

	},

	ceil: function () {

		this.x = Math.ceil( this.x );
		this.y = Math.ceil( this.y );

		return this;

	},

	round: function () {

		this.x = Math.round( this.x );
		this.y = Math.round( this.y );

		return this;

	},

	roundToZero: function () {

		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );

		return this;

	},

	negate: function () {

		this.x = - this.x;
		this.y = - this.y;

		return this;

	},

	dot: function ( v ) {

		return this.x * v.x + this.y * v.y;

	},

	lengthSq: function () {

		return this.x * this.x + this.y * this.y;

	},

	length: function () {

		return Math.sqrt( this.x * this.x + this.y * this.y );

	},

	lengthManhattan: function() {

		return Math.abs( this.x ) + Math.abs( this.y );

	},

	normalize: function () {

		return this.divideScalar( this.length() );

	},

	distanceTo: function ( v ) {

		return Math.sqrt( this.distanceToSquared( v ) );

	},

	distanceToSquared: function ( v ) {

		var dx = this.x - v.x, dy = this.y - v.y;
		return dx * dx + dy * dy;

	},

	setLength: function ( length ) {

		return this.multiplyScalar( length / this.length() );

	},

	lerp: function ( v, alpha ) {

		this.x += ( v.x - this.x ) * alpha;
		this.y += ( v.y - this.y ) * alpha;

		return this;

	},

	lerpVectors: function ( v1, v2, alpha ) {

		this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );

		return this;

	},

	equals: function ( v ) {

		return ( ( v.x === this.x ) && ( v.y === this.y ) );

	},

	fromArray: function ( array, offset ) {

		if ( offset === undefined ) offset = 0;

		this.x = array[ offset ];
		this.y = array[ offset + 1 ];

		return this;

	},

	toArray: function ( array, offset ) {

		if ( array === undefined ) array = [];
		if ( offset === undefined ) offset = 0;

		array[ offset ] = this.x;
		array[ offset + 1 ] = this.y;

		return array;

	},

	fromAttribute: function ( attribute, index, offset ) {

		if ( offset === undefined ) offset = 0;

		index = index * attribute.itemSize + offset;

		this.x = attribute.array[ index ];
		this.y = attribute.array[ index + 1 ];

		return this;

	},

	rotateAround: function ( center, angle ) {

		var c = Math.cos( angle ), s = Math.sin( angle );

		var x = this.x - center.x;
		var y = this.y - center.y;

		this.x = x * c - y * s + center.x;
		this.y = x * s + y * c + center.y;

		return this;

	}

};

// File:src/math/Vector3.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author *kile / http://kile.stravaganza.org/
 * @author philogb / http://blog.thejit.org/
 * @author mikael emtinger / http://gomo.se/
 * @author egraether / http://egraether.com/
 * @author WestLangley / http://github.com/WestLangley
 */

THREE.Vector3 = function ( x, y, z ) {

	this.x = x || 0;
	this.y = y || 0;
	this.z = z || 0;

};

THREE.Vector3.prototype = {

	constructor: THREE.Vector3,

	set: function ( x, y, z ) {

		this.x = x;
		this.y = y;
		this.z = z;

		return this;

	},

	setScalar: function ( scalar ) {

		this.x = scalar;
		this.y = scalar;
		this.z = scalar;

		return this;

	},

	setX: function ( x ) {

		this.x = x;

		return this;

	},

	setY: function ( y ) {

		this.y = y;

		return this;

	},

	setZ: function ( z ) {

		this.z = z;

		return this;

	},

	setComponent: function ( index, value ) {

		switch ( index ) {

			case 0: this.x = value; break;
			case 1: this.y = value; break;
			case 2: this.z = value; break;
			default: throw new Error( 'index is out of range: ' + index );

		}

	},

	getComponent: function ( index ) {

		switch ( index ) {

			case 0: return this.x;
			case 1: return this.y;
			case 2: return this.z;
			default: throw new Error( 'index is out of range: ' + index );

		}

	},

	clone: function () {

		return new this.constructor( this.x, this.y, this.z );

	},

	copy: function ( v ) {

		this.x = v.x;
		this.y = v.y;
		this.z = v.z;

		return this;

	},

	add: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
			return this.addVectors( v, w );

		}

		this.x += v.x;
		this.y += v.y;
		this.z += v.z;

		return this;

	},

	addScalar: function ( s ) {

		this.x += s;
		this.y += s;
		this.z += s;

		return this;

	},

	addVectors: function ( a, b ) {

		this.x = a.x + b.x;
		this.y = a.y + b.y;
		this.z = a.z + b.z;

		return this;

	},

	addScaledVector: function ( v, s ) {

		this.x += v.x * s;
		this.y += v.y * s;
		this.z += v.z * s;

		return this;

	},

	sub: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
			return this.subVectors( v, w );

		}

		this.x -= v.x;
		this.y -= v.y;
		this.z -= v.z;

		return this;

	},

	subScalar: function ( s ) {

		this.x -= s;
		this.y -= s;
		this.z -= s;

		return this;

	},

	subVectors: function ( a, b ) {

		this.x = a.x - b.x;
		this.y = a.y - b.y;
		this.z = a.z - b.z;

		return this;

	},

	multiply: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' );
			return this.multiplyVectors( v, w );

		}

		this.x *= v.x;
		this.y *= v.y;
		this.z *= v.z;

		return this;

	},

	multiplyScalar: function ( scalar ) {

		if ( isFinite( scalar ) ) {

			this.x *= scalar;
			this.y *= scalar;
			this.z *= scalar;

		} else {

			this.x = 0;
			this.y = 0;
			this.z = 0;

		}

		return this;

	},

	multiplyVectors: function ( a, b ) {

		this.x = a.x * b.x;
		this.y = a.y * b.y;
		this.z = a.z * b.z;

		return this;

	},

	applyEuler: function () {

		var quaternion;

		return function applyEuler( euler ) {

			if ( euler instanceof THREE.Euler === false ) {

				console.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' );

			}

			if ( quaternion === undefined ) quaternion = new THREE.Quaternion();

			this.applyQuaternion( quaternion.setFromEuler( euler ) );

			return this;

		};

	}(),

	applyAxisAngle: function () {

		var quaternion;

		return function applyAxisAngle( axis, angle ) {

			if ( quaternion === undefined ) quaternion = new THREE.Quaternion();

			this.applyQuaternion( quaternion.setFromAxisAngle( axis, angle ) );

			return this;

		};

	}(),

	applyMatrix3: function ( m ) {

		var x = this.x;
		var y = this.y;
		var z = this.z;

		var e = m.elements;

		this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;
		this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;
		this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;

		return this;

	},

	applyMatrix4: function ( m ) {

		// input: THREE.Matrix4 affine matrix

		var x = this.x, y = this.y, z = this.z;

		var e = m.elements;

		this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ]  * z + e[ 12 ];
		this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ]  * z + e[ 13 ];
		this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ];

		return this;

	},

	applyProjection: function ( m ) {

		// input: THREE.Matrix4 projection matrix

		var x = this.x, y = this.y, z = this.z;

		var e = m.elements;
		var d = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] ); // perspective divide

		this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ]  * z + e[ 12 ] ) * d;
		this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ]  * z + e[ 13 ] ) * d;
		this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * d;

		return this;

	},

	applyQuaternion: function ( q ) {

		var x = this.x;
		var y = this.y;
		var z = this.z;

		var qx = q.x;
		var qy = q.y;
		var qz = q.z;
		var qw = q.w;

		// calculate quat * vector

		var ix =  qw * x + qy * z - qz * y;
		var iy =  qw * y + qz * x - qx * z;
		var iz =  qw * z + qx * y - qy * x;
		var iw = - qx * x - qy * y - qz * z;

		// calculate result * inverse quat

		this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;
		this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;
		this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;

		return this;

	},

	project: function () {

		var matrix;

		return function project( camera ) {

			if ( matrix === undefined ) matrix = new THREE.Matrix4();

			matrix.multiplyMatrices( camera.projectionMatrix, matrix.getInverse( camera.matrixWorld ) );
			return this.applyProjection( matrix );

		};

	}(),

	unproject: function () {

		var matrix;

		return function unproject( camera ) {

			if ( matrix === undefined ) matrix = new THREE.Matrix4();

			matrix.multiplyMatrices( camera.matrixWorld, matrix.getInverse( camera.projectionMatrix ) );
			return this.applyProjection( matrix );

		};

	}(),

	transformDirection: function ( m ) {

		// input: THREE.Matrix4 affine matrix
		// vector interpreted as a direction

		var x = this.x, y = this.y, z = this.z;

		var e = m.elements;

		this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ]  * z;
		this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ]  * z;
		this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;

		this.normalize();

		return this;

	},

	divide: function ( v ) {

		this.x /= v.x;
		this.y /= v.y;
		this.z /= v.z;

		return this;

	},

	divideScalar: function ( scalar ) {

		return this.multiplyScalar( 1 / scalar );

	},

	min: function ( v ) {

		this.x = Math.min( this.x, v.x );
		this.y = Math.min( this.y, v.y );
		this.z = Math.min( this.z, v.z );

		return this;

	},

	max: function ( v ) {

		this.x = Math.max( this.x, v.x );
		this.y = Math.max( this.y, v.y );
		this.z = Math.max( this.z, v.z );

		return this;

	},

	clamp: function ( min, max ) {

		// This function assumes min < max, if this assumption isn't true it will not operate correctly

		this.x = Math.max( min.x, Math.min( max.x, this.x ) );
		this.y = Math.max( min.y, Math.min( max.y, this.y ) );
		this.z = Math.max( min.z, Math.min( max.z, this.z ) );

		return this;

	},

	clampScalar: function () {

		var min, max;

		return function clampScalar( minVal, maxVal ) {

			if ( min === undefined ) {

				min = new THREE.Vector3();
				max = new THREE.Vector3();

			}

			min.set( minVal, minVal, minVal );
			max.set( maxVal, maxVal, maxVal );

			return this.clamp( min, max );

		};

	}(),

	clampLength: function ( min, max ) {

		var length = this.length();

		this.multiplyScalar( Math.max( min, Math.min( max, length ) ) / length );

		return this;

	},

	floor: function () {

		this.x = Math.floor( this.x );
		this.y = Math.floor( this.y );
		this.z = Math.floor( this.z );

		return this;

	},

	ceil: function () {

		this.x = Math.ceil( this.x );
		this.y = Math.ceil( this.y );
		this.z = Math.ceil( this.z );

		return this;

	},

	round: function () {

		this.x = Math.round( this.x );
		this.y = Math.round( this.y );
		this.z = Math.round( this.z );

		return this;

	},

	roundToZero: function () {

		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
		this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );

		return this;

	},

	negate: function () {

		this.x = - this.x;
		this.y = - this.y;
		this.z = - this.z;

		return this;

	},

	dot: function ( v ) {

		return this.x * v.x + this.y * v.y + this.z * v.z;

	},

	lengthSq: function () {

		return this.x * this.x + this.y * this.y + this.z * this.z;

	},

	length: function () {

		return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );

	},

	lengthManhattan: function () {

		return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );

	},

	normalize: function () {

		return this.divideScalar( this.length() );

	},

	setLength: function ( length ) {

		return this.multiplyScalar( length / this.length() );

	},

	lerp: function ( v, alpha ) {

		this.x += ( v.x - this.x ) * alpha;
		this.y += ( v.y - this.y ) * alpha;
		this.z += ( v.z - this.z ) * alpha;

		return this;

	},

	lerpVectors: function ( v1, v2, alpha ) {

		this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );

		return this;

	},

	cross: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' );
			return this.crossVectors( v, w );

		}

		var x = this.x, y = this.y, z = this.z;

		this.x = y * v.z - z * v.y;
		this.y = z * v.x - x * v.z;
		this.z = x * v.y - y * v.x;

		return this;

	},

	crossVectors: function ( a, b ) {

		var ax = a.x, ay = a.y, az = a.z;
		var bx = b.x, by = b.y, bz = b.z;

		this.x = ay * bz - az * by;
		this.y = az * bx - ax * bz;
		this.z = ax * by - ay * bx;

		return this;

	},

	projectOnVector: function () {

		var v1, dot;

		return function projectOnVector( vector ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();

			v1.copy( vector ).normalize();

			dot = this.dot( v1 );

			return this.copy( v1 ).multiplyScalar( dot );

		};

	}(),

	projectOnPlane: function () {

		var v1;

		return function projectOnPlane( planeNormal ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();

			v1.copy( this ).projectOnVector( planeNormal );

			return this.sub( v1 );

		}

	}(),

	reflect: function () {

		// reflect incident vector off plane orthogonal to normal
		// normal is assumed to have unit length

		var v1;

		return function reflect( normal ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();

			return this.sub( v1.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );

		}

	}(),

	angleTo: function ( v ) {

		var theta = this.dot( v ) / ( Math.sqrt( this.lengthSq() * v.lengthSq() ) );

		// clamp, to handle numerical problems

		return Math.acos( THREE.Math.clamp( theta, - 1, 1 ) );

	},

	distanceTo: function ( v ) {

		return Math.sqrt( this.distanceToSquared( v ) );

	},

	distanceToSquared: function ( v ) {

		var dx = this.x - v.x;
		var dy = this.y - v.y;
		var dz = this.z - v.z;

		return dx * dx + dy * dy + dz * dz;

	},

	setFromMatrixPosition: function ( m ) {

		this.x = m.elements[ 12 ];
		this.y = m.elements[ 13 ];
		this.z = m.elements[ 14 ];

		return this;

	},

	setFromMatrixScale: function ( m ) {

		var sx = this.set( m.elements[ 0 ], m.elements[ 1 ], m.elements[ 2 ] ).length();
		var sy = this.set( m.elements[ 4 ], m.elements[ 5 ], m.elements[ 6 ] ).length();
		var sz = this.set( m.elements[ 8 ], m.elements[ 9 ], m.elements[ 10 ] ).length();

		this.x = sx;
		this.y = sy;
		this.z = sz;

		return this;

	},

	setFromMatrixColumn: function ( index, matrix ) {

		var offset = index * 4;

		var me = matrix.elements;

		this.x = me[ offset ];
		this.y = me[ offset + 1 ];
		this.z = me[ offset + 2 ];

		return this;

	},

	equals: function ( v ) {

		return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );

	},

	fromArray: function ( array, offset ) {

		if ( offset === undefined ) offset = 0;

		this.x = array[ offset ];
		this.y = array[ offset + 1 ];
		this.z = array[ offset + 2 ];

		return this;

	},

	toArray: function ( array, offset ) {

		if ( array === undefined ) array = [];
		if ( offset === undefined ) offset = 0;

		array[ offset ] = this.x;
		array[ offset + 1 ] = this.y;
		array[ offset + 2 ] = this.z;

		return array;

	},

	fromAttribute: function ( attribute, index, offset ) {

		if ( offset === undefined ) offset = 0;

		index = index * attribute.itemSize + offset;

		this.x = attribute.array[ index ];
		this.y = attribute.array[ index + 1 ];
		this.z = attribute.array[ index + 2 ];

		return this;

	}

};

// File:src/math/Vector4.js

/**
 * @author supereggbert / http://www.paulbrunt.co.uk/
 * @author philogb / http://blog.thejit.org/
 * @author mikael emtinger / http://gomo.se/
 * @author egraether / http://egraether.com/
 * @author WestLangley / http://github.com/WestLangley
 */

THREE.Vector4 = function ( x, y, z, w ) {

	this.x = x || 0;
	this.y = y || 0;
	this.z = z || 0;
	this.w = ( w !== undefined ) ? w : 1;

};

THREE.Vector4.prototype = {

	constructor: THREE.Vector4,

	set: function ( x, y, z, w ) {

		this.x = x;
		this.y = y;
		this.z = z;
		this.w = w;

		return this;

	},

	setScalar: function ( scalar ) {

		this.x = scalar;
		this.y = scalar;
		this.z = scalar;
		this.w = scalar;

		return this;

	},

	setX: function ( x ) {

		this.x = x;

		return this;

	},

	setY: function ( y ) {

		this.y = y;

		return this;

	},

	setZ: function ( z ) {

		this.z = z;

		return this;

	},

	setW: function ( w ) {

		this.w = w;

		return this;

	},

	setComponent: function ( index, value ) {

		switch ( index ) {

			case 0: this.x = value; break;
			case 1: this.y = value; break;
			case 2: this.z = value; break;
			case 3: this.w = value; break;
			default: throw new Error( 'index is out of range: ' + index );

		}

	},

	getComponent: function ( index ) {

		switch ( index ) {

			case 0: return this.x;
			case 1: return this.y;
			case 2: return this.z;
			case 3: return this.w;
			default: throw new Error( 'index is out of range: ' + index );

		}

	},

	clone: function () {

		return new this.constructor( this.x, this.y, this.z, this.w );

	},

	copy: function ( v ) {

		this.x = v.x;
		this.y = v.y;
		this.z = v.z;
		this.w = ( v.w !== undefined ) ? v.w : 1;

		return this;

	},

	add: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
			return this.addVectors( v, w );

		}

		this.x += v.x;
		this.y += v.y;
		this.z += v.z;
		this.w += v.w;

		return this;

	},

	addScalar: function ( s ) {

		this.x += s;
		this.y += s;
		this.z += s;
		this.w += s;

		return this;

	},

	addVectors: function ( a, b ) {

		this.x = a.x + b.x;
		this.y = a.y + b.y;
		this.z = a.z + b.z;
		this.w = a.w + b.w;

		return this;

	},

	addScaledVector: function ( v, s ) {

		this.x += v.x * s;
		this.y += v.y * s;
		this.z += v.z * s;
		this.w += v.w * s;

		return this;

	},

	sub: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
			return this.subVectors( v, w );

		}

		this.x -= v.x;
		this.y -= v.y;
		this.z -= v.z;
		this.w -= v.w;

		return this;

	},

	subScalar: function ( s ) {

		this.x -= s;
		this.y -= s;
		this.z -= s;
		this.w -= s;

		return this;

	},

	subVectors: function ( a, b ) {

		this.x = a.x - b.x;
		this.y = a.y - b.y;
		this.z = a.z - b.z;
		this.w = a.w - b.w;

		return this;

	},

	multiplyScalar: function ( scalar ) {

		if ( isFinite( scalar ) ) {

			this.x *= scalar;
			this.y *= scalar;
			this.z *= scalar;
			this.w *= scalar;

		} else {

			this.x = 0;
			this.y = 0;
			this.z = 0;
			this.w = 0;

		}

		return this;

	},

	applyMatrix4: function ( m ) {

		var x = this.x;
		var y = this.y;
		var z = this.z;
		var w = this.w;

		var e = m.elements;

		this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w;
		this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w;
		this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w;
		this.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w;

		return this;

	},

	divideScalar: function ( scalar ) {

		return this.multiplyScalar( 1 / scalar );

	},

	setAxisAngleFromQuaternion: function ( q ) {

		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm

		// q is assumed to be normalized

		this.w = 2 * Math.acos( q.w );

		var s = Math.sqrt( 1 - q.w * q.w );

		if ( s < 0.0001 ) {

			 this.x = 1;
			 this.y = 0;
			 this.z = 0;

		} else {

			 this.x = q.x / s;
			 this.y = q.y / s;
			 this.z = q.z / s;

		}

		return this;

	},

	setAxisAngleFromRotationMatrix: function ( m ) {

		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm

		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

		var angle, x, y, z,		// variables for result
			epsilon = 0.01,		// margin to allow for rounding errors
			epsilon2 = 0.1,		// margin to distinguish between 0 and 180 degrees

			te = m.elements,

			m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
			m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
			m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];

		if ( ( Math.abs( m12 - m21 ) < epsilon )
		   && ( Math.abs( m13 - m31 ) < epsilon )
		   && ( Math.abs( m23 - m32 ) < epsilon ) ) {

			// singularity found
			// first check for identity matrix which must have +1 for all terms
			// in leading diagonal and zero in other terms

			if ( ( Math.abs( m12 + m21 ) < epsilon2 )
			   && ( Math.abs( m13 + m31 ) < epsilon2 )
			   && ( Math.abs( m23 + m32 ) < epsilon2 )
			   && ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) {

				// this singularity is identity matrix so angle = 0

				this.set( 1, 0, 0, 0 );

				return this; // zero angle, arbitrary axis

			}

			// otherwise this singularity is angle = 180

			angle = Math.PI;

			var xx = ( m11 + 1 ) / 2;
			var yy = ( m22 + 1 ) / 2;
			var zz = ( m33 + 1 ) / 2;
			var xy = ( m12 + m21 ) / 4;
			var xz = ( m13 + m31 ) / 4;
			var yz = ( m23 + m32 ) / 4;

			if ( ( xx > yy ) && ( xx > zz ) ) {

				// m11 is the largest diagonal term

				if ( xx < epsilon ) {

					x = 0;
					y = 0.707106781;
					z = 0.707106781;

				} else {

					x = Math.sqrt( xx );
					y = xy / x;
					z = xz / x;

				}

			} else if ( yy > zz ) {

				// m22 is the largest diagonal term

				if ( yy < epsilon ) {

					x = 0.707106781;
					y = 0;
					z = 0.707106781;

				} else {

					y = Math.sqrt( yy );
					x = xy / y;
					z = yz / y;

				}

			} else {

				// m33 is the largest diagonal term so base result on this

				if ( zz < epsilon ) {

					x = 0.707106781;
					y = 0.707106781;
					z = 0;

				} else {

					z = Math.sqrt( zz );
					x = xz / z;
					y = yz / z;

				}

			}

			this.set( x, y, z, angle );

			return this; // return 180 deg rotation

		}

		// as we have reached here there are no singularities so we can handle normally

		var s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 )
						  + ( m13 - m31 ) * ( m13 - m31 )
						  + ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize

		if ( Math.abs( s ) < 0.001 ) s = 1;

		// prevent divide by zero, should not happen if matrix is orthogonal and should be
		// caught by singularity test above, but I've left it in just in case

		this.x = ( m32 - m23 ) / s;
		this.y = ( m13 - m31 ) / s;
		this.z = ( m21 - m12 ) / s;
		this.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 );

		return this;

	},

	min: function ( v ) {

		this.x = Math.min( this.x, v.x );
		this.y = Math.min( this.y, v.y );
		this.z = Math.min( this.z, v.z );
		this.w = Math.min( this.w, v.w );

		return this;

	},

	max: function ( v ) {

		this.x = Math.max( this.x, v.x );
		this.y = Math.max( this.y, v.y );
		this.z = Math.max( this.z, v.z );
		this.w = Math.max( this.w, v.w );

		return this;

	},

	clamp: function ( min, max ) {

		// This function assumes min < max, if this assumption isn't true it will not operate correctly

		this.x = Math.max( min.x, Math.min( max.x, this.x ) );
		this.y = Math.max( min.y, Math.min( max.y, this.y ) );
		this.z = Math.max( min.z, Math.min( max.z, this.z ) );
		this.w = Math.max( min.w, Math.min( max.w, this.w ) );

		return this;

	},

	clampScalar: function () {

		var min, max;

		return function clampScalar( minVal, maxVal ) {

			if ( min === undefined ) {

				min = new THREE.Vector4();
				max = new THREE.Vector4();

			}

			min.set( minVal, minVal, minVal, minVal );
			max.set( maxVal, maxVal, maxVal, maxVal );

			return this.clamp( min, max );

		};

	}(),

	floor: function () {

		this.x = Math.floor( this.x );
		this.y = Math.floor( this.y );
		this.z = Math.floor( this.z );
		this.w = Math.floor( this.w );

		return this;

	},

	ceil: function () {

		this.x = Math.ceil( this.x );
		this.y = Math.ceil( this.y );
		this.z = Math.ceil( this.z );
		this.w = Math.ceil( this.w );

		return this;

	},

	round: function () {

		this.x = Math.round( this.x );
		this.y = Math.round( this.y );
		this.z = Math.round( this.z );
		this.w = Math.round( this.w );

		return this;

	},

	roundToZero: function () {

		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
		this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
		this.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w );

		return this;

	},

	negate: function () {

		this.x = - this.x;
		this.y = - this.y;
		this.z = - this.z;
		this.w = - this.w;

		return this;

	},

	dot: function ( v ) {

		return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;

	},

	lengthSq: function () {

		return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;

	},

	length: function () {

		return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );

	},

	lengthManhattan: function () {

		return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );

	},

	normalize: function () {

		return this.divideScalar( this.length() );

	},

	setLength: function ( length ) {

		return this.multiplyScalar( length / this.length() );

	},

	lerp: function ( v, alpha ) {

		this.x += ( v.x - this.x ) * alpha;
		this.y += ( v.y - this.y ) * alpha;
		this.z += ( v.z - this.z ) * alpha;
		this.w += ( v.w - this.w ) * alpha;

		return this;

	},

	lerpVectors: function ( v1, v2, alpha ) {

		this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );

		return this;

	},

	equals: function ( v ) {

		return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) );

	},

	fromArray: function ( array, offset ) {

		if ( offset === undefined ) offset = 0;

		this.x = array[ offset ];
		this.y = array[ offset + 1 ];
		this.z = array[ offset + 2 ];
		this.w = array[ offset + 3 ];

		return this;

	},

	toArray: function ( array, offset ) {

		if ( array === undefined ) array = [];
		if ( offset === undefined ) offset = 0;

		array[ offset ] = this.x;
		array[ offset + 1 ] = this.y;
		array[ offset + 2 ] = this.z;
		array[ offset + 3 ] = this.w;

		return array;

	},

	fromAttribute: function ( attribute, index, offset ) {

		if ( offset === undefined ) offset = 0;

		index = index * attribute.itemSize + offset;

		this.x = attribute.array[ index ];
		this.y = attribute.array[ index + 1 ];
		this.z = attribute.array[ index + 2 ];
		this.w = attribute.array[ index + 3 ];

		return this;

	}

};

// File:src/math/Euler.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author WestLangley / http://github.com/WestLangley
 * @author bhouston / http://clara.io
 */

THREE.Euler = function ( x, y, z, order ) {

	this._x = x || 0;
	this._y = y || 0;
	this._z = z || 0;
	this._order = order || THREE.Euler.DefaultOrder;

};

THREE.Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];

THREE.Euler.DefaultOrder = 'XYZ';

THREE.Euler.prototype = {

	constructor: THREE.Euler,

	get x () {

		return this._x;

	},

	set x ( value ) {

		this._x = value;
		this.onChangeCallback();

	},

	get y () {

		return this._y;

	},

	set y ( value ) {

		this._y = value;
		this.onChangeCallback();

	},

	get z () {

		return this._z;

	},

	set z ( value ) {

		this._z = value;
		this.onChangeCallback();

	},

	get order () {

		return this._order;

	},

	set order ( value ) {

		this._order = value;
		this.onChangeCallback();

	},

	set: function ( x, y, z, order ) {

		this._x = x;
		this._y = y;
		this._z = z;
		this._order = order || this._order;

		this.onChangeCallback();

		return this;

	},

	clone: function () {

		return new this.constructor( this._x, this._y, this._z, this._order );

	},

	copy: function ( euler ) {

		this._x = euler._x;
		this._y = euler._y;
		this._z = euler._z;
		this._order = euler._order;

		this.onChangeCallback();

		return this;

	},

	setFromRotationMatrix: function ( m, order, update ) {

		var clamp = THREE.Math.clamp;

		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

		var te = m.elements;
		var m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];
		var m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];
		var m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];

		order = order || this._order;

		if ( order === 'XYZ' ) {

			this._y = Math.asin( clamp( m13, - 1, 1 ) );

			if ( Math.abs( m13 ) < 0.99999 ) {

				this._x = Math.atan2( - m23, m33 );
				this._z = Math.atan2( - m12, m11 );

			} else {

				this._x = Math.atan2( m32, m22 );
				this._z = 0;

			}

		} else if ( order === 'YXZ' ) {

			this._x = Math.asin( - clamp( m23, - 1, 1 ) );

			if ( Math.abs( m23 ) < 0.99999 ) {

				this._y = Math.atan2( m13, m33 );
				this._z = Math.atan2( m21, m22 );

			} else {

				this._y = Math.atan2( - m31, m11 );
				this._z = 0;

			}

		} else if ( order === 'ZXY' ) {

			this._x = Math.asin( clamp( m32, - 1, 1 ) );

			if ( Math.abs( m32 ) < 0.99999 ) {

				this._y = Math.atan2( - m31, m33 );
				this._z = Math.atan2( - m12, m22 );

			} else {

				this._y = 0;
				this._z = Math.atan2( m21, m11 );

			}

		} else if ( order === 'ZYX' ) {

			this._y = Math.asin( - clamp( m31, - 1, 1 ) );

			if ( Math.abs( m31 ) < 0.99999 ) {

				this._x = Math.atan2( m32, m33 );
				this._z = Math.atan2( m21, m11 );

			} else {

				this._x = 0;
				this._z = Math.atan2( - m12, m22 );

			}

		} else if ( order === 'YZX' ) {

			this._z = Math.asin( clamp( m21, - 1, 1 ) );

			if ( Math.abs( m21 ) < 0.99999 ) {

				this._x = Math.atan2( - m23, m22 );
				this._y = Math.atan2( - m31, m11 );

			} else {

				this._x = 0;
				this._y = Math.atan2( m13, m33 );

			}

		} else if ( order === 'XZY' ) {

			this._z = Math.asin( - clamp( m12, - 1, 1 ) );

			if ( Math.abs( m12 ) < 0.99999 ) {

				this._x = Math.atan2( m32, m22 );
				this._y = Math.atan2( m13, m11 );

			} else {

				this._x = Math.atan2( - m23, m33 );
				this._y = 0;

			}

		} else {

			console.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order )

		}

		this._order = order;

		if ( update !== false ) this.onChangeCallback();

		return this;

	},

	setFromQuaternion: function () {

		var matrix;

		return function ( q, order, update ) {

			if ( matrix === undefined ) matrix = new THREE.Matrix4();
			matrix.makeRotationFromQuaternion( q );
			this.setFromRotationMatrix( matrix, order, update );

			return this;

		};

	}(),

	setFromVector3: function ( v, order ) {

		return this.set( v.x, v.y, v.z, order || this._order );

	},

	reorder: function () {

		// WARNING: this discards revolution information -bhouston

		var q = new THREE.Quaternion();

		return function ( newOrder ) {

			q.setFromEuler( this );
			this.setFromQuaternion( q, newOrder );

		};

	}(),

	equals: function ( euler ) {

		return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );

	},

	fromArray: function ( array ) {

		this._x = array[ 0 ];
		this._y = array[ 1 ];
		this._z = array[ 2 ];
		if ( array[ 3 ] !== undefined ) this._order = array[ 3 ];

		this.onChangeCallback();

		return this;

	},

	toArray: function ( array, offset ) {

		if ( array === undefined ) array = [];
		if ( offset === undefined ) offset = 0;

		array[ offset ] = this._x;
		array[ offset + 1 ] = this._y;
		array[ offset + 2 ] = this._z;
		array[ offset + 3 ] = this._order;

		return array;

	},

	toVector3: function ( optionalResult ) {

		if ( optionalResult ) {

			return optionalResult.set( this._x, this._y, this._z );

		} else {

			return new THREE.Vector3( this._x, this._y, this._z );

		}

	},

	onChange: function ( callback ) {

		this.onChangeCallback = callback;

		return this;

	},

	onChangeCallback: function () {}

};

// File:src/math/Line3.js

/**
 * @author bhouston / http://clara.io
 */

THREE.Line3 = function ( start, end ) {

	this.start = ( start !== undefined ) ? start : new THREE.Vector3();
	this.end = ( end !== undefined ) ? end : new THREE.Vector3();

};

THREE.Line3.prototype = {

	constructor: THREE.Line3,

	set: function ( start, end ) {

		this.start.copy( start );
		this.end.copy( end );

		return this;

	},

	clone: function () {

		return new this.constructor().copy( this );

	},

	copy: function ( line ) {

		this.start.copy( line.start );
		this.end.copy( line.end );

		return this;

	},

	center: function ( optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();
		return result.addVectors( this.start, this.end ).multiplyScalar( 0.5 );

	},

	delta: function ( optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();
		return result.subVectors( this.end, this.start );

	},

	distanceSq: function () {

		return this.start.distanceToSquared( this.end );

	},

	distance: function () {

		return this.start.distanceTo( this.end );

	},

	at: function ( t, optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();

		return this.delta( result ).multiplyScalar( t ).add( this.start );

	},

	closestPointToPointParameter: function () {

		var startP = new THREE.Vector3();
		var startEnd = new THREE.Vector3();

		return function ( point, clampToLine ) {

			startP.subVectors( point, this.start );
			startEnd.subVectors( this.end, this.start );

			var startEnd2 = startEnd.dot( startEnd );
			var startEnd_startP = startEnd.dot( startP );

			var t = startEnd_startP / startEnd2;

			if ( clampToLine ) {

				t = THREE.Math.clamp( t, 0, 1 );

			}

			return t;

		};

	}(),

	closestPointToPoint: function ( point, clampToLine, optionalTarget ) {

		var t = this.closestPointToPointParameter( point, clampToLine );

		var result = optionalTarget || new THREE.Vector3();

		return this.delta( result ).multiplyScalar( t ).add( this.start );

	},

	applyMatrix4: function ( matrix ) {

		this.start.applyMatrix4( matrix );
		this.end.applyMatrix4( matrix );

		return this;

	},

	equals: function ( line ) {

		return line.start.equals( this.start ) && line.end.equals( this.end );

	}

};

// File:src/math/Box2.js

/**
 * @author bhouston / http://clara.io
 */

THREE.Box2 = function ( min, max ) {

	this.min = ( min !== undefined ) ? min : new THREE.Vector2( Infinity, Infinity );
	this.max = ( max !== undefined ) ? max : new THREE.Vector2( - Infinity, - Infinity );

};

THREE.Box2.prototype = {

	constructor: THREE.Box2,

	set: function ( min, max ) {

		this.min.copy( min );
		this.max.copy( max );

		return this;

	},

	setFromPoints: function ( points ) {

		this.makeEmpty();

		for ( var i = 0, il = points.length; i < il; i ++ ) {

			this.expandByPoint( points[ i ] );

		}

		return this;

	},

	setFromCenterAndSize: function () {

		var v1 = new THREE.Vector2();

		return function ( center, size ) {

			var halfSize = v1.copy( size ).multiplyScalar( 0.5 );
			this.min.copy( center ).sub( halfSize );
			this.max.copy( center ).add( halfSize );

			return this;

		};

	}(),

	clone: function () {

		return new this.constructor().copy( this );

	},

	copy: function ( box ) {

		this.min.copy( box.min );
		this.max.copy( box.max );

		return this;

	},

	makeEmpty: function () {

		this.min.x = this.min.y = Infinity;
		this.max.x = this.max.y = - Infinity;

		return this;

	},

	isEmpty: function () {

		// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes

		return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y );

	},

	center: function ( optionalTarget ) {

		var result = optionalTarget || new THREE.Vector2();
		return result.addVectors( this.min, this.max ).multiplyScalar( 0.5 );

	},

	size: function ( optionalTarget ) {

		var result = optionalTarget || new THREE.Vector2();
		return result.subVectors( this.max, this.min );

	},

	expandByPoint: function ( point ) {

		this.min.min( point );
		this.max.max( point );

		return this;

	},

	expandByVector: function ( vector ) {

		this.min.sub( vector );
		this.max.add( vector );

		return this;

	},

	expandByScalar: function ( scalar ) {

		this.min.addScalar( - scalar );
		this.max.addScalar( scalar );

		return this;

	},

	containsPoint: function ( point ) {

		if ( point.x < this.min.x || point.x > this.max.x ||
		     point.y < this.min.y || point.y > this.max.y ) {

			return false;

		}

		return true;

	},

	containsBox: function ( box ) {

		if ( ( this.min.x <= box.min.x ) && ( box.max.x <= this.max.x ) &&
		     ( this.min.y <= box.min.y ) && ( box.max.y <= this.max.y ) ) {

			return true;

		}

		return false;

	},

	getParameter: function ( point, optionalTarget ) {

		// This can potentially have a divide by zero if the box
		// has a size dimension of 0.

		var result = optionalTarget || new THREE.Vector2();

		return result.set(
			( point.x - this.min.x ) / ( this.max.x - this.min.x ),
			( point.y - this.min.y ) / ( this.max.y - this.min.y )
		);

	},

	intersectsBox: function ( box ) {

		// using 6 splitting planes to rule out intersections.

		if ( box.max.x < this.min.x || box.min.x > this.max.x ||
		     box.max.y < this.min.y || box.min.y > this.max.y ) {

			return false;

		}

		return true;

	},

	clampPoint: function ( point, optionalTarget ) {

		var result = optionalTarget || new THREE.Vector2();
		return result.copy( point ).clamp( this.min, this.max );

	},

	distanceToPoint: function () {

		var v1 = new THREE.Vector2();

		return function ( point ) {

			var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
			return clampedPoint.sub( point ).length();

		};

	}(),

	intersect: function ( box ) {

		this.min.max( box.min );
		this.max.min( box.max );

		return this;

	},

	union: function ( box ) {

		this.min.min( box.min );
		this.max.max( box.max );

		return this;

	},

	translate: function ( offset ) {

		this.min.add( offset );
		this.max.add( offset );

		return this;

	},

	equals: function ( box ) {

		return box.min.equals( this.min ) && box.max.equals( this.max );

	}

};

// File:src/math/Box3.js

/**
 * @author bhouston / http://clara.io
 * @author WestLangley / http://github.com/WestLangley
 */

THREE.Box3 = function ( min, max ) {

	this.min = ( min !== undefined ) ? min : new THREE.Vector3( Infinity, Infinity, Infinity );
	this.max = ( max !== undefined ) ? max : new THREE.Vector3( - Infinity, - Infinity, - Infinity );

};

THREE.Box3.prototype = {

	constructor: THREE.Box3,

	set: function ( min, max ) {

		this.min.copy( min );
		this.max.copy( max );

		return this;

	},

	setFromPoints: function ( points ) {

		this.makeEmpty();

		for ( var i = 0, il = points.length; i < il; i ++ ) {

			this.expandByPoint( points[ i ] );

		}

		return this;

	},

	setFromCenterAndSize: function () {

		var v1 = new THREE.Vector3();

		return function ( center, size ) {

			var halfSize = v1.copy( size ).multiplyScalar( 0.5 );

			this.min.copy( center ).sub( halfSize );
			this.max.copy( center ).add( halfSize );

			return this;

		};

	}(),

	setFromObject: function () {

		// Computes the world-axis-aligned bounding box of an object (including its children),
		// accounting for both the object's, and children's, world transforms

		var box;

		return function ( object ) {

			if ( box === undefined ) box = new THREE.Box3();

			var scope = this;

			this.makeEmpty();

			object.updateMatrixWorld( true );

			object.traverse( function ( node ) {

				var geometry = node.geometry;

				if ( geometry !== undefined ) {

					if ( geometry.boundingBox === null ) {

						geometry.computeBoundingBox();

					}

					box.copy( geometry.boundingBox );
					box.applyMatrix4( node.matrixWorld );
					scope.union( box );

				}

			} );

			return this;

		};

	}(),

	clone: function () {

		return new this.constructor().copy( this );

	},

	copy: function ( box ) {

		this.min.copy( box.min );
		this.max.copy( box.max );

		return this;

	},

	makeEmpty: function () {

		this.min.x = this.min.y = this.min.z = Infinity;
		this.max.x = this.max.y = this.max.z = - Infinity;

		return this;

	},

	isEmpty: function () {

		// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes

		return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z );

	},

	center: function ( optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();
		return result.addVectors( this.min, this.max ).multiplyScalar( 0.5 );

	},

	size: function ( optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();
		return result.subVectors( this.max, this.min );

	},

	expandByPoint: function ( point ) {

		this.min.min( point );
		this.max.max( point );

		return this;

	},

	expandByVector: function ( vector ) {

		this.min.sub( vector );
		this.max.add( vector );

		return this;

	},

	expandByScalar: function ( scalar ) {

		this.min.addScalar( - scalar );
		this.max.addScalar( scalar );

		return this;

	},

	containsPoint: function ( point ) {

		if ( point.x < this.min.x || point.x > this.max.x ||
				 point.y < this.min.y || point.y > this.max.y ||
				 point.z < this.min.z || point.z > this.max.z ) {

			return false;

		}

		return true;

	},

	containsBox: function ( box ) {

		if ( ( this.min.x <= box.min.x ) && ( box.max.x <= this.max.x ) &&
			 ( this.min.y <= box.min.y ) && ( box.max.y <= this.max.y ) &&
			 ( this.min.z <= box.min.z ) && ( box.max.z <= this.max.z ) ) {

			return true;

		}

		return false;

	},

	getParameter: function ( point, optionalTarget ) {

		// This can potentially have a divide by zero if the box
		// has a size dimension of 0.

		var result = optionalTarget || new THREE.Vector3();

		return result.set(
			( point.x - this.min.x ) / ( this.max.x - this.min.x ),
			( point.y - this.min.y ) / ( this.max.y - this.min.y ),
			( point.z - this.min.z ) / ( this.max.z - this.min.z )
		);

	},

	intersectsBox: function ( box ) {

		// using 6 splitting planes to rule out intersections.

		if ( box.max.x < this.min.x || box.min.x > this.max.x ||
				 box.max.y < this.min.y || box.min.y > this.max.y ||
				 box.max.z < this.min.z || box.min.z > this.max.z ) {

			return false;

		}

		return true;

	},

	intersectsSphere: ( function () {

		var closestPoint;

		return function intersectsSphere( sphere ) {

			if ( closestPoint === undefined ) closestPoint = new THREE.Vector3();

			// Find the point on the AABB closest to the sphere center.
			this.clampPoint( sphere.center, closestPoint );

			// If that point is inside the sphere, the AABB and sphere intersect.
			return closestPoint.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius );

		};

	} )(),

	intersectsPlane: function ( plane ) {

		// We compute the minimum and maximum dot product values. If those values
		// are on the same side (back or front) of the plane, then there is no intersection.

		var min, max;

		if ( plane.normal.x > 0 ) {

			min = plane.normal.x * this.min.x;
			max = plane.normal.x * this.max.x;

		} else {

			min = plane.normal.x * this.max.x;
			max = plane.normal.x * this.min.x;

		}

		if ( plane.normal.y > 0 ) {

			min += plane.normal.y * this.min.y;
			max += plane.normal.y * this.max.y;

		} else {

			min += plane.normal.y * this.max.y;
			max += plane.normal.y * this.min.y;

		}

		if ( plane.normal.z > 0 ) {

			min += plane.normal.z * this.min.z;
			max += plane.normal.z * this.max.z;

		} else {

			min += plane.normal.z * this.max.z;
			max += plane.normal.z * this.min.z;

		}

		return ( min <= plane.constant && max >= plane.constant );

	},

	clampPoint: function ( point, optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();
		return result.copy( point ).clamp( this.min, this.max );

	},

	distanceToPoint: function () {

		var v1 = new THREE.Vector3();

		return function ( point ) {

			var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
			return clampedPoint.sub( point ).length();

		};

	}(),

	getBoundingSphere: function () {

		var v1 = new THREE.Vector3();

		return function ( optionalTarget ) {

			var result = optionalTarget || new THREE.Sphere();

			result.center = this.center();
			result.radius = this.size( v1 ).length() * 0.5;

			return result;

		};

	}(),

	intersect: function ( box ) {

		this.min.max( box.min );
		this.max.min( box.max );

		return this;

	},

	union: function ( box ) {

		this.min.min( box.min );
		this.max.max( box.max );

		return this;

	},

	applyMatrix4: function () {

		var points = [
			new THREE.Vector3(),
			new THREE.Vector3(),
			new THREE.Vector3(),
			new THREE.Vector3(),
			new THREE.Vector3(),
			new THREE.Vector3(),
			new THREE.Vector3(),
			new THREE.Vector3()
		];

		return function ( matrix ) {

			// NOTE: I am using a binary pattern to specify all 2^3 combinations below
			points[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000
			points[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001
			points[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010
			points[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011
			points[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100
			points[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101
			points[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110
			points[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix );	// 111

			this.makeEmpty();
			this.setFromPoints( points );

			return this;

		};

	}(),

	translate: function ( offset ) {

		this.min.add( offset );
		this.max.add( offset );

		return this;

	},

	equals: function ( box ) {

		return box.min.equals( this.min ) && box.max.equals( this.max );

	}

};

// File:src/math/Matrix3.js

/**
 * @author alteredq / http://alteredqualia.com/
 * @author WestLangley / http://github.com/WestLangley
 * @author bhouston / http://clara.io
 */

THREE.Matrix3 = function () {

	this.elements = new Float32Array( [

		1, 0, 0,
		0, 1, 0,
		0, 0, 1

	] );

	if ( arguments.length > 0 ) {

		console.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' );

	}

};

THREE.Matrix3.prototype = {

	constructor: THREE.Matrix3,

	set: function ( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) {

		var te = this.elements;

		te[ 0 ] = n11; te[ 3 ] = n12; te[ 6 ] = n13;
		te[ 1 ] = n21; te[ 4 ] = n22; te[ 7 ] = n23;
		te[ 2 ] = n31; te[ 5 ] = n32; te[ 8 ] = n33;

		return this;

	},

	identity: function () {

		this.set(

			1, 0, 0,
			0, 1, 0,
			0, 0, 1

		);

		return this;

	},

	clone: function () {

		return new this.constructor().fromArray( this.elements );

	},

	copy: function ( m ) {

		var me = m.elements;

		this.set(

			me[ 0 ], me[ 3 ], me[ 6 ],
			me[ 1 ], me[ 4 ], me[ 7 ],
			me[ 2 ], me[ 5 ], me[ 8 ]

		);

		return this;

	},

	applyToVector3Array: function () {

		var v1;

		return function ( array, offset, length ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();
			if ( offset === undefined ) offset = 0;
			if ( length === undefined ) length = array.length;

			for ( var i = 0, j = offset; i < length; i += 3, j += 3 ) {

				v1.fromArray( array, j );
				v1.applyMatrix3( this );
				v1.toArray( array, j );

			}

			return array;

		};

	}(),

	applyToBuffer: function () {

		var v1;

		return function applyToBuffer( buffer, offset, length ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();
			if ( offset === undefined ) offset = 0;
			if ( length === undefined ) length = buffer.length / buffer.itemSize;

			for ( var i = 0, j = offset; i < length; i ++, j ++ ) {

				v1.x = buffer.getX( j );
				v1.y = buffer.getY( j );
				v1.z = buffer.getZ( j );

				v1.applyMatrix3( this );

				buffer.setXYZ( v1.x, v1.y, v1.z );

			}

			return buffer;

		};

	}(),

	multiplyScalar: function ( s ) {

		var te = this.elements;

		te[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s;
		te[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s;
		te[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s;

		return this;

	},

	determinant: function () {

		var te = this.elements;

		var a = te[ 0 ], b = te[ 1 ], c = te[ 2 ],
			d = te[ 3 ], e = te[ 4 ], f = te[ 5 ],
			g = te[ 6 ], h = te[ 7 ], i = te[ 8 ];

		return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;

	},

	getInverse: function ( matrix, throwOnDegenerate ) {

		// input: THREE.Matrix4
		// ( based on http://code.google.com/p/webgl-mjs/ )

		var me = matrix.elements;
		var te = this.elements;

		te[ 0 ] =   me[ 10 ] * me[ 5 ] - me[ 6 ] * me[ 9 ];
		te[ 1 ] = - me[ 10 ] * me[ 1 ] + me[ 2 ] * me[ 9 ];
		te[ 2 ] =   me[ 6 ] * me[ 1 ] - me[ 2 ] * me[ 5 ];
		te[ 3 ] = - me[ 10 ] * me[ 4 ] + me[ 6 ] * me[ 8 ];
		te[ 4 ] =   me[ 10 ] * me[ 0 ] - me[ 2 ] * me[ 8 ];
		te[ 5 ] = - me[ 6 ] * me[ 0 ] + me[ 2 ] * me[ 4 ];
		te[ 6 ] =   me[ 9 ] * me[ 4 ] - me[ 5 ] * me[ 8 ];
		te[ 7 ] = - me[ 9 ] * me[ 0 ] + me[ 1 ] * me[ 8 ];
		te[ 8 ] =   me[ 5 ] * me[ 0 ] - me[ 1 ] * me[ 4 ];

		var det = me[ 0 ] * te[ 0 ] + me[ 1 ] * te[ 3 ] + me[ 2 ] * te[ 6 ];

		// no inverse

		if ( det === 0 ) {

			var msg = "THREE.Matrix3.getInverse(): can't invert matrix, determinant is 0";

			if ( throwOnDegenerate || false ) {

				throw new Error( msg );

			} else {

				console.warn( msg );

			}

			this.identity();

			return this;

		}

		this.multiplyScalar( 1.0 / det );

		return this;

	},

	transpose: function () {

		var tmp, m = this.elements;

		tmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp;
		tmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp;
		tmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp;

		return this;

	},

	flattenToArrayOffset: function ( array, offset ) {

		var te = this.elements;

		array[ offset ] = te[ 0 ];
		array[ offset + 1 ] = te[ 1 ];
		array[ offset + 2 ] = te[ 2 ];

		array[ offset + 3 ] = te[ 3 ];
		array[ offset + 4 ] = te[ 4 ];
		array[ offset + 5 ] = te[ 5 ];

		array[ offset + 6 ] = te[ 6 ];
		array[ offset + 7 ] = te[ 7 ];
		array[ offset + 8 ]  = te[ 8 ];

		return array;

	},

	getNormalMatrix: function ( m ) {

		// input: THREE.Matrix4

		this.getInverse( m ).transpose();

		return this;

	},

	transposeIntoArray: function ( r ) {

		var m = this.elements;

		r[ 0 ] = m[ 0 ];
		r[ 1 ] = m[ 3 ];
		r[ 2 ] = m[ 6 ];
		r[ 3 ] = m[ 1 ];
		r[ 4 ] = m[ 4 ];
		r[ 5 ] = m[ 7 ];
		r[ 6 ] = m[ 2 ];
		r[ 7 ] = m[ 5 ];
		r[ 8 ] = m[ 8 ];

		return this;

	},

	fromArray: function ( array ) {

		this.elements.set( array );

		return this;

	},

	toArray: function () {

		var te = this.elements;

		return [
			te[ 0 ], te[ 1 ], te[ 2 ],
			te[ 3 ], te[ 4 ], te[ 5 ],
			te[ 6 ], te[ 7 ], te[ 8 ]
		];

	}

};

// File:src/math/Matrix4.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author supereggbert / http://www.paulbrunt.co.uk/
 * @author philogb / http://blog.thejit.org/
 * @author jordi_ros / http://plattsoft.com
 * @author D1plo1d / http://github.com/D1plo1d
 * @author alteredq / http://alteredqualia.com/
 * @author mikael emtinger / http://gomo.se/
 * @author timknip / http://www.floorplanner.com/
 * @author bhouston / http://clara.io
 * @author WestLangley / http://github.com/WestLangley
 */

THREE.Matrix4 = function () {

	this.elements = new Float32Array( [

		1, 0, 0, 0,
		0, 1, 0, 0,
		0, 0, 1, 0,
		0, 0, 0, 1

	] );

	if ( arguments.length > 0 ) {

		console.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' );

	}

};

THREE.Matrix4.prototype = {

	constructor: THREE.Matrix4,

	set: function ( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {

		var te = this.elements;

		te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;
		te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;
		te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;
		te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;

		return this;

	},

	identity: function () {

		this.set(

			1, 0, 0, 0,
			0, 1, 0, 0,
			0, 0, 1, 0,
			0, 0, 0, 1

		);

		return this;

	},

	clone: function () {

		return new THREE.Matrix4().fromArray( this.elements );

	},

	copy: function ( m ) {

		this.elements.set( m.elements );

		return this;

	},

	copyPosition: function ( m ) {

		var te = this.elements;
		var me = m.elements;

		te[ 12 ] = me[ 12 ];
		te[ 13 ] = me[ 13 ];
		te[ 14 ] = me[ 14 ];

		return this;

	},

	extractBasis: function ( xAxis, yAxis, zAxis ) {

		var te = this.elements;

		xAxis.set( te[ 0 ], te[ 1 ], te[ 2 ] );
		yAxis.set( te[ 4 ], te[ 5 ], te[ 6 ] );
		zAxis.set( te[ 8 ], te[ 9 ], te[ 10 ] );

		return this;

	},

	makeBasis: function ( xAxis, yAxis, zAxis ) {

		this.set(
			xAxis.x, yAxis.x, zAxis.x, 0,
			xAxis.y, yAxis.y, zAxis.y, 0,
			xAxis.z, yAxis.z, zAxis.z, 0,
			0,       0,       0,       1
		);

		return this;

	},

	extractRotation: function () {

		var v1;

		return function ( m ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();

			var te = this.elements;
			var me = m.elements;

			var scaleX = 1 / v1.set( me[ 0 ], me[ 1 ], me[ 2 ] ).length();
			var scaleY = 1 / v1.set( me[ 4 ], me[ 5 ], me[ 6 ] ).length();
			var scaleZ = 1 / v1.set( me[ 8 ], me[ 9 ], me[ 10 ] ).length();

			te[ 0 ] = me[ 0 ] * scaleX;
			te[ 1 ] = me[ 1 ] * scaleX;
			te[ 2 ] = me[ 2 ] * scaleX;

			te[ 4 ] = me[ 4 ] * scaleY;
			te[ 5 ] = me[ 5 ] * scaleY;
			te[ 6 ] = me[ 6 ] * scaleY;

			te[ 8 ] = me[ 8 ] * scaleZ;
			te[ 9 ] = me[ 9 ] * scaleZ;
			te[ 10 ] = me[ 10 ] * scaleZ;

			return this;

		};

	}(),

	makeRotationFromEuler: function ( euler ) {

		if ( euler instanceof THREE.Euler === false ) {

			console.error( 'THREE.Matrix: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );

		}

		var te = this.elements;

		var x = euler.x, y = euler.y, z = euler.z;
		var a = Math.cos( x ), b = Math.sin( x );
		var c = Math.cos( y ), d = Math.sin( y );
		var e = Math.cos( z ), f = Math.sin( z );

		if ( euler.order === 'XYZ' ) {

			var ae = a * e, af = a * f, be = b * e, bf = b * f;

			te[ 0 ] = c * e;
			te[ 4 ] = - c * f;
			te[ 8 ] = d;

			te[ 1 ] = af + be * d;
			te[ 5 ] = ae - bf * d;
			te[ 9 ] = - b * c;

			te[ 2 ] = bf - ae * d;
			te[ 6 ] = be + af * d;
			te[ 10 ] = a * c;

		} else if ( euler.order === 'YXZ' ) {

			var ce = c * e, cf = c * f, de = d * e, df = d * f;

			te[ 0 ] = ce + df * b;
			te[ 4 ] = de * b - cf;
			te[ 8 ] = a * d;

			te[ 1 ] = a * f;
			te[ 5 ] = a * e;
			te[ 9 ] = - b;

			te[ 2 ] = cf * b - de;
			te[ 6 ] = df + ce * b;
			te[ 10 ] = a * c;

		} else if ( euler.order === 'ZXY' ) {

			var ce = c * e, cf = c * f, de = d * e, df = d * f;

			te[ 0 ] = ce - df * b;
			te[ 4 ] = - a * f;
			te[ 8 ] = de + cf * b;

			te[ 1 ] = cf + de * b;
			te[ 5 ] = a * e;
			te[ 9 ] = df - ce * b;

			te[ 2 ] = - a * d;
			te[ 6 ] = b;
			te[ 10 ] = a * c;

		} else if ( euler.order === 'ZYX' ) {

			var ae = a * e, af = a * f, be = b * e, bf = b * f;

			te[ 0 ] = c * e;
			te[ 4 ] = be * d - af;
			te[ 8 ] = ae * d + bf;

			te[ 1 ] = c * f;
			te[ 5 ] = bf * d + ae;
			te[ 9 ] = af * d - be;

			te[ 2 ] = - d;
			te[ 6 ] = b * c;
			te[ 10 ] = a * c;

		} else if ( euler.order === 'YZX' ) {

			var ac = a * c, ad = a * d, bc = b * c, bd = b * d;

			te[ 0 ] = c * e;
			te[ 4 ] = bd - ac * f;
			te[ 8 ] = bc * f + ad;

			te[ 1 ] = f;
			te[ 5 ] = a * e;
			te[ 9 ] = - b * e;

			te[ 2 ] = - d * e;
			te[ 6 ] = ad * f + bc;
			te[ 10 ] = ac - bd * f;

		} else if ( euler.order === 'XZY' ) {

			var ac = a * c, ad = a * d, bc = b * c, bd = b * d;

			te[ 0 ] = c * e;
			te[ 4 ] = - f;
			te[ 8 ] = d * e;

			te[ 1 ] = ac * f + bd;
			te[ 5 ] = a * e;
			te[ 9 ] = ad * f - bc;

			te[ 2 ] = bc * f - ad;
			te[ 6 ] = b * e;
			te[ 10 ] = bd * f + ac;

		}

		// last column
		te[ 3 ] = 0;
		te[ 7 ] = 0;
		te[ 11 ] = 0;

		// bottom row
		te[ 12 ] = 0;
		te[ 13 ] = 0;
		te[ 14 ] = 0;
		te[ 15 ] = 1;

		return this;

	},

	makeRotationFromQuaternion: function ( q ) {

		var te = this.elements;

		var x = q.x, y = q.y, z = q.z, w = q.w;
		var x2 = x + x, y2 = y + y, z2 = z + z;
		var xx = x * x2, xy = x * y2, xz = x * z2;
		var yy = y * y2, yz = y * z2, zz = z * z2;
		var wx = w * x2, wy = w * y2, wz = w * z2;

		te[ 0 ] = 1 - ( yy + zz );
		te[ 4 ] = xy - wz;
		te[ 8 ] = xz + wy;

		te[ 1 ] = xy + wz;
		te[ 5 ] = 1 - ( xx + zz );
		te[ 9 ] = yz - wx;

		te[ 2 ] = xz - wy;
		te[ 6 ] = yz + wx;
		te[ 10 ] = 1 - ( xx + yy );

		// last column
		te[ 3 ] = 0;
		te[ 7 ] = 0;
		te[ 11 ] = 0;

		// bottom row
		te[ 12 ] = 0;
		te[ 13 ] = 0;
		te[ 14 ] = 0;
		te[ 15 ] = 1;

		return this;

	},

	lookAt: function () {

		var x, y, z;

		return function ( eye, target, up ) {

			if ( x === undefined ) x = new THREE.Vector3();
			if ( y === undefined ) y = new THREE.Vector3();
			if ( z === undefined ) z = new THREE.Vector3();

			var te = this.elements;

			z.subVectors( eye, target ).normalize();

			if ( z.lengthSq() === 0 ) {

				z.z = 1;

			}

			x.crossVectors( up, z ).normalize();

			if ( x.lengthSq() === 0 ) {

				z.x += 0.0001;
				x.crossVectors( up, z ).normalize();

			}

			y.crossVectors( z, x );


			te[ 0 ] = x.x; te[ 4 ] = y.x; te[ 8 ] = z.x;
			te[ 1 ] = x.y; te[ 5 ] = y.y; te[ 9 ] = z.y;
			te[ 2 ] = x.z; te[ 6 ] = y.z; te[ 10 ] = z.z;

			return this;

		};

	}(),

	multiply: function ( m, n ) {

		if ( n !== undefined ) {

			console.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' );
			return this.multiplyMatrices( m, n );

		}

		return this.multiplyMatrices( this, m );

	},

	multiplyMatrices: function ( a, b ) {

		var ae = a.elements;
		var be = b.elements;
		var te = this.elements;

		var a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];
		var a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];
		var a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];
		var a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];

		var b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];
		var b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];
		var b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];
		var b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];

		te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
		te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
		te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
		te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;

		te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
		te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
		te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
		te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;

		te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
		te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
		te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
		te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;

		te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
		te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
		te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
		te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;

		return this;

	},

	multiplyToArray: function ( a, b, r ) {

		var te = this.elements;

		this.multiplyMatrices( a, b );

		r[ 0 ] = te[ 0 ]; r[ 1 ] = te[ 1 ]; r[ 2 ] = te[ 2 ]; r[ 3 ] = te[ 3 ];
		r[ 4 ] = te[ 4 ]; r[ 5 ] = te[ 5 ]; r[ 6 ] = te[ 6 ]; r[ 7 ] = te[ 7 ];
		r[ 8 ]  = te[ 8 ]; r[ 9 ]  = te[ 9 ]; r[ 10 ] = te[ 10 ]; r[ 11 ] = te[ 11 ];
		r[ 12 ] = te[ 12 ]; r[ 13 ] = te[ 13 ]; r[ 14 ] = te[ 14 ]; r[ 15 ] = te[ 15 ];

		return this;

	},

	multiplyScalar: function ( s ) {

		var te = this.elements;

		te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;
		te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;
		te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;
		te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;

		return this;

	},

	applyToVector3Array: function () {

		var v1;

		return function ( array, offset, length ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();
			if ( offset === undefined ) offset = 0;
			if ( length === undefined ) length = array.length;

			for ( var i = 0, j = offset; i < length; i += 3, j += 3 ) {

				v1.fromArray( array, j );
				v1.applyMatrix4( this );
				v1.toArray( array, j );

			}

			return array;

		};

	}(),

	applyToBuffer: function () {

		var v1;

		return function applyToBuffer( buffer, offset, length ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();
			if ( offset === undefined ) offset = 0;
			if ( length === undefined ) length = buffer.length / buffer.itemSize;

			for ( var i = 0, j = offset; i < length; i ++, j ++ ) {

				v1.x = buffer.getX( j );
				v1.y = buffer.getY( j );
				v1.z = buffer.getZ( j );

				v1.applyMatrix4( this );

				buffer.setXYZ( v1.x, v1.y, v1.z );

			}

			return buffer;

		};

	}(),

	determinant: function () {

		var te = this.elements;

		var n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];
		var n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];
		var n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];
		var n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];

		//TODO: make this more efficient
		//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )

		return (
			n41 * (
				+ n14 * n23 * n32
				 - n13 * n24 * n32
				 - n14 * n22 * n33
				 + n12 * n24 * n33
				 + n13 * n22 * n34
				 - n12 * n23 * n34
			) +
			n42 * (
				+ n11 * n23 * n34
				 - n11 * n24 * n33
				 + n14 * n21 * n33
				 - n13 * n21 * n34
				 + n13 * n24 * n31
				 - n14 * n23 * n31
			) +
			n43 * (
				+ n11 * n24 * n32
				 - n11 * n22 * n34
				 - n14 * n21 * n32
				 + n12 * n21 * n34
				 + n14 * n22 * n31
				 - n12 * n24 * n31
			) +
			n44 * (
				- n13 * n22 * n31
				 - n11 * n23 * n32
				 + n11 * n22 * n33
				 + n13 * n21 * n32
				 - n12 * n21 * n33
				 + n12 * n23 * n31
			)

		);

	},

	transpose: function () {

		var te = this.elements;
		var tmp;

		tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;
		tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;
		tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;

		tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;
		tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;
		tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;

		return this;

	},

	flattenToArrayOffset: function ( array, offset ) {

		var te = this.elements;

		array[ offset ] = te[ 0 ];
		array[ offset + 1 ] = te[ 1 ];
		array[ offset + 2 ] = te[ 2 ];
		array[ offset + 3 ] = te[ 3 ];

		array[ offset + 4 ] = te[ 4 ];
		array[ offset + 5 ] = te[ 5 ];
		array[ offset + 6 ] = te[ 6 ];
		array[ offset + 7 ] = te[ 7 ];

		array[ offset + 8 ]  = te[ 8 ];
		array[ offset + 9 ]  = te[ 9 ];
		array[ offset + 10 ] = te[ 10 ];
		array[ offset + 11 ] = te[ 11 ];

		array[ offset + 12 ] = te[ 12 ];
		array[ offset + 13 ] = te[ 13 ];
		array[ offset + 14 ] = te[ 14 ];
		array[ offset + 15 ] = te[ 15 ];

		return array;

	},

	getPosition: function () {

		var v1;

		return function () {

			if ( v1 === undefined ) v1 = new THREE.Vector3();
			console.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' );

			var te = this.elements;
			return v1.set( te[ 12 ], te[ 13 ], te[ 14 ] );

		};

	}(),

	setPosition: function ( v ) {

		var te = this.elements;

		te[ 12 ] = v.x;
		te[ 13 ] = v.y;
		te[ 14 ] = v.z;

		return this;

	},

	getInverse: function ( m, throwOnInvertible ) {

		// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
		var te = this.elements;
		var me = m.elements;

		var n11 = me[ 0 ], n12 = me[ 4 ], n13 = me[ 8 ], n14 = me[ 12 ];
		var n21 = me[ 1 ], n22 = me[ 5 ], n23 = me[ 9 ], n24 = me[ 13 ];
		var n31 = me[ 2 ], n32 = me[ 6 ], n33 = me[ 10 ], n34 = me[ 14 ];
		var n41 = me[ 3 ], n42 = me[ 7 ], n43 = me[ 11 ], n44 = me[ 15 ];

		te[ 0 ] = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44;
		te[ 4 ] = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44;
		te[ 8 ] = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44;
		te[ 12 ] = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;
		te[ 1 ] = n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44;
		te[ 5 ] = n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44;
		te[ 9 ] = n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44;
		te[ 13 ] = n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34;
		te[ 2 ] = n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44;
		te[ 6 ] = n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44;
		te[ 10 ] = n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44;
		te[ 14 ] = n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34;
		te[ 3 ] = n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43;
		te[ 7 ] = n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43;
		te[ 11 ] = n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43;
		te[ 15 ] = n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33;

		var det = n11 * te[ 0 ] + n21 * te[ 4 ] + n31 * te[ 8 ] + n41 * te[ 12 ];

		if ( det === 0 ) {

			var msg = "THREE.Matrix4.getInverse(): can't invert matrix, determinant is 0";

			if ( throwOnInvertible || false ) {

				throw new Error( msg );

			} else {

				console.warn( msg );

			}

			this.identity();

			return this;

		}

		this.multiplyScalar( 1 / det );

		return this;

	},

	scale: function ( v ) {

		var te = this.elements;
		var x = v.x, y = v.y, z = v.z;

		te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;
		te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;
		te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;
		te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;

		return this;

	},

	getMaxScaleOnAxis: function () {

		var te = this.elements;

		var scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];
		var scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];
		var scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];

		return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );

	},

	makeTranslation: function ( x, y, z ) {

		this.set(

			1, 0, 0, x,
			0, 1, 0, y,
			0, 0, 1, z,
			0, 0, 0, 1

		);

		return this;

	},

	makeRotationX: function ( theta ) {

		var c = Math.cos( theta ), s = Math.sin( theta );

		this.set(

			1, 0,  0, 0,
			0, c, - s, 0,
			0, s,  c, 0,
			0, 0,  0, 1

		);

		return this;

	},

	makeRotationY: function ( theta ) {

		var c = Math.cos( theta ), s = Math.sin( theta );

		this.set(

			 c, 0, s, 0,
			 0, 1, 0, 0,
			- s, 0, c, 0,
			 0, 0, 0, 1

		);

		return this;

	},

	makeRotationZ: function ( theta ) {

		var c = Math.cos( theta ), s = Math.sin( theta );

		this.set(

			c, - s, 0, 0,
			s,  c, 0, 0,
			0,  0, 1, 0,
			0,  0, 0, 1

		);

		return this;

	},

	makeRotationAxis: function ( axis, angle ) {

		// Based on http://www.gamedev.net/reference/articles/article1199.asp

		var c = Math.cos( angle );
		var s = Math.sin( angle );
		var t = 1 - c;
		var x = axis.x, y = axis.y, z = axis.z;
		var tx = t * x, ty = t * y;

		this.set(

			tx * x + c, tx * y - s * z, tx * z + s * y, 0,
			tx * y + s * z, ty * y + c, ty * z - s * x, 0,
			tx * z - s * y, ty * z + s * x, t * z * z + c, 0,
			0, 0, 0, 1

		);

		 return this;

	},

	makeScale: function ( x, y, z ) {

		this.set(

			x, 0, 0, 0,
			0, y, 0, 0,
			0, 0, z, 0,
			0, 0, 0, 1

		);

		return this;

	},

	compose: function ( position, quaternion, scale ) {

		this.makeRotationFromQuaternion( quaternion );
		this.scale( scale );
		this.setPosition( position );

		return this;

	},

	decompose: function () {

		var vector, matrix;

		return function ( position, quaternion, scale ) {

			if ( vector === undefined ) vector = new THREE.Vector3();
			if ( matrix === undefined ) matrix = new THREE.Matrix4();

			var te = this.elements;

			var sx = vector.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();
			var sy = vector.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();
			var sz = vector.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();

			// if determine is negative, we need to invert one scale
			var det = this.determinant();
			if ( det < 0 ) {

				sx = - sx;

			}

			position.x = te[ 12 ];
			position.y = te[ 13 ];
			position.z = te[ 14 ];

			// scale the rotation part

			matrix.elements.set( this.elements ); // at this point matrix is incomplete so we can't use .copy()

			var invSX = 1 / sx;
			var invSY = 1 / sy;
			var invSZ = 1 / sz;

			matrix.elements[ 0 ] *= invSX;
			matrix.elements[ 1 ] *= invSX;
			matrix.elements[ 2 ] *= invSX;

			matrix.elements[ 4 ] *= invSY;
			matrix.elements[ 5 ] *= invSY;
			matrix.elements[ 6 ] *= invSY;

			matrix.elements[ 8 ] *= invSZ;
			matrix.elements[ 9 ] *= invSZ;
			matrix.elements[ 10 ] *= invSZ;

			quaternion.setFromRotationMatrix( matrix );

			scale.x = sx;
			scale.y = sy;
			scale.z = sz;

			return this;

		};

	}(),

	makeFrustum: function ( left, right, bottom, top, near, far ) {

		var te = this.elements;
		var x = 2 * near / ( right - left );
		var y = 2 * near / ( top - bottom );

		var a = ( right + left ) / ( right - left );
		var b = ( top + bottom ) / ( top - bottom );
		var c = - ( far + near ) / ( far - near );
		var d = - 2 * far * near / ( far - near );

		te[ 0 ] = x;	te[ 4 ] = 0;	te[ 8 ] = a;	te[ 12 ] = 0;
		te[ 1 ] = 0;	te[ 5 ] = y;	te[ 9 ] = b;	te[ 13 ] = 0;
		te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = c;	te[ 14 ] = d;
		te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = - 1;	te[ 15 ] = 0;

		return this;

	},

	makePerspective: function ( fov, aspect, near, far ) {

		var ymax = near * Math.tan( THREE.Math.degToRad( fov * 0.5 ) );
		var ymin = - ymax;
		var xmin = ymin * aspect;
		var xmax = ymax * aspect;

		return this.makeFrustum( xmin, xmax, ymin, ymax, near, far );

	},

	makeOrthographic: function ( left, right, top, bottom, near, far ) {

		var te = this.elements;
		var w = right - left;
		var h = top - bottom;
		var p = far - near;

		var x = ( right + left ) / w;
		var y = ( top + bottom ) / h;
		var z = ( far + near ) / p;

		te[ 0 ] = 2 / w;	te[ 4 ] = 0;	te[ 8 ] = 0;	te[ 12 ] = - x;
		te[ 1 ] = 0;	te[ 5 ] = 2 / h;	te[ 9 ] = 0;	te[ 13 ] = - y;
		te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = - 2 / p;	te[ 14 ] = - z;
		te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = 0;	te[ 15 ] = 1;

		return this;

	},

	equals: function ( matrix ) {

		var te = this.elements;
		var me = matrix.elements;

		for ( var i = 0; i < 16; i ++ ) {

			if ( te[ i ] !== me[ i ] ) return false;

		}

		return true;

	},

	fromArray: function ( array ) {

		this.elements.set( array );

		return this;

	},

	toArray: function () {

		var te = this.elements;

		return [
			te[ 0 ], te[ 1 ], te[ 2 ], te[ 3 ],
			te[ 4 ], te[ 5 ], te[ 6 ], te[ 7 ],
			te[ 8 ], te[ 9 ], te[ 10 ], te[ 11 ],
			te[ 12 ], te[ 13 ], te[ 14 ], te[ 15 ]
		];

	}

};

// File:src/math/Ray.js

/**
 * @author bhouston / http://clara.io
 */

THREE.Ray = function ( origin, direction ) {

	this.origin = ( origin !== undefined ) ? origin : new THREE.Vector3();
	this.direction = ( direction !== undefined ) ? direction : new THREE.Vector3();

};

THREE.Ray.prototype = {

	constructor: THREE.Ray,

	set: function ( origin, direction ) {

		this.origin.copy( origin );
		this.direction.copy( direction );

		return this;

	},

	clone: function () {

		return new this.constructor().copy( this );

	},

	copy: function ( ray ) {

		this.origin.copy( ray.origin );
		this.direction.copy( ray.direction );

		return this;

	},

	at: function ( t, optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();

		return result.copy( this.direction ).multiplyScalar( t ).add( this.origin );

	},

	recast: function () {

		var v1 = new THREE.Vector3();

		return function ( t ) {

			this.origin.copy( this.at( t, v1 ) );

			return this;

		};

	}(),

	closestPointToPoint: function ( point, optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();
		result.subVectors( point, this.origin );
		var directionDistance = result.dot( this.direction );

		if ( directionDistance < 0 ) {

			return result.copy( this.origin );

		}

		return result.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );

	},

	distanceToPoint: function ( point ) {

		return Math.sqrt( this.distanceSqToPoint( point ) );

	},

	distanceSqToPoint: function () {

		var v1 = new THREE.Vector3();

		return function ( point ) {

			var directionDistance = v1.subVectors( point, this.origin ).dot( this.direction );

			// point behind the ray

			if ( directionDistance < 0 ) {

				return this.origin.distanceToSquared( point );

			}

			v1.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );

			return v1.distanceToSquared( point );

		};

	}(),

	distanceSqToSegment: function () {

		var segCenter = new THREE.Vector3();
		var segDir = new THREE.Vector3();
		var diff = new THREE.Vector3();

		return function ( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {

			// from http://www.geometrictools.com/LibMathematics/Distance/Wm5DistRay3Segment3.cpp
			// It returns the min distance between the ray and the segment
			// defined by v0 and v1
			// It can also set two optional targets :
			// - The closest point on the ray
			// - The closest point on the segment

			segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );
			segDir.copy( v1 ).sub( v0 ).normalize();
			diff.copy( this.origin ).sub( segCenter );

			var segExtent = v0.distanceTo( v1 ) * 0.5;
			var a01 = - this.direction.dot( segDir );
			var b0 = diff.dot( this.direction );
			var b1 = - diff.dot( segDir );
			var c = diff.lengthSq();
			var det = Math.abs( 1 - a01 * a01 );
			var s0, s1, sqrDist, extDet;

			if ( det > 0 ) {

				// The ray and segment are not parallel.

				s0 = a01 * b1 - b0;
				s1 = a01 * b0 - b1;
				extDet = segExtent * det;

				if ( s0 >= 0 ) {

					if ( s1 >= - extDet ) {

						if ( s1 <= extDet ) {

							// region 0
							// Minimum at interior points of ray and segment.

							var invDet = 1 / det;
							s0 *= invDet;
							s1 *= invDet;
							sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;

						} else {

							// region 1

							s1 = segExtent;
							s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

						}

					} else {

						// region 5

						s1 = - segExtent;
						s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
						sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

					}

				} else {

					if ( s1 <= - extDet ) {

						// region 4

						s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );
						s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
						sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

					} else if ( s1 <= extDet ) {

						// region 3

						s0 = 0;
						s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );
						sqrDist = s1 * ( s1 + 2 * b1 ) + c;

					} else {

						// region 2

						s0 = Math.max( 0, - ( a01 * segExtent + b0 ) );
						s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
						sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

					}

				}

			} else {

				// Ray and segment are parallel.

				s1 = ( a01 > 0 ) ? - segExtent : segExtent;
				s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
				sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

			}

			if ( optionalPointOnRay ) {

				optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );

			}

			if ( optionalPointOnSegment ) {

				optionalPointOnSegment.copy( segDir ).multiplyScalar( s1 ).add( segCenter );

			}

			return sqrDist;

		};

	}(),

	intersectSphere: function () {

		var v1 = new THREE.Vector3();

		return function ( sphere, optionalTarget ) {

			v1.subVectors( sphere.center, this.origin );

			var tca = v1.dot( this.direction );

			var d2 = v1.dot( v1 ) - tca * tca;

			var radius2 = sphere.radius * sphere.radius;

			if ( d2 > radius2 ) return null;

			var thc = Math.sqrt( radius2 - d2 );

			// t0 = first intersect point - entrance on front of sphere
			var t0 = tca - thc;

			// t1 = second intersect point - exit point on back of sphere
			var t1 = tca + thc;

			// test to see if both t0 and t1 are behind the ray - if so, return null
			if ( t0 < 0 && t1 < 0 ) return null;

			// test to see if t0 is behind the ray:
			// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
			// in order to always return an intersect point that is in front of the ray.
			if ( t0 < 0 ) return this.at( t1, optionalTarget );

			// else t0 is in front of the ray, so return the first collision point scaled by t0
			return this.at( t0, optionalTarget );

		}

	}(),

	intersectsSphere: function ( sphere ) {

		return this.distanceToPoint( sphere.center ) <= sphere.radius;

	},

	distanceToPlane: function ( plane ) {

		var denominator = plane.normal.dot( this.direction );

		if ( denominator === 0 ) {

			// line is coplanar, return origin
			if ( plane.distanceToPoint( this.origin ) === 0 ) {

				return 0;

			}

			// Null is preferable to undefined since undefined means.... it is undefined

			return null;

		}

		var t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator;

		// Return if the ray never intersects the plane

		return t >= 0 ? t :  null;

	},

	intersectPlane: function ( plane, optionalTarget ) {

		var t = this.distanceToPlane( plane );

		if ( t === null ) {

			return null;

		}

		return this.at( t, optionalTarget );

	},



	intersectsPlane: function ( plane ) {

		// check if the ray lies on the plane first

		var distToPoint = plane.distanceToPoint( this.origin );

		if ( distToPoint === 0 ) {

			return true;

		}

		var denominator = plane.normal.dot( this.direction );

		if ( denominator * distToPoint < 0 ) {

			return true;

		}

		// ray origin is behind the plane (and is pointing behind it)

		return false;

	},

	intersectBox: function ( box, optionalTarget ) {

		var tmin, tmax, tymin, tymax, tzmin, tzmax;

		var invdirx = 1 / this.direction.x,
			invdiry = 1 / this.direction.y,
			invdirz = 1 / this.direction.z;

		var origin = this.origin;

		if ( invdirx >= 0 ) {

			tmin = ( box.min.x - origin.x ) * invdirx;
			tmax = ( box.max.x - origin.x ) * invdirx;

		} else {

			tmin = ( box.max.x - origin.x ) * invdirx;
			tmax = ( box.min.x - origin.x ) * invdirx;

		}

		if ( invdiry >= 0 ) {

			tymin = ( box.min.y - origin.y ) * invdiry;
			tymax = ( box.max.y - origin.y ) * invdiry;

		} else {

			tymin = ( box.max.y - origin.y ) * invdiry;
			tymax = ( box.min.y - origin.y ) * invdiry;

		}

		if ( ( tmin > tymax ) || ( tymin > tmax ) ) return null;

		// These lines also handle the case where tmin or tmax is NaN
		// (result of 0 * Infinity). x !== x returns true if x is NaN

		if ( tymin > tmin || tmin !== tmin ) tmin = tymin;

		if ( tymax < tmax || tmax !== tmax ) tmax = tymax;

		if ( invdirz >= 0 ) {

			tzmin = ( box.min.z - origin.z ) * invdirz;
			tzmax = ( box.max.z - origin.z ) * invdirz;

		} else {

			tzmin = ( box.max.z - origin.z ) * invdirz;
			tzmax = ( box.min.z - origin.z ) * invdirz;

		}

		if ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null;

		if ( tzmin > tmin || tmin !== tmin ) tmin = tzmin;

		if ( tzmax < tmax || tmax !== tmax ) tmax = tzmax;

		//return point closest to the ray (positive side)

		if ( tmax < 0 ) return null;

		return this.at( tmin >= 0 ? tmin : tmax, optionalTarget );

	},

	intersectsBox: ( function () {

		var v = new THREE.Vector3();

		return function ( box ) {

			return this.intersectBox( box, v ) !== null;

		};

	} )(),

	intersectTriangle: function () {

		// Compute the offset origin, edges, and normal.
		var diff = new THREE.Vector3();
		var edge1 = new THREE.Vector3();
		var edge2 = new THREE.Vector3();
		var normal = new THREE.Vector3();

		return function ( a, b, c, backfaceCulling, optionalTarget ) {

			// from http://www.geometrictools.com/LibMathematics/Intersection/Wm5IntrRay3Triangle3.cpp

			edge1.subVectors( b, a );
			edge2.subVectors( c, a );
			normal.crossVectors( edge1, edge2 );

			// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
			// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
			//   |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
			//   |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
			//   |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)
			var DdN = this.direction.dot( normal );
			var sign;

			if ( DdN > 0 ) {

				if ( backfaceCulling ) return null;
				sign = 1;

			} else if ( DdN < 0 ) {

				sign = - 1;
				DdN = - DdN;

			} else {

				return null;

			}

			diff.subVectors( this.origin, a );
			var DdQxE2 = sign * this.direction.dot( edge2.crossVectors( diff, edge2 ) );

			// b1 < 0, no intersection
			if ( DdQxE2 < 0 ) {

				return null;

			}

			var DdE1xQ = sign * this.direction.dot( edge1.cross( diff ) );

			// b2 < 0, no intersection
			if ( DdE1xQ < 0 ) {

				return null;

			}

			// b1+b2 > 1, no intersection
			if ( DdQxE2 + DdE1xQ > DdN ) {

				return null;

			}

			// Line intersects triangle, check if ray does.
			var QdN = - sign * diff.dot( normal );

			// t < 0, no intersection
			if ( QdN < 0 ) {

				return null;

			}

			// Ray intersects triangle.
			return this.at( QdN / DdN, optionalTarget );

		};

	}(),

	applyMatrix4: function ( matrix4 ) {

		this.direction.add( this.origin ).applyMatrix4( matrix4 );
		this.origin.applyMatrix4( matrix4 );
		this.direction.sub( this.origin );
		this.direction.normalize();

		return this;

	},

	equals: function ( ray ) {

		return ray.origin.equals( this.origin ) && ray.direction.equals( this.direction );

	}

};

// File:src/math/Sphere.js

/**
 * @author bhouston / http://clara.io
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Sphere = function ( center, radius ) {

	this.center = ( center !== undefined ) ? center : new THREE.Vector3();
	this.radius = ( radius !== undefined ) ? radius : 0;

};

THREE.Sphere.prototype = {

	constructor: THREE.Sphere,

	set: function ( center, radius ) {

		this.center.copy( center );
		this.radius = radius;

		return this;

	},

	setFromPoints: function () {

		var box = new THREE.Box3();

		return function ( points, optionalCenter ) {

			var center = this.center;

			if ( optionalCenter !== undefined ) {

				center.copy( optionalCenter );

			} else {

				box.setFromPoints( points ).center( center );

			}

			var maxRadiusSq = 0;

			for ( var i = 0, il = points.length; i < il; i ++ ) {

				maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );

			}

			this.radius = Math.sqrt( maxRadiusSq );

			return this;

		};

	}(),

	clone: function () {

		return new this.constructor().copy( this );

	},

	copy: function ( sphere ) {

		this.center.copy( sphere.center );
		this.radius = sphere.radius;

		return this;

	},

	empty: function () {

		return ( this.radius <= 0 );

	},

	containsPoint: function ( point ) {

		return ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) );

	},

	distanceToPoint: function ( point ) {

		return ( point.distanceTo( this.center ) - this.radius );

	},

	intersectsSphere: function ( sphere ) {

		var radiusSum = this.radius + sphere.radius;

		return sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum );

	},

	intersectsBox: function ( box ) {

		return box.intersectsSphere( this );

	},

	intersectsPlane: function ( plane ) {

		// We use the following equation to compute the signed distance from
		// the center of the sphere to the plane.
		//
		// distance = q * n - d
		//
		// If this distance is greater than the radius of the sphere,
		// then there is no intersection.

		return Math.abs( this.center.dot( plane.normal ) - plane.constant ) <= this.radius;

	},

	clampPoint: function ( point, optionalTarget ) {

		var deltaLengthSq = this.center.distanceToSquared( point );

		var result = optionalTarget || new THREE.Vector3();

		result.copy( point );

		if ( deltaLengthSq > ( this.radius * this.radius ) ) {

			result.sub( this.center ).normalize();
			result.multiplyScalar( this.radius ).add( this.center );

		}

		return result;

	},

	getBoundingBox: function ( optionalTarget ) {

		var box = optionalTarget || new THREE.Box3();

		box.set( this.center, this.center );
		box.expandByScalar( this.radius );

		return box;

	},

	applyMatrix4: function ( matrix ) {

		this.center.applyMatrix4( matrix );
		this.radius = this.radius * matrix.getMaxScaleOnAxis();

		return this;

	},

	translate: function ( offset ) {

		this.center.add( offset );

		return this;

	},

	equals: function ( sphere ) {

		return sphere.center.equals( this.center ) && ( sphere.radius === this.radius );

	}

};

// File:src/math/Frustum.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 * @author bhouston / http://clara.io
 */

THREE.Frustum = function ( p0, p1, p2, p3, p4, p5 ) {

	this.planes = [

		( p0 !== undefined ) ? p0 : new THREE.Plane(),
		( p1 !== undefined ) ? p1 : new THREE.Plane(),
		( p2 !== undefined ) ? p2 : new THREE.Plane(),
		( p3 !== undefined ) ? p3 : new THREE.Plane(),
		( p4 !== undefined ) ? p4 : new THREE.Plane(),
		( p5 !== undefined ) ? p5 : new THREE.Plane()

	];

};

THREE.Frustum.prototype = {

	constructor: THREE.Frustum,

	set: function ( p0, p1, p2, p3, p4, p5 ) {

		var planes = this.planes;

		planes[ 0 ].copy( p0 );
		planes[ 1 ].copy( p1 );
		planes[ 2 ].copy( p2 );
		planes[ 3 ].copy( p3 );
		planes[ 4 ].copy( p4 );
		planes[ 5 ].copy( p5 );

		return this;

	},

	clone: function () {

		return new this.constructor().copy( this );

	},

	copy: function ( frustum ) {

		var planes = this.planes;

		for ( var i = 0; i < 6; i ++ ) {

			planes[ i ].copy( frustum.planes[ i ] );

		}

		return this;

	},

	setFromMatrix: function ( m ) {

		var planes = this.planes;
		var me = m.elements;
		var me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ];
		var me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ];
		var me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ];
		var me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ];

		planes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize();
		planes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize();
		planes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize();
		planes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize();
		planes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize();
		planes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize();

		return this;

	},

	intersectsObject: function () {

		var sphere = new THREE.Sphere();

		return function ( object ) {

			var geometry = object.geometry;

			if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

			sphere.copy( geometry.boundingSphere );
			sphere.applyMatrix4( object.matrixWorld );

			return this.intersectsSphere( sphere );

		};

	}(),

	intersectsSphere: function ( sphere ) {

		var planes = this.planes;
		var center = sphere.center;
		var negRadius = - sphere.radius;

		for ( var i = 0; i < 6; i ++ ) {

			var distance = planes[ i ].distanceToPoint( center );

			if ( distance < negRadius ) {

				return false;

			}

		}

		return true;

	},

	intersectsBox: function () {

		var p1 = new THREE.Vector3(),
			p2 = new THREE.Vector3();

		return function ( box ) {

			var planes = this.planes;

			for ( var i = 0; i < 6 ; i ++ ) {

				var plane = planes[ i ];

				p1.x = plane.normal.x > 0 ? box.min.x : box.max.x;
				p2.x = plane.normal.x > 0 ? box.max.x : box.min.x;
				p1.y = plane.normal.y > 0 ? box.min.y : box.max.y;
				p2.y = plane.normal.y > 0 ? box.max.y : box.min.y;
				p1.z = plane.normal.z > 0 ? box.min.z : box.max.z;
				p2.z = plane.normal.z > 0 ? box.max.z : box.min.z;

				var d1 = plane.distanceToPoint( p1 );
				var d2 = plane.distanceToPoint( p2 );

				// if both outside plane, no intersection

				if ( d1 < 0 && d2 < 0 ) {

					return false;

				}

			}

			return true;

		};

	}(),


	containsPoint: function ( point ) {

		var planes = this.planes;

		for ( var i = 0; i < 6; i ++ ) {

			if ( planes[ i ].distanceToPoint( point ) < 0 ) {

				return false;

			}

		}

		return true;

	}

};

// File:src/math/Plane.js

/**
 * @author bhouston / http://clara.io
 */

THREE.Plane = function ( normal, constant ) {

	this.normal = ( normal !== undefined ) ? normal : new THREE.Vector3( 1, 0, 0 );
	this.constant = ( constant !== undefined ) ? constant : 0;

};

THREE.Plane.prototype = {

	constructor: THREE.Plane,

	set: function ( normal, constant ) {

		this.normal.copy( normal );
		this.constant = constant;

		return this;

	},

	setComponents: function ( x, y, z, w ) {

		this.normal.set( x, y, z );
		this.constant = w;

		return this;

	},

	setFromNormalAndCoplanarPoint: function ( normal, point ) {

		this.normal.copy( normal );
		this.constant = - point.dot( this.normal );	// must be this.normal, not normal, as this.normal is normalized

		return this;

	},

	setFromCoplanarPoints: function () {

		var v1 = new THREE.Vector3();
		var v2 = new THREE.Vector3();

		return function ( a, b, c ) {

			var normal = v1.subVectors( c, b ).cross( v2.subVectors( a, b ) ).normalize();

			// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?

			this.setFromNormalAndCoplanarPoint( normal, a );

			return this;

		};

	}(),

	clone: function () {

		return new this.constructor().copy( this );

	},

	copy: function ( plane ) {

		this.normal.copy( plane.normal );
		this.constant = plane.constant;

		return this;

	},

	normalize: function () {

		// Note: will lead to a divide by zero if the plane is invalid.

		var inverseNormalLength = 1.0 / this.normal.length();
		this.normal.multiplyScalar( inverseNormalLength );
		this.constant *= inverseNormalLength;

		return this;

	},

	negate: function () {

		this.constant *= - 1;
		this.normal.negate();

		return this;

	},

	distanceToPoint: function ( point ) {

		return this.normal.dot( point ) + this.constant;

	},

	distanceToSphere: function ( sphere ) {

		return this.distanceToPoint( sphere.center ) - sphere.radius;

	},

	projectPoint: function ( point, optionalTarget ) {

		return this.orthoPoint( point, optionalTarget ).sub( point ).negate();

	},

	orthoPoint: function ( point, optionalTarget ) {

		var perpendicularMagnitude = this.distanceToPoint( point );

		var result = optionalTarget || new THREE.Vector3();
		return result.copy( this.normal ).multiplyScalar( perpendicularMagnitude );

	},

	intersectLine: function () {

		var v1 = new THREE.Vector3();

		return function ( line, optionalTarget ) {

			var result = optionalTarget || new THREE.Vector3();

			var direction = line.delta( v1 );

			var denominator = this.normal.dot( direction );

			if ( denominator === 0 ) {

				// line is coplanar, return origin
				if ( this.distanceToPoint( line.start ) === 0 ) {

					return result.copy( line.start );

				}

				// Unsure if this is the correct method to handle this case.
				return undefined;

			}

			var t = - ( line.start.dot( this.normal ) + this.constant ) / denominator;

			if ( t < 0 || t > 1 ) {

				return undefined;

			}

			return result.copy( direction ).multiplyScalar( t ).add( line.start );

		};

	}(),

	intersectsLine: function ( line ) {

		// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.

		var startSign = this.distanceToPoint( line.start );
		var endSign = this.distanceToPoint( line.end );

		return ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 );

	},

	intersectsBox: function ( box ) {

		return box.intersectsPlane( this );

	},

	intersectsSphere: function ( sphere ) {

		return sphere.intersectsPlane( this );

	},

	coplanarPoint: function ( optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();
		return result.copy( this.normal ).multiplyScalar( - this.constant );

	},

	applyMatrix4: function () {

		var v1 = new THREE.Vector3();
		var v2 = new THREE.Vector3();
		var m1 = new THREE.Matrix3();

		return function ( matrix, optionalNormalMatrix ) {

			// compute new normal based on theory here:
			// http://www.songho.ca/opengl/gl_normaltransform.html
			var normalMatrix = optionalNormalMatrix || m1.getNormalMatrix( matrix );
			var newNormal = v1.copy( this.normal ).applyMatrix3( normalMatrix );

			var newCoplanarPoint = this.coplanarPoint( v2 );
			newCoplanarPoint.applyMatrix4( matrix );

			this.setFromNormalAndCoplanarPoint( newNormal, newCoplanarPoint );

			return this;

		};

	}(),

	translate: function ( offset ) {

		this.constant = this.constant - offset.dot( this.normal );

		return this;

	},

	equals: function ( plane ) {

		return plane.normal.equals( this.normal ) && ( plane.constant === this.constant );

	}

};

// File:src/math/Math.js

/**
 * @author alteredq / http://alteredqualia.com/
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Math = {

	generateUUID: function () {

		// http://www.broofa.com/Tools/Math.uuid.htm

		var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split( '' );
		var uuid = new Array( 36 );
		var rnd = 0, r;

		return function () {

			for ( var i = 0; i < 36; i ++ ) {

				if ( i === 8 || i === 13 || i === 18 || i === 23 ) {

					uuid[ i ] = '-';

				} else if ( i === 14 ) {

					uuid[ i ] = '4';

				} else {

					if ( rnd <= 0x02 ) rnd = 0x2000000 + ( Math.random() * 0x1000000 ) | 0;
					r = rnd & 0xf;
					rnd = rnd >> 4;
					uuid[ i ] = chars[ ( i === 19 ) ? ( r & 0x3 ) | 0x8 : r ];

				}

			}

			return uuid.join( '' );

		};

	}(),

	clamp: function ( value, min, max ) {

		return Math.max( min, Math.min( max, value ) );

	},

	// compute euclidian modulo of m % n
	// https://en.wikipedia.org/wiki/Modulo_operation

	euclideanModulo: function ( n, m ) {

		return ( ( n % m ) + m ) % m;

	},

	// Linear mapping from range <a1, a2> to range <b1, b2>

	mapLinear: function ( x, a1, a2, b1, b2 ) {

		return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );

	},

	// http://en.wikipedia.org/wiki/Smoothstep

	smoothstep: function ( x, min, max ) {

		if ( x <= min ) return 0;
		if ( x >= max ) return 1;

		x = ( x - min ) / ( max - min );

		return x * x * ( 3 - 2 * x );

	},

	smootherstep: function ( x, min, max ) {

		if ( x <= min ) return 0;
		if ( x >= max ) return 1;

		x = ( x - min ) / ( max - min );

		return x * x * x * ( x * ( x * 6 - 15 ) + 10 );

	},

	random16: function () {

		console.warn( 'THREE.Math.random16() has been deprecated. Use Math.random() instead.' );
		return Math.random();

	},

	// Random integer from <low, high> interval

	randInt: function ( low, high ) {

		return low + Math.floor( Math.random() * ( high - low + 1 ) );

	},

	// Random float from <low, high> interval

	randFloat: function ( low, high ) {

		return low + Math.random() * ( high - low );

	},

	// Random float from <-range/2, range/2> interval

	randFloatSpread: function ( range ) {

		return range * ( 0.5 - Math.random() );

	},

	degToRad: function () {

		var degreeToRadiansFactor = Math.PI / 180;

		return function ( degrees ) {

			return degrees * degreeToRadiansFactor;

		};

	}(),

	radToDeg: function () {

		var radianToDegreesFactor = 180 / Math.PI;

		return function ( radians ) {

			return radians * radianToDegreesFactor;

		};

	}(),

	isPowerOfTwo: function ( value ) {

		return ( value & ( value - 1 ) ) === 0 && value !== 0;

	},

	nearestPowerOfTwo: function ( value ) {

		return Math.pow( 2, Math.round( Math.log( value ) / Math.LN2 ) );

	},

	nextPowerOfTwo: function ( value ) {

		value --;
		value |= value >> 1;
		value |= value >> 2;
		value |= value >> 4;
		value |= value >> 8;
		value |= value >> 16;
		value ++;

		return value;

	}

};

// File:src/math/Spline.js

/**
 * Spline from Tween.js, slightly optimized (and trashed)
 * http://sole.github.com/tween.js/examples/05_spline.html
 *
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 */

THREE.Spline = function ( points ) {

	this.points = points;

	var c = [], v3 = { x: 0, y: 0, z: 0 },
	point, intPoint, weight, w2, w3,
	pa, pb, pc, pd;

	this.initFromArray = function ( a ) {

		this.points = [];

		for ( var i = 0; i < a.length; i ++ ) {

			this.points[ i ] = { x: a[ i ][ 0 ], y: a[ i ][ 1 ], z: a[ i ][ 2 ] };

		}

	};

	this.getPoint = function ( k ) {

		point = ( this.points.length - 1 ) * k;
		intPoint = Math.floor( point );
		weight = point - intPoint;

		c[ 0 ] = intPoint === 0 ? intPoint : intPoint - 1;
		c[ 1 ] = intPoint;
		c[ 2 ] = intPoint  > this.points.length - 2 ? this.points.length - 1 : intPoint + 1;
		c[ 3 ] = intPoint  > this.points.length - 3 ? this.points.length - 1 : intPoint + 2;

		pa = this.points[ c[ 0 ] ];
		pb = this.points[ c[ 1 ] ];
		pc = this.points[ c[ 2 ] ];
		pd = this.points[ c[ 3 ] ];

		w2 = weight * weight;
		w3 = weight * w2;

		v3.x = interpolate( pa.x, pb.x, pc.x, pd.x, weight, w2, w3 );
		v3.y = interpolate( pa.y, pb.y, pc.y, pd.y, weight, w2, w3 );
		v3.z = interpolate( pa.z, pb.z, pc.z, pd.z, weight, w2, w3 );

		return v3;

	};

	this.getControlPointsArray = function () {

		var i, p, l = this.points.length,
			coords = [];

		for ( i = 0; i < l; i ++ ) {

			p = this.points[ i ];
			coords[ i ] = [ p.x, p.y, p.z ];

		}

		return coords;

	};

	// approximate length by summing linear segments

	this.getLength = function ( nSubDivisions ) {

		var i, index, nSamples, position,
			point = 0, intPoint = 0, oldIntPoint = 0,
			oldPosition = new THREE.Vector3(),
			tmpVec = new THREE.Vector3(),
			chunkLengths = [],
			totalLength = 0;

		// first point has 0 length

		chunkLengths[ 0 ] = 0;

		if ( ! nSubDivisions ) nSubDivisions = 100;

		nSamples = this.points.length * nSubDivisions;

		oldPosition.copy( this.points[ 0 ] );

		for ( i = 1; i < nSamples; i ++ ) {

			index = i / nSamples;

			position = this.getPoint( index );
			tmpVec.copy( position );

			totalLength += tmpVec.distanceTo( oldPosition );

			oldPosition.copy( position );

			point = ( this.points.length - 1 ) * index;
			intPoint = Math.floor( point );

			if ( intPoint !== oldIntPoint ) {

				chunkLengths[ intPoint ] = totalLength;
				oldIntPoint = intPoint;

			}

		}

		// last point ends with total length

		chunkLengths[ chunkLengths.length ] = totalLength;

		return { chunks: chunkLengths, total: totalLength };

	};

	this.reparametrizeByArcLength = function ( samplingCoef ) {

		var i, j,
			index, indexCurrent, indexNext,
			realDistance,
			sampling, position,
			newpoints = [],
			tmpVec = new THREE.Vector3(),
			sl = this.getLength();

		newpoints.push( tmpVec.copy( this.points[ 0 ] ).clone() );

		for ( i = 1; i < this.points.length; i ++ ) {

			//tmpVec.copy( this.points[ i - 1 ] );
			//linearDistance = tmpVec.distanceTo( this.points[ i ] );

			realDistance = sl.chunks[ i ] - sl.chunks[ i - 1 ];

			sampling = Math.ceil( samplingCoef * realDistance / sl.total );

			indexCurrent = ( i - 1 ) / ( this.points.length - 1 );
			indexNext = i / ( this.points.length - 1 );

			for ( j = 1; j < sampling - 1; j ++ ) {

				index = indexCurrent + j * ( 1 / sampling ) * ( indexNext - indexCurrent );

				position = this.getPoint( index );
				newpoints.push( tmpVec.copy( position ).clone() );

			}

			newpoints.push( tmpVec.copy( this.points[ i ] ).clone() );

		}

		this.points = newpoints;

	};

	// Catmull-Rom

	function interpolate( p0, p1, p2, p3, t, t2, t3 ) {

		var v0 = ( p2 - p0 ) * 0.5,
			v1 = ( p3 - p1 ) * 0.5;

		return ( 2 * ( p1 - p2 ) + v0 + v1 ) * t3 + ( - 3 * ( p1 - p2 ) - 2 * v0 - v1 ) * t2 + v0 * t + p1;

	}

};

// File:src/math/Triangle.js

/**
 * @author bhouston / http://clara.io
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Triangle = function ( a, b, c ) {

	this.a = ( a !== undefined ) ? a : new THREE.Vector3();
	this.b = ( b !== undefined ) ? b : new THREE.Vector3();
	this.c = ( c !== undefined ) ? c : new THREE.Vector3();

};

THREE.Triangle.normal = function () {

	var v0 = new THREE.Vector3();

	return function ( a, b, c, optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();

		result.subVectors( c, b );
		v0.subVectors( a, b );
		result.cross( v0 );

		var resultLengthSq = result.lengthSq();
		if ( resultLengthSq > 0 ) {

			return result.multiplyScalar( 1 / Math.sqrt( resultLengthSq ) );

		}

		return result.set( 0, 0, 0 );

	};

}();

// static/instance method to calculate barycentric coordinates
// based on: http://www.blackpawn.com/texts/pointinpoly/default.html
THREE.Triangle.barycoordFromPoint = function () {

	var v0 = new THREE.Vector3();
	var v1 = new THREE.Vector3();
	var v2 = new THREE.Vector3();

	return function ( point, a, b, c, optionalTarget ) {

		v0.subVectors( c, a );
		v1.subVectors( b, a );
		v2.subVectors( point, a );

		var dot00 = v0.dot( v0 );
		var dot01 = v0.dot( v1 );
		var dot02 = v0.dot( v2 );
		var dot11 = v1.dot( v1 );
		var dot12 = v1.dot( v2 );

		var denom = ( dot00 * dot11 - dot01 * dot01 );

		var result = optionalTarget || new THREE.Vector3();

		// collinear or singular triangle
		if ( denom === 0 ) {

			// arbitrary location outside of triangle?
			// not sure if this is the best idea, maybe should be returning undefined
			return result.set( - 2, - 1, - 1 );

		}

		var invDenom = 1 / denom;
		var u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom;
		var v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom;

		// barycentric coordinates must always sum to 1
		return result.set( 1 - u - v, v, u );

	};

}();

THREE.Triangle.containsPoint = function () {

	var v1 = new THREE.Vector3();

	return function ( point, a, b, c ) {

		var result = THREE.Triangle.barycoordFromPoint( point, a, b, c, v1 );

		return ( result.x >= 0 ) && ( result.y >= 0 ) && ( ( result.x + result.y ) <= 1 );

	};

}();

THREE.Triangle.prototype = {

	constructor: THREE.Triangle,

	set: function ( a, b, c ) {

		this.a.copy( a );
		this.b.copy( b );
		this.c.copy( c );

		return this;

	},

	setFromPointsAndIndices: function ( points, i0, i1, i2 ) {

		this.a.copy( points[ i0 ] );
		this.b.copy( points[ i1 ] );
		this.c.copy( points[ i2 ] );

		return this;

	},

	clone: function () {

		return new this.constructor().copy( this );

	},

	copy: function ( triangle ) {

		this.a.copy( triangle.a );
		this.b.copy( triangle.b );
		this.c.copy( triangle.c );

		return this;

	},

	area: function () {

		var v0 = new THREE.Vector3();
		var v1 = new THREE.Vector3();

		return function () {

			v0.subVectors( this.c, this.b );
			v1.subVectors( this.a, this.b );

			return v0.cross( v1 ).length() * 0.5;

		};

	}(),

	midpoint: function ( optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();
		return result.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 );

	},

	normal: function ( optionalTarget ) {

		return THREE.Triangle.normal( this.a, this.b, this.c, optionalTarget );

	},

	plane: function ( optionalTarget ) {

		var result = optionalTarget || new THREE.Plane();

		return result.setFromCoplanarPoints( this.a, this.b, this.c );

	},

	barycoordFromPoint: function ( point, optionalTarget ) {

		return THREE.Triangle.barycoordFromPoint( point, this.a, this.b, this.c, optionalTarget );

	},

	containsPoint: function ( point ) {

		return THREE.Triangle.containsPoint( point, this.a, this.b, this.c );

	},

	equals: function ( triangle ) {

		return triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c );

	}

};

// File:src/math/Interpolant.js

/**
 * Abstract base class of interpolants over parametric samples.
 *
 * The parameter domain is one dimensional, typically the time or a path
 * along a curve defined by the data.
 *
 * The sample values can have any dimensionality and derived classes may
 * apply special interpretations to the data.
 *
 * This class provides the interval seek in a Template Method, deferring
 * the actual interpolation to derived classes.
 *
 * Time complexity is O(1) for linear access crossing at most two points
 * and O(log N) for random access, where N is the number of positions.
 *
 * References:
 *
 * 		http://www.oodesign.com/template-method-pattern.html
 *
 * @author tschw
 */

THREE.Interpolant = function(
		parameterPositions, sampleValues, sampleSize, resultBuffer ) {

	this.parameterPositions = parameterPositions;
	this._cachedIndex = 0;

	this.resultBuffer = resultBuffer !== undefined ?
			resultBuffer : new sampleValues.constructor( sampleSize );
	this.sampleValues = sampleValues;
	this.valueSize = sampleSize;

};

THREE.Interpolant.prototype = {

	constructor: THREE.Intepolant,

	evaluate: function( t ) {

		var pp = this.parameterPositions,
			i1 = this._cachedIndex,

			t1 = pp[   i1   ],
			t0 = pp[ i1 - 1 ];

		validate_interval: {

			seek: {

				var right;

				linear_scan: {
//- See http://jsperf.com/comparison-to-undefined/3
//- slower code:
//-
//- 				if ( t >= t1 || t1 === undefined ) {
					forward_scan: if ( ! ( t < t1 ) ) {

						for ( var giveUpAt = i1 + 2; ;) {

							if ( t1 === undefined ) {

								if ( t < t0 ) break forward_scan;

								// after end

								i1 = pp.length;
								this._cachedIndex = i1;
								return this.afterEnd_( i1 - 1, t, t0 );

							}

							if ( i1 === giveUpAt ) break; // this loop

							t0 = t1;
							t1 = pp[ ++ i1 ];

							if ( t < t1 ) {

								// we have arrived at the sought interval
								break seek;

							}

						}

						// prepare binary search on the right side of the index
						right = pp.length;
						break linear_scan;

					}

//- slower code:
//-					if ( t < t0 || t0 === undefined ) {
					if ( ! ( t >= t0 ) ) {

						// looping?

						var t1global = pp[ 1 ];

						if ( t < t1global ) {

							i1 = 2; // + 1, using the scan for the details
							t0 = t1global;

						}

						// linear reverse scan

						for ( var giveUpAt = i1 - 2; ;) {

							if ( t0 === undefined ) {

								// before start

								this._cachedIndex = 0;
								return this.beforeStart_( 0, t, t1 );

							}

							if ( i1 === giveUpAt ) break; // this loop

							t1 = t0;
							t0 = pp[ -- i1 - 1 ];

							if ( t >= t0 ) {

								// we have arrived at the sought interval
								break seek;

							}

						}

						// prepare binary search on the left side of the index
						right = i1;
						i1 = 0;
						break linear_scan;

					}

					// the interval is valid

					break validate_interval;

				} // linear scan

				// binary search

				while ( i1 < right ) {

					var mid = ( i1 + right ) >>> 1;

					if ( t < pp[ mid ] ) {

						right = mid;

					} else {

						i1 = mid + 1;

					}

				}

				t1 = pp[   i1   ];
				t0 = pp[ i1 - 1 ];

				// check boundary cases, again

				if ( t0 === undefined ) {

					this._cachedIndex = 0;
					return this.beforeStart_( 0, t, t1 );

				}

				if ( t1 === undefined ) {

					i1 = pp.length;
					this._cachedIndex = i1;
					return this.afterEnd_( i1 - 1, t0, t );

				}

			} // seek

			this._cachedIndex = i1;

			this.intervalChanged_( i1, t0, t1 );

		} // validate_interval

		return this.interpolate_( i1, t0, t, t1 );

	},

	settings: null, // optional, subclass-specific settings structure
	// Note: The indirection allows central control of many interpolants.

	// --- Protected interface

	DefaultSettings_: {},

	getSettings_: function() {

		return this.settings || this.DefaultSettings_;

	},

	copySampleValue_: function( index ) {

		// copies a sample value to the result buffer

		var result = this.resultBuffer,
			values = this.sampleValues,
			stride = this.valueSize,
			offset = index * stride;

		for ( var i = 0; i !== stride; ++ i ) {

			result[ i ] = values[ offset + i ];

		}

		return result;

	},

	// Template methods for derived classes:

	interpolate_: function( i1, t0, t, t1 ) {

		throw new Error( "call to abstract method" );
		// implementations shall return this.resultBuffer

	},

	intervalChanged_: function( i1, t0, t1 ) {

		// empty

	}

};

Object.assign( THREE.Interpolant.prototype, {

	beforeStart_: //( 0, t, t0 ), returns this.resultBuffer
		THREE.Interpolant.prototype.copySampleValue_,

	afterEnd_: //( N-1, tN-1, t ), returns this.resultBuffer
		THREE.Interpolant.prototype.copySampleValue_

} );

// File:src/math/interpolants/CubicInterpolant.js

/**
 * Fast and simple cubic spline interpolant.
 *
 * It was derived from a Hermitian construction setting the first derivative
 * at each sample position to the linear slope between neighboring positions
 * over their parameter interval.
 *
 * @author tschw
 */

THREE.CubicInterpolant = function(
		parameterPositions, sampleValues, sampleSize, resultBuffer ) {

	THREE.Interpolant.call(
			this, parameterPositions, sampleValues, sampleSize, resultBuffer );

	this._weightPrev = -0;
	this._offsetPrev = -0;
	this._weightNext = -0;
	this._offsetNext = -0;

};

THREE.CubicInterpolant.prototype =
		Object.assign( Object.create( THREE.Interpolant.prototype ), {

	constructor: THREE.CubicInterpolant,

	DefaultSettings_: {

		endingStart: 	THREE.ZeroCurvatureEnding,
		endingEnd:		THREE.ZeroCurvatureEnding

	},

	intervalChanged_: function( i1, t0, t1 ) {

		var pp = this.parameterPositions,
			iPrev = i1 - 2,
			iNext = i1 + 1,

			tPrev = pp[ iPrev ],
			tNext = pp[ iNext ];

		if ( tPrev === undefined ) {

			switch ( this.getSettings_().endingStart ) {

				case THREE.ZeroSlopeEnding:

					// f'(t0) = 0
					iPrev = i1;
					tPrev = 2 * t0 - t1;

					break;

				case THREE.WrapAroundEnding:

					// use the other end of the curve
					iPrev = pp.length - 2;
					tPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ];

					break;

				default: // ZeroCurvatureEnding

					// f''(t0) = 0 a.k.a. Natural Spline
					iPrev = i1;
					tPrev = t1;

			}

		}

		if ( tNext === undefined ) {

			switch ( this.getSettings_().endingEnd ) {

				case THREE.ZeroSlopeEnding:

					// f'(tN) = 0
					iNext = i1;
					tNext = 2 * t1 - t0;

					break;

				case THREE.WrapAroundEnding:

					// use the other end of the curve
					iNext = 1;
					tNext = t1 + pp[ 1 ] - pp[ 0 ];

					break;

				default: // ZeroCurvatureEnding

					// f''(tN) = 0, a.k.a. Natural Spline
					iNext = i1 - 1;
					tNext = t0;

			}

		}

		var halfDt = ( t1 - t0 ) * 0.5,
			stride = this.valueSize;

		this._weightPrev = halfDt / ( t0 - tPrev );
		this._weightNext = halfDt / ( tNext - t1 );
		this._offsetPrev = iPrev * stride;
		this._offsetNext = iNext * stride;

	},

	interpolate_: function( i1, t0, t, t1 ) {

		var result = this.resultBuffer,
			values = this.sampleValues,
			stride = this.valueSize,

			o1 = i1 * stride,		o0 = o1 - stride,
			oP = this._offsetPrev, 	oN = this._offsetNext,
			wP = this._weightPrev,	wN = this._weightNext,

			p = ( t - t0 ) / ( t1 - t0 ),
			pp = p * p,
			ppp = pp * p;

		// evaluate polynomials

		var sP =     - wP   * ppp   +         2 * wP    * pp    -          wP   * p;
		var s0 = ( 1 + wP ) * ppp   + (-1.5 - 2 * wP )  * pp    + ( -0.5 + wP ) * p     + 1;
		var s1 = (-1 - wN ) * ppp   + ( 1.5 +   wN   )  * pp    +    0.5        * p;
		var sN =       wN   * ppp   -           wN      * pp;

		// combine data linearly

		for ( var i = 0; i !== stride; ++ i ) {

			result[ i ] =
					sP * values[ oP + i ] +
					s0 * values[ o0 + i ] +
					s1 * values[ o1 + i ] +
					sN * values[ oN + i ];

		}

		return result;

	}

} );

// File:src/math/interpolants/DiscreteInterpolant.js

/**
 *
 * Interpolant that evaluates to the sample value at the position preceeding
 * the parameter.
 *
 * @author tschw
 */

THREE.DiscreteInterpolant = function(
		parameterPositions, sampleValues, sampleSize, resultBuffer ) {

	THREE.Interpolant.call(
			this, parameterPositions, sampleValues, sampleSize, resultBuffer );

};

THREE.DiscreteInterpolant.prototype =
		Object.assign( Object.create( THREE.Interpolant.prototype ), {

	constructor: THREE.DiscreteInterpolant,

	interpolate_: function( i1, t0, t, t1 ) {

		return this.copySampleValue_( i1 - 1 );

	}

} );

// File:src/math/interpolants/LinearInterpolant.js

/**
 * @author tschw
 */

THREE.LinearInterpolant = function(
		parameterPositions, sampleValues, sampleSize, resultBuffer ) {

	THREE.Interpolant.call(
			this, parameterPositions, sampleValues, sampleSize, resultBuffer );

};

THREE.LinearInterpolant.prototype =
		Object.assign( Object.create( THREE.Interpolant.prototype ), {

	constructor: THREE.LinearInterpolant,

	interpolate_: function( i1, t0, t, t1 ) {

		var result = this.resultBuffer,
			values = this.sampleValues,
			stride = this.valueSize,

			offset1 = i1 * stride,
			offset0 = offset1 - stride,

			weight1 = ( t - t0 ) / ( t1 - t0 ),
			weight0 = 1 - weight1;

		for ( var i = 0; i !== stride; ++ i ) {

			result[ i ] =
					values[ offset0 + i ] * weight0 +
					values[ offset1 + i ] * weight1;

		}

		return result;

	}

} );

// File:src/math/interpolants/QuaternionLinearInterpolant.js

/**
 * Spherical linear unit quaternion interpolant.
 *
 * @author tschw
 */

THREE.QuaternionLinearInterpolant = function(
		parameterPositions, sampleValues, sampleSize, resultBuffer ) {

	THREE.Interpolant.call(
			this, parameterPositions, sampleValues, sampleSize, resultBuffer );

};

THREE.QuaternionLinearInterpolant.prototype =
		Object.assign( Object.create( THREE.Interpolant.prototype ), {

	constructor: THREE.QuaternionLinearInterpolant,

	interpolate_: function( i1, t0, t, t1 ) {

		var result = this.resultBuffer,
			values = this.sampleValues,
			stride = this.valueSize,

			offset = i1 * stride,

			alpha = ( t - t0 ) / ( t1 - t0 );

		for ( var end = offset + stride; offset !== end; offset += 4 ) {

			THREE.Quaternion.slerpFlat( result, 0,
					values, offset - stride, values, offset, alpha );

		}

		return result;

	}

} );

// File:src/core/Clock.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.Clock = function ( autoStart ) {

	this.autoStart = ( autoStart !== undefined ) ? autoStart : true;

	this.startTime = 0;
	this.oldTime = 0;
	this.elapsedTime = 0;

	this.running = false;

};

THREE.Clock.prototype = {

	constructor: THREE.Clock,

	start: function () {

		this.startTime = self.performance.now();

		this.oldTime = this.startTime;
		this.running = true;

	},

	stop: function () {

		this.getElapsedTime();
		this.running = false;

	},

	getElapsedTime: function () {

		this.getDelta();
		return this.elapsedTime;

	},

	getDelta: function () {

		var diff = 0;

		if ( this.autoStart && ! this.running ) {

			this.start();

		}

		if ( this.running ) {

			var newTime = self.performance.now();

			diff = 0.001 * ( newTime - this.oldTime );
			this.oldTime = newTime;

			this.elapsedTime += diff;

		}

		return diff;

	}

};

// File:src/core/EventDispatcher.js

/**
 * https://github.com/mrdoob/eventdispatcher.js/
 */

THREE.EventDispatcher = function () {};

THREE.EventDispatcher.prototype = {

	constructor: THREE.EventDispatcher,

	apply: function ( object ) {

		object.addEventListener = THREE.EventDispatcher.prototype.addEventListener;
		object.hasEventListener = THREE.EventDispatcher.prototype.hasEventListener;
		object.removeEventListener = THREE.EventDispatcher.prototype.removeEventListener;
		object.dispatchEvent = THREE.EventDispatcher.prototype.dispatchEvent;

	},

	addEventListener: function ( type, listener ) {

		if ( this._listeners === undefined ) this._listeners = {};

		var listeners = this._listeners;

		if ( listeners[ type ] === undefined ) {

			listeners[ type ] = [];

		}

		if ( listeners[ type ].indexOf( listener ) === - 1 ) {

			listeners[ type ].push( listener );

		}

	},

	hasEventListener: function ( type, listener ) {

		if ( this._listeners === undefined ) return false;

		var listeners = this._listeners;

		if ( listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1 ) {

			return true;

		}

		return false;

	},

	removeEventListener: function ( type, listener ) {

		if ( this._listeners === undefined ) return;

		var listeners = this._listeners;
		var listenerArray = listeners[ type ];

		if ( listenerArray !== undefined ) {

			var index = listenerArray.indexOf( listener );

			if ( index !== - 1 ) {

				listenerArray.splice( index, 1 );

			}

		}

	},

	dispatchEvent: function ( event ) {

		if ( this._listeners === undefined ) return;

		var listeners = this._listeners;
		var listenerArray = listeners[ event.type ];

		if ( listenerArray !== undefined ) {

			event.target = this;

			var array = [];
			var length = listenerArray.length;

			for ( var i = 0; i < length; i ++ ) {

				array[ i ] = listenerArray[ i ];

			}

			for ( var i = 0; i < length; i ++ ) {

				array[ i ].call( this, event );

			}

		}

	}

};

// File:src/core/Layers.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Layers = function () {

	this.mask = 1;

};

THREE.Layers.prototype = {

	constructor: THREE.Layers,

	set: function ( channel ) {

		this.mask = 1 << channel;

	},

	enable: function ( channel ) {

		this.mask |= 1 << channel;

	},

	toggle: function ( channel ) {

		this.mask ^= 1 << channel;

	},

	disable: function ( channel ) {

		this.mask &= ~ ( 1 << channel );

	},

	test: function ( layers ) {

		return ( this.mask & layers.mask ) !== 0;

	}

};

// File:src/core/Raycaster.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author bhouston / http://clara.io/
 * @author stephomi / http://stephaneginier.com/
 */

( function ( THREE ) {

	THREE.Raycaster = function ( origin, direction, near, far ) {

		this.ray = new THREE.Ray( origin, direction );
		// direction is assumed to be normalized (for accurate distance calculations)

		this.near = near || 0;
		this.far = far || Infinity;

		this.params = {
			Mesh: {},
			Line: {},
			LOD: {},
			Points: { threshold: 1 },
			Sprite: {}
		};

		Object.defineProperties( this.params, {
			PointCloud: {
				get: function () {
					console.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' );
					return this.Points;
				}
			}
		} );

	};

	function ascSort( a, b ) {

		return a.distance - b.distance;

	}

	function intersectObject( object, raycaster, intersects, recursive ) {

		if ( object.visible === false ) return;

		object.raycast( raycaster, intersects );

		if ( recursive === true ) {

			var children = object.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				intersectObject( children[ i ], raycaster, intersects, true );

			}

		}

	}

	//

	THREE.Raycaster.prototype = {

		constructor: THREE.Raycaster,

		linePrecision: 1,

		set: function ( origin, direction ) {

			// direction is assumed to be normalized (for accurate distance calculations)

			this.ray.set( origin, direction );

		},

		setFromCamera: function ( coords, camera ) {

			if ( camera instanceof THREE.PerspectiveCamera ) {

				this.ray.origin.setFromMatrixPosition( camera.matrixWorld );
				this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();

			} else if ( camera instanceof THREE.OrthographicCamera ) {

				this.ray.origin.set( coords.x, coords.y, - 1 ).unproject( camera );
				this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );

			} else {

				console.error( 'THREE.Raycaster: Unsupported camera type.' );

			}

		},

		intersectObject: function ( object, recursive ) {

			var intersects = [];

			intersectObject( object, this, intersects, recursive );

			intersects.sort( ascSort );

			return intersects;

		},

		intersectObjects: function ( objects, recursive ) {

			var intersects = [];

			if ( Array.isArray( objects ) === false ) {

				console.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' );
				return intersects;

			}

			for ( var i = 0, l = objects.length; i < l; i ++ ) {

				intersectObject( objects[ i ], this, intersects, recursive );

			}

			intersects.sort( ascSort );

			return intersects;

		}

	};

}( THREE ) );

// File:src/core/Object3D.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author mikael emtinger / http://gomo.se/
 * @author alteredq / http://alteredqualia.com/
 * @author WestLangley / http://github.com/WestLangley
 * @author elephantatwork / www.elephantatwork.ch
 */

THREE.Object3D = function () {

	Object.defineProperty( this, 'id', { value: THREE.Object3DIdCount ++ } );

	this.uuid = THREE.Math.generateUUID();

	this.name = '';
	this.type = 'Object3D';

	this.parent = null;
	this.children = [];

	this.up = THREE.Object3D.DefaultUp.clone();

	var position = new THREE.Vector3();
	var rotation = new THREE.Euler();
	var quaternion = new THREE.Quaternion();
	var scale = new THREE.Vector3( 1, 1, 1 );

	function onRotationChange() {

		quaternion.setFromEuler( rotation, false );

	}

	function onQuaternionChange() {

		rotation.setFromQuaternion( quaternion, undefined, false );

	}

	rotation.onChange( onRotationChange );
	quaternion.onChange( onQuaternionChange );

	Object.defineProperties( this, {
		position: {
			enumerable: true,
			value: position
		},
		rotation: {
			enumerable: true,
			value: rotation
		},
		quaternion: {
			enumerable: true,
			value: quaternion
		},
		scale: {
			enumerable: true,
			value: scale
		},
		modelViewMatrix: {
			value: new THREE.Matrix4()
		},
		normalMatrix: {
			value: new THREE.Matrix3()
		}
	} );

	this.rotationAutoUpdate = true;

	this.matrix = new THREE.Matrix4();
	this.matrixWorld = new THREE.Matrix4();

	this.matrixAutoUpdate = THREE.Object3D.DefaultMatrixAutoUpdate;
	this.matrixWorldNeedsUpdate = false;

	this.layers = new THREE.Layers();
	this.visible = true;

	this.castShadow = false;
	this.receiveShadow = false;

	this.frustumCulled = true;
	this.renderOrder = 0;

	this.userData = {};

};

THREE.Object3D.DefaultUp = new THREE.Vector3( 0, 1, 0 );
THREE.Object3D.DefaultMatrixAutoUpdate = true;

THREE.Object3D.prototype = {

	constructor: THREE.Object3D,

	applyMatrix: function ( matrix ) {

		this.matrix.multiplyMatrices( matrix, this.matrix );

		this.matrix.decompose( this.position, this.quaternion, this.scale );

	},

	setRotationFromAxisAngle: function ( axis, angle ) {

		// assumes axis is normalized

		this.quaternion.setFromAxisAngle( axis, angle );

	},

	setRotationFromEuler: function ( euler ) {

		this.quaternion.setFromEuler( euler, true );

	},

	setRotationFromMatrix: function ( m ) {

		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

		this.quaternion.setFromRotationMatrix( m );

	},

	setRotationFromQuaternion: function ( q ) {

		// assumes q is normalized

		this.quaternion.copy( q );

	},

	rotateOnAxis: function () {

		// rotate object on axis in object space
		// axis is assumed to be normalized

		var q1 = new THREE.Quaternion();

		return function ( axis, angle ) {

			q1.setFromAxisAngle( axis, angle );

			this.quaternion.multiply( q1 );

			return this;

		};

	}(),

	rotateX: function () {

		var v1 = new THREE.Vector3( 1, 0, 0 );

		return function ( angle ) {

			return this.rotateOnAxis( v1, angle );

		};

	}(),

	rotateY: function () {

		var v1 = new THREE.Vector3( 0, 1, 0 );

		return function ( angle ) {

			return this.rotateOnAxis( v1, angle );

		};

	}(),

	rotateZ: function () {

		var v1 = new THREE.Vector3( 0, 0, 1 );

		return function ( angle ) {

			return this.rotateOnAxis( v1, angle );

		};

	}(),

	translateOnAxis: function () {

		// translate object by distance along axis in object space
		// axis is assumed to be normalized

		var v1 = new THREE.Vector3();

		return function ( axis, distance ) {

			v1.copy( axis ).applyQuaternion( this.quaternion );

			this.position.add( v1.multiplyScalar( distance ) );

			return this;

		};

	}(),

	translateX: function () {

		var v1 = new THREE.Vector3( 1, 0, 0 );

		return function ( distance ) {

			return this.translateOnAxis( v1, distance );

		};

	}(),

	translateY: function () {

		var v1 = new THREE.Vector3( 0, 1, 0 );

		return function ( distance ) {

			return this.translateOnAxis( v1, distance );

		};

	}(),

	translateZ: function () {

		var v1 = new THREE.Vector3( 0, 0, 1 );

		return function ( distance ) {

			return this.translateOnAxis( v1, distance );

		};

	}(),

	localToWorld: function ( vector ) {

		return vector.applyMatrix4( this.matrixWorld );

	},

	worldToLocal: function () {

		var m1 = new THREE.Matrix4();

		return function ( vector ) {

			return vector.applyMatrix4( m1.getInverse( this.matrixWorld ) );

		};

	}(),

	lookAt: function () {

		// This routine does not support objects with rotated and/or translated parent(s)

		var m1 = new THREE.Matrix4();

		return function ( vector ) {

			m1.lookAt( vector, this.position, this.up );

			this.quaternion.setFromRotationMatrix( m1 );

		};

	}(),

	add: function ( object ) {

		if ( arguments.length > 1 ) {

			for ( var i = 0; i < arguments.length; i ++ ) {

				this.add( arguments[ i ] );

			}

			return this;

		}

		if ( object === this ) {

			console.error( "THREE.Object3D.add: object can't be added as a child of itself.", object );
			return this;

		}

		if ( object instanceof THREE.Object3D ) {

			if ( object.parent !== null ) {

				object.parent.remove( object );

			}

			object.parent = this;
			object.dispatchEvent( { type: 'added' } );

			this.children.push( object );

		} else {

			console.error( "THREE.Object3D.add: object not an instance of THREE.Object3D.", object );

		}

		return this;

	},

	remove: function ( object ) {

		if ( arguments.length > 1 ) {

			for ( var i = 0; i < arguments.length; i ++ ) {

				this.remove( arguments[ i ] );

			}

		}

		var index = this.children.indexOf( object );

		if ( index !== - 1 ) {

			object.parent = null;

			object.dispatchEvent( { type: 'removed' } );

			this.children.splice( index, 1 );

		}

	},

	getObjectById: function ( id ) {

		return this.getObjectByProperty( 'id', id );

	},

	getObjectByName: function ( name ) {

		return this.getObjectByProperty( 'name', name );

	},

	getObjectByProperty: function ( name, value ) {

		if ( this[ name ] === value ) return this;

		for ( var i = 0, l = this.children.length; i < l; i ++ ) {

			var child = this.children[ i ];
			var object = child.getObjectByProperty( name, value );

			if ( object !== undefined ) {

				return object;

			}

		}

		return undefined;

	},

	getWorldPosition: function ( optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();

		this.updateMatrixWorld( true );

		return result.setFromMatrixPosition( this.matrixWorld );

	},

	getWorldQuaternion: function () {

		var position = new THREE.Vector3();
		var scale = new THREE.Vector3();

		return function ( optionalTarget ) {

			var result = optionalTarget || new THREE.Quaternion();

			this.updateMatrixWorld( true );

			this.matrixWorld.decompose( position, result, scale );

			return result;

		};

	}(),

	getWorldRotation: function () {

		var quaternion = new THREE.Quaternion();

		return function ( optionalTarget ) {

			var result = optionalTarget || new THREE.Euler();

			this.getWorldQuaternion( quaternion );

			return result.setFromQuaternion( quaternion, this.rotation.order, false );

		};

	}(),

	getWorldScale: function () {

		var position = new THREE.Vector3();
		var quaternion = new THREE.Quaternion();

		return function ( optionalTarget ) {

			var result = optionalTarget || new THREE.Vector3();

			this.updateMatrixWorld( true );

			this.matrixWorld.decompose( position, quaternion, result );

			return result;

		};

	}(),

	getWorldDirection: function () {

		var quaternion = new THREE.Quaternion();

		return function ( optionalTarget ) {

			var result = optionalTarget || new THREE.Vector3();

			this.getWorldQuaternion( quaternion );

			return result.set( 0, 0, 1 ).applyQuaternion( quaternion );

		};

	}(),

	raycast: function () {},

	traverse: function ( callback ) {

		callback( this );

		var children = this.children;

		for ( var i = 0, l = children.length; i < l; i ++ ) {

			children[ i ].traverse( callback );

		}

	},

	traverseVisible: function ( callback ) {

		if ( this.visible === false ) return;

		callback( this );

		var children = this.children;

		for ( var i = 0, l = children.length; i < l; i ++ ) {

			children[ i ].traverseVisible( callback );

		}

	},

	traverseAncestors: function ( callback ) {

		var parent = this.parent;

		if ( parent !== null ) {

			callback( parent );

			parent.traverseAncestors( callback );

		}

	},

	updateMatrix: function () {

		this.matrix.compose( this.position, this.quaternion, this.scale );

		this.matrixWorldNeedsUpdate = true;

	},

	updateMatrixWorld: function ( force ) {

		if ( this.matrixAutoUpdate === true ) this.updateMatrix();

		if ( this.matrixWorldNeedsUpdate === true || force === true ) {

			if ( this.parent === null ) {

				this.matrixWorld.copy( this.matrix );

			} else {

				this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );

			}

			this.matrixWorldNeedsUpdate = false;

			force = true;

		}

		// update children

		for ( var i = 0, l = this.children.length; i < l; i ++ ) {

			this.children[ i ].updateMatrixWorld( force );

		}

	},

	toJSON: function ( meta ) {

		var isRootObject = ( meta === undefined );

		var output = {};

		// meta is a hash used to collect geometries, materials.
		// not providing it implies that this is the root object
		// being serialized.
		if ( isRootObject ) {

			// initialize meta obj
			meta = {
				geometries: {},
				materials: {},
				textures: {},
				images: {}
			};

			output.metadata = {
				version: 4.4,
				type: 'Object',
				generator: 'Object3D.toJSON'
			};

		}

		// standard Object3D serialization

		var object = {};

		object.uuid = this.uuid;
		object.type = this.type;

		if ( this.name !== '' ) object.name = this.name;
		if ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData;
		if ( this.castShadow === true ) object.castShadow = true;
		if ( this.receiveShadow === true ) object.receiveShadow = true;
		if ( this.visible === false ) object.visible = false;

		object.matrix = this.matrix.toArray();

		//

		if ( this.geometry !== undefined ) {

			if ( meta.geometries[ this.geometry.uuid ] === undefined ) {

				meta.geometries[ this.geometry.uuid ] = this.geometry.toJSON( meta );

			}

			object.geometry = this.geometry.uuid;

		}

		if ( this.material !== undefined ) {

			if ( meta.materials[ this.material.uuid ] === undefined ) {

				meta.materials[ this.material.uuid ] = this.material.toJSON( meta );

			}

			object.material = this.material.uuid;

		}

		//

		if ( this.children.length > 0 ) {

			object.children = [];

			for ( var i = 0; i < this.children.length; i ++ ) {

				object.children.push( this.children[ i ].toJSON( meta ).object );

			}

		}

		if ( isRootObject ) {

			var geometries = extractFromCache( meta.geometries );
			var materials = extractFromCache( meta.materials );
			var textures = extractFromCache( meta.textures );
			var images = extractFromCache( meta.images );

			if ( geometries.length > 0 ) output.geometries = geometries;
			if ( materials.length > 0 ) output.materials = materials;
			if ( textures.length > 0 ) output.textures = textures;
			if ( images.length > 0 ) output.images = images;

		}

		output.object = object;

		return output;

		// extract data from the cache hash
		// remove metadata on each item
		// and return as array
		function extractFromCache ( cache ) {

			var values = [];
			for ( var key in cache ) {

				var data = cache[ key ];
				delete data.metadata;
				values.push( data );

			}
			return values;

		}

	},

	clone: function ( recursive ) {

		return new this.constructor().copy( this, recursive );

	},

	copy: function ( source, recursive ) {

		if ( recursive === undefined ) recursive = true;

		this.name = source.name;

		this.up.copy( source.up );

		this.position.copy( source.position );
		this.quaternion.copy( source.quaternion );
		this.scale.copy( source.scale );

		this.rotationAutoUpdate = source.rotationAutoUpdate;

		this.matrix.copy( source.matrix );
		this.matrixWorld.copy( source.matrixWorld );

		this.matrixAutoUpdate = source.matrixAutoUpdate;
		this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;

		this.visible = source.visible;

		this.castShadow = source.castShadow;
		this.receiveShadow = source.receiveShadow;

		this.frustumCulled = source.frustumCulled;
		this.renderOrder = source.renderOrder;

		this.userData = JSON.parse( JSON.stringify( source.userData ) );

		if ( recursive === true ) {

			for ( var i = 0; i < source.children.length; i ++ ) {

				var child = source.children[ i ];
				this.add( child.clone() );

			}

		}

		return this;

	}

};

THREE.EventDispatcher.prototype.apply( THREE.Object3D.prototype );

THREE.Object3DIdCount = 0;

// File:src/core/Face3.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 */

THREE.Face3 = function ( a, b, c, normal, color, materialIndex ) {

	this.a = a;
	this.b = b;
	this.c = c;

	this.normal = normal instanceof THREE.Vector3 ? normal : new THREE.Vector3();
	this.vertexNormals = Array.isArray( normal ) ? normal : [];

	this.color = color instanceof THREE.Color ? color : new THREE.Color();
	this.vertexColors = Array.isArray( color ) ? color : [];

	this.materialIndex = materialIndex !== undefined ? materialIndex : 0;

};

THREE.Face3.prototype = {

	constructor: THREE.Face3,

	clone: function () {

		return new this.constructor().copy( this );

	},

	copy: function ( source ) {

		this.a = source.a;
		this.b = source.b;
		this.c = source.c;

		this.normal.copy( source.normal );
		this.color.copy( source.color );

		this.materialIndex = source.materialIndex;

		for ( var i = 0, il = source.vertexNormals.length; i < il; i ++ ) {

			this.vertexNormals[ i ] = source.vertexNormals[ i ].clone();

		}

		for ( var i = 0, il = source.vertexColors.length; i < il; i ++ ) {

			this.vertexColors[ i ] = source.vertexColors[ i ].clone();

		}

		return this;

	}

};

// File:src/core/Face4.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Face4 = function ( a, b, c, d, normal, color, materialIndex ) {

	console.warn( 'THREE.Face4 has been removed. A THREE.Face3 will be created instead.' );
	return new THREE.Face3( a, b, c, normal, color, materialIndex );

};

// File:src/core/BufferAttribute.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.BufferAttribute = function ( array, itemSize ) {

	this.uuid = THREE.Math.generateUUID();

	this.array = array;
	this.itemSize = itemSize;

	this.dynamic = false;
	this.updateRange = { offset: 0, count: - 1 };

	this.version = 0;

};

THREE.BufferAttribute.prototype = {

	constructor: THREE.BufferAttribute,

	get count() {

		return this.array.length / this.itemSize;

	},

	set needsUpdate( value ) {

		if ( value === true ) this.version ++;

	},

	setDynamic: function ( value ) {

		this.dynamic = value;

		return this;

	},

	copy: function ( source ) {

		this.array = new source.array.constructor( source.array );
		this.itemSize = source.itemSize;

		this.dynamic = source.dynamic;

		return this;

	},

	copyAt: function ( index1, attribute, index2 ) {

		index1 *= this.itemSize;
		index2 *= attribute.itemSize;

		for ( var i = 0, l = this.itemSize; i < l; i ++ ) {

			this.array[ index1 + i ] = attribute.array[ index2 + i ];

		}

		return this;

	},

	copyArray: function ( array ) {

		this.array.set( array );

		return this;

	},

	copyColorsArray: function ( colors ) {

		var array = this.array, offset = 0;

		for ( var i = 0, l = colors.length; i < l; i ++ ) {

			var color = colors[ i ];

			if ( color === undefined ) {

				console.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i );
				color = new THREE.Color();

			}

			array[ offset ++ ] = color.r;
			array[ offset ++ ] = color.g;
			array[ offset ++ ] = color.b;

		}

		return this;

	},

	copyIndicesArray: function ( indices ) {

		var array = this.array, offset = 0;

		for ( var i = 0, l = indices.length; i < l; i ++ ) {

			var index = indices[ i ];

			array[ offset ++ ] = index.a;
			array[ offset ++ ] = index.b;
			array[ offset ++ ] = index.c;

		}

		return this;

	},

	copyVector2sArray: function ( vectors ) {

		var array = this.array, offset = 0;

		for ( var i = 0, l = vectors.length; i < l; i ++ ) {

			var vector = vectors[ i ];

			if ( vector === undefined ) {

				console.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i );
				vector = new THREE.Vector2();

			}

			array[ offset ++ ] = vector.x;
			array[ offset ++ ] = vector.y;

		}

		return this;

	},

	copyVector3sArray: function ( vectors ) {

		var array = this.array, offset = 0;

		for ( var i = 0, l = vectors.length; i < l; i ++ ) {

			var vector = vectors[ i ];

			if ( vector === undefined ) {

				console.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i );
				vector = new THREE.Vector3();

			}

			array[ offset ++ ] = vector.x;
			array[ offset ++ ] = vector.y;
			array[ offset ++ ] = vector.z;

		}

		return this;

	},

	copyVector4sArray: function ( vectors ) {

		var array = this.array, offset = 0;

		for ( var i = 0, l = vectors.length; i < l; i ++ ) {

			var vector = vectors[ i ];

			if ( vector === undefined ) {

				console.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i );
				vector = new THREE.Vector4();

			}

			array[ offset ++ ] = vector.x;
			array[ offset ++ ] = vector.y;
			array[ offset ++ ] = vector.z;
			array[ offset ++ ] = vector.w;

		}

		return this;

	},

	set: function ( value, offset ) {

		if ( offset === undefined ) offset = 0;

		this.array.set( value, offset );

		return this;

	},

	getX: function ( index ) {

		return this.array[ index * this.itemSize ];

	},

	setX: function ( index, x ) {

		this.array[ index * this.itemSize ] = x;

		return this;

	},

	getY: function ( index ) {

		return this.array[ index * this.itemSize + 1 ];

	},

	setY: function ( index, y ) {

		this.array[ index * this.itemSize + 1 ] = y;

		return this;

	},

	getZ: function ( index ) {

		return this.array[ index * this.itemSize + 2 ];

	},

	setZ: function ( index, z ) {

		this.array[ index * this.itemSize + 2 ] = z;

		return this;

	},

	getW: function ( index ) {

		return this.array[ index * this.itemSize + 3 ];

	},

	setW: function ( index, w ) {

		this.array[ index * this.itemSize + 3 ] = w;

		return this;

	},

	setXY: function ( index, x, y ) {

		index *= this.itemSize;

		this.array[ index + 0 ] = x;
		this.array[ index + 1 ] = y;

		return this;

	},

	setXYZ: function ( index, x, y, z ) {

		index *= this.itemSize;

		this.array[ index + 0 ] = x;
		this.array[ index + 1 ] = y;
		this.array[ index + 2 ] = z;

		return this;

	},

	setXYZW: function ( index, x, y, z, w ) {

		index *= this.itemSize;

		this.array[ index + 0 ] = x;
		this.array[ index + 1 ] = y;
		this.array[ index + 2 ] = z;
		this.array[ index + 3 ] = w;

		return this;

	},

	clone: function () {

		return new this.constructor().copy( this );

	}

};

//

THREE.Int8Attribute = function ( array, itemSize ) {

	return new THREE.BufferAttribute( new Int8Array( array ), itemSize );

};

THREE.Uint8Attribute = function ( array, itemSize ) {

	return new THREE.BufferAttribute( new Uint8Array( array ), itemSize );

};

THREE.Uint8ClampedAttribute = function ( array, itemSize ) {

	return new THREE.BufferAttribute( new Uint8ClampedArray( array ), itemSize );

};

THREE.Int16Attribute = function ( array, itemSize ) {

	return new THREE.BufferAttribute( new Int16Array( array ), itemSize );

};

THREE.Uint16Attribute = function ( array, itemSize ) {

	return new THREE.BufferAttribute( new Uint16Array( array ), itemSize );

};

THREE.Int32Attribute = function ( array, itemSize ) {

	return new THREE.BufferAttribute( new Int32Array( array ), itemSize );

};

THREE.Uint32Attribute = function ( array, itemSize ) {

	return new THREE.BufferAttribute( new Uint32Array( array ), itemSize );

};

THREE.Float32Attribute = function ( array, itemSize ) {

	return new THREE.BufferAttribute( new Float32Array( array ), itemSize );

};

THREE.Float64Attribute = function ( array, itemSize ) {

	return new THREE.BufferAttribute( new Float64Array( array ), itemSize );

};


// Deprecated

THREE.DynamicBufferAttribute = function ( array, itemSize ) {

	console.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setDynamic( true ) instead.' );
	return new THREE.BufferAttribute( array, itemSize ).setDynamic( true );

};

// File:src/core/InstancedBufferAttribute.js

/**
 * @author benaadams / https://twitter.com/ben_a_adams
 */

THREE.InstancedBufferAttribute = function ( array, itemSize, meshPerAttribute ) {

	THREE.BufferAttribute.call( this, array, itemSize );

	this.meshPerAttribute = meshPerAttribute || 1;

};

THREE.InstancedBufferAttribute.prototype = Object.create( THREE.BufferAttribute.prototype );
THREE.InstancedBufferAttribute.prototype.constructor = THREE.InstancedBufferAttribute;

THREE.InstancedBufferAttribute.prototype.copy = function ( source ) {

	THREE.BufferAttribute.prototype.copy.call( this, source );

	this.meshPerAttribute = source.meshPerAttribute;

	return this;

};

// File:src/core/InterleavedBuffer.js

/**
 * @author benaadams / https://twitter.com/ben_a_adams
 */

THREE.InterleavedBuffer = function ( array, stride ) {

	this.uuid = THREE.Math.generateUUID();

	this.array = array;
	this.stride = stride;

	this.dynamic = false;
	this.updateRange = { offset: 0, count: - 1 };

	this.version = 0;

};

THREE.InterleavedBuffer.prototype = {

	constructor: THREE.InterleavedBuffer,

	get length () {

		return this.array.length;

	},

	get count () {

		return this.array.length / this.stride;

	},

	set needsUpdate( value ) {

		if ( value === true ) this.version ++;

	},

	setDynamic: function ( value ) {

		this.dynamic = value;

		return this;

	},

	copy: function ( source ) {

		this.array = new source.array.constructor( source.array );
		this.stride = source.stride;
		this.dynamic = source.dynamic;

		return this;

	},

	copyAt: function ( index1, attribute, index2 ) {

		index1 *= this.stride;
		index2 *= attribute.stride;

		for ( var i = 0, l = this.stride; i < l; i ++ ) {

			this.array[ index1 + i ] = attribute.array[ index2 + i ];

		}

		return this;

	},

	set: function ( value, offset ) {

		if ( offset === undefined ) offset = 0;

		this.array.set( value, offset );

		return this;

	},

	clone: function () {

		return new this.constructor().copy( this );

	}

};

// File:src/core/InstancedInterleavedBuffer.js

/**
 * @author benaadams / https://twitter.com/ben_a_adams
 */

THREE.InstancedInterleavedBuffer = function ( array, stride, meshPerAttribute ) {

	THREE.InterleavedBuffer.call( this, array, stride );

	this.meshPerAttribute = meshPerAttribute || 1;

};

THREE.InstancedInterleavedBuffer.prototype = Object.create( THREE.InterleavedBuffer.prototype );
THREE.InstancedInterleavedBuffer.prototype.constructor = THREE.InstancedInterleavedBuffer;

THREE.InstancedInterleavedBuffer.prototype.copy = function ( source ) {

	THREE.InterleavedBuffer.prototype.copy.call( this, source );

	this.meshPerAttribute = source.meshPerAttribute;

	return this;

};

// File:src/core/InterleavedBufferAttribute.js

/**
 * @author benaadams / https://twitter.com/ben_a_adams
 */

THREE.InterleavedBufferAttribute = function ( interleavedBuffer, itemSize, offset ) {

	this.uuid = THREE.Math.generateUUID();

	this.data = interleavedBuffer;
	this.itemSize = itemSize;
	this.offset = offset;

};


THREE.InterleavedBufferAttribute.prototype = {

	constructor: THREE.InterleavedBufferAttribute,

	get length() {

		console.warn( 'THREE.BufferAttribute: .length has been deprecated. Please use .count.' );
		return this.array.length;

	},

	get count() {

		return this.data.count;

	},

	setX: function ( index, x ) {

		this.data.array[ index * this.data.stride + this.offset ] = x;

		return this;

	},

	setY: function ( index, y ) {

		this.data.array[ index * this.data.stride + this.offset + 1 ] = y;

		return this;

	},

	setZ: function ( index, z ) {

		this.data.array[ index * this.data.stride + this.offset + 2 ] = z;

		return this;

	},

	setW: function ( index, w ) {

		this.data.array[ index * this.data.stride + this.offset + 3 ] = w;

		return this;

	},

	getX: function ( index ) {

		return this.data.array[ index * this.data.stride + this.offset ];

	},

	getY: function ( index ) {

		return this.data.array[ index * this.data.stride + this.offset + 1 ];

	},

	getZ: function ( index ) {

		return this.data.array[ index * this.data.stride + this.offset + 2 ];

	},

	getW: function ( index ) {

		return this.data.array[ index * this.data.stride + this.offset + 3 ];

	},

	setXY: function ( index, x, y ) {

		index = index * this.data.stride + this.offset;

		this.data.array[ index + 0 ] = x;
		this.data.array[ index + 1 ] = y;

		return this;

	},

	setXYZ: function ( index, x, y, z ) {

		index = index * this.data.stride + this.offset;

		this.data.array[ index + 0 ] = x;
		this.data.array[ index + 1 ] = y;
		this.data.array[ index + 2 ] = z;

		return this;

	},

	setXYZW: function ( index, x, y, z, w ) {

		index = index * this.data.stride + this.offset;

		this.data.array[ index + 0 ] = x;
		this.data.array[ index + 1 ] = y;
		this.data.array[ index + 2 ] = z;
		this.data.array[ index + 3 ] = w;

		return this;

	}

};

// File:src/core/Geometry.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author kile / http://kile.stravaganza.org/
 * @author alteredq / http://alteredqualia.com/
 * @author mikael emtinger / http://gomo.se/
 * @author zz85 / http://www.lab4games.net/zz85/blog
 * @author bhouston / http://clara.io
 */

THREE.Geometry = function () {

	Object.defineProperty( this, 'id', { value: THREE.GeometryIdCount ++ } );

	this.uuid = THREE.Math.generateUUID();

	this.name = '';
	this.type = 'Geometry';

	this.vertices = [];
	this.colors = [];
	this.faces = [];
	this.faceVertexUvs = [ [] ];

	this.morphTargets = [];
	this.morphNormals = [];

	this.skinWeights = [];
	this.skinIndices = [];

	this.lineDistances = [];

	this.boundingBox = null;
	this.boundingSphere = null;

	// update flags

	this.verticesNeedUpdate = false;
	this.elementsNeedUpdate = false;
	this.uvsNeedUpdate = false;
	this.normalsNeedUpdate = false;
	this.colorsNeedUpdate = false;
	this.lineDistancesNeedUpdate = false;
	this.groupsNeedUpdate = false;

};

THREE.Geometry.prototype = {

	constructor: THREE.Geometry,

	applyMatrix: function ( matrix ) {

		var normalMatrix = new THREE.Matrix3().getNormalMatrix( matrix );

		for ( var i = 0, il = this.vertices.length; i < il; i ++ ) {

			var vertex = this.vertices[ i ];
			vertex.applyMatrix4( matrix );

		}

		for ( var i = 0, il = this.faces.length; i < il; i ++ ) {

			var face = this.faces[ i ];
			face.normal.applyMatrix3( normalMatrix ).normalize();

			for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {

				face.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize();

			}

		}

		if ( this.boundingBox !== null ) {

			this.computeBoundingBox();

		}

		if ( this.boundingSphere !== null ) {

			this.computeBoundingSphere();

		}

		this.verticesNeedUpdate = true;
		this.normalsNeedUpdate = true;

	},

	rotateX: function () {

		// rotate geometry around world x-axis

		var m1;

		return function rotateX( angle ) {

			if ( m1 === undefined ) m1 = new THREE.Matrix4();

			m1.makeRotationX( angle );

			this.applyMatrix( m1 );

			return this;

		};

	}(),

	rotateY: function () {

		// rotate geometry around world y-axis

		var m1;

		return function rotateY( angle ) {

			if ( m1 === undefined ) m1 = new THREE.Matrix4();

			m1.makeRotationY( angle );

			this.applyMatrix( m1 );

			return this;

		};

	}(),

	rotateZ: function () {

		// rotate geometry around world z-axis

		var m1;

		return function rotateZ( angle ) {

			if ( m1 === undefined ) m1 = new THREE.Matrix4();

			m1.makeRotationZ( angle );

			this.applyMatrix( m1 );

			return this;

		};

	}(),

	translate: function () {

		// translate geometry

		var m1;

		return function translate( x, y, z ) {

			if ( m1 === undefined ) m1 = new THREE.Matrix4();

			m1.makeTranslation( x, y, z );

			this.applyMatrix( m1 );

			return this;

		};

	}(),

	scale: function () {

		// scale geometry

		var m1;

		return function scale( x, y, z ) {

			if ( m1 === undefined ) m1 = new THREE.Matrix4();

			m1.makeScale( x, y, z );

			this.applyMatrix( m1 );

			return this;

		};

	}(),

	lookAt: function () {

		var obj;

		return function lookAt( vector ) {

			if ( obj === undefined ) obj = new THREE.Object3D();

			obj.lookAt( vector );

			obj.updateMatrix();

			this.applyMatrix( obj.matrix );

		};

	}(),

	fromBufferGeometry: function ( geometry ) {

		var scope = this;

		var indices = geometry.index !== null ? geometry.index.array : undefined;
		var attributes = geometry.attributes;

		var positions = attributes.position.array;
		var normals = attributes.normal !== undefined ? attributes.normal.array : undefined;
		var colors = attributes.color !== undefined ? attributes.color.array : undefined;
		var uvs = attributes.uv !== undefined ? attributes.uv.array : undefined;
		var uvs2 = attributes.uv2 !== undefined ? attributes.uv2.array : undefined;

		if ( uvs2 !== undefined ) this.faceVertexUvs[ 1 ] = [];

		var tempNormals = [];
		var tempUVs = [];
		var tempUVs2 = [];

		for ( var i = 0, j = 0; i < positions.length; i += 3, j += 2 ) {

			scope.vertices.push( new THREE.Vector3( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] ) );

			if ( normals !== undefined ) {

				tempNormals.push( new THREE.Vector3( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] ) );

			}

			if ( colors !== undefined ) {

				scope.colors.push( new THREE.Color( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] ) );

			}

			if ( uvs !== undefined ) {

				tempUVs.push( new THREE.Vector2( uvs[ j ], uvs[ j + 1 ] ) );

			}

			if ( uvs2 !== undefined ) {

				tempUVs2.push( new THREE.Vector2( uvs2[ j ], uvs2[ j + 1 ] ) );

			}

		}

		function addFace( a, b, c ) {

			var vertexNormals = normals !== undefined ? [ tempNormals[ a ].clone(), tempNormals[ b ].clone(), tempNormals[ c ].clone() ] : [];
			var vertexColors = colors !== undefined ? [ scope.colors[ a ].clone(), scope.colors[ b ].clone(), scope.colors[ c ].clone() ] : [];

			var face = new THREE.Face3( a, b, c, vertexNormals, vertexColors );

			scope.faces.push( face );

			if ( uvs !== undefined ) {

				scope.faceVertexUvs[ 0 ].push( [ tempUVs[ a ].clone(), tempUVs[ b ].clone(), tempUVs[ c ].clone() ] );

			}

			if ( uvs2 !== undefined ) {

				scope.faceVertexUvs[ 1 ].push( [ tempUVs2[ a ].clone(), tempUVs2[ b ].clone(), tempUVs2[ c ].clone() ] );

			}

		}

		if ( indices !== undefined ) {

			var groups = geometry.groups;

			if ( groups.length > 0 ) {

				for ( var i = 0; i < groups.length; i ++ ) {

					var group = groups[ i ];

					var start = group.start;
					var count = group.count;

					for ( var j = start, jl = start + count; j < jl; j += 3 ) {

						addFace( indices[ j ], indices[ j + 1 ], indices[ j + 2 ] );

					}

				}

			} else {

				for ( var i = 0; i < indices.length; i += 3 ) {

					addFace( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] );

				}

			}

		} else {

			for ( var i = 0; i < positions.length / 3; i += 3 ) {

				addFace( i, i + 1, i + 2 );

			}

		}

		this.computeFaceNormals();

		if ( geometry.boundingBox !== null ) {

			this.boundingBox = geometry.boundingBox.clone();

		}

		if ( geometry.boundingSphere !== null ) {

			this.boundingSphere = geometry.boundingSphere.clone();

		}

		return this;

	},

	center: function () {

		this.computeBoundingBox();

		var offset = this.boundingBox.center().negate();

		this.translate( offset.x, offset.y, offset.z );

		return offset;

	},

	normalize: function () {

		this.computeBoundingSphere();

		var center = this.boundingSphere.center;
		var radius = this.boundingSphere.radius;

		var s = radius === 0 ? 1 : 1.0 / radius;

		var matrix = new THREE.Matrix4();
		matrix.set(
			s, 0, 0, - s * center.x,
			0, s, 0, - s * center.y,
			0, 0, s, - s * center.z,
			0, 0, 0, 1
		);

		this.applyMatrix( matrix );

		return this;

	},

	computeFaceNormals: function () {

		var cb = new THREE.Vector3(), ab = new THREE.Vector3();

		for ( var f = 0, fl = this.faces.length; f < fl; f ++ ) {

			var face = this.faces[ f ];

			var vA = this.vertices[ face.a ];
			var vB = this.vertices[ face.b ];
			var vC = this.vertices[ face.c ];

			cb.subVectors( vC, vB );
			ab.subVectors( vA, vB );
			cb.cross( ab );

			cb.normalize();

			face.normal.copy( cb );

		}

	},

	computeVertexNormals: function ( areaWeighted ) {

		var v, vl, f, fl, face, vertices;

		vertices = new Array( this.vertices.length );

		for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {

			vertices[ v ] = new THREE.Vector3();

		}

		if ( areaWeighted ) {

			// vertex normals weighted by triangle areas
			// http://www.iquilezles.org/www/articles/normals/normals.htm

			var vA, vB, vC;
			var cb = new THREE.Vector3(), ab = new THREE.Vector3();

			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

				face = this.faces[ f ];

				vA = this.vertices[ face.a ];
				vB = this.vertices[ face.b ];
				vC = this.vertices[ face.c ];

				cb.subVectors( vC, vB );
				ab.subVectors( vA, vB );
				cb.cross( ab );

				vertices[ face.a ].add( cb );
				vertices[ face.b ].add( cb );
				vertices[ face.c ].add( cb );

			}

		} else {

			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

				face = this.faces[ f ];

				vertices[ face.a ].add( face.normal );
				vertices[ face.b ].add( face.normal );
				vertices[ face.c ].add( face.normal );

			}

		}

		for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {

			vertices[ v ].normalize();

		}

		for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

			face = this.faces[ f ];

			var vertexNormals = face.vertexNormals;

			if ( vertexNormals.length === 3 ) {

				vertexNormals[ 0 ].copy( vertices[ face.a ] );
				vertexNormals[ 1 ].copy( vertices[ face.b ] );
				vertexNormals[ 2 ].copy( vertices[ face.c ] );

			} else {

				vertexNormals[ 0 ] = vertices[ face.a ].clone();
				vertexNormals[ 1 ] = vertices[ face.b ].clone();
				vertexNormals[ 2 ] = vertices[ face.c ].clone();

			}

		}

	},

	computeMorphNormals: function () {

		var i, il, f, fl, face;

		// save original normals
		// - create temp variables on first access
		//   otherwise just copy (for faster repeated calls)

		for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

			face = this.faces[ f ];

			if ( ! face.__originalFaceNormal ) {

				face.__originalFaceNormal = face.normal.clone();

			} else {

				face.__originalFaceNormal.copy( face.normal );

			}

			if ( ! face.__originalVertexNormals ) face.__originalVertexNormals = [];

			for ( i = 0, il = face.vertexNormals.length; i < il; i ++ ) {

				if ( ! face.__originalVertexNormals[ i ] ) {

					face.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone();

				} else {

					face.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] );

				}

			}

		}

		// use temp geometry to compute face and vertex normals for each morph

		var tmpGeo = new THREE.Geometry();
		tmpGeo.faces = this.faces;

		for ( i = 0, il = this.morphTargets.length; i < il; i ++ ) {

			// create on first access

			if ( ! this.morphNormals[ i ] ) {

				this.morphNormals[ i ] = {};
				this.morphNormals[ i ].faceNormals = [];
				this.morphNormals[ i ].vertexNormals = [];

				var dstNormalsFace = this.morphNormals[ i ].faceNormals;
				var dstNormalsVertex = this.morphNormals[ i ].vertexNormals;

				var faceNormal, vertexNormals;

				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

					faceNormal = new THREE.Vector3();
					vertexNormals = { a: new THREE.Vector3(), b: new THREE.Vector3(), c: new THREE.Vector3() };

					dstNormalsFace.push( faceNormal );
					dstNormalsVertex.push( vertexNormals );

				}

			}

			var morphNormals = this.morphNormals[ i ];

			// set vertices to morph target

			tmpGeo.vertices = this.morphTargets[ i ].vertices;

			// compute morph normals

			tmpGeo.computeFaceNormals();
			tmpGeo.computeVertexNormals();

			// store morph normals

			var faceNormal, vertexNormals;

			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

				face = this.faces[ f ];

				faceNormal = morphNormals.faceNormals[ f ];
				vertexNormals = morphNormals.vertexNormals[ f ];

				faceNormal.copy( face.normal );

				vertexNormals.a.copy( face.vertexNormals[ 0 ] );
				vertexNormals.b.copy( face.vertexNormals[ 1 ] );
				vertexNormals.c.copy( face.vertexNormals[ 2 ] );

			}

		}

		// restore original normals

		for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

			face = this.faces[ f ];

			face.normal = face.__originalFaceNormal;
			face.vertexNormals = face.__originalVertexNormals;

		}

	},

	computeTangents: function () {

		console.warn( 'THREE.Geometry: .computeTangents() has been removed.' );

	},

	computeLineDistances: function () {

		var d = 0;
		var vertices = this.vertices;

		for ( var i = 0, il = vertices.length; i < il; i ++ ) {

			if ( i > 0 ) {

				d += vertices[ i ].distanceTo( vertices[ i - 1 ] );

			}

			this.lineDistances[ i ] = d;

		}

	},

	computeBoundingBox: function () {

		if ( this.boundingBox === null ) {

			this.boundingBox = new THREE.Box3();

		}

		this.boundingBox.setFromPoints( this.vertices );

	},

	computeBoundingSphere: function () {

		if ( this.boundingSphere === null ) {

			this.boundingSphere = new THREE.Sphere();

		}

		this.boundingSphere.setFromPoints( this.vertices );

	},

	merge: function ( geometry, matrix, materialIndexOffset ) {

		if ( geometry instanceof THREE.Geometry === false ) {

			console.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry );
			return;

		}

		var normalMatrix,
		vertexOffset = this.vertices.length,
		vertices1 = this.vertices,
		vertices2 = geometry.vertices,
		faces1 = this.faces,
		faces2 = geometry.faces,
		uvs1 = this.faceVertexUvs[ 0 ],
		uvs2 = geometry.faceVertexUvs[ 0 ];

		if ( materialIndexOffset === undefined ) materialIndexOffset = 0;

		if ( matrix !== undefined ) {

			normalMatrix = new THREE.Matrix3().getNormalMatrix( matrix );

		}

		// vertices

		for ( var i = 0, il = vertices2.length; i < il; i ++ ) {

			var vertex = vertices2[ i ];

			var vertexCopy = vertex.clone();

			if ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix );

			vertices1.push( vertexCopy );

		}

		// faces

		for ( i = 0, il = faces2.length; i < il; i ++ ) {

			var face = faces2[ i ], faceCopy, normal, color,
			faceVertexNormals = face.vertexNormals,
			faceVertexColors = face.vertexColors;

			faceCopy = new THREE.Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset );
			faceCopy.normal.copy( face.normal );

			if ( normalMatrix !== undefined ) {

				faceCopy.normal.applyMatrix3( normalMatrix ).normalize();

			}

			for ( var j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) {

				normal = faceVertexNormals[ j ].clone();

				if ( normalMatrix !== undefined ) {

					normal.applyMatrix3( normalMatrix ).normalize();

				}

				faceCopy.vertexNormals.push( normal );

			}

			faceCopy.color.copy( face.color );

			for ( var j = 0, jl = faceVertexColors.length; j < jl; j ++ ) {

				color = faceVertexColors[ j ];
				faceCopy.vertexColors.push( color.clone() );

			}

			faceCopy.materialIndex = face.materialIndex + materialIndexOffset;

			faces1.push( faceCopy );

		}

		// uvs

		for ( i = 0, il = uvs2.length; i < il; i ++ ) {

			var uv = uvs2[ i ], uvCopy = [];

			if ( uv === undefined ) {

				continue;

			}

			for ( var j = 0, jl = uv.length; j < jl; j ++ ) {

				uvCopy.push( uv[ j ].clone() );

			}

			uvs1.push( uvCopy );

		}

	},

	mergeMesh: function ( mesh ) {

		if ( mesh instanceof THREE.Mesh === false ) {

			console.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh );
			return;

		}

		mesh.matrixAutoUpdate && mesh.updateMatrix();

		this.merge( mesh.geometry, mesh.matrix );

	},

	/*
	 * Checks for duplicate vertices with hashmap.
	 * Duplicated vertices are removed
	 * and faces' vertices are updated.
	 */

	mergeVertices: function () {

		var verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique)
		var unique = [], changes = [];

		var v, key;
		var precisionPoints = 4; // number of decimal points, e.g. 4 for epsilon of 0.0001
		var precision = Math.pow( 10, precisionPoints );
		var i, il, face;
		var indices, j, jl;

		for ( i = 0, il = this.vertices.length; i < il; i ++ ) {

			v = this.vertices[ i ];
			key = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision );

			if ( verticesMap[ key ] === undefined ) {

				verticesMap[ key ] = i;
				unique.push( this.vertices[ i ] );
				changes[ i ] = unique.length - 1;

			} else {

				//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);
				changes[ i ] = changes[ verticesMap[ key ] ];

			}

		}


		// if faces are completely degenerate after merging vertices, we
		// have to remove them from the geometry.
		var faceIndicesToRemove = [];

		for ( i = 0, il = this.faces.length; i < il; i ++ ) {

			face = this.faces[ i ];

			face.a = changes[ face.a ];
			face.b = changes[ face.b ];
			face.c = changes[ face.c ];

			indices = [ face.a, face.b, face.c ];

			var dupIndex = - 1;

			// if any duplicate vertices are found in a Face3
			// we have to remove the face as nothing can be saved
			for ( var n = 0; n < 3; n ++ ) {

				if ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) {

					dupIndex = n;
					faceIndicesToRemove.push( i );
					break;

				}

			}

		}

		for ( i = faceIndicesToRemove.length - 1; i >= 0; i -- ) {

			var idx = faceIndicesToRemove[ i ];

			this.faces.splice( idx, 1 );

			for ( j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) {

				this.faceVertexUvs[ j ].splice( idx, 1 );

			}

		}

		// Use unique set of vertices

		var diff = this.vertices.length - unique.length;
		this.vertices = unique;
		return diff;

	},

	sortFacesByMaterialIndex: function () {

		var faces = this.faces;
		var length = faces.length;

		// tag faces

		for ( var i = 0; i < length; i ++ ) {

			faces[ i ]._id = i;

		}

		// sort faces

		function materialIndexSort( a, b ) {

			return a.materialIndex - b.materialIndex;

		}

		faces.sort( materialIndexSort );

		// sort uvs

		var uvs1 = this.faceVertexUvs[ 0 ];
		var uvs2 = this.faceVertexUvs[ 1 ];

		var newUvs1, newUvs2;

		if ( uvs1 && uvs1.length === length ) newUvs1 = [];
		if ( uvs2 && uvs2.length === length ) newUvs2 = [];

		for ( var i = 0; i < length; i ++ ) {

			var id = faces[ i ]._id;

			if ( newUvs1 ) newUvs1.push( uvs1[ id ] );
			if ( newUvs2 ) newUvs2.push( uvs2[ id ] );

		}

		if ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1;
		if ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2;

	},

	toJSON: function () {

		var data = {
			metadata: {
				version: 4.4,
				type: 'Geometry',
				generator: 'Geometry.toJSON'
			}
		};

		// standard Geometry serialization

		data.uuid = this.uuid;
		data.type = this.type;
		if ( this.name !== '' ) data.name = this.name;

		if ( this.parameters !== undefined ) {

			var parameters = this.parameters;

			for ( var key in parameters ) {

				if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];

			}

			return data;

		}

		var vertices = [];

		for ( var i = 0; i < this.vertices.length; i ++ ) {

			var vertex = this.vertices[ i ];
			vertices.push( vertex.x, vertex.y, vertex.z );

		}

		var faces = [];
		var normals = [];
		var normalsHash = {};
		var colors = [];
		var colorsHash = {};
		var uvs = [];
		var uvsHash = {};

		for ( var i = 0; i < this.faces.length; i ++ ) {

			var face = this.faces[ i ];

			var hasMaterial = true;
			var hasFaceUv = false; // deprecated
			var hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined;
			var hasFaceNormal = face.normal.length() > 0;
			var hasFaceVertexNormal = face.vertexNormals.length > 0;
			var hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1;
			var hasFaceVertexColor = face.vertexColors.length > 0;

			var faceType = 0;

			faceType = setBit( faceType, 0, 0 ); // isQuad
			faceType = setBit( faceType, 1, hasMaterial );
			faceType = setBit( faceType, 2, hasFaceUv );
			faceType = setBit( faceType, 3, hasFaceVertexUv );
			faceType = setBit( faceType, 4, hasFaceNormal );
			faceType = setBit( faceType, 5, hasFaceVertexNormal );
			faceType = setBit( faceType, 6, hasFaceColor );
			faceType = setBit( faceType, 7, hasFaceVertexColor );

			faces.push( faceType );
			faces.push( face.a, face.b, face.c );
			faces.push( face.materialIndex );

			if ( hasFaceVertexUv ) {

				var faceVertexUvs = this.faceVertexUvs[ 0 ][ i ];

				faces.push(
					getUvIndex( faceVertexUvs[ 0 ] ),
					getUvIndex( faceVertexUvs[ 1 ] ),
					getUvIndex( faceVertexUvs[ 2 ] )
				);

			}

			if ( hasFaceNormal ) {

				faces.push( getNormalIndex( face.normal ) );

			}

			if ( hasFaceVertexNormal ) {

				var vertexNormals = face.vertexNormals;

				faces.push(
					getNormalIndex( vertexNormals[ 0 ] ),
					getNormalIndex( vertexNormals[ 1 ] ),
					getNormalIndex( vertexNormals[ 2 ] )
				);

			}

			if ( hasFaceColor ) {

				faces.push( getColorIndex( face.color ) );

			}

			if ( hasFaceVertexColor ) {

				var vertexColors = face.vertexColors;

				faces.push(
					getColorIndex( vertexColors[ 0 ] ),
					getColorIndex( vertexColors[ 1 ] ),
					getColorIndex( vertexColors[ 2 ] )
				);

			}

		}

		function setBit( value, position, enabled ) {

			return enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) );

		}

		function getNormalIndex( normal ) {

			var hash = normal.x.toString() + normal.y.toString() + normal.z.toString();

			if ( normalsHash[ hash ] !== undefined ) {

				return normalsHash[ hash ];

			}

			normalsHash[ hash ] = normals.length / 3;
			normals.push( normal.x, normal.y, normal.z );

			return normalsHash[ hash ];

		}

		function getColorIndex( color ) {

			var hash = color.r.toString() + color.g.toString() + color.b.toString();

			if ( colorsHash[ hash ] !== undefined ) {

				return colorsHash[ hash ];

			}

			colorsHash[ hash ] = colors.length;
			colors.push( color.getHex() );

			return colorsHash[ hash ];

		}

		function getUvIndex( uv ) {

			var hash = uv.x.toString() + uv.y.toString();

			if ( uvsHash[ hash ] !== undefined ) {

				return uvsHash[ hash ];

			}

			uvsHash[ hash ] = uvs.length / 2;
			uvs.push( uv.x, uv.y );

			return uvsHash[ hash ];

		}

		data.data = {};

		data.data.vertices = vertices;
		data.data.normals = normals;
		if ( colors.length > 0 ) data.data.colors = colors;
		if ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility
		data.data.faces = faces;

		return data;

	},

	clone: function () {

		/*
		// Handle primitives

		var parameters = this.parameters;

		if ( parameters !== undefined ) {

			var values = [];

			for ( var key in parameters ) {

				values.push( parameters[ key ] );

			}

			var geometry = Object.create( this.constructor.prototype );
			this.constructor.apply( geometry, values );
			return geometry;

		}

		return new this.constructor().copy( this );
		*/

		return new THREE.Geometry().copy( this );

	},

	copy: function ( source ) {

		this.vertices = [];
		this.faces = [];
		this.faceVertexUvs = [ [] ];

		var vertices = source.vertices;

		for ( var i = 0, il = vertices.length; i < il; i ++ ) {

			this.vertices.push( vertices[ i ].clone() );

		}

		var faces = source.faces;

		for ( var i = 0, il = faces.length; i < il; i ++ ) {

			this.faces.push( faces[ i ].clone() );

		}

		for ( var i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) {

			var faceVertexUvs = source.faceVertexUvs[ i ];

			if ( this.faceVertexUvs[ i ] === undefined ) {

				this.faceVertexUvs[ i ] = [];

			}

			for ( var j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) {

				var uvs = faceVertexUvs[ j ], uvsCopy = [];

				for ( var k = 0, kl = uvs.length; k < kl; k ++ ) {

					var uv = uvs[ k ];

					uvsCopy.push( uv.clone() );

				}

				this.faceVertexUvs[ i ].push( uvsCopy );

			}

		}

		return this;

	},

	dispose: function () {

		this.dispatchEvent( { type: 'dispose' } );

	}

};

THREE.EventDispatcher.prototype.apply( THREE.Geometry.prototype );

THREE.GeometryIdCount = 0;

// File:src/core/DirectGeometry.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.DirectGeometry = function () {

	Object.defineProperty( this, 'id', { value: THREE.GeometryIdCount ++ } );

	this.uuid = THREE.Math.generateUUID();

	this.name = '';
	this.type = 'DirectGeometry';

	this.indices = [];
	this.vertices = [];
	this.normals = [];
	this.colors = [];
	this.uvs = [];
	this.uvs2 = [];

	this.groups = [];

	this.morphTargets = {};

	this.skinWeights = [];
	this.skinIndices = [];

	// this.lineDistances = [];

	this.boundingBox = null;
	this.boundingSphere = null;

	// update flags

	this.verticesNeedUpdate = false;
	this.normalsNeedUpdate = false;
	this.colorsNeedUpdate = false;
	this.uvsNeedUpdate = false;
	this.groupsNeedUpdate = false;

};

THREE.DirectGeometry.prototype = {

	constructor: THREE.DirectGeometry,

	computeBoundingBox: THREE.Geometry.prototype.computeBoundingBox,
	computeBoundingSphere: THREE.Geometry.prototype.computeBoundingSphere,

	computeFaceNormals: function () {

		console.warn( 'THREE.DirectGeometry: computeFaceNormals() is not a method of this type of geometry.' );

	},

	computeVertexNormals: function () {

		console.warn( 'THREE.DirectGeometry: computeVertexNormals() is not a method of this type of geometry.' );

	},

	computeGroups: function ( geometry ) {

		var group;
		var groups = [];
		var materialIndex;

		var faces = geometry.faces;

		for ( var i = 0; i < faces.length; i ++ ) {

			var face = faces[ i ];

			// materials

			if ( face.materialIndex !== materialIndex ) {

				materialIndex = face.materialIndex;

				if ( group !== undefined ) {

					group.count = ( i * 3 ) - group.start;
					groups.push( group );

				}

				group = {
					start: i * 3,
					materialIndex: materialIndex
				};

			}

		}

		if ( group !== undefined ) {

			group.count = ( i * 3 ) - group.start;
			groups.push( group );

		}

		this.groups = groups;

	},

	fromGeometry: function ( geometry ) {

		var faces = geometry.faces;
		var vertices = geometry.vertices;
		var faceVertexUvs = geometry.faceVertexUvs;

		var hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0;
		var hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0;

		// morphs

		var morphTargets = geometry.morphTargets;
		var morphTargetsLength = morphTargets.length;

		var morphTargetsPosition;

		if ( morphTargetsLength > 0 ) {

			morphTargetsPosition = [];

			for ( var i = 0; i < morphTargetsLength; i ++ ) {

				morphTargetsPosition[ i ] = [];

			}

			this.morphTargets.position = morphTargetsPosition;

		}

		var morphNormals = geometry.morphNormals;
		var morphNormalsLength = morphNormals.length;

		var morphTargetsNormal;

		if ( morphNormalsLength > 0 ) {

			morphTargetsNormal = [];

			for ( var i = 0; i < morphNormalsLength; i ++ ) {

				morphTargetsNormal[ i ] = [];

			}

			this.morphTargets.normal = morphTargetsNormal;

		}

		// skins

		var skinIndices = geometry.skinIndices;
		var skinWeights = geometry.skinWeights;

		var hasSkinIndices = skinIndices.length === vertices.length;
		var hasSkinWeights = skinWeights.length === vertices.length;

		//

		for ( var i = 0; i < faces.length; i ++ ) {

			var face = faces[ i ];

			this.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] );

			var vertexNormals = face.vertexNormals;

			if ( vertexNormals.length === 3 ) {

				this.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] );

			} else {

				var normal = face.normal;

				this.normals.push( normal, normal, normal );

			}

			var vertexColors = face.vertexColors;

			if ( vertexColors.length === 3 ) {

				this.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] );

			} else {

				var color = face.color;

				this.colors.push( color, color, color );

			}

			if ( hasFaceVertexUv === true ) {

				var vertexUvs = faceVertexUvs[ 0 ][ i ];

				if ( vertexUvs !== undefined ) {

					this.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );

				} else {

					console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i );

					this.uvs.push( new THREE.Vector2(), new THREE.Vector2(), new THREE.Vector2() );

				}

			}

			if ( hasFaceVertexUv2 === true ) {

				var vertexUvs = faceVertexUvs[ 1 ][ i ];

				if ( vertexUvs !== undefined ) {

					this.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );

				} else {

					console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i );

					this.uvs2.push( new THREE.Vector2(), new THREE.Vector2(), new THREE.Vector2() );

				}

			}

			// morphs

			for ( var j = 0; j < morphTargetsLength; j ++ ) {

				var morphTarget = morphTargets[ j ].vertices;

				morphTargetsPosition[ j ].push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] );

			}

			for ( var j = 0; j < morphNormalsLength; j ++ ) {

				var morphNormal = morphNormals[ j ].vertexNormals[ i ];

				morphTargetsNormal[ j ].push( morphNormal.a, morphNormal.b, morphNormal.c );

			}

			// skins

			if ( hasSkinIndices ) {

				this.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] );

			}

			if ( hasSkinWeights ) {

				this.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] );

			}

		}

		this.computeGroups( geometry );

		this.verticesNeedUpdate = geometry.verticesNeedUpdate;
		this.normalsNeedUpdate = geometry.normalsNeedUpdate;
		this.colorsNeedUpdate = geometry.colorsNeedUpdate;
		this.uvsNeedUpdate = geometry.uvsNeedUpdate;
		this.groupsNeedUpdate = geometry.groupsNeedUpdate;

		return this;

	},

	dispose: function () {

		this.dispatchEvent( { type: 'dispose' } );

	}

};

THREE.EventDispatcher.prototype.apply( THREE.DirectGeometry.prototype );

// File:src/core/BufferGeometry.js

/**
 * @author alteredq / http://alteredqualia.com/
 * @author mrdoob / http://mrdoob.com/
 */

THREE.BufferGeometry = function () {

	Object.defineProperty( this, 'id', { value: THREE.GeometryIdCount ++ } );

	this.uuid = THREE.Math.generateUUID();

	this.name = '';
	this.type = 'BufferGeometry';

	this.index = null;
	this.attributes = {};

	this.morphAttributes = {};

	this.groups = [];

	this.boundingBox = null;
	this.boundingSphere = null;

	this.drawRange = { start: 0, count: Infinity };

};

THREE.BufferGeometry.prototype = {

	constructor: THREE.BufferGeometry,

	getIndex: function () {

		return this.index;

	},

	setIndex: function ( index ) {

		this.index = index;

	},

	addAttribute: function ( name, attribute ) {

		if ( attribute instanceof THREE.BufferAttribute === false && attribute instanceof THREE.InterleavedBufferAttribute === false ) {

			console.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' );

			this.addAttribute( name, new THREE.BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) );

			return;

		}

		if ( name === 'index' ) {

			console.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' );
			this.setIndex( attribute );

			return;

		}

		this.attributes[ name ] = attribute;

	},

	getAttribute: function ( name ) {

		return this.attributes[ name ];

	},

	removeAttribute: function ( name ) {

		delete this.attributes[ name ];

	},

	addGroup: function ( start, count, materialIndex ) {

		this.groups.push( {

			start: start,
			count: count,
			materialIndex: materialIndex !== undefined ? materialIndex : 0

		} );

	},

	clearGroups: function () {

		this.groups = [];

	},

	setDrawRange: function ( start, count ) {

		this.drawRange.start = start;
		this.drawRange.count = count;

	},

	applyMatrix: function ( matrix ) {

		var position = this.attributes.position;

		if ( position !== undefined ) {

			matrix.applyToVector3Array( position.array );
			position.needsUpdate = true;

		}

		var normal = this.attributes.normal;

		if ( normal !== undefined ) {

			var normalMatrix = new THREE.Matrix3().getNormalMatrix( matrix );

			normalMatrix.applyToVector3Array( normal.array );
			normal.needsUpdate = true;

		}

		if ( this.boundingBox !== null ) {

			this.computeBoundingBox();

		}

		if ( this.boundingSphere !== null ) {

			this.computeBoundingSphere();

		}

	},

	rotateX: function () {

		// rotate geometry around world x-axis

		var m1;

		return function rotateX( angle ) {

			if ( m1 === undefined ) m1 = new THREE.Matrix4();

			m1.makeRotationX( angle );

			this.applyMatrix( m1 );

			return this;

		};

	}(),

	rotateY: function () {

		// rotate geometry around world y-axis

		var m1;

		return function rotateY( angle ) {

			if ( m1 === undefined ) m1 = new THREE.Matrix4();

			m1.makeRotationY( angle );

			this.applyMatrix( m1 );

			return this;

		};

	}(),

	rotateZ: function () {

		// rotate geometry around world z-axis

		var m1;

		return function rotateZ( angle ) {

			if ( m1 === undefined ) m1 = new THREE.Matrix4();

			m1.makeRotationZ( angle );

			this.applyMatrix( m1 );

			return this;

		};

	}(),

	translate: function () {

		// translate geometry

		var m1;

		return function translate( x, y, z ) {

			if ( m1 === undefined ) m1 = new THREE.Matrix4();

			m1.makeTranslation( x, y, z );

			this.applyMatrix( m1 );

			return this;

		};

	}(),

	scale: function () {

		// scale geometry

		var m1;

		return function scale( x, y, z ) {

			if ( m1 === undefined ) m1 = new THREE.Matrix4();

			m1.makeScale( x, y, z );

			this.applyMatrix( m1 );

			return this;

		};

	}(),

	lookAt: function () {

		var obj;

		return function lookAt( vector ) {

			if ( obj === undefined ) obj = new THREE.Object3D();

			obj.lookAt( vector );

			obj.updateMatrix();

			this.applyMatrix( obj.matrix );

		};

	}(),

	center: function () {

		this.computeBoundingBox();

		var offset = this.boundingBox.center().negate();

		this.translate( offset.x, offset.y, offset.z );

		return offset;

	},

	setFromObject: function ( object ) {

		// console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this );

		var geometry = object.geometry;

		if ( object instanceof THREE.Points || object instanceof THREE.Line ) {

			var positions = new THREE.Float32Attribute( geometry.vertices.length * 3, 3 );
			var colors = new THREE.Float32Attribute( geometry.colors.length * 3, 3 );

			this.addAttribute( 'position', positions.copyVector3sArray( geometry.vertices ) );
			this.addAttribute( 'color', colors.copyColorsArray( geometry.colors ) );

			if ( geometry.lineDistances && geometry.lineDistances.length === geometry.vertices.length ) {

				var lineDistances = new THREE.Float32Attribute( geometry.lineDistances.length, 1 );

				this.addAttribute( 'lineDistance', lineDistances.copyArray( geometry.lineDistances ) );

			}

			if ( geometry.boundingSphere !== null ) {

				this.boundingSphere = geometry.boundingSphere.clone();

			}

			if ( geometry.boundingBox !== null ) {

				this.boundingBox = geometry.boundingBox.clone();

			}

		} else if ( object instanceof THREE.Mesh ) {

			if ( geometry instanceof THREE.Geometry ) {

				this.fromGeometry( geometry );

			}

		}

		return this;

	},

	updateFromObject: function ( object ) {

		var geometry = object.geometry;

		if ( object instanceof THREE.Mesh ) {

			var direct = geometry.__directGeometry;

			if ( direct === undefined ) {

				return this.fromGeometry( geometry );

			}

			direct.verticesNeedUpdate = geometry.verticesNeedUpdate;
			direct.normalsNeedUpdate = geometry.normalsNeedUpdate;
			direct.colorsNeedUpdate = geometry.colorsNeedUpdate;
			direct.uvsNeedUpdate = geometry.uvsNeedUpdate;
			direct.groupsNeedUpdate = geometry.groupsNeedUpdate;

			geometry.verticesNeedUpdate = false;
			geometry.normalsNeedUpdate = false;
			geometry.colorsNeedUpdate = false;
			geometry.uvsNeedUpdate = false;
			geometry.groupsNeedUpdate = false;

			geometry = direct;

		}

		if ( geometry.verticesNeedUpdate === true ) {

			var attribute = this.attributes.position;

			if ( attribute !== undefined ) {

				attribute.copyVector3sArray( geometry.vertices );
				attribute.needsUpdate = true;

			}

			geometry.verticesNeedUpdate = false;

		}

		if ( geometry.normalsNeedUpdate === true ) {

			var attribute = this.attributes.normal;

			if ( attribute !== undefined ) {

				attribute.copyVector3sArray( geometry.normals );
				attribute.needsUpdate = true;

			}

			geometry.normalsNeedUpdate = false;

		}

		if ( geometry.colorsNeedUpdate === true ) {

			var attribute = this.attributes.color;

			if ( attribute !== undefined ) {

				attribute.copyColorsArray( geometry.colors );
				attribute.needsUpdate = true;

			}

			geometry.colorsNeedUpdate = false;

		}

		if ( geometry.uvsNeedUpdate ) {

			var attribute = this.attributes.uv;

			if ( attribute !== undefined ) {

				attribute.copyVector2sArray( geometry.uvs );
				attribute.needsUpdate = true;

			}

			geometry.uvsNeedUpdate = false;

		}

		if ( geometry.lineDistancesNeedUpdate ) {

			var attribute = this.attributes.lineDistance;

			if ( attribute !== undefined ) {

				attribute.copyArray( geometry.lineDistances );
				attribute.needsUpdate = true;

			}

			geometry.lineDistancesNeedUpdate = false;

		}

		if ( geometry.groupsNeedUpdate ) {

			geometry.computeGroups( object.geometry );
			this.groups = geometry.groups;

			geometry.groupsNeedUpdate = false;

		}

		return this;

	},

	fromGeometry: function ( geometry ) {

		geometry.__directGeometry = new THREE.DirectGeometry().fromGeometry( geometry );

		return this.fromDirectGeometry( geometry.__directGeometry );

	},

	fromDirectGeometry: function ( geometry ) {

		var positions = new Float32Array( geometry.vertices.length * 3 );
		this.addAttribute( 'position', new THREE.BufferAttribute( positions, 3 ).copyVector3sArray( geometry.vertices ) );

		if ( geometry.normals.length > 0 ) {

			var normals = new Float32Array( geometry.normals.length * 3 );
			this.addAttribute( 'normal', new THREE.BufferAttribute( normals, 3 ).copyVector3sArray( geometry.normals ) );

		}

		if ( geometry.colors.length > 0 ) {

			var colors = new Float32Array( geometry.colors.length * 3 );
			this.addAttribute( 'color', new THREE.BufferAttribute( colors, 3 ).copyColorsArray( geometry.colors ) );

		}

		if ( geometry.uvs.length > 0 ) {

			var uvs = new Float32Array( geometry.uvs.length * 2 );
			this.addAttribute( 'uv', new THREE.BufferAttribute( uvs, 2 ).copyVector2sArray( geometry.uvs ) );

		}

		if ( geometry.uvs2.length > 0 ) {

			var uvs2 = new Float32Array( geometry.uvs2.length * 2 );
			this.addAttribute( 'uv2', new THREE.BufferAttribute( uvs2, 2 ).copyVector2sArray( geometry.uvs2 ) );

		}

		if ( geometry.indices.length > 0 ) {

			var TypeArray = geometry.vertices.length > 65535 ? Uint32Array : Uint16Array;
			var indices = new TypeArray( geometry.indices.length * 3 );
			this.setIndex( new THREE.BufferAttribute( indices, 1 ).copyIndicesArray( geometry.indices ) );

		}

		// groups

		this.groups = geometry.groups;

		// morphs

		for ( var name in geometry.morphTargets ) {

			var array = [];
			var morphTargets = geometry.morphTargets[ name ];

			for ( var i = 0, l = morphTargets.length; i < l; i ++ ) {

				var morphTarget = morphTargets[ i ];

				var attribute = new THREE.Float32Attribute( morphTarget.length * 3, 3 );

				array.push( attribute.copyVector3sArray( morphTarget ) );

			}

			this.morphAttributes[ name ] = array;

		}

		// skinning

		if ( geometry.skinIndices.length > 0 ) {

			var skinIndices = new THREE.Float32Attribute( geometry.skinIndices.length * 4, 4 );
			this.addAttribute( 'skinIndex', skinIndices.copyVector4sArray( geometry.skinIndices ) );

		}

		if ( geometry.skinWeights.length > 0 ) {

			var skinWeights = new THREE.Float32Attribute( geometry.skinWeights.length * 4, 4 );
			this.addAttribute( 'skinWeight', skinWeights.copyVector4sArray( geometry.skinWeights ) );

		}

		//

		if ( geometry.boundingSphere !== null ) {

			this.boundingSphere = geometry.boundingSphere.clone();

		}

		if ( geometry.boundingBox !== null ) {

			this.boundingBox = geometry.boundingBox.clone();

		}

		return this;

	},

	computeBoundingBox: function () {

		var vector = new THREE.Vector3();

		return function () {

			if ( this.boundingBox === null ) {

				this.boundingBox = new THREE.Box3();

			}

			var positions = this.attributes.position.array;

			if ( positions ) {

				var bb = this.boundingBox;
				bb.makeEmpty();

				for ( var i = 0, il = positions.length; i < il; i += 3 ) {

					vector.fromArray( positions, i );
					bb.expandByPoint( vector );

				}

			}

			if ( positions === undefined || positions.length === 0 ) {

				this.boundingBox.min.set( 0, 0, 0 );
				this.boundingBox.max.set( 0, 0, 0 );

			}

			if ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) {

				console.error( 'THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this );

			}

		};

	}(),

	computeBoundingSphere: function () {

		var box = new THREE.Box3();
		var vector = new THREE.Vector3();

		return function () {

			if ( this.boundingSphere === null ) {

				this.boundingSphere = new THREE.Sphere();

			}

			var positions = this.attributes.position.array;

			if ( positions ) {

				box.makeEmpty();

				var center = this.boundingSphere.center;

				for ( var i = 0, il = positions.length; i < il; i += 3 ) {

					vector.fromArray( positions, i );
					box.expandByPoint( vector );

				}

				box.center( center );

				// hoping to find a boundingSphere with a radius smaller than the
				// boundingSphere of the boundingBox: sqrt(3) smaller in the best case

				var maxRadiusSq = 0;

				for ( var i = 0, il = positions.length; i < il; i += 3 ) {

					vector.fromArray( positions, i );
					maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) );

				}

				this.boundingSphere.radius = Math.sqrt( maxRadiusSq );

				if ( isNaN( this.boundingSphere.radius ) ) {

					console.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this );

				}

			}

		};

	}(),

	computeFaceNormals: function () {

		// backwards compatibility

	},

	computeVertexNormals: function () {

		var index = this.index;
		var attributes = this.attributes;
		var groups = this.groups;

		if ( attributes.position ) {

			var positions = attributes.position.array;

			if ( attributes.normal === undefined ) {

				this.addAttribute( 'normal', new THREE.BufferAttribute( new Float32Array( positions.length ), 3 ) );

			} else {

				// reset existing normals to zero

				var array = attributes.normal.array;

				for ( var i = 0, il = array.length; i < il; i ++ ) {

					array[ i ] = 0;

				}

			}

			var normals = attributes.normal.array;

			var vA, vB, vC,

			pA = new THREE.Vector3(),
			pB = new THREE.Vector3(),
			pC = new THREE.Vector3(),

			cb = new THREE.Vector3(),
			ab = new THREE.Vector3();

			// indexed elements

			if ( index ) {

				var indices = index.array;

				if ( groups.length === 0 ) {

					this.addGroup( 0, indices.length );

				}

				for ( var j = 0, jl = groups.length; j < jl; ++ j ) {

					var group = groups[ j ];

					var start = group.start;
					var count = group.count;

					for ( var i = start, il = start + count; i < il; i += 3 ) {

						vA = indices[ i + 0 ] * 3;
						vB = indices[ i + 1 ] * 3;
						vC = indices[ i + 2 ] * 3;

						pA.fromArray( positions, vA );
						pB.fromArray( positions, vB );
						pC.fromArray( positions, vC );

						cb.subVectors( pC, pB );
						ab.subVectors( pA, pB );
						cb.cross( ab );

						normals[ vA ] += cb.x;
						normals[ vA + 1 ] += cb.y;
						normals[ vA + 2 ] += cb.z;

						normals[ vB ] += cb.x;
						normals[ vB + 1 ] += cb.y;
						normals[ vB + 2 ] += cb.z;

						normals[ vC ] += cb.x;
						normals[ vC + 1 ] += cb.y;
						normals[ vC + 2 ] += cb.z;

					}

				}

			} else {

				// non-indexed elements (unconnected triangle soup)

				for ( var i = 0, il = positions.length; i < il; i += 9 ) {

					pA.fromArray( positions, i );
					pB.fromArray( positions, i + 3 );
					pC.fromArray( positions, i + 6 );

					cb.subVectors( pC, pB );
					ab.subVectors( pA, pB );
					cb.cross( ab );

					normals[ i ] = cb.x;
					normals[ i + 1 ] = cb.y;
					normals[ i + 2 ] = cb.z;

					normals[ i + 3 ] = cb.x;
					normals[ i + 4 ] = cb.y;
					normals[ i + 5 ] = cb.z;

					normals[ i + 6 ] = cb.x;
					normals[ i + 7 ] = cb.y;
					normals[ i + 8 ] = cb.z;

				}

			}

			this.normalizeNormals();

			attributes.normal.needsUpdate = true;

		}

	},

	merge: function ( geometry, offset ) {

		if ( geometry instanceof THREE.BufferGeometry === false ) {

			console.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry );
			return;

		}

		if ( offset === undefined ) offset = 0;

		var attributes = this.attributes;

		for ( var key in attributes ) {

			if ( geometry.attributes[ key ] === undefined ) continue;

			var attribute1 = attributes[ key ];
			var attributeArray1 = attribute1.array;

			var attribute2 = geometry.attributes[ key ];
			var attributeArray2 = attribute2.array;

			var attributeSize = attribute2.itemSize;

			for ( var i = 0, j = attributeSize * offset; i < attributeArray2.length; i ++, j ++ ) {

				attributeArray1[ j ] = attributeArray2[ i ];

			}

		}

		return this;

	},

	normalizeNormals: function () {

		var normals = this.attributes.normal.array;

		var x, y, z, n;

		for ( var i = 0, il = normals.length; i < il; i += 3 ) {

			x = normals[ i ];
			y = normals[ i + 1 ];
			z = normals[ i + 2 ];

			n = 1.0 / Math.sqrt( x * x + y * y + z * z );

			normals[ i ] *= n;
			normals[ i + 1 ] *= n;
			normals[ i + 2 ] *= n;

		}

	},

	toJSON: function () {

		var data = {
			metadata: {
				version: 4.4,
				type: 'BufferGeometry',
				generator: 'BufferGeometry.toJSON'
			}
		};

		// standard BufferGeometry serialization

		data.uuid = this.uuid;
		data.type = this.type;
		if ( this.name !== '' ) data.name = this.name;

		if ( this.parameters !== undefined ) {

			var parameters = this.parameters;

			for ( var key in parameters ) {

				if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];

			}

			return data;

		}

		data.data = { attributes: {} };

		var index = this.index;

		if ( index !== null ) {

			var array = Array.prototype.slice.call( index.array );

			data.data.index = {
				type: index.array.constructor.name,
				array: array
			};

		}

		var attributes = this.attributes;

		for ( var key in attributes ) {

			var attribute = attributes[ key ];

			var array = Array.prototype.slice.call( attribute.array );

			data.data.attributes[ key ] = {
				itemSize: attribute.itemSize,
				type: attribute.array.constructor.name,
				array: array
			};

		}

		var groups = this.groups;

		if ( groups.length > 0 ) {

			data.data.groups = JSON.parse( JSON.stringify( groups ) );

		}

		var boundingSphere = this.boundingSphere;

		if ( boundingSphere !== null ) {

			data.data.boundingSphere = {
				center: boundingSphere.center.toArray(),
				radius: boundingSphere.radius
			};

		}

		return data;

	},

	clone: function () {

		/*
		// Handle primitives

		var parameters = this.parameters;

		if ( parameters !== undefined ) {

			var values = [];

			for ( var key in parameters ) {

				values.push( parameters[ key ] );

			}

			var geometry = Object.create( this.constructor.prototype );
			this.constructor.apply( geometry, values );
			return geometry;

		}

		return new this.constructor().copy( this );
		*/

		return new THREE.BufferGeometry().copy( this );

	},

	copy: function ( source ) {

		var index = source.index;

		if ( index !== null ) {

			this.setIndex( index.clone() );

		}

		var attributes = source.attributes;

		for ( var name in attributes ) {

			var attribute = attributes[ name ];
			this.addAttribute( name, attribute.clone() );

		}

		var groups = source.groups;

		for ( var i = 0, l = groups.length; i < l; i ++ ) {

			var group = groups[ i ];
			this.addGroup( group.start, group.count );

		}

		return this;

	},

	dispose: function () {

		this.dispatchEvent( { type: 'dispose' } );

	}

};

THREE.EventDispatcher.prototype.apply( THREE.BufferGeometry.prototype );

THREE.BufferGeometry.MaxIndex = 65535;

// File:src/core/InstancedBufferGeometry.js

/**
 * @author benaadams / https://twitter.com/ben_a_adams
 */

THREE.InstancedBufferGeometry = function () {

	THREE.BufferGeometry.call( this );

	this.type = 'InstancedBufferGeometry';
	this.maxInstancedCount = undefined;

};

THREE.InstancedBufferGeometry.prototype = Object.create( THREE.BufferGeometry.prototype );
THREE.InstancedBufferGeometry.prototype.constructor = THREE.InstancedBufferGeometry;

THREE.InstancedBufferGeometry.prototype.addGroup = function ( start, count, instances ) {

	this.groups.push( {

		start: start,
		count: count,
		instances: instances

	} );

};

THREE.InstancedBufferGeometry.prototype.copy = function ( source ) {

	var index = source.index;

	if ( index !== null ) {

		this.setIndex( index.clone() );

	}

	var attributes = source.attributes;

	for ( var name in attributes ) {

		var attribute = attributes[ name ];
		this.addAttribute( name, attribute.clone() );

	}

	var groups = source.groups;

	for ( var i = 0, l = groups.length; i < l; i ++ ) {

		var group = groups[ i ];
		this.addGroup( group.start, group.count, group.instances );

	}

	return this;

};

THREE.EventDispatcher.prototype.apply( THREE.InstancedBufferGeometry.prototype );

// File:src/core/Uniform.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Uniform = function ( type, value ) {

	this.type = type;
	this.value = value;

	this.dynamic = false;

};

THREE.Uniform.prototype = {

	constructor: THREE.Uniform,

	onUpdate: function ( callback ) {

		this.dynamic = true;
		this.onUpdateCallback = callback;

		return this;

	}

};

// File:src/animation/AnimationClip.js

/**
 *
 * Reusable set of Tracks that represent an animation.
 *
 * @author Ben Houston / http://clara.io/
 * @author David Sarno / http://lighthaus.us/
 */

THREE.AnimationClip = function ( name, duration, tracks ) {

	this.name = name || THREE.Math.generateUUID();
	this.tracks = tracks;
	this.duration = ( duration !== undefined ) ? duration : -1;

	// this means it should figure out its duration by scanning the tracks
	if ( this.duration < 0 ) {

		this.resetDuration();

	}

	// maybe only do these on demand, as doing them here could potentially slow down loading
	// but leaving these here during development as this ensures a lot of testing of these functions
	this.trim();
	this.optimize();

};

THREE.AnimationClip.prototype = {

	constructor: THREE.AnimationClip,

	resetDuration: function() {

		var tracks = this.tracks,
			duration = 0;

		for ( var i = 0, n = tracks.length; i !== n; ++ i ) {

			var track = this.tracks[ i ];

			duration = Math.max(
					duration, track.times[ track.times.length - 1 ] );

		}

		this.duration = duration;

	},

	trim: function() {

		for ( var i = 0; i < this.tracks.length; i ++ ) {

			this.tracks[ i ].trim( 0, this.duration );

		}

		return this;

	},

	optimize: function() {

		for ( var i = 0; i < this.tracks.length; i ++ ) {

			this.tracks[ i ].optimize();

		}

		return this;

	}

};

// Static methods:

Object.assign( THREE.AnimationClip, {

	parse: function( json ) {

		var tracks = [],
			jsonTracks = json.tracks,
			frameTime = 1.0 / ( json.fps || 1.0 );

		for ( var i = 0, n = jsonTracks.length; i !== n; ++ i ) {

			tracks.push( THREE.KeyframeTrack.parse( jsonTracks[ i ] ).scale( frameTime ) );

		}

		return new THREE.AnimationClip( json.name, json.duration, tracks );

	},


	toJSON: function( clip ) {

		var tracks = [],
			clipTracks = clip.tracks;

		var json = {

			'name': clip.name,
			'duration': clip.duration,
			'tracks': tracks

		};

		for ( var i = 0, n = clipTracks.length; i !== n; ++ i ) {

			tracks.push( THREE.KeyframeTrack.toJSON( clipTracks[ i ] ) );

		}

		return json;

	},


	CreateFromMorphTargetSequence: function( name, morphTargetSequence, fps ) {

		var numMorphTargets = morphTargetSequence.length;
		var tracks = [];

		for ( var i = 0; i < numMorphTargets; i ++ ) {

			var times = [];
			var values = [];

			times.push(
					( i + numMorphTargets - 1 ) % numMorphTargets,
					i,
					( i + 1 ) % numMorphTargets );

			values.push( 0, 1, 0 );

			var order = THREE.AnimationUtils.getKeyframeOrder( times );
			times = THREE.AnimationUtils.sortedArray( times, 1, order );
			values = THREE.AnimationUtils.sortedArray( values, 1, order );

			// if there is a key at the first frame, duplicate it as the
			// last frame as well for perfect loop.
			if ( times[ 0 ] === 0 ) {

				times.push( numMorphTargets );
				values.push( values[ 0 ] );

			}

			tracks.push(
					new THREE.NumberKeyframeTrack(
						'.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']',
						times, values
					).scale( 1.0 / fps ) );
		}

		return new THREE.AnimationClip( name, -1, tracks );

	},

	findByName: function( clipArray, name ) {

		for ( var i = 0; i < clipArray.length; i ++ ) {

			if ( clipArray[ i ].name === name ) {

				return clipArray[ i ];

			}
		}

		return null;

	},

	CreateClipsFromMorphTargetSequences: function( morphTargets, fps ) {

		var animationToMorphTargets = {};

		// tested with https://regex101.com/ on trick sequences
		// such flamingo_flyA_003, flamingo_run1_003, crdeath0059
		var pattern = /^([\w-]*?)([\d]+)$/;

		// sort morph target names into animation groups based
		// patterns like Walk_001, Walk_002, Run_001, Run_002
		for ( var i = 0, il = morphTargets.length; i < il; i ++ ) {

			var morphTarget = morphTargets[ i ];
			var parts = morphTarget.name.match( pattern );

			if ( parts && parts.length > 1 ) {

				var name = parts[ 1 ];

				var animationMorphTargets = animationToMorphTargets[ name ];
				if ( ! animationMorphTargets ) {

					animationToMorphTargets[ name ] = animationMorphTargets = [];

				}

				animationMorphTargets.push( morphTarget );

			}

		}

		var clips = [];

		for ( var name in animationToMorphTargets ) {

			clips.push( THREE.AnimationClip.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps ) );

		}

		return clips;

	},

	// parse the animation.hierarchy format
	parseAnimation: function( animation, bones, nodeName ) {

		if ( ! animation ) {

			console.error( "  no animation in JSONLoader data" );
			return null;

		}

		var addNonemptyTrack = function(
				trackType, trackName, animationKeys, propertyName, destTracks ) {

			// only return track if there are actually keys.
			if ( animationKeys.length !== 0 ) {

				var times = [];
				var values = [];

				THREE.AnimationUtils.flattenJSON(
						animationKeys, times, values, propertyName );

				// empty keys are filtered out, so check again
				if ( times.length !== 0 ) {

					destTracks.push( new trackType( trackName, times, values ) );

				}

			}

		};

		var tracks = [];

		var clipName = animation.name || 'default';
		// automatic length determination in AnimationClip.
		var duration = animation.length || -1;
		var fps = animation.fps || 30;

		var hierarchyTracks = animation.hierarchy || [];

		for ( var h = 0; h < hierarchyTracks.length; h ++ ) {

			var animationKeys = hierarchyTracks[ h ].keys;

			// skip empty tracks
			if ( ! animationKeys || animationKeys.length == 0 ) continue;

			// process morph targets in a way exactly compatible
			// with AnimationHandler.init( animation )
			if ( animationKeys[0].morphTargets ) {

				// figure out all morph targets used in this track
				var morphTargetNames = {};
				for ( var k = 0; k < animationKeys.length; k ++ ) {

					if ( animationKeys[k].morphTargets ) {

						for ( var m = 0; m < animationKeys[k].morphTargets.length; m ++ ) {

							morphTargetNames[ animationKeys[k].morphTargets[m] ] = -1;
						}

					}

				}

				// create a track for each morph target with all zero
				// morphTargetInfluences except for the keys in which
				// the morphTarget is named.
				for ( var morphTargetName in morphTargetNames ) {

					var times = [];
					var values = [];

					for ( var m = 0;
							m !== animationKeys[k].morphTargets.length; ++ m ) {

						var animationKey = animationKeys[k];

						times.push( animationKey.time );
						values.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 )

					}

					tracks.push( new THREE.NumberKeyframeTrack(
							'.morphTargetInfluence[' + morphTargetName + ']', times, values ) );

				}

				duration = morphTargetNames.length * ( fps || 1.0 );

			} else {
				// ...assume skeletal animation

				var boneName = '.bones[' + bones[ h ].name + ']';

				addNonemptyTrack(
						THREE.VectorKeyframeTrack, boneName + '.position',
						animationKeys, 'pos', tracks );

				addNonemptyTrack(
						THREE.QuaternionKeyframeTrack, boneName + '.quaternion',
						animationKeys, 'rot', tracks );

				addNonemptyTrack(
						THREE.VectorKeyframeTrack, boneName + '.scale',
						animationKeys, 'scl', tracks );

			}

		}

		if ( tracks.length === 0 ) {

			return null;

		}

		var clip = new THREE.AnimationClip( clipName, duration, tracks );

		return clip;

	}

} );


// File:src/animation/AnimationMixer.js

/**
 *
 * Player for AnimationClips.
 *
 *
 * @author Ben Houston / http://clara.io/
 * @author David Sarno / http://lighthaus.us/
 * @author tschw
 */

THREE.AnimationMixer = function( root ) {

	this._root = root;
	this._initMemoryManager();
	this._accuIndex = 0;

	this.time = 0;

	this.timeScale = 1.0;

};

THREE.AnimationMixer.prototype = {

	constructor: THREE.AnimationMixer,

	// return an action for a clip optionally using a custom root target
	// object (this method allocates a lot of dynamic memory in case a
	// previously unknown clip/root combination is specified)
	clipAction: function( clip, optionalRoot ) {

		var root = optionalRoot || this._root,
			rootUuid = root.uuid,
			clipName = ( typeof clip === 'string' ) ? clip : clip.name,
			clipObject = ( clip !== clipName ) ? clip : null,

			actionsForClip = this._actionsByClip[ clipName ],
			prototypeAction;

		if ( actionsForClip !== undefined ) {

			var existingAction =
					actionsForClip.actionByRoot[ rootUuid ];

			if ( existingAction !== undefined ) {

				return existingAction;

			}

			// we know the clip, so we don't have to parse all
			// the bindings again but can just copy
			prototypeAction = actionsForClip.knownActions[ 0 ];

			// also, take the clip from the prototype action
			clipObject = prototypeAction._clip;

			if ( clip !== clipName && clip !== clipObject ) {

				throw new Error(
						"Different clips with the same name detected!" );

			}

		}

		// clip must be known when specified via string
		if ( clipObject === null ) return null;

		// allocate all resources required to run it
		var newAction = new THREE.
				AnimationMixer._Action( this, clipObject, optionalRoot );

		this._bindAction( newAction, prototypeAction );

		// and make the action known to the memory manager
		this._addInactiveAction( newAction, clipName, rootUuid );

		return newAction;

	},

	// get an existing action
	existingAction: function( clip, optionalRoot ) {

		var root = optionalRoot || this._root,
			rootUuid = root.uuid,
			clipName = ( typeof clip === 'string' ) ? clip : clip.name,
			actionsForClip = this._actionsByClip[ clipName ];

		if ( actionsForClip !== undefined ) {

			return actionsForClip.actionByRoot[ rootUuid ] || null;

		}

		return null;

	},

	// deactivates all previously scheduled actions
	stopAllAction: function() {

		var actions = this._actions,
			nActions = this._nActiveActions,
			bindings = this._bindings,
			nBindings = this._nActiveBindings;

		this._nActiveActions = 0;
		this._nActiveBindings = 0;

		for ( var i = 0; i !== nActions; ++ i ) {

			actions[ i ].reset();

		}

		for ( var i = 0; i !== nBindings; ++ i ) {

			bindings[ i ].useCount = 0;

		}

		return this;

	},

	// advance the time and update apply the animation
	update: function( deltaTime ) {

		deltaTime *= this.timeScale;

		var actions = this._actions,
			nActions = this._nActiveActions,

			time = this.time += deltaTime,
			timeDirection = Math.sign( deltaTime ),

			accuIndex = this._accuIndex ^= 1;

		// run active actions

		for ( var i = 0; i !== nActions; ++ i ) {

			var action = actions[ i ];

			if ( action.enabled ) {

				action._update( time, deltaTime, timeDirection, accuIndex );

			}

		}

		// update scene graph

		var bindings = this._bindings,
			nBindings = this._nActiveBindings;

		for ( var i = 0; i !== nBindings; ++ i ) {

			bindings[ i ].apply( accuIndex );

		}

		return this;

	},

	// return this mixer's root target object
	getRoot: function() {

		return this._root;

	},

	// free all resources specific to a particular clip
	uncacheClip: function( clip ) {

		var actions = this._actions,
			clipName = clip.name,
			actionsByClip = this._actionsByClip,
			actionsForClip = actionsByClip[ clipName ];

		if ( actionsForClip !== undefined ) {

			// note: just calling _removeInactiveAction would mess up the
			// iteration state and also require updating the state we can
			// just throw away

			var actionsToRemove = actionsForClip.knownActions;

			for ( var i = 0, n = actionsToRemove.length; i !== n; ++ i ) {

				var action = actionsToRemove[ i ];

				this._deactivateAction( action );

				var cacheIndex = action._cacheIndex,
					lastInactiveAction = actions[ actions.length - 1 ];

				action._cacheIndex = null;
				action._byClipCacheIndex = null;

				lastInactiveAction._cacheIndex = cacheIndex;
				actions[ cacheIndex ] = lastInactiveAction;
				actions.pop();

				this._removeInactiveBindingsForAction( action );

			}

			delete actionsByClip[ clipName ];

		}

	},

	// free all resources specific to a particular root target object
	uncacheRoot: function( root ) {

		var rootUuid = root.uuid,
			actionsByClip = this._actionsByClip;

		for ( var clipName in actionsByClip ) {

			var actionByRoot = actionsByClip[ clipName ].actionByRoot,
				action = actionByRoot[ rootUuid ];

			if ( action !== undefined ) {

				this._deactivateAction( action );
				this._removeInactiveAction( action );

			}

		}

		var bindingsByRoot = this._bindingsByRootAndName,
			bindingByName = bindingsByRoot[ rootUuid ];

		if ( bindingByName !== undefined ) {

			for ( var trackName in bindingByName ) {

				var binding = bindingByName[ trackName ];
				binding.restoreOriginalState();
				this._removeInactiveBinding( binding );

			}

		}

	},

	// remove a targeted clip from the cache
	uncacheAction: function( clip, optionalRoot ) {

		var action = this.existingAction( clip, optionalRoot );

		if ( action !== null ) {

			this._deactivateAction( action );
			this._removeInactiveAction( action );

		}

	}

};

THREE.EventDispatcher.prototype.apply( THREE.AnimationMixer.prototype );

THREE.AnimationMixer._Action =
		function( mixer, clip, localRoot ) {

	this._mixer = mixer;
	this._clip = clip;
	this._localRoot = localRoot || null;

	var tracks = clip.tracks,
		nTracks = tracks.length,
		interpolants = new Array( nTracks );

	var interpolantSettings = {
			endingStart: 	THREE.ZeroCurvatureEnding,
			endingEnd:		THREE.ZeroCurvatureEnding
	};

	for ( var i = 0; i !== nTracks; ++ i ) {

		var interpolant = tracks[ i ].createInterpolant( null );
		interpolants[ i ] = interpolant;
		interpolant.settings = interpolantSettings

	}

	this._interpolantSettings = interpolantSettings;

	this._interpolants = interpolants;	// bound by the mixer

	// inside: PropertyMixer (managed by the mixer)
	this._propertyBindings = new Array( nTracks );

	this._cacheIndex = null;			// for the memory manager
	this._byClipCacheIndex = null;		// for the memory manager

	this._timeScaleInterpolant = null;
	this._weightInterpolant = null;

	this.loop = THREE.LoopRepeat;
	this._loopCount = -1;

	// global mixer time when the action is to be started
	// it's set back to 'null' upon start of the action
	this._startTime = null;

	// scaled local time of the action
	// gets clamped or wrapped to 0..clip.duration according to loop
	this.time = 0;

	this.timeScale = 1;
	this._effectiveTimeScale = 1;

	this.weight = 1;
	this._effectiveWeight = 1;

	this.repetitions = Infinity; 		// no. of repetitions when looping

	this.paused = false;				// false -> zero effective time scale
	this.enabled = true;				// true -> zero effective weight

	this.clampWhenFinished 	= false;	// keep feeding the last frame?

	this.zeroSlopeAtStart 	= true;		// for smooth interpolation w/o separate
	this.zeroSlopeAtEnd		= true;		// clips for start, loop and end

};

THREE.AnimationMixer._Action.prototype = {

	constructor: THREE.AnimationMixer._Action,

	// State & Scheduling

	play: function() {

		this._mixer._activateAction( this );

		return this;

	},

	stop: function() {

		this._mixer._deactivateAction( this );

		return this.reset();

	},

	reset: function() {

		this.paused = false;
		this.enabled = true;

		this.time = 0;			// restart clip
		this._loopCount = -1;	// forget previous loops
		this._startTime = null;	// forget scheduling

		return this.stopFading().stopWarping();

	},

	isRunning: function() {

		var start = this._startTime;

		return this.enabled && ! this.paused && this.timeScale !== 0 &&
				this._startTime === null && this._mixer._isActiveAction( this )

	},

	// return true when play has been called
	isScheduled: function() {

		return this._mixer._isActiveAction( this );

	},

	startAt: function( time ) {

		this._startTime = time;

		return this;

	},

	setLoop: function( mode, repetitions ) {

		this.loop = mode;
		this.repetitions = repetitions;

		return this;

	},

	// Weight

	// set the weight stopping any scheduled fading
	// although .enabled = false yields an effective weight of zero, this
	// method does *not* change .enabled, because it would be confusing
	setEffectiveWeight: function( weight ) {

		this.weight = weight;

		// note: same logic as when updated at runtime
		this._effectiveWeight = this.enabled ? weight : 0;

		return this.stopFading();

	},

	// return the weight considering fading and .enabled
	getEffectiveWeight: function() {

		return this._effectiveWeight;

	},

	fadeIn: function( duration ) {

		return this._scheduleFading( duration, 0, 1 );

	},

	fadeOut: function( duration ) {

		return this._scheduleFading( duration, 1, 0 );

	},

	crossFadeFrom: function( fadeOutAction, duration, warp ) {

		var mixer = this._mixer;

		fadeOutAction.fadeOut( duration );
		this.fadeIn( duration );

		if( warp ) {

			var fadeInDuration = this._clip.duration,
				fadeOutDuration = fadeOutAction._clip.duration,

				startEndRatio = fadeOutDuration / fadeInDuration,
				endStartRatio = fadeInDuration / fadeOutDuration;

			fadeOutAction.warp( 1.0, startEndRatio, duration );
			this.warp( endStartRatio, 1.0, duration );

		}

		return this;

	},

	crossFadeTo: function( fadeInAction, duration, warp ) {

		return fadeInAction.crossFadeFrom( this, duration, warp );

	},

	stopFading: function() {

		var weightInterpolant = this._weightInterpolant;

		if ( weightInterpolant !== null ) {

			this._weightInterpolant = null;
			this._mixer._takeBackControlInterpolant( weightInterpolant );

		}

		return this;

	},

	// Time Scale Control

	// set the weight stopping any scheduled warping
	// although .paused = true yields an effective time scale of zero, this
	// method does *not* change .paused, because it would be confusing
	setEffectiveTimeScale: function( timeScale ) {

		this.timeScale = timeScale;
		this._effectiveTimeScale = this.paused ? 0 :timeScale;

		return this.stopWarping();

	},

	// return the time scale considering warping and .paused
	getEffectiveTimeScale: function() {

		return this._effectiveTimeScale;

	},

	setDuration: function( duration ) {

		this.timeScale = this._clip.duration / duration;

		return this.stopWarping();

	},

	syncWith: function( action ) {

		this.time = action.time;
		this.timeScale = action.timeScale;

		return this.stopWarping();

	},

	halt: function( duration ) {

		return this.warp( this._currentTimeScale, 0, duration );

	},

	warp: function( startTimeScale, endTimeScale, duration ) {

		var mixer = this._mixer, now = mixer.time,
			interpolant = this._timeScaleInterpolant,

			timeScale = this.timeScale;

		if ( interpolant === null ) {

			interpolant = mixer._lendControlInterpolant(),
			this._timeScaleInterpolant = interpolant;

		}

		var times = interpolant.parameterPositions,
			values = interpolant.sampleValues;

		times[ 0 ] = now;
		times[ 1 ] = now + duration;

		values[ 0 ] = startTimeScale / timeScale;
		values[ 1 ] = endTimeScale / timeScale;

		return this;

	},

	stopWarping: function() {

		var timeScaleInterpolant = this._timeScaleInterpolant;

		if ( timeScaleInterpolant !== null ) {

			this._timeScaleInterpolant = null;
			this._mixer._takeBackControlInterpolant( timeScaleInterpolant );

		}

		return this;

	},

	// Object Accessors

	getMixer: function() {

		return this._mixer;

	},

	getClip: function() {

		return this._clip;

	},

	getRoot: function() {

		return this._localRoot || this._mixer._root;

	},

	// Interna

	_update: function( time, deltaTime, timeDirection, accuIndex ) {
		// called by the mixer

		var startTime = this._startTime;

		if ( startTime !== null ) {

			// check for scheduled start of action

			var timeRunning = ( time - startTime ) * timeDirection;
			if ( timeRunning < 0 || timeDirection === 0 ) {

				return; // yet to come / don't decide when delta = 0

			}

			// start

			this._startTime = null; // unschedule
			deltaTime = timeDirection * timeRunning;

		}

		// apply time scale and advance time

		deltaTime *= this._updateTimeScale( time );
		var clipTime = this._updateTime( deltaTime );

		// note: _updateTime may disable the action resulting in
		// an effective weight of 0

		var weight = this._updateWeight( time );

		if ( weight > 0 ) {

			var interpolants = this._interpolants;
			var propertyMixers = this._propertyBindings;

			for ( var j = 0, m = interpolants.length; j !== m; ++ j ) {

				interpolants[ j ].evaluate( clipTime );
				propertyMixers[ j ].accumulate( accuIndex, weight );

			}

		}

	},

	_updateWeight: function( time ) {

		var weight = 0;

		if ( this.enabled ) {

			weight = this.weight;
			var interpolant = this._weightInterpolant;

			if ( interpolant !== null ) {

				var interpolantValue = interpolant.evaluate( time )[ 0 ];

				weight *= interpolantValue;

				if ( time > interpolant.parameterPositions[ 1 ] ) {

					this.stopFading();

					if ( interpolantValue === 0 ) {

						// faded out, disable
						this.enabled = false;

					}

				}

			}

		}

		this._effectiveWeight = weight;
		return weight;

	},

	_updateTimeScale: function( time ) {

		var timeScale = 0;

		if ( ! this.paused ) {

			timeScale = this.timeScale;

			var interpolant = this._timeScaleInterpolant;

			if ( interpolant !== null ) {

				var interpolantValue = interpolant.evaluate( time )[ 0 ];

				timeScale *= interpolantValue;

				if ( time > interpolant.parameterPositions[ 1 ] ) {

					this.stopWarping();

					if ( timeScale === 0 ) {

						// motion has halted, pause
						this.pause = true;

					} else {

						// warp done - apply final time scale
						this.timeScale = timeScale;

					}

				}

			}

		}

		this._effectiveTimeScale = timeScale;
		return timeScale;

	},

	_updateTime: function( deltaTime ) {

		var time = this.time + deltaTime;

		if ( deltaTime === 0 ) return time;

		var duration = this._clip.duration,

			loop = this.loop,
			loopCount = this._loopCount,

			pingPong = false;

		switch ( loop ) {

			case THREE.LoopOnce:
			case THREE.LoopOnceClamp:

				if ( loopCount === -1 ) {

					// just started

					this.loopCount = 0;
					this._setEndings( true, true, false );

				}

				if ( time >= duration ) {

					time = duration;

				} else if ( time < 0 ) {

					time = 0;

				} else break;

				// reached the end

				if ( this.clampWhenFinished ) this.pause = true;
				else this.enabled = false;

				this._mixer.dispatchEvent( {
					type: 'finished', action: this,
					direction: deltaTime < 0 ? -1 : 1
				} );

				break;

			case THREE.LoopPingPong:

				pingPong = true;

			case THREE.LoopRepeat:

				if ( loopCount === -1 ) {

					// just started

					if ( deltaTime > 0 ) {

						loopCount = 0;

						this._setEndings(
								true, this.repetitions === 0, pingPong );

					} else {

						// when looping in reverse direction, the initial
						// transition through zero counts as a repetition,
						// so leave loopCount at -1

						this._setEndings(
								this.repetitions === 0, true, pingPong );

					}

				}

				if ( time >= duration || time < 0 ) {

					// wrap around

					var loopDelta = Math.floor( time / duration ); // signed
					time -= duration * loopDelta;

					loopCount += Math.abs( loopDelta );

					var pending = this.repetitions - loopCount;

					if ( pending < 0 ) {

						// stop (switch state, clamp time, fire event)

						if ( this.clampWhenFinished ) this.paused = true;
						else this.enabled = false;

						time = deltaTime > 0 ? duration : 0;

						this._mixer.dispatchEvent( {
							type: 'finished', action: this,
							direction: deltaTime > 0 ? 1 : -1
						} );

						break;

					} else if ( pending === 0 ) {

						// transition to last round

						var atStart = deltaTime < 0;
						this._setEndings( atStart, ! atStart, pingPong );

					} else {

						this._setEndings( false, false, pingPong );

					}

					this._loopCount = loopCount;

					this._mixer.dispatchEvent( {
						type: 'loop', action: this, loopDelta: loopDelta
					} );

				}

				if ( loop === THREE.LoopPingPong && ( loopCount & 1 ) === 1 ) {

					// invert time for the "pong round"

					this.time = time;

					return duration - time;

				}

				break;

		}

		this.time = time;

		return time;

	},

	_setEndings: function( atStart, atEnd, pingPong ) {

		var settings = this._interpolantSettings;

		if ( pingPong ) {

			settings.endingStart 	= THREE.ZeroSlopeEnding;
			settings.endingEnd		= THREE.ZeroSlopeEnding;

		} else {

			// assuming for LoopOnce atStart == atEnd == true

			if ( atStart ) {

				settings.endingStart = this.zeroSlopeAtStart ?
						THREE.ZeroSlopeEnding : THREE.ZeroCurvatureEnding;

			} else {

				settings.endingStart = THREE.WrapAroundEnding;

			}

			if ( atEnd ) {

				settings.endingEnd = this.zeroSlopeAtEnd ?
						THREE.ZeroSlopeEnding : THREE.ZeroCurvatureEnding;

			} else {

				settings.endingEnd 	 = THREE.WrapAroundEnding;

			}

		}

	},

	_scheduleFading: function( duration, weightNow, weightThen ) {

		var mixer = this._mixer, now = mixer.time,
			interpolant = this._weightInterpolant;

		if ( interpolant === null ) {

			interpolant = mixer._lendControlInterpolant(),
			this._weightInterpolant = interpolant;

		}

		var times = interpolant.parameterPositions,
			values = interpolant.sampleValues;

		times[ 0 ] = now; 				values[ 0 ] = weightNow;
		times[ 1 ] = now + duration;	values[ 1 ] = weightThen;

		return this;

	}

};

// Implementation details:

Object.assign( THREE.AnimationMixer.prototype, {

	_bindAction: function( action, prototypeAction ) {

		var root = action._localRoot || this._root,
			tracks = action._clip.tracks,
			nTracks = tracks.length,
			bindings = action._propertyBindings,
			interpolants = action._interpolants,
			rootUuid = root.uuid,
			bindingsByRoot = this._bindingsByRootAndName,
			bindingsByName = bindingsByRoot[ rootUuid ];

		if ( bindingsByName === undefined ) {

			bindingsByName = {};
			bindingsByRoot[ rootUuid ] = bindingsByName;

		}

		for ( var i = 0; i !== nTracks; ++ i ) {

			var track = tracks[ i ],
				trackName = track.name,
				binding = bindingsByName[ trackName ];

			if ( binding !== undefined ) {

				bindings[ i ] = binding;

			} else {

				binding = bindings[ i ];

				if ( binding !== undefined ) {

					// existing binding, make sure the cache knows

					if ( binding._cacheIndex === null ) {

						++ binding.referenceCount;
						this._addInactiveBinding( binding, rootUuid, trackName );

					}

					continue;

				}

				var path = prototypeAction && prototypeAction.
						_propertyBindings[ i ].binding.parsedPath;

				binding = new THREE.PropertyMixer(
						THREE.PropertyBinding.create( root, trackName, path ),
						track.ValueTypeName, track.getValueSize() );

				++ binding.referenceCount;
				this._addInactiveBinding( binding, rootUuid, trackName );

				bindings[ i ] = binding;

			}

			interpolants[ i ].resultBuffer = binding.buffer;

		}

	},

	_activateAction: function( action ) {

		if ( ! this._isActiveAction( action ) ) {

			if ( action._cacheIndex === null ) {

				// this action has been forgotten by the cache, but the user
				// appears to be still using it -> rebind

				var rootUuid = ( action._localRoot || this._root ).uuid,
					clipName = action._clip.name,
					actionsForClip = this._actionsByClip[ clipName ];

				this._bindAction( action,
						actionsForClip && actionsForClip.knownActions[ 0 ] );

				this._addInactiveAction( action, clipName, rootUuid );

			}

			var bindings = action._propertyBindings;

			// increment reference counts / sort out state
			for ( var i = 0, n = bindings.length; i !== n; ++ i ) {

				var binding = bindings[ i ];

				if ( binding.useCount ++ === 0 ) {

					this._lendBinding( binding );
					binding.saveOriginalState();

				}

			}

			this._lendAction( action );

		}

	},

	_deactivateAction: function( action ) {

		if ( this._isActiveAction( action ) ) {

			var bindings = action._propertyBindings;

			// decrement reference counts / sort out state
			for ( var i = 0, n = bindings.length; i !== n; ++ i ) {

				var binding = bindings[ i ];

				if ( -- binding.useCount === 0 ) {

					binding.restoreOriginalState();
					this._takeBackBinding( binding );

				}

			}

			this._takeBackAction( action );

		}

	},

	// Memory manager

	_initMemoryManager: function() {

		this._actions = []; // 'nActiveActions' followed by inactive ones
		this._nActiveActions = 0;

		this._actionsByClip = {};
		// inside:
		// {
		// 		knownActions: Array< _Action >	- used as prototypes
		// 		actionByRoot: _Action			- lookup
		// }


		this._bindings = []; // 'nActiveBindings' followed by inactive ones
		this._nActiveBindings = 0;

		this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >


		this._controlInterpolants = []; // same game as above
		this._nActiveControlInterpolants = 0;

		var scope = this;

		this.stats = {

			actions: {
				get total() { return scope._actions.length; },
				get inUse() { return scope._nActiveActions; }
			},
			bindings: {
				get total() { return scope._bindings.length; },
				get inUse() { return scope._nActiveBindings; }
			},
			controlInterpolants: {
				get total() { return scope._controlInterpolants.length; },
				get inUse() { return scope._nActiveControlInterpolants; }
			}

		};

	},

	// Memory management for _Action objects

	_isActiveAction: function( action ) {

		var index = action._cacheIndex;
		return index !== null && index < this._nActiveActions;

	},

	_addInactiveAction: function( action, clipName, rootUuid ) {

		var actions = this._actions,
			actionsByClip = this._actionsByClip,
			actionsForClip = actionsByClip[ clipName ];

		if ( actionsForClip === undefined ) {

			actionsForClip = {

				knownActions: [ action ],
				actionByRoot: {}

			};

			action._byClipCacheIndex = 0;

			actionsByClip[ clipName ] = actionsForClip;

		} else {

			var knownActions = actionsForClip.knownActions;

			action._byClipCacheIndex = knownActions.length;
			knownActions.push( action );

		}

		action._cacheIndex = actions.length;
		actions.push( action );

		actionsForClip.actionByRoot[ rootUuid ] = action;

	},

	_removeInactiveAction: function( action ) {

		var actions = this._actions,
			lastInactiveAction = actions[ actions.length - 1 ],
			cacheIndex = action._cacheIndex;

		lastInactiveAction._cacheIndex = cacheIndex;
		actions[ cacheIndex ] = lastInactiveAction;
		actions.pop();

		action._cacheIndex = null;


		var clipName = action._clip.name,
			actionsByClip = this._actionsByClip,
			actionsForClip = actionsByClip[ clipName ],
			knownActionsForClip = actionsForClip.knownActions,

			lastKnownAction =
				knownActionsForClip[ knownActionsForClip.length - 1 ],

			byClipCacheIndex = action._byClipCacheIndex;

		lastKnownAction._byClipCacheIndex = byClipCacheIndex;
		knownActionsForClip[ byClipCacheIndex ] = lastKnownAction;
		knownActionsForClip.pop();

		action._byClipCacheIndex = null;


		var actionByRoot = actionsForClip.actionByRoot,
			rootUuid = ( actions._localRoot || this._root ).uuid;

		delete actionByRoot[ rootUuid ];

		if ( knownActionsForClip.length === 0 ) {

			delete actionsByClip[ clipName ];

		}

		this._removeInactiveBindingsForAction( action );

	},

	_removeInactiveBindingsForAction: function( action ) {

		var bindings = action._propertyBindings;
		for ( var i = 0, n = bindings.length; i !== n; ++ i ) {

			var binding = bindings[ i ];

			if ( -- binding.referenceCount === 0 ) {

				this._removeInactiveBinding( binding );

			}

		}

	},

	_lendAction: function( action ) {

		// [ active actions |  inactive actions  ]
		// [  active actions >| inactive actions ]
		//                 s        a
		//                  <-swap->
		//                 a        s

		var actions = this._actions,
			prevIndex = action._cacheIndex,

			lastActiveIndex = this._nActiveActions ++,

			firstInactiveAction = actions[ lastActiveIndex ];

		action._cacheIndex = lastActiveIndex;
		actions[ lastActiveIndex ] = action;

		firstInactiveAction._cacheIndex = prevIndex;
		actions[ prevIndex ] = firstInactiveAction;

	},

	_takeBackAction: function( action ) {

		// [  active actions  | inactive actions ]
		// [ active actions |< inactive actions  ]
		//        a        s
		//         <-swap->
		//        s        a

		var actions = this._actions,
			prevIndex = action._cacheIndex,

			firstInactiveIndex = -- this._nActiveActions,

			lastActiveAction = actions[ firstInactiveIndex ];

		action._cacheIndex = firstInactiveIndex;
		actions[ firstInactiveIndex ] = action;

		lastActiveAction._cacheIndex = prevIndex;
		actions[ prevIndex ] = lastActiveAction;

	},

	// Memory management for PropertyMixer objects

	_addInactiveBinding: function( binding, rootUuid, trackName ) {

		var bindingsByRoot = this._bindingsByRootAndName,
			bindingByName = bindingsByRoot[ rootUuid ],

			bindings = this._bindings;

		if ( bindingByName === undefined ) {

			bindingByName = {};
			bindingsByRoot[ rootUuid ] = bindingByName;

		}

		bindingByName[ trackName ] = binding;

		binding._cacheIndex = bindings.length;
		bindings.push( binding );

	},

	_removeInactiveBinding: function( binding ) {

		var bindings = this._bindings,
			propBinding = binding.binding,
			rootUuid = propBinding.rootNode.uuid,
			trackName = propBinding.path,
			bindingsByRoot = this._bindingsByRootAndName,
			bindingByName = bindingsByRoot[ rootUuid ],

			lastInactiveBinding = bindings[ bindings.length - 1 ],
			cacheIndex = binding._cacheIndex;

		lastInactiveBinding._cacheIndex = cacheIndex;
		bindings[ cacheIndex ] = lastInactiveBinding;
		bindings.pop();

		delete bindingByName[ trackName ];

		remove_empty_map: {

			for ( var _ in bindingByName ) break remove_empty_map;

			delete bindingsByRoot[ rootUuid ];

		}

	},

	_lendBinding: function( binding ) {

		var bindings = this._bindings,
			prevIndex = binding._cacheIndex,

			lastActiveIndex = this._nActiveBindings ++,

			firstInactiveBinding = bindings[ lastActiveIndex ];

		binding._cacheIndex = lastActiveIndex;
		bindings[ lastActiveIndex ] = binding;

		firstInactiveBinding._cacheIndex = prevIndex;
		bindings[ prevIndex ] = firstInactiveBinding;

	},

	_takeBackBinding: function( binding ) {

		var bindings = this._bindings,
			prevIndex = binding._cacheIndex,

			firstInactiveIndex = -- this._nActiveBindings,

			lastActiveBinding = bindings[ firstInactiveIndex ];

		binding._cacheIndex = firstInactiveIndex;
		bindings[ firstInactiveIndex ] = binding;

		lastActiveBinding._cacheIndex = prevIndex;
		bindings[ prevIndex ] = lastActiveBinding;

	},


	// Memory management of Interpolants for weight and time scale

	_lendControlInterpolant: function() {

		var interpolants = this._controlInterpolants,
			lastActiveIndex = this._nActiveControlInterpolants ++,
			interpolant = interpolants[ lastActiveIndex ];

		if ( interpolant === undefined ) {

			interpolant = new THREE.LinearInterpolant(
					new Float32Array( 2 ), new Float32Array( 2 ),
						1, this._controlInterpolantsResultBuffer );

			interpolant.__cacheIndex = lastActiveIndex;
			interpolants[ lastActiveIndex ] = interpolant;

		}

		return interpolant;

	},

	_takeBackControlInterpolant: function( interpolant ) {

		var interpolants = this._controlInterpolants,
			prevIndex = interpolant.__cacheIndex,

			firstInactiveIndex = -- this._nActiveControlInterpolants,

			lastActiveInterpolant = interpolants[ firstInactiveIndex ];

		interpolant.__cacheIndex = firstInactiveIndex;
		interpolants[ firstInactiveIndex ] = interpolant;

		lastActiveInterpolant.__cacheIndex = prevIndex;
		interpolants[ prevIndex ] = lastActiveInterpolant;

	},

	_controlInterpolantsResultBuffer: new Float32Array( 1 )

} );


// File:src/animation/AnimationObjectGroup.js

/**
 *
 * A group of objects that receives a shared animation state.
 *
 * Usage:
 *
 * 	-	Add objects you would otherwise pass as 'root' to the
 * 		constructor or the .clipAction method of AnimationMixer.
 *
 * 	-	Instead pass this object as 'root'.
 *
 * 	-	You can also add and remove objects later when the mixer
 * 		is running.
 *
 * Note:
 *
 *  	Objects of this class appear as one object to the mixer,
 *  	so cache control of the individual objects must be done
 *  	on the group.
 *
 * Limitation:
 *
 * 	- 	The animated properties must be compatible among the
 * 		all objects in the group.
 *
 *  -	A single property can either be controlled through a
 *  	target group or directly, but not both.
 *
 * @author tschw
 */

THREE.AnimationObjectGroup = function( var_args ) {

	this.uuid = THREE.Math.generateUUID();

	// cached objects followed by the active ones
	this._objects = Array.prototype.slice.call( arguments );

	this.nCachedObjects_ = 0;			// threshold
	// note: read by PropertyBinding.Composite

	var indices = {};
	this._indicesByUUID = indices;		// for bookkeeping

	for ( var i = 0, n = arguments.length; i !== n; ++ i ) {

		indices[ arguments[ i ].uuid ] = i;

	}

	this._paths = [];					// inside: string
	this._parsedPaths = [];				// inside: { we don't care, here }
	this._bindings = []; 				// inside: Array< PropertyBinding >
	this._bindingsIndicesByPath = {}; 	// inside: indices in these arrays

	var scope = this;

	this.stats = {

		objects: {
			get total() { return scope._objects.length; },
			get inUse() { return this.total - scope.nCachedObjects_;  }
		},

		get bindingsPerObject() { return scope._bindings.length; }

	};

};

THREE.AnimationObjectGroup.prototype = {

	constructor: THREE.AnimationObjectGroup,

	add: function( var_args ) {

		var objects = this._objects,
			nObjects = objects.length,
			nCachedObjects = this.nCachedObjects_,
			indicesByUUID = this._indicesByUUID,
			paths = this._paths,
			parsedPaths = this._parsedPaths,
			bindings = this._bindings,
			nBindings = bindings.length;

		for ( var i = 0, n = arguments.length; i !== n; ++ i ) {

			var object = arguments[ i ],
				uuid = object.uuid,
				index = indicesByUUID[ uuid ];

			if ( index === undefined ) {

				// unknown object -> add it to the ACTIVE region

				index = nObjects ++;
				indicesByUUID[ uuid ] = index;
				objects.push( object );

				// accounting is done, now do the same for all bindings

				for ( var j = 0, m = nBindings; j !== m; ++ j ) {

					bindings[ j ].push(
							new THREE.PropertyBinding(
								object, paths[ j ], parsedPaths[ j ] ) );

				}

			} else if ( index < nCachedObjects ) {

				var knownObject = objects[ index ];

				// move existing object to the ACTIVE region

				var firstActiveIndex = -- nCachedObjects,
					lastCachedObject = objects[ firstActiveIndex ];

				indicesByUUID[ lastCachedObject.uuid ] = index;
				objects[ index ] = lastCachedObject;

				indicesByUUID[ uuid ] = firstActiveIndex;
				objects[ firstActiveIndex ] = object;

				// accounting is done, now do the same for all bindings

				for ( var j = 0, m = nBindings; j !== m; ++ j ) {

					var bindingsForPath = bindings[ j ],
						lastCached = bindingsForPath[ firstActiveIndex ],
						binding = bindingsForPath[ index ];

					bindingsForPath[ index ] = lastCached;

					if ( binding === undefined ) {

						// since we do not bother to create new bindings
						// for objects that are cached, the binding may
						// or may not exist

						binding = new THREE.PropertyBinding(
								object, paths[ j ], parsedPaths[ j ] );

					}

					bindingsForPath[ firstActiveIndex ] = binding;

				}

			} else if ( objects[ index ] !== knownObject) {

				console.error( "Different objects with the same UUID " +
						"detected. Clean the caches or recreate your " +
						"infrastructure when reloading scenes..." );

			} // else the object is already where we want it to be

		} // for arguments

		this.nCachedObjects_ = nCachedObjects;

	},

	remove: function( var_args ) {

		var objects = this._objects,
			nObjects = objects.length,
			nCachedObjects = this.nCachedObjects_,
			indicesByUUID = this._indicesByUUID,
			bindings = this._bindings,
			nBindings = bindings.length;

		for ( var i = 0, n = arguments.length; i !== n; ++ i ) {

			var object = arguments[ i ],
				uuid = object.uuid,
				index = indicesByUUID[ uuid ];

			if ( index !== undefined && index >= nCachedObjects ) {

				// move existing object into the CACHED region

				var lastCachedIndex = nCachedObjects ++,
					firstActiveObject = objects[ lastCachedIndex ];

				indicesByUUID[ firstActiveObject.uuid ] = index;
				objects[ index ] = firstActiveObject;

				indicesByUUID[ uuid ] = lastCachedIndex;
				objects[ lastCachedIndex ] = object;

				// accounting is done, now do the same for all bindings

				for ( var j = 0, m = nBindings; j !== m; ++ j ) {

					var bindingsForPath = bindings[ j ],
						firstActive = bindingsForPath[ lastCachedIndex ],
						binding = bindingsForPath[ index ];

					bindingsForPath[ index ] = firstActive;
					bindingsForPath[ lastCachedIndex ] = binding;

				}

			}

		} // for arguments

		this.nCachedObjects_ = nCachedObjects;

	},

	// remove & forget
	uncache: function( var_args ) {

		var objects = this._objects,
			nObjects = objects.length,
			nCachedObjects = this.nCachedObjects_,
			indicesByUUID = this._indicesByUUID,
			bindings = this._bindings,
			nBindings = bindings.length;

		for ( var i = 0, n = arguments.length; i !== n; ++ i ) {

			var object = arguments[ i ],
				uuid = object.uuid,
				index = indicesByUUID[ uuid ];

			if ( index !== undefined ) {

				delete indicesByUUID[ uuid ];

				if ( index < nCachedObjects ) {

					// object is cached, shrink the CACHED region

					var firstActiveIndex = -- nCachedObjects,
						lastCachedObject = objects[ firstActiveIndex ],
						lastIndex = -- nObjects,
						lastObject = objects[ lastIndex ];

					// last cached object takes this object's place
					indicesByUUID[ lastCachedObject.uuid ] = index;
					objects[ index ] = lastCachedObject;

					// last object goes to the activated slot and pop
					indicesByUUID[ lastObject.uuid ] = firstActiveIndex;
					objects[ firstActiveIndex ] = lastObject;
					objects.pop();

					// accounting is done, now do the same for all bindings

					for ( var j = 0, m = nBindings; j !== m; ++ j ) {

						var bindingsForPath = bindings[ j ],
							lastCached = bindingsForPath[ firstActiveIndex ],
							last = bindingsForPath[ lastIndex ];

						bindingsForPath[ index ] = lastCached;
						bindingsForPath[ firstActiveIndex ] = last;
						bindingsForPath.pop();

					}

				} else {

					// object is active, just swap with the last and pop

					var lastIndex = -- nObjects,
						lastObject = objects[ lastIndex ];

					indicesByUUID[ lastObject.uuid ] = index;
					objects[ index ] = lastObject;
					objects.pop();

					// accounting is done, now do the same for all bindings

					for ( var j = 0, m = nBindings; j !== m; ++ j ) {

						var bindingsForPath = bindings[ j ];

						bindingsForPath[ index ] = bindingsForPath[ lastIndex ];
						bindingsForPath.pop();

					}

				} // cached or active

			} // if object is known

		} // for arguments

		this.nCachedObjects_ = nCachedObjects;

	},

	// Internal interface used by befriended PropertyBinding.Composite:

	subscribe_: function( path, parsedPath ) {
		// returns an array of bindings for the given path that is changed
		// according to the contained objects in the group

		var indicesByPath = this._bindingsIndicesByPath,
			index = indicesByPath[ path ],
			bindings = this._bindings;

		if ( index !== undefined ) return bindings[ index ];

		var paths = this._paths,
			parsedPaths = this._parsedPaths,
			objects = this._objects,
			nObjects = objects.length,
			nCachedObjects = this.nCachedObjects_,
			bindingsForPath = new Array( nObjects );

		index = bindings.length;

		indicesByPath[ path ] = index;

		paths.push( path );
		parsedPaths.push( parsedPath );
		bindings.push( bindingsForPath );

		for ( var i = nCachedObjects,
				n = objects.length; i !== n; ++ i ) {

			var object = objects[ i ];

			bindingsForPath[ i ] =
					new THREE.PropertyBinding( object, path, parsedPath );

		}

		return bindingsForPath;

	},

	unsubscribe_: function( path ) {
		// tells the group to forget about a property path and no longer
		// update the array previously obtained with 'subscribe_'

		var indicesByPath = this._bindingsIndicesByPath,
			index = indicesByPath[ path ];

		if ( index !== undefined ) {

			var paths = this._paths,
				parsedPaths = this._parsedPaths,
				bindings = this._bindings,
				lastBindingsIndex = bindings.length - 1,
				lastBindings = bindings[ lastBindingsIndex ],
				lastBindingsPath = path[ lastBindingsIndex ];

			indicesByPath[ lastBindingsPath ] = index;

			bindings[ index ] = lastBindings;
			bindings.pop();

			parsedPaths[ index ] = parsedPaths[ lastBindingsIndex ];
			parsedPaths.pop();

			paths[ index ] = paths[ lastBindingsIndex ];
			paths.pop();

		}

	}

};


// File:src/animation/AnimationUtils.js

/**
 * @author tschw
 * @author Ben Houston / http://clara.io/
 * @author David Sarno / http://lighthaus.us/
 */

THREE.AnimationUtils = {

	// same as Array.prototype.slice, but also works on typed arrays
	arraySlice: function( array, from, to ) {

		if ( THREE.AnimationUtils.isTypedArray( array ) ) {

			return new array.constructor( array.subarray( from, to ) );

		}

		return array.slice( from, to );

	},

	// converts an array to a specific type
	convertArray: function( array, type, forceClone ) {

		if ( ! array || // let 'undefined' and 'null' pass
				! forceClone && array.constructor === type ) return array;

		if ( typeof type.BYTES_PER_ELEMENT === 'number' ) {

			return new type( array ); // create typed array

		}

		return Array.prototype.slice.call( array ); // create Array

	},

	isTypedArray: function( object ) {

		return ArrayBuffer.isView( object ) &&
				! ( object instanceof DataView );

	},

	// returns an array by which times and values can be sorted
	getKeyframeOrder: function( times ) {

		function compareTime( i, j ) {

			return times[ i ] - times[ j ];

		}

		var n = times.length;
		var result = new Array( n );
		for ( var i = 0; i !== n; ++ i ) result[ i ] = i;

		result.sort( compareTime );

		return result;

	},

	// uses the array previously returned by 'getKeyframeOrder' to sort data
	sortedArray: function( values, stride, order ) {

		var nValues = values.length;
		var result = new values.constructor( nValues );

		for ( var i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) {

			var srcOffset = order[ i ] * stride;

			for ( var j = 0; j !== stride; ++ j ) {

				result[ dstOffset ++ ] = values[ srcOffset + j ];

			}

		}

		return result;

	},

	// function for parsing AOS keyframe formats
	flattenJSON: function( jsonKeys, times, values, valuePropertyName ) {

		var i = 1, key = jsonKeys[ 0 ];

		while ( key !== undefined && key[ valuePropertyName ] === undefined ) {

			key = jsonKeys[ i ++ ];

		}

		if ( key === undefined ) return; // no data

		var value = key[ valuePropertyName ];
		if ( value === undefined ) return; // no data

		if ( Array.isArray( value ) ) {

			do {

				value = key[ valuePropertyName ];

				if ( value !== undefined ) {

					times.push( key.time );
					values.push.apply( values, value ); // push all elements

				}

				key = jsonKeys[ i ++ ];

			} while ( key !== undefined );

		} else if ( value.toArray !== undefined ) {
			// ...assume THREE.Math-ish

			do {

				value = key[ valuePropertyName ];

				if ( value !== undefined ) {

					times.push( key.time );
					value.toArray( values, values.length );

				}

				key = jsonKeys[ i ++ ];

			} while ( key !== undefined );

		} else {
			// otherwise push as-is

			do {

				value = key[ valuePropertyName ];

				if ( value !== undefined ) {

					times.push( key.time );
					values.push( value );

				}

				key = jsonKeys[ i ++ ];

			} while ( key !== undefined );

		}

	}

};

// File:src/animation/KeyframeTrack.js

/**
 *
 * A timed sequence of keyframes for a specific property.
 *
 *
 * @author Ben Houston / http://clara.io/
 * @author David Sarno / http://lighthaus.us/
 * @author tschw
 */

THREE.KeyframeTrack = function ( name, times, values, interpolation ) {

	if( name === undefined ) throw new Error( "track name is undefined" );

	if( times === undefined || times.length === 0 ) {

		throw new Error( "no keyframes in track named " + name );

	}

	this.name = name;

	this.times = THREE.AnimationUtils.convertArray( times, this.TimeBufferType );
	this.values = THREE.AnimationUtils.convertArray( values, this.ValueBufferType );

	this.setInterpolation( interpolation || this.DefaultInterpolation );

	this.validate();
	this.optimize();

};

THREE.KeyframeTrack.prototype = {

	constructor: THREE.KeyframeTrack,

	TimeBufferType: Float32Array,
	ValueBufferType: Float32Array,

	DefaultInterpolation: THREE.InterpolateLinear,

	InterpolantFactoryMethodDiscrete: function( result ) {

		return new THREE.DiscreteInterpolant(
				this.times, this.values, this.getValueSize(), result );

	},

	InterpolantFactoryMethodLinear: function( result ) {

		return new THREE.LinearInterpolant(
				this.times, this.values, this.getValueSize(), result );

	},

	InterpolantFactoryMethodSmooth: function( result ) {

		return new THREE.CubicInterpolant(
				this.times, this.values, this.getValueSize(), result );

	},

	setInterpolation: function( interpolation ) {

		var factoryMethod = undefined;

		switch ( interpolation ) {

			case THREE.InterpolateDiscrete:

				factoryMethod = this.InterpolantFactoryMethodDiscrete;

				break;

			case THREE.InterpolateLinear:

				factoryMethod = this.InterpolantFactoryMethodLinear;

				break;

			case THREE.InterpolateSmooth:

				factoryMethod = this.InterpolantFactoryMethodSmooth;

				break;

		}

		if ( factoryMethod === undefined ) {

			var message = "unsupported interpolation for " +
					this.ValueTypeName + " keyframe track named " + this.name;

			if ( this.createInterpolant === undefined ) {

				// fall back to default, unless the default itself is messed up
				if ( interpolation !== this.DefaultInterpolation ) {

					this.setInterpolation( this.DefaultInterpolation );

				} else {

					throw new Error( message ); // fatal, in this case

				}

			}

			console.warn( message );
			return;

		}

		this.createInterpolant = factoryMethod;

	},

	getInterpolation: function() {

		switch ( this.createInterpolant ) {

			case this.InterpolantFactoryMethodDiscrete:

				return THREE.InterpolateDiscrete;

			case this.InterpolantFactoryMethodLinear:

				return THREE.InterpolateLinear;

			case this.InterpolantFactoryMethodSmooth:

				return THREE.InterpolateSmooth;

		}

	},

	getValueSize: function() {

		return this.values.length / this.times.length;

	},

	// move all keyframes either forwards or backwards in time
	shift: function( timeOffset ) {

		if( timeOffset !== 0.0 ) {

			var times = this.times;

			for( var i = 0, n = times.length; i !== n; ++ i ) {

				times[ i ] += timeOffset;

			}

		}

		return this;

	},

	// scale all keyframe times by a factor (useful for frame <-> seconds conversions)
	scale: function( timeScale ) {

		if( timeScale !== 1.0 ) {

			var times = this.times;

			for( var i = 0, n = times.length; i !== n; ++ i ) {

				times[ i ] *= timeScale;

			}

		}

		return this;

	},

	// removes keyframes before and after animation without changing any values within the range [startTime, endTime].
	// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
	trim: function( startTime, endTime ) {

		var times = this.times;
		var nKeys = times.length;

		var firstKeysToRemove = 0;
		for ( var i = 1; i !== nKeys; ++ i ) {

			if ( times[i] <= startTime ) ++ firstKeysToRemove;

		}

		var lastKeysToRemove = 0;
		for ( var i = nKeys - 2; i !== 0; -- i ) {

			if ( times[i] >= endTime ) ++ lastKeysToRemove;
			else break;

		}

		// remove last keys first because it doesn't affect the position of the first keys (the otherway around doesn't work as easily)
		if( ( firstKeysToRemove + lastKeysToRemove ) !== 0 ) {

			var from = firstKeysToRemove;
			var to = nKeys - lastKeysToRemove - firstKeysToRemove;

			this.times = THREE.AnimationUtils.arraySlice( times, from, to );

			var values = this.values;
			var stride = this.getValueSize();
			this.values = THREE.AnimationUtils.arraySlice( values, from * stride, to * stride );

		}

		return this;

	},

	// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
	validate: function() {

		var valid = true;

		var valueSize = this.getValueSize();
		if ( valueSize - Math.floor( valueSize ) !== 0 ) {

			console.error( "invalid value size in track", this );
			valid = false;

		}

		var times = this.times,
			values = this.values,

			nKeys = times.length;

		if( nKeys === 0 ) {

			console.error( "track is empty", this );
			valid = false;

		}

		var prevTime = null;

		for( var i = 0; i !== nKeys; i ++ ) {

			var currTime = times[ i ];

			if ( typeof currTime === 'number' && isNaN( currTime ) ) {

				console.error( "time is not a valid number", this, i, currTime );
				valid = false;
				break;

			}

			if( prevTime !== null && prevTime > currTime ) {

				console.error( "out of order keys", this, i, currTime, prevTime );
				valid = false;
				break;

			}

			prevTime = currTime;

		}

		if ( values !== undefined ) {

			if ( THREE.AnimationUtils.isTypedArray( values ) ) {

				for ( var i = 0, n = values.length; i !== n; ++ i ) {

					var value = values[ i ];

					if ( isNaN( value ) ) {

						console.error( "value is not a valid number", this, i, value );
						valid = false;
						break;

					}

				}

			}

		}

		return valid;

	},

	// removes equivalent sequential keys as common in morph target sequences
	// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
	optimize: function() {

		var times = this.times,
			values = this.values,
			stride = this.getValueSize(),

			writeIndex = 1;

		for( var i = 1, n = times.length - 1; i <= n; ++ i ) {

			var keep = false;

			var time = times[ i ];
			var timeNext = times[ i + 1 ];

			// remove adjacent keyframes scheduled at the same time

			if ( time !== timeNext && ( i !== 1 || time !== time[ 0 ] ) ) {

				// remove unnecessary keyframes same as their neighbors
				var offset = i * stride,
					offsetP = offset - stride,
					offsetN = offset + stride;

				for ( var j = 0; j !== stride; ++ j ) {

					var value = values[ offset + j ];

					if ( value !== values[ offsetP + j ] ||
							value !== values[ offsetN + j ] ) {

						keep = true;
						break;

					}

				}

			}

			// in-place compaction

			if ( keep ) {

				if ( i !== writeIndex ) {

					times[ writeIndex ] = times[ i ];

					var readOffset = i * stride,
						writeOffset = writeIndex * stride;

					for ( var j = 0; j !== stride; ++ j ) {

						values[ writeOffset + j ] = values[ readOffset + j ];

					}


				}

				++ writeIndex;

			}

		}

		if ( writeIndex !== times.length ) {

			this.times = THREE.AnimationUtils.arraySlice( times, 0, writeIndex );
			this.values = THREE.AnimationUtils.arraySlice( values, 0, writeIndex * stride );

		}

		return this;

	}

};

// Static methods:

Object.assign( THREE.KeyframeTrack, {

	// Serialization (in static context, because of constructor invocation
	// and automatic invocation of .toJSON):

	parse: function( json ) {

		if( json.type === undefined ) {

			throw new Error( "track type undefined, can not parse" );

		}

		var trackType = THREE.KeyframeTrack._getTrackTypeForValueTypeName( json.type );

		if ( json.times === undefined ) {

			console.warn( "legacy JSON format detected, converting" );

			var times = [], values = [];

			THREE.AnimationUtils.flattenJSON( json.keys, times, values, 'value' );

			json.times = times;
			json.values = values;

		}

		// derived classes can define a static parse method
		if ( trackType.parse !== undefined ) {

			return trackType.parse( json );

		} else {

			// by default, we asssume a constructor compatible with the base
			return new trackType(
					json.name, json.times, json.values, json.interpolation );

		}

	},

	toJSON: function( track ) {

		var trackType = track.constructor;

		var json;

		// derived classes can define a static toJSON method
		if ( trackType.toJSON !== undefined ) {

			json = trackType.toJSON( track );

		} else {

			// by default, we assume the data can be serialized as-is
			json = {

				'name': track.name,
				'times': THREE.AnimationUtils.convertArray( track.times, Array ),
				'values': THREE.AnimationUtils.convertArray( track.values, Array )

			};

			var interpolation = track.getInterpolation();

			if ( interpolation !== track.DefaultInterpolation ) {

				json.interpolation = interpolation;

			}

		}

		json.type = track.ValueTypeName; // mandatory

		return json;

	},

	_getTrackTypeForValueTypeName: function( typeName ) {

		switch( typeName.toLowerCase() ) {

			case "scalar":
			case "double":
			case "float":
			case "number":
			case "integer":

				return THREE.NumberKeyframeTrack;

			case "vector":
			case "vector2":
			case "vector3":
			case "vector4":

				return THREE.VectorKeyframeTrack;

			case "color":

				return THREE.ColorKeyframeTrack;

			case "quaternion":

				return THREE.QuaternionKeyframeTrack;

			case "bool":
			case "boolean":

				return THREE.BooleanKeyframeTrack;

			case "string":

				return THREE.StringKeyframeTrack;

		};

		throw new Error( "Unsupported typeName: " + typeName );

	}

} );

// File:src/animation/PropertyBinding.js

/**
 *
 * A reference to a real property in the scene graph.
 *
 *
 * @author Ben Houston / http://clara.io/
 * @author David Sarno / http://lighthaus.us/
 * @author tschw
 */

THREE.PropertyBinding = function ( rootNode, path, parsedPath ) {

	this.path = path;
	this.parsedPath = parsedPath ||
			THREE.PropertyBinding.parseTrackName( path );

	this.node = THREE.PropertyBinding.findNode(
			rootNode, this.parsedPath.nodeName ) || rootNode;

	this.rootNode = rootNode;

};

THREE.PropertyBinding.prototype = {

	constructor: THREE.PropertyBinding,

	getValue: function getValue_unbound( targetArray, offset ) {

		this.bind();
		this.getValue( targetArray, offset );

		// Note: This class uses a State pattern on a per-method basis:
		// 'bind' sets 'this.getValue' / 'setValue' and shadows the
		// prototype version of these methods with one that represents
		// the bound state. When the property is not found, the methods
		// become no-ops.

	},

	setValue: function getValue_unbound( sourceArray, offset ) {

		this.bind();
		this.setValue( sourceArray, offset );

	},

	// create getter / setter pair for a property in the scene graph
	bind: function() {

		var targetObject = this.node,
			parsedPath = this.parsedPath,

			objectName = parsedPath.objectName,
			propertyName = parsedPath.propertyName,
			propertyIndex = parsedPath.propertyIndex;

		if ( ! targetObject ) {

			targetObject = THREE.PropertyBinding.findNode(
					this.rootNode, parsedPath.nodeName ) || this.rootNode;

			this.node = targetObject;

		}

		// set fail state so we can just 'return' on error
		this.getValue = this._getValue_unavailable;
		this.setValue = this._setValue_unavailable;

 		// ensure there is a value node
		if ( ! targetObject ) {

			console.error( "  trying to update node for track: " + this.path + " but it wasn't found." );
			return;

		}

		if( objectName ) {

			var objectIndex = parsedPath.objectIndex;

			// special cases were we need to reach deeper into the hierarchy to get the face materials....
			switch ( objectName ) {

				case 'materials':

					if( ! targetObject.material ) {

						console.error( '  can not bind to material as node does not have a material', this );
						return;

					}

					if( ! targetObject.material.materials ) {

						console.error( '  can not bind to material.materials as node.material does not have a materials array', this );
						return;

					}

					targetObject = targetObject.material.materials;

					break;

				case 'bones':

					if( ! targetObject.skeleton ) {

						console.error( '  can not bind to bones as node does not have a skeleton', this );
						return;

					}

					// potential future optimization: skip this if propertyIndex is already an integer
					// and convert the integer string to a true integer.

					targetObject = targetObject.skeleton.bones;

					// support resolving morphTarget names into indices.
					for ( var i = 0; i < targetObject.length; i ++ ) {

						if ( targetObject[i].name === objectIndex ) {

							objectIndex = i;
							break;

						}

					}

					break;

				default:

					if ( targetObject[ objectName ] === undefined ) {

						console.error( '  can not bind to objectName of node, undefined', this );
						return;

					}

					targetObject = targetObject[ objectName ];

			}


			if ( objectIndex !== undefined ) {

				if( targetObject[ objectIndex ] === undefined ) {

					console.error( "  trying to bind to objectIndex of objectName, but is undefined:", this, targetObject );
					return;

				}

				targetObject = targetObject[ objectIndex ];

			}

		}

		// resolve property
		var nodeProperty = targetObject[ propertyName ];

		if ( ! nodeProperty ) {

			var nodeName = parsedPath.nodeName;

			console.error( "  trying to update property for track: " + nodeName +
					'.' + propertyName + " but it wasn't found.", targetObject );
			return;

		}

		// determine versioning scheme
		var versioning = this.Versioning.None;

		if ( targetObject.needsUpdate !== undefined ) { // material

			versioning = this.Versioning.NeedsUpdate;
			this.targetObject = targetObject;

		} else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform

			versioning = this.Versioning.MatrixWorldNeedsUpdate;
			this.targetObject = targetObject;

		}

		// determine how the property gets bound
		var bindingType = this.BindingType.Direct;

		if ( propertyIndex !== undefined ) {
			// access a sub element of the property array (only primitives are supported right now)

			if ( propertyName === "morphTargetInfluences" ) {
				// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.

				// support resolving morphTarget names into indices.
				if ( ! targetObject.geometry ) {

					console.error( '  can not bind to morphTargetInfluences becasuse node does not have a geometry', this );
					return;

				}

				if ( ! targetObject.geometry.morphTargets ) {

					console.error( '  can not bind to morphTargetInfluences becasuse node does not have a geometry.morphTargets', this );
					return;

				}

				for ( var i = 0; i < this.node.geometry.morphTargets.length; i ++ ) {

					if ( targetObject.geometry.morphTargets[i].name === propertyIndex ) {

						propertyIndex = i;
						break;

					}

				}

			}

			bindingType = this.BindingType.ArrayElement;

			this.resolvedProperty = nodeProperty;
			this.propertyIndex = propertyIndex;

		} else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) {
			// must use copy for Object3D.Euler/Quaternion

			bindingType = this.BindingType.HasFromToArray;

			this.resolvedProperty = nodeProperty;

		} else if ( nodeProperty.length !== undefined ) {

			bindingType = this.BindingType.EntireArray;

			this.resolvedProperty = nodeProperty;

		} else {

			this.propertyName = propertyName;

		}

		// select getter / setter
		this.getValue = this.GetterByBindingType[ bindingType ];
		this.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ];

	},

	unbind: function() {

		this.node = null;

		// back to the prototype version of getValue / setValue
		// note: avoiding to mutate the shape of 'this' via 'delete'
		this.getValue = this._getValue_unbound;
		this.setValue = this._setValue_unbound;

	}

};

Object.assign( THREE.PropertyBinding.prototype, { // prototype, continued

	// these are used to "bind" a nonexistent property
	_getValue_unavailable: function() {},
	_setValue_unavailable: function() {},

	// initial state of these methods that calls 'bind'
	_getValue_unbound: THREE.PropertyBinding.prototype.getValue,
	_setValue_unbound: THREE.PropertyBinding.prototype.setValue,

	BindingType: {
		Direct: 0,
		EntireArray: 1,
		ArrayElement: 2,
		HasFromToArray: 3
	},

	Versioning: {
		None: 0,
		NeedsUpdate: 1,
		MatrixWorldNeedsUpdate: 2
	},

	GetterByBindingType: [

		function getValue_direct( buffer, offset ) {

			buffer[ offset ] = this.node[ this.propertyName ];

		},

		function getValue_array( buffer, offset ) {

			var source = this.resolvedProperty;

			for ( var i = 0, n = source.length; i !== n; ++ i ) {

				buffer[ offset ++ ] = source[ i ];

			}

		},

		function getValue_arrayElement( buffer, offset ) {

			buffer[ offset ] = this.resolvedProperty[ this.propertyIndex ];

		},

		function getValue_toArray( buffer, offset ) {

			this.resolvedProperty.toArray( buffer, offset );

		}

	],

	SetterByBindingTypeAndVersioning: [

		[
			// Direct

			function setValue_direct( buffer, offset ) {

				this.node[ this.propertyName ] = buffer[ offset ];

			},

			function setValue_direct_setNeedsUpdate( buffer, offset ) {

				this.node[ this.propertyName ] = buffer[ offset ];
				this.targetObject.needsUpdate = true;

			},

			function setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) {

				this.node[ this.propertyName ] = buffer[ offset ];
				this.targetObject.matrixWorldNeedsUpdate = true;

			}

		], [

			// EntireArray

			function setValue_array( buffer, offset ) {

				var dest = this.resolvedProperty;

				for ( var i = 0, n = dest.length; i !== n; ++ i ) {

					dest[ i ] = buffer[ offset ++ ];

				}

			},

			function setValue_array_setNeedsUpdate( buffer, offset ) {

				var dest = this.resolvedProperty;

				for ( var i = 0, n = dest.length; i !== n; ++ i ) {

					dest[ i ] = buffer[ offset ++ ];

				}

				this.targetObject.needsUpdate = true;

			},

			function setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) {

				var dest = this.resolvedProperty;

				for ( var i = 0, n = dest.length; i !== n; ++ i ) {

					dest[ i ] = buffer[ offset ++ ];

				}

				this.targetObject.matrixWorldNeedsUpdate = true;

			}

		], [

			// ArrayElement

			function setValue_arrayElement( buffer, offset ) {

				this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];

			},

			function setValue_arrayElement_setNeedsUpdate( buffer, offset ) {

				this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
				this.targetObject.needsUpdate = true;

			},

			function setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) {

				this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
				this.targetObject.matrixWorldNeedsUpdate = true;

			}

		], [

			// HasToFromArray

			function setValue_fromArray( buffer, offset ) {

				this.resolvedProperty.fromArray( buffer, offset );

			},

			function setValue_fromArray_setNeedsUpdate( buffer, offset ) {

				this.resolvedProperty.fromArray( buffer, offset );
				this.targetObject.needsUpdate = true;

			},

			function setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) {

				this.resolvedProperty.fromArray( buffer, offset );
				this.targetObject.matrixWorldNeedsUpdate = true;

			}

		]

	]

} );

THREE.PropertyBinding.Composite =
		function( targetGroup, path, optionalParsedPath ) {

	var parsedPath = optionalParsedPath ||
			THREE.PropertyBinding.parseTrackName( path );

	this._targetGroup = targetGroup;
	this._bindings = targetGroup.subscribe_( path, parsedPath );

};

THREE.PropertyBinding.Composite.prototype = {

	constructor: THREE.PropertyBinding.Composite,

	getValue: function( array, offset ) {

		this.bind(); // bind all binding

		var firstValidIndex = this._targetGroup.nCachedObjects_,
			binding = this._bindings[ firstValidIndex ];

		// and only call .getValue on the first
		if ( binding !== undefined ) binding.getValue( array, offset );

	},

	setValue: function( array, offset ) {

		var bindings = this._bindings;

		for ( var i = this._targetGroup.nCachedObjects_,
				n = bindings.length; i !== n; ++ i ) {

			bindings[ i ].setValue( array, offset );

		}

	},

	bind: function() {

		var bindings = this._bindings;

		for ( var i = this._targetGroup.nCachedObjects_,
				n = bindings.length; i !== n; ++ i ) {

			bindings[ i ].bind();

		}

	},

	unbind: function() {

		var bindings = this._bindings;

		for ( var i = this._targetGroup.nCachedObjects_,
				n = bindings.length; i !== n; ++ i ) {

			bindings[ i ].unbind();

		}

	}

};

THREE.PropertyBinding.create = function( root, path, parsedPath ) {

	if ( ! ( root instanceof THREE.AnimationObjectGroup ) ) {

		return new THREE.PropertyBinding( root, path, parsedPath );

	} else {

		return new THREE.PropertyBinding.Composite( root, path, parsedPath );

	}

};

THREE.PropertyBinding.parseTrackName = function( trackName ) {

	// matches strings in the form of:
	//    nodeName.property
	//    nodeName.property[accessor]
	//    nodeName.material.property[accessor]
	//    uuid.property[accessor]
	//    uuid.objectName[objectIndex].propertyName[propertyIndex]
	//    parentName/nodeName.property
	//    parentName/parentName/nodeName.property[index]
	//	  .bone[Armature.DEF_cog].position
	// created and tested via https://regex101.com/#javascript

	var re = /^(([\w]+\/)*)([\w-\d]+)?(\.([\w]+)(\[([\w\d\[\]\_. ]+)\])?)?(\.([\w.]+)(\[([\w\d\[\]\_. ]+)\])?)$/;
	var matches = re.exec(trackName);

	if( ! matches ) {
		throw new Error( "cannot parse trackName at all: " + trackName );
	}

    if (matches.index === re.lastIndex) {
        re.lastIndex++;
    }

	var results = {
		// directoryName: matches[1], // (tschw) currently unused
		nodeName: matches[3], 	// allowed to be null, specified root node.
		objectName: matches[5],
		objectIndex: matches[7],
		propertyName: matches[9],
		propertyIndex: matches[11]	// allowed to be null, specifies that the whole property is set.
	};

	if( results.propertyName === null || results.propertyName.length === 0 ) {
		throw new Error( "can not parse propertyName from trackName: " + trackName );
	}

	return results;

};

THREE.PropertyBinding.findNode = function( root, nodeName ) {

	if( ! nodeName || nodeName === "" || nodeName === "root" || nodeName === "." || nodeName === -1 || nodeName === root.name || nodeName === root.uuid ) {

		return root;

	}

	// search into skeleton bones.
	if( root.skeleton ) {

		var searchSkeleton = function( skeleton ) {

			for( var i = 0; i < skeleton.bones.length; i ++ ) {

				var bone = skeleton.bones[i];

				if( bone.name === nodeName ) {

					return bone;

				}
			}

			return null;

		};

		var bone = searchSkeleton( root.skeleton );

		if( bone ) {

			return bone;

		}
	}

	// search into node subtree.
	if( root.children ) {

		var searchNodeSubtree = function( children ) {

			for( var i = 0; i < children.length; i ++ ) {

				var childNode = children[i];

				if( childNode.name === nodeName || childNode.uuid === nodeName ) {

					return childNode;

				}

				var result = searchNodeSubtree( childNode.children );

				if( result ) return result;

			}

			return null;

		};

		var subTreeNode = searchNodeSubtree( root.children );

		if( subTreeNode ) {

			return subTreeNode;

		}

	}

	return null;

}

// File:src/animation/PropertyMixer.js

/**
 *
 * Buffered scene graph property that allows weighted accumulation.
 *
 *
 * @author Ben Houston / http://clara.io/
 * @author David Sarno / http://lighthaus.us/
 * @author tschw
 */

THREE.PropertyMixer = function ( binding, typeName, valueSize ) {

	this.binding = binding;
	this.valueSize = valueSize;

	var bufferType = Float64Array,
		mixFunction;

	switch ( typeName ) {

		case 'quaternion':			mixFunction = this._slerp;		break;

		case 'string':
		case 'bool':

			bufferType = Array,		mixFunction = this._select;		break;

		default:					mixFunction = this._lerp;

	}

	this.buffer = new bufferType( valueSize * 4 );
	// layout: [ incoming | accu0 | accu1 | orig ]
	//
	// interpolators can use .buffer as their .result
	// the data then goes to 'incoming'
	//
	// 'accu0' and 'accu1' are used frame-interleaved for
	// the cumulative result and are compared to detect
	// changes
	//
	// 'orig' stores the original state of the property

	this._mixBufferRegion = mixFunction;

	this.cumulativeWeight = 0;

	this.useCount = 0;
	this.referenceCount = 0;

};

THREE.PropertyMixer.prototype = {

	constructor: THREE.PropertyMixer,

	// accumulate data in the 'incoming' region into 'accu<i>'
	accumulate: function( accuIndex, weight ) {

		// note: happily accumulating nothing when weight = 0, the caller knows
		// the weight and shouldn't have made the call in the first place

		var buffer = this.buffer,
			stride = this.valueSize,
			offset = accuIndex * stride + stride,

			currentWeight = this.cumulativeWeight;

		if ( currentWeight === 0 ) {

			// accuN := incoming * weight

			for ( var i = 0; i !== stride; ++ i ) {

				buffer[ offset + i ] = buffer[ i ];

			}

			currentWeight = weight;

		} else {

			// accuN := accuN + incoming * weight

			currentWeight += weight;
			var mix = weight / currentWeight;
			this._mixBufferRegion( buffer, offset, 0, mix, stride );

		}

		this.cumulativeWeight = currentWeight;

	},

	// apply the state of 'accu<i>' to the binding when accus differ
	apply: function( accuIndex ) {

		var stride = this.valueSize,
			buffer = this.buffer,
			offset = accuIndex * stride + stride,

			weight = this.cumulativeWeight,

			binding = this.binding;

		this.cumulativeWeight = 0;

		if ( weight < 1 ) {

			// accuN := accuN + original * ( 1 - cumulativeWeight )

			var originalValueOffset = stride * 3;

			this._mixBufferRegion(
					buffer, offset, originalValueOffset, 1 - weight, stride );

		}

		for ( var i = stride, e = stride + stride; i !== e; ++ i ) {

			if ( buffer[ i ] !== buffer[ i + stride ] ) {

				// value has changed -> update scene graph

				binding.setValue( buffer, offset );
				break;

			}

		}

	},

	// remember the state of the bound property and copy it to both accus
	saveOriginalState: function() {

		var binding = this.binding;

		var buffer = this.buffer,
			stride = this.valueSize,

			originalValueOffset = stride * 3;

		binding.getValue( buffer, originalValueOffset );

		// accu[0..1] := orig -- initially detect changes against the original
		for ( var i = stride, e = originalValueOffset; i !== e; ++ i ) {

			buffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ];

		}

		this.cumulativeWeight = 0;

	},

	// apply the state previously taken via 'saveOriginalState' to the binding
	restoreOriginalState: function() {

		var originalValueOffset = this.valueSize * 3;
		this.binding.setValue( this.buffer, originalValueOffset );

	},


	// mix functions

	_select: function( buffer, dstOffset, srcOffset, t, stride ) {

		if ( t >= 0.5 ) {

			for ( var i = 0; i !== stride; ++ i ) {

				buffer[ dstOffset + i ] = buffer[ srcOffset + i ];

			}

		}

	},

	_slerp: function( buffer, dstOffset, srcOffset, t, stride ) {

		THREE.Quaternion.slerpFlat( buffer, dstOffset,
				buffer, dstOffset, buffer, srcOffset, t );

	},

	_lerp: function( buffer, dstOffset, srcOffset, t, stride ) {

		var s = 1 - t;

		for ( var i = 0; i !== stride; ++ i ) {

			var j = dstOffset + i;

			buffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t;

		}

	}

};

// File:src/animation/tracks/BooleanKeyframeTrack.js

/**
 *
 * A Track of Boolean keyframe values.
 *
 *
 * @author Ben Houston / http://clara.io/
 * @author David Sarno / http://lighthaus.us/
 * @author tschw
 */

THREE.BooleanKeyframeTrack = function ( name, times, values ) {

	THREE.KeyframeTrack.call( this, name, times, values );

};

THREE.BooleanKeyframeTrack.prototype =
		Object.assign( Object.create( THREE.KeyframeTrack.prototype ), {

	constructor: THREE.BooleanKeyframeTrack,

	ValueTypeName: 'bool',
	ValueBufferType: Array,

	DefaultInterpolation: THREE.IntepolateDiscrete,

	InterpolantFactoryMethodLinear: undefined,
	InterpolantFactoryMethodSmooth: undefined

	// Note: Actually this track could have a optimized / compressed
	// representation of a single value and a custom interpolant that
	// computes "firstValue ^ isOdd( index )".

} );

// File:src/animation/tracks/NumberKeyframeTrack.js

/**
 *
 * A Track of numeric keyframe values.
 *
 * @author Ben Houston / http://clara.io/
 * @author David Sarno / http://lighthaus.us/
 * @author tschw
 */

THREE.NumberKeyframeTrack = function ( name, times, values, interpolation ) {

	THREE.KeyframeTrack.call( this, name, times, values, interpolation );

};

THREE.NumberKeyframeTrack.prototype =
		Object.assign( Object.create( THREE.KeyframeTrack.prototype ), {

	constructor: THREE.NumberKeyframeTrack,

	ValueTypeName: 'number',

	// ValueBufferType is inherited

	// DefaultInterpolation is inherited

} );

// File:src/animation/tracks/QuaternionKeyframeTrack.js

/**
 *
 * A Track of quaternion keyframe values.
 *
 * @author Ben Houston / http://clara.io/
 * @author David Sarno / http://lighthaus.us/
 * @author tschw
 */

THREE.QuaternionKeyframeTrack = function ( name, times, values, interpolation ) {

	THREE.KeyframeTrack.call( this, name, times, values, interpolation );

};

THREE.QuaternionKeyframeTrack.prototype =
		Object.assign( Object.create( THREE.KeyframeTrack.prototype ), {

	constructor: THREE.QuaternionKeyframeTrack,

	ValueTypeName: 'quaternion',

	// ValueBufferType is inherited

	DefaultInterpolation: THREE.InterpolateLinear,

	InterpolantFactoryMethodLinear: function( result ) {

		return new THREE.QuaternionLinearInterpolant(
				this.times, this.values, this.getValueSize(), result );

	},

	InterpolantFactoryMethodSmooth: undefined // not yet implemented

} );

// File:src/animation/tracks/StringKeyframeTrack.js

/**
 *
 * A Track that interpolates Strings
 *
 *
 * @author Ben Houston / http://clara.io/
 * @author David Sarno / http://lighthaus.us/
 * @author tschw
 */

THREE.StringKeyframeTrack = function ( name, times, values, interpolation ) {

	THREE.KeyframeTrack.call( this, name, times, values, interpolation );

};

THREE.StringKeyframeTrack.prototype =
		Object.assign( Object.create( THREE.KeyframeTrack.prototype ), {

	constructor: THREE.StringKeyframeTrack,

	ValueTypeName: 'string',
	ValueBufferType: Array,

	DefaultInterpolation: THREE.IntepolateDiscrete,

	InterpolantFactoryMethodLinear: undefined,

	InterpolantFactoryMethodSmooth: undefined

} );

// File:src/animation/tracks/VectorKeyframeTrack.js

/**
 *
 * A Track of vectored keyframe values.
 *
 *
 * @author Ben Houston / http://clara.io/
 * @author David Sarno / http://lighthaus.us/
 * @author tschw
 */

THREE.VectorKeyframeTrack = function ( name, times, values, interpolation ) {

	THREE.KeyframeTrack.call( this, name, times, values, interpolation );

};

THREE.VectorKeyframeTrack.prototype =
		Object.assign( Object.create( THREE.KeyframeTrack.prototype ), {

	constructor: THREE.VectorKeyframeTrack,

	ValueTypeName: 'vector'

	// ValueBufferType is inherited

	// DefaultInterpolation is inherited

} );

// File:src/audio/Audio.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Audio = function ( listener ) {

	THREE.Object3D.call( this );

	this.type = 'Audio';

	this.context = listener.context;
	this.source = this.context.createBufferSource();
	this.source.onended = this.onEnded.bind( this );

	this.gain = this.context.createGain();
	this.gain.connect( listener.getInput() );

	this.autoplay = false;

	this.startTime = 0;
	this.playbackRate = 1;
	this.isPlaying = false;
	this.hasPlaybackControl = true;
	this.sourceType = 'empty';

	this.filter = null;

};

THREE.Audio.prototype = Object.create( THREE.Object3D.prototype );
THREE.Audio.prototype.constructor = THREE.Audio;

THREE.Audio.prototype.getOutput = function () {

	return this.gain;

};

THREE.Audio.prototype.load = function ( file ) {

	var buffer = new THREE.AudioBuffer( this.context );
	buffer.load( file );

	this.setBuffer( buffer );

	return this;

};

THREE.Audio.prototype.setNodeSource = function ( audioNode ) {

	this.hasPlaybackControl = false;
	this.sourceType = 'audioNode';
	this.source = audioNode;
	this.connect();

	return this;

};

THREE.Audio.prototype.setBuffer = function ( audioBuffer ) {

	var scope = this;

	audioBuffer.onReady( function( buffer ) {

		scope.source.buffer = buffer;
		scope.sourceType = 'buffer';
		if ( scope.autoplay ) scope.play();

	} );

	return this;

};

THREE.Audio.prototype.play = function () {

	if ( this.isPlaying === true ) {

		console.warn( 'THREE.Audio: Audio is already playing.' );
		return;

	}

	if ( this.hasPlaybackControl === false ) {

		console.warn( 'THREE.Audio: this Audio has no playback control.' );
		return;

	}

	var source = this.context.createBufferSource();

	source.buffer = this.source.buffer;
	source.loop = this.source.loop;
	source.onended = this.source.onended;
	source.start( 0, this.startTime );
	source.playbackRate.value = this.playbackRate;

	this.isPlaying = true;

	this.source = source;

	this.connect();

};

THREE.Audio.prototype.pause = function () {

	if ( this.hasPlaybackControl === false ) {

		console.warn( 'THREE.Audio: this Audio has no playback control.' );
		return;

	}

	this.source.stop();
	this.startTime = this.context.currentTime;

};

THREE.Audio.prototype.stop = function () {

	if ( this.hasPlaybackControl === false ) {

		console.warn( 'THREE.Audio: this Audio has no playback control.' );
		return;

	}

	this.source.stop();
	this.startTime = 0;

};

THREE.Audio.prototype.connect = function () {

	if ( this.filter !== null ) {

		this.source.connect( this.filter );
		this.filter.connect( this.getOutput() );

	} else {

		this.source.connect( this.getOutput() );

	}

};

THREE.Audio.prototype.disconnect = function () {

	if ( this.filter !== null ) {

		this.source.disconnect( this.filter );
		this.filter.disconnect( this.getOutput() );

	} else {

		this.source.disconnect( this.getOutput() );

	}

};

THREE.Audio.prototype.getFilter = function () {

	return this.filter;

};

THREE.Audio.prototype.setFilter = function ( value ) {

	if ( value === undefined ) value = null;

	if ( this.isPlaying === true ) {

		this.disconnect();
		this.filter = value;
		this.connect();

	} else {

		this.filter = value;

	}

};

THREE.Audio.prototype.setPlaybackRate = function ( value ) {

	if ( this.hasPlaybackControl === false ) {

		console.warn( 'THREE.Audio: this Audio has no playback control.' );
		return;

	}

	this.playbackRate = value;

	if ( this.isPlaying === true ) {

		this.source.playbackRate.value = this.playbackRate;

	}

};

THREE.Audio.prototype.getPlaybackRate = function () {

	return this.playbackRate;

};

THREE.Audio.prototype.onEnded = function() {

	this.isPlaying = false;

};

THREE.Audio.prototype.setLoop = function ( value ) {

	if ( this.hasPlaybackControl === false ) {

		console.warn( 'THREE.Audio: this Audio has no playback control.' );
		return;

	}

	this.source.loop = value;

};

THREE.Audio.prototype.getLoop = function () {

	if ( this.hasPlaybackControl === false ) {

		console.warn( 'THREE.Audio: this Audio has no playback control.' );
		return false;

	}

	return this.source.loop;

};


THREE.Audio.prototype.setVolume = function ( value ) {

	this.gain.gain.value = value;

};

THREE.Audio.prototype.getVolume = function () {

	return this.gain.gain.value;

};

// File:src/audio/AudioAnalyser.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.AudioAnalyser = function ( audio, fftSize ) {

	this.analyser = audio.context.createAnalyser();
	this.analyser.fftSize = fftSize !== undefined ? fftSize : 2048;

	this.data = new Uint8Array( this.analyser.frequencyBinCount );

	audio.getOutput().connect( this.analyser );

};

THREE.AudioAnalyser.prototype = {

	constructor: THREE.AudioAnalyser,

	getData: function () {

		this.analyser.getByteFrequencyData( this.data );
		return this.data;

	}

};

// File:src/audio/AudioBuffer.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.AudioBuffer = function ( context ) {

	this.context = context;
	this.ready = false;
	this.readyCallbacks = [];

};

THREE.AudioBuffer.prototype.load = function ( file ) {

	var scope = this;

	var request = new XMLHttpRequest();
	request.open( 'GET', file, true );
	request.responseType = 'arraybuffer';
	request.onload = function ( e ) {

		scope.context.decodeAudioData( this.response, function ( buffer ) {

			scope.buffer = buffer;
			scope.ready = true;

			for ( var i = 0; i < scope.readyCallbacks.length; i ++ ) {

				scope.readyCallbacks[ i ]( scope.buffer );

			}

			scope.readyCallbacks = [];

		} );

	};
	request.send();

	return this;

};

THREE.AudioBuffer.prototype.onReady = function ( callback ) {

	if ( this.ready ) {

		callback( this.buffer );

	} else {

		this.readyCallbacks.push( callback );

	}

};

// File:src/audio/PositionalAudio.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.PositionalAudio = function ( listener ) {

	THREE.Audio.call( this, listener );

	this.panner = this.context.createPanner();
	this.panner.connect( this.gain );

};

THREE.PositionalAudio.prototype = Object.create( THREE.Audio.prototype );
THREE.PositionalAudio.prototype.constructor = THREE.PositionalAudio;

THREE.PositionalAudio.prototype.getOutput = function () {

	return this.panner;

};

THREE.PositionalAudio.prototype.setRefDistance = function ( value ) {

	this.panner.refDistance = value;

};

THREE.PositionalAudio.prototype.getRefDistance = function () {

	return this.panner.refDistance;

};

THREE.PositionalAudio.prototype.setRolloffFactor = function ( value ) {

	this.panner.rolloffFactor = value;

};

THREE.PositionalAudio.prototype.getRolloffFactor = function () {

	return this.panner.rolloffFactor;

};

THREE.PositionalAudio.prototype.setDistanceModel = function ( value ) {

	this.panner.distanceModel = value;

};

THREE.PositionalAudio.prototype.getDistanceModel = function () {

	return this.panner.distanceModel;

};

THREE.PositionalAudio.prototype.setMaxDistance = function ( value ) {

	this.panner.maxDistance = value;

};

THREE.PositionalAudio.prototype.getMaxDistance = function () {

	return this.panner.maxDistance;

};

THREE.PositionalAudio.prototype.updateMatrixWorld = ( function () {

	var position = new THREE.Vector3();

	return function updateMatrixWorld( force ) {

		THREE.Object3D.prototype.updateMatrixWorld.call( this, force );

		position.setFromMatrixPosition( this.matrixWorld );

		this.panner.setPosition( position.x, position.y, position.z );

	};

} )();

// File:src/audio/AudioListener.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.AudioListener = function () {

	THREE.Object3D.call( this );

	this.type = 'AudioListener';

	this.context = new ( window.AudioContext || window.webkitAudioContext )();

	this.gain = this.context.createGain();
	this.gain.connect( this.context.destination );

	this.filter = null;

};

THREE.AudioListener.prototype = Object.create( THREE.Object3D.prototype );
THREE.AudioListener.prototype.constructor = THREE.AudioListener;

THREE.AudioListener.prototype.getInput = function () {

	return this.gain;

};

THREE.AudioListener.prototype.removeFilter = function ( ) {

	if ( this.filter !== null ) {

		this.gain.disconnect( this.filter );
		this.filter.disconnect( this.context.destination );
		this.gain.connect( this.context.destination );
		this.filter = null;

	}

};

THREE.AudioListener.prototype.setFilter = function ( value ) {

	if ( this.filter !== null ) {

		this.gain.disconnect( this.filter );
		this.filter.disconnect( this.context.destination );

	} else {

		this.gain.disconnect( this.context.destination );

	}

	this.filter = value;
	this.gain.connect( this.filter );
	this.filter.connect( this.context.destination );

};

THREE.AudioListener.prototype.getFilter = function () {

	return this.filter;

};

THREE.AudioListener.prototype.setMasterVolume = function ( value ) {

	this.gain.gain.value = value;

};

THREE.AudioListener.prototype.getMasterVolume = function () {

	return this.gain.gain.value;

};


THREE.AudioListener.prototype.updateMatrixWorld = ( function () {

	var position = new THREE.Vector3();
	var quaternion = new THREE.Quaternion();
	var scale = new THREE.Vector3();

	var orientation = new THREE.Vector3();

	return function updateMatrixWorld( force ) {

		THREE.Object3D.prototype.updateMatrixWorld.call( this, force );

		var listener = this.context.listener;
		var up = this.up;

		this.matrixWorld.decompose( position, quaternion, scale );

		orientation.set( 0, 0, - 1 ).applyQuaternion( quaternion );

		listener.setPosition( position.x, position.y, position.z );
		listener.setOrientation( orientation.x, orientation.y, orientation.z, up.x, up.y, up.z );

	};

} )();

// File:src/cameras/Camera.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author mikael emtinger / http://gomo.se/
 * @author WestLangley / http://github.com/WestLangley
*/

THREE.Camera = function () {

	THREE.Object3D.call( this );

	this.type = 'Camera';

	this.matrixWorldInverse = new THREE.Matrix4();
	this.projectionMatrix = new THREE.Matrix4();

};

THREE.Camera.prototype = Object.create( THREE.Object3D.prototype );
THREE.Camera.prototype.constructor = THREE.Camera;

THREE.Camera.prototype.getWorldDirection = function () {

	var quaternion = new THREE.Quaternion();

	return function ( optionalTarget ) {

		var result = optionalTarget || new THREE.Vector3();

		this.getWorldQuaternion( quaternion );

		return result.set( 0, 0, - 1 ).applyQuaternion( quaternion );

	};

}();

THREE.Camera.prototype.lookAt = function () {

	// This routine does not support cameras with rotated and/or translated parent(s)

	var m1 = new THREE.Matrix4();

	return function ( vector ) {

		m1.lookAt( this.position, vector, this.up );

		this.quaternion.setFromRotationMatrix( m1 );

	};

}();

THREE.Camera.prototype.clone = function () {

	return new this.constructor().copy( this );

};

THREE.Camera.prototype.copy = function ( source ) {

	THREE.Object3D.prototype.copy.call( this, source );

	this.matrixWorldInverse.copy( source.matrixWorldInverse );
	this.projectionMatrix.copy( source.projectionMatrix );

	return this;

};

// File:src/cameras/CubeCamera.js

/**
 * Camera for rendering cube maps
 *	- renders scene into axis-aligned cube
 *
 * @author alteredq / http://alteredqualia.com/
 */

THREE.CubeCamera = function ( near, far, cubeResolution ) {

	THREE.Object3D.call( this );

	this.type = 'CubeCamera';

	var fov = 90, aspect = 1;

	var cameraPX = new THREE.PerspectiveCamera( fov, aspect, near, far );
	cameraPX.up.set( 0, - 1, 0 );
	cameraPX.lookAt( new THREE.Vector3( 1, 0, 0 ) );
	this.add( cameraPX );

	var cameraNX = new THREE.PerspectiveCamera( fov, aspect, near, far );
	cameraNX.up.set( 0, - 1, 0 );
	cameraNX.lookAt( new THREE.Vector3( - 1, 0, 0 ) );
	this.add( cameraNX );

	var cameraPY = new THREE.PerspectiveCamera( fov, aspect, near, far );
	cameraPY.up.set( 0, 0, 1 );
	cameraPY.lookAt( new THREE.Vector3( 0, 1, 0 ) );
	this.add( cameraPY );

	var cameraNY = new THREE.PerspectiveCamera( fov, aspect, near, far );
	cameraNY.up.set( 0, 0, - 1 );
	cameraNY.lookAt( new THREE.Vector3( 0, - 1, 0 ) );
	this.add( cameraNY );

	var cameraPZ = new THREE.PerspectiveCamera( fov, aspect, near, far );
	cameraPZ.up.set( 0, - 1, 0 );
	cameraPZ.lookAt( new THREE.Vector3( 0, 0, 1 ) );
	this.add( cameraPZ );

	var cameraNZ = new THREE.PerspectiveCamera( fov, aspect, near, far );
	cameraNZ.up.set( 0, - 1, 0 );
	cameraNZ.lookAt( new THREE.Vector3( 0, 0, - 1 ) );
	this.add( cameraNZ );

	var options = { format: THREE.RGBFormat, magFilter: THREE.LinearFilter, minFilter: THREE.LinearFilter };

	this.renderTarget = new THREE.WebGLRenderTargetCube( cubeResolution, cubeResolution, options );

	this.updateCubeMap = function ( renderer, scene ) {

		if ( this.parent === null ) this.updateMatrixWorld();

		var renderTarget = this.renderTarget;
		var generateMipmaps = renderTarget.texture.generateMipmaps;

		renderTarget.texture.generateMipmaps = false;

		renderTarget.activeCubeFace = 0;
		renderer.render( scene, cameraPX, renderTarget );

		renderTarget.activeCubeFace = 1;
		renderer.render( scene, cameraNX, renderTarget );

		renderTarget.activeCubeFace = 2;
		renderer.render( scene, cameraPY, renderTarget );

		renderTarget.activeCubeFace = 3;
		renderer.render( scene, cameraNY, renderTarget );

		renderTarget.activeCubeFace = 4;
		renderer.render( scene, cameraPZ, renderTarget );

		renderTarget.texture.generateMipmaps = generateMipmaps;

		renderTarget.activeCubeFace = 5;
		renderer.render( scene, cameraNZ, renderTarget );

		renderer.setRenderTarget( null );

	};

};

THREE.CubeCamera.prototype = Object.create( THREE.Object3D.prototype );
THREE.CubeCamera.prototype.constructor = THREE.CubeCamera;

// File:src/cameras/OrthographicCamera.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.OrthographicCamera = function ( left, right, top, bottom, near, far ) {

	THREE.Camera.call( this );

	this.type = 'OrthographicCamera';

	this.zoom = 1;

	this.left = left;
	this.right = right;
	this.top = top;
	this.bottom = bottom;

	this.near = ( near !== undefined ) ? near : 0.1;
	this.far = ( far !== undefined ) ? far : 2000;

	this.updateProjectionMatrix();

};

THREE.OrthographicCamera.prototype = Object.create( THREE.Camera.prototype );
THREE.OrthographicCamera.prototype.constructor = THREE.OrthographicCamera;

THREE.OrthographicCamera.prototype.updateProjectionMatrix = function () {

	var dx = ( this.right - this.left ) / ( 2 * this.zoom );
	var dy = ( this.top - this.bottom ) / ( 2 * this.zoom );
	var cx = ( this.right + this.left ) / 2;
	var cy = ( this.top + this.bottom ) / 2;

	this.projectionMatrix.makeOrthographic( cx - dx, cx + dx, cy + dy, cy - dy, this.near, this.far );

};

THREE.OrthographicCamera.prototype.copy = function ( source ) {

	THREE.Camera.prototype.copy.call( this, source );

	this.left = source.left;
	this.right = source.right;
	this.top = source.top;
	this.bottom = source.bottom;
	this.near = source.near;
	this.far = source.far;

	this.zoom = source.zoom;

	return this;

};

THREE.OrthographicCamera.prototype.toJSON = function ( meta ) {

	var data = THREE.Object3D.prototype.toJSON.call( this, meta );

	data.object.zoom = this.zoom;
	data.object.left = this.left;
	data.object.right = this.right;
	data.object.top = this.top;
	data.object.bottom = this.bottom;
	data.object.near = this.near;
	data.object.far = this.far;

	return data;

};

// File:src/cameras/PerspectiveCamera.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author greggman / http://games.greggman.com/
 * @author zz85 / http://www.lab4games.net/zz85/blog
 */

THREE.PerspectiveCamera = function ( fov, aspect, near, far ) {

	THREE.Camera.call( this );

	this.type = 'PerspectiveCamera';

	this.zoom = 1;

	this.fov = fov !== undefined ? fov : 50;
	this.aspect = aspect !== undefined ? aspect : 1;
	this.near = near !== undefined ? near : 0.1;
	this.far = far !== undefined ? far : 2000;

	this.updateProjectionMatrix();

};

THREE.PerspectiveCamera.prototype = Object.create( THREE.Camera.prototype );
THREE.PerspectiveCamera.prototype.constructor = THREE.PerspectiveCamera;


/**
 * Uses Focal Length (in mm) to estimate and set FOV
 * 35mm (full-frame) camera is used if frame size is not specified;
 * Formula based on http://www.bobatkins.com/photography/technical/field_of_view.html
 */

THREE.PerspectiveCamera.prototype.setLens = function ( focalLength, frameHeight ) {

	if ( frameHeight === undefined ) frameHeight = 24;

	this.fov = 2 * THREE.Math.radToDeg( Math.atan( frameHeight / ( focalLength * 2 ) ) );
	this.updateProjectionMatrix();

};


/**
 * Sets an offset in a larger frustum. This is useful for multi-window or
 * multi-monitor/multi-machine setups.
 *
 * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
 * the monitors are in grid like this
 *
 *   +---+---+---+
 *   | A | B | C |
 *   +---+---+---+
 *   | D | E | F |
 *   +---+---+---+
 *
 * then for each monitor you would call it like this
 *
 *   var w = 1920;
 *   var h = 1080;
 *   var fullWidth = w * 3;
 *   var fullHeight = h * 2;
 *
 *   --A--
 *   camera.setOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
 *   --B--
 *   camera.setOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
 *   --C--
 *   camera.setOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
 *   --D--
 *   camera.setOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
 *   --E--
 *   camera.setOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
 *   --F--
 *   camera.setOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
 *
 *   Note there is no reason monitors have to be the same size or in a grid.
 */

THREE.PerspectiveCamera.prototype.setViewOffset = function ( fullWidth, fullHeight, x, y, width, height ) {

	this.fullWidth = fullWidth;
	this.fullHeight = fullHeight;
	this.x = x;
	this.y = y;
	this.width = width;
	this.height = height;

	this.updateProjectionMatrix();

};


THREE.PerspectiveCamera.prototype.updateProjectionMatrix = function () {

	var fov = THREE.Math.radToDeg( 2 * Math.atan( Math.tan( THREE.Math.degToRad( this.fov ) * 0.5 ) / this.zoom ) );

	if ( this.fullWidth ) {

		var aspect = this.fullWidth / this.fullHeight;
		var top = Math.tan( THREE.Math.degToRad( fov * 0.5 ) ) * this.near;
		var bottom = - top;
		var left = aspect * bottom;
		var right = aspect * top;
		var width = Math.abs( right - left );
		var height = Math.abs( top - bottom );

		this.projectionMatrix.makeFrustum(
			left + this.x * width / this.fullWidth,
			left + ( this.x + this.width ) * width / this.fullWidth,
			top - ( this.y + this.height ) * height / this.fullHeight,
			top - this.y * height / this.fullHeight,
			this.near,
			this.far
		);

	} else {

		this.projectionMatrix.makePerspective( fov, this.aspect, this.near, this.far );

	}

};

THREE.PerspectiveCamera.prototype.copy = function ( source ) {

	THREE.Camera.prototype.copy.call( this, source );

	this.fov = source.fov;
	this.aspect = source.aspect;
	this.near = source.near;
	this.far = source.far;

	this.zoom = source.zoom;

	return this;

};

THREE.PerspectiveCamera.prototype.toJSON = function ( meta ) {

	var data = THREE.Object3D.prototype.toJSON.call( this, meta );

	data.object.zoom = this.zoom;
	data.object.fov = this.fov;
	data.object.aspect = this.aspect;
	data.object.near = this.near;
	data.object.far = this.far;

	return data;

};

// File:src/cameras/StereoCamera.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.StereoCamera = function ( fov, aspect, near, far ) {

	THREE.PerspectiveCamera.call( this, fov, aspect, near, far );

	this.type = 'StereoCamera';

	this.focalLength = 125;

	this.cameraL = new THREE.PerspectiveCamera();
	this.cameraL.layers.enable( 1 );
	this.cameraL.matrixAutoUpdate = false;

	this.cameraR = new THREE.PerspectiveCamera();
	this.cameraR.layers.enable( 2 );
	this.cameraR.matrixAutoUpdate = false;

};

THREE.StereoCamera.prototype = Object.create( THREE.PerspectiveCamera.prototype );
THREE.StereoCamera.prototype.constructor = THREE.StereoCamera;

THREE.StereoCamera.prototype.updateMatrixWorld = ( function () {

	var focalLength, fov, aspect, near, far;

	var eyeRight = new THREE.Matrix4();
	var eyeLeft = new THREE.Matrix4();

	return function updateMatrixWorld ( force ) {

		THREE.Object3D.prototype.updateMatrixWorld.call( this, force );

		var needsUpdate = focalLength !== this.focalLength || fov !== this.fov ||
											aspect !== this.aspect || near !== this.near ||
											far !== this.far;

		if ( needsUpdate ) {

			focalLength = this.focalLength;
			fov = this.fov;
			aspect = this.aspect;
			near = this.near;
			far = this.far;

			// Off-axis stereoscopic effect based on
			// http://paulbourke.net/stereographics/stereorender/

			var projectionMatrix = this.projectionMatrix.clone();
			var eyeSep = focalLength / 30 * 0.5;
			var eyeSepOnProjection = eyeSep * near / focalLength;
			var ymax = near * Math.tan( THREE.Math.degToRad( fov * 0.5 ) );
			var xmin, xmax;

			// translate xOffset

			eyeLeft.elements[ 12 ] = - eyeSep;
			eyeRight.elements[ 12 ] = eyeSep;

			// for left eye

			xmin = - ymax * aspect + eyeSepOnProjection;
			xmax = ymax * aspect + eyeSepOnProjection;

			projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
			projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );

			this.cameraL.projectionMatrix.copy( projectionMatrix );

			// for right eye

			xmin = - ymax * aspect - eyeSepOnProjection;
			xmax = ymax * aspect - eyeSepOnProjection;

			projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
			projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );

			this.cameraR.projectionMatrix.copy( projectionMatrix );

		}

		this.cameraL.matrixWorld.copy( this.matrixWorld ).multiply( eyeLeft );
		this.cameraR.matrixWorld.copy( this.matrixWorld ).multiply( eyeRight );

	};

} )();

// File:src/lights/Light.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 */

THREE.Light = function ( color, intensity ) {

	THREE.Object3D.call( this );

	this.type = 'Light';

	this.color = new THREE.Color( color );
	this.intensity = intensity !== undefined ? intensity : 1;

	this.receiveShadow = undefined;

};

THREE.Light.prototype = Object.create( THREE.Object3D.prototype );
THREE.Light.prototype.constructor = THREE.Light;

THREE.Light.prototype.copy = function ( source ) {

	THREE.Object3D.prototype.copy.call( this, source );

	this.color.copy( source.color );
	this.intensity = source.intensity;

	return this;

};

THREE.Light.prototype.toJSON = function ( meta ) {

	var data = THREE.Object3D.prototype.toJSON.call( this, meta );

	data.object.color = this.color.getHex();
	data.object.intensity = this.intensity;

	if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();

	if ( this.distance !== undefined ) data.object.distance = this.distance;
	if ( this.angle !== undefined ) data.object.angle = this.angle;
	if ( this.decay !== undefined ) data.object.decay = this.decay;
	if ( this.exponent !== undefined ) data.object.exponent = this.exponent;

	return data;

};

// File:src/lights/LightShadow.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.LightShadow = function ( camera ) {

	this.camera = camera;

	this.bias = 0;
	this.darkness = 1;

	this.mapSize = new THREE.Vector2( 512, 512 );

	this.map = null;
	this.matrix = null;

};

THREE.LightShadow.prototype = {

	constructor: THREE.LightShadow,

	copy: function ( source ) {

		this.camera = source.camera.clone();

		this.bias = source.bias;
		this.darkness = source.darkness;

		this.mapSize.copy( source.mapSize );

		return this;

	},

	clone: function () {

		return new this.constructor().copy( this );

	}

};

// File:src/lights/AmbientLight.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.AmbientLight = function ( color, intensity ) {

	THREE.Light.call( this, color, intensity );

	this.type = 'AmbientLight';

	this.castShadow = undefined;

};

THREE.AmbientLight.prototype = Object.create( THREE.Light.prototype );
THREE.AmbientLight.prototype.constructor = THREE.AmbientLight;

// File:src/lights/DirectionalLight.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 */

THREE.DirectionalLight = function ( color, intensity ) {

	THREE.Light.call( this, color, intensity );

	this.type = 'DirectionalLight';

	this.position.set( 0, 1, 0 );
	this.updateMatrix();

	this.target = new THREE.Object3D();

	this.shadow = new THREE.LightShadow( new THREE.OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );

};

THREE.DirectionalLight.prototype = Object.create( THREE.Light.prototype );
THREE.DirectionalLight.prototype.constructor = THREE.DirectionalLight;

THREE.DirectionalLight.prototype.copy = function ( source ) {

	THREE.Light.prototype.copy.call( this, source );

	this.target = source.target.clone();

	this.shadow = source.shadow.clone();

	return this;

};

// File:src/lights/HemisphereLight.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.HemisphereLight = function ( skyColor, groundColor, intensity ) {

	THREE.Light.call( this, skyColor, intensity );

	this.type = 'HemisphereLight';

	this.castShadow = undefined;

	this.position.set( 0, 1, 0 );
	this.updateMatrix();

	this.groundColor = new THREE.Color( groundColor );

};

THREE.HemisphereLight.prototype = Object.create( THREE.Light.prototype );
THREE.HemisphereLight.prototype.constructor = THREE.HemisphereLight;

THREE.HemisphereLight.prototype.copy = function ( source ) {

	THREE.Light.prototype.copy.call( this, source );

	this.groundColor.copy( source.groundColor );

	return this;

};

// File:src/lights/PointLight.js

/**
 * @author mrdoob / http://mrdoob.com/
 */


THREE.PointLight = function ( color, intensity, distance, decay ) {

	THREE.Light.call( this, color, intensity );

	this.type = 'PointLight';

	this.distance = ( distance !== undefined ) ? distance : 0;
	this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.

	this.shadow = new THREE.LightShadow( new THREE.PerspectiveCamera( 90, 1, 0.5, 500 ) );

};

THREE.PointLight.prototype = Object.create( THREE.Light.prototype );
THREE.PointLight.prototype.constructor = THREE.PointLight;

THREE.PointLight.prototype.copy = function ( source ) {

	THREE.Light.prototype.copy.call( this, source );

	this.distance = source.distance;
	this.decay = source.decay;

	this.shadow = source.shadow.clone();

	return this;

};

// File:src/lights/SpotLight.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.SpotLight = function ( color, intensity, distance, angle, exponent, decay ) {

	THREE.Light.call( this, color, intensity );

	this.type = 'SpotLight';

	this.position.set( 0, 1, 0 );
	this.updateMatrix();

	this.target = new THREE.Object3D();

	this.distance = ( distance !== undefined ) ? distance : 0;
	this.angle = ( angle !== undefined ) ? angle : Math.PI / 3;
	this.exponent = ( exponent !== undefined ) ? exponent : 10;
	this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.

	this.shadow = new THREE.LightShadow( new THREE.PerspectiveCamera( 50, 1, 0.5, 500 ) );

};

THREE.SpotLight.prototype = Object.create( THREE.Light.prototype );
THREE.SpotLight.prototype.constructor = THREE.SpotLight;

THREE.SpotLight.prototype.copy = function ( source ) {

	THREE.Light.prototype.copy.call( this, source );

	this.distance = source.distance;
	this.angle = source.angle;
	this.exponent = source.exponent;
	this.decay = source.decay;

	this.target = source.target.clone();

	this.shadow = source.shadow.clone();

	return this;

};

// File:src/loaders/Cache.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Cache = {

	enabled: false,

	files: {},

	add: function ( key, file ) {

		if ( this.enabled === false ) return;

		// console.log( 'THREE.Cache', 'Adding key:', key );

		this.files[ key ] = file;

	},

	get: function ( key ) {

		if ( this.enabled === false ) return;

		// console.log( 'THREE.Cache', 'Checking key:', key );

		return this.files[ key ];

	},

	remove: function ( key ) {

		delete this.files[ key ];

	},

	clear: function () {

		this.files = {};

	}

};

// File:src/loaders/Loader.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.Loader = function () {

	this.onLoadStart = function () {};
	this.onLoadProgress = function () {};
	this.onLoadComplete = function () {};

};

THREE.Loader.prototype = {

	constructor: THREE.Loader,

	crossOrigin: undefined,

	extractUrlBase: function ( url ) {

		var parts = url.split( '/' );

		if ( parts.length === 1 ) return './';

		parts.pop();

		return parts.join( '/' ) + '/';

	},

	initMaterials: function ( materials, texturePath, crossOrigin ) {

		var array = [];

		for ( var i = 0; i < materials.length; ++ i ) {

			array[ i ] = this.createMaterial( materials[ i ], texturePath, crossOrigin );

		}

		return array;

	},

	createMaterial: ( function () {

		var color, textureLoader, materialLoader;

		return function ( m, texturePath, crossOrigin ) {

			if ( color === undefined ) color = new THREE.Color();
			if ( textureLoader === undefined ) textureLoader = new THREE.TextureLoader();
			if ( materialLoader === undefined ) materialLoader = new THREE.MaterialLoader();

			// convert from old material format

			var textures = {};

			function loadTexture( path, repeat, offset, wrap, anisotropy ) {

				var fullPath = texturePath + path;
				var loader = THREE.Loader.Handlers.get( fullPath );

				var texture;

				if ( loader !== null ) {

					texture = loader.load( fullPath );

				} else {

					textureLoader.setCrossOrigin( crossOrigin );
					texture = textureLoader.load( fullPath );

				}

				if ( repeat !== undefined ) {

					texture.repeat.fromArray( repeat );

					if ( repeat[ 0 ] !== 1 ) texture.wrapS = THREE.RepeatWrapping;
					if ( repeat[ 1 ] !== 1 ) texture.wrapT = THREE.RepeatWrapping;

				}

				if ( offset !== undefined ) {

					texture.offset.fromArray( offset );

				}

				if ( wrap !== undefined ) {

					if ( wrap[ 0 ] === 'repeat' ) texture.wrapS = THREE.RepeatWrapping;
					if ( wrap[ 0 ] === 'mirror' ) texture.wrapS = THREE.MirroredRepeatWrapping;

					if ( wrap[ 1 ] === 'repeat' ) texture.wrapT = THREE.RepeatWrapping;
					if ( wrap[ 1 ] === 'mirror' ) texture.wrapT = THREE.MirroredRepeatWrapping;

				}

				if ( anisotropy !== undefined ) {

					texture.anisotropy = anisotropy;

				}

				var uuid = THREE.Math.generateUUID();

				textures[ uuid ] = texture;

				return uuid;

			}

			//

			var json = {
				uuid: THREE.Math.generateUUID(),
				type: 'MeshLambertMaterial'
			};

			for ( var name in m ) {

				var value = m[ name ];

				switch ( name ) {
					case 'DbgColor':
					case 'DbgIndex':
					case 'opticalDensity':
					case 'illumination':
						break;
					case 'DbgName':
						json.name = value;
						break;
					case 'blending':
						json.blending = THREE[ value ];
						break;
					case 'colorAmbient':
						console.warn( 'THREE.Loader.createMaterial: colorAmbient is no longer supported' );
						break;
					case 'colorDiffuse':
						json.color = color.fromArray( value ).getHex();
						break;
					case 'colorSpecular':
						json.specular = color.fromArray( value ).getHex();
						break;
					case 'colorEmissive':
						json.emissive = color.fromArray( value ).getHex();
						break;
					case 'specularCoef':
						json.shininess = value;
						break;
					case 'shading':
						if ( value.toLowerCase() === 'basic' ) json.type = 'MeshBasicMaterial';
						if ( value.toLowerCase() === 'phong' ) json.type = 'MeshPhongMaterial';
						break;
					case 'mapDiffuse':
						json.map = loadTexture( value, m.mapDiffuseRepeat, m.mapDiffuseOffset, m.mapDiffuseWrap, m.mapDiffuseAnisotropy );
						break;
					case 'mapDiffuseRepeat':
					case 'mapDiffuseOffset':
					case 'mapDiffuseWrap':
					case 'mapDiffuseAnisotropy':
						break;
					case 'mapLight':
						json.lightMap = loadTexture( value, m.mapLightRepeat, m.mapLightOffset, m.mapLightWrap, m.mapLightAnisotropy );
						break;
					case 'mapLightRepeat':
					case 'mapLightOffset':
					case 'mapLightWrap':
					case 'mapLightAnisotropy':
						break;
					case 'mapAO':
						json.aoMap = loadTexture( value, m.mapAORepeat, m.mapAOOffset, m.mapAOWrap, m.mapAOAnisotropy );
						break;
					case 'mapAORepeat':
					case 'mapAOOffset':
					case 'mapAOWrap':
					case 'mapAOAnisotropy':
						break;
					case 'mapBump':
						json.bumpMap = loadTexture( value, m.mapBumpRepeat, m.mapBumpOffset, m.mapBumpWrap, m.mapBumpAnisotropy );
						break;
					case 'mapBumpScale':
						json.bumpScale = value;
						break;
					case 'mapBumpRepeat':
					case 'mapBumpOffset':
					case 'mapBumpWrap':
					case 'mapBumpAnisotropy':
						break;
					case 'mapNormal':
						json.normalMap = loadTexture( value, m.mapNormalRepeat, m.mapNormalOffset, m.mapNormalWrap, m.mapNormalAnisotropy );
						break;
					case 'mapNormalFactor':
						json.normalScale = [ value, value ];
						break;
					case 'mapNormalRepeat':
					case 'mapNormalOffset':
					case 'mapNormalWrap':
					case 'mapNormalAnisotropy':
						break;
					case 'mapSpecular':
						json.specularMap = loadTexture( value, m.mapSpecularRepeat, m.mapSpecularOffset, m.mapSpecularWrap, m.mapSpecularAnisotropy );
						break;
					case 'mapSpecularRepeat':
					case 'mapSpecularOffset':
					case 'mapSpecularWrap':
					case 'mapSpecularAnisotropy':
						break;
					case 'mapAlpha':
						json.alphaMap = loadTexture( value, m.mapAlphaRepeat, m.mapAlphaOffset, m.mapAlphaWrap, m.mapAlphaAnisotropy );
						break;
					case 'mapAlphaRepeat':
					case 'mapAlphaOffset':
					case 'mapAlphaWrap':
					case 'mapAlphaAnisotropy':
						break;
					case 'flipSided':
						json.side = THREE.BackSide;
						break;
					case 'doubleSided':
						json.side = THREE.DoubleSide;
						break;
					case 'transparency':
						console.warn( 'THREE.Loader.createMaterial: transparency has been renamed to opacity' );
						json.opacity = value;
						break;
					case 'depthTest':
					case 'depthWrite':
					case 'colorWrite':
					case 'opacity':
					case 'reflectivity':
					case 'transparent':
					case 'visible':
					case 'wireframe':
						json[ name ] = value;
						break;
					case 'vertexColors':
						if ( value === true ) json.vertexColors = THREE.VertexColors;
						if ( value === 'face' ) json.vertexColors = THREE.FaceColors;
						break;
					default:
						console.error( 'THREE.Loader.createMaterial: Unsupported', name, value );
						break;
				}

			}

			if ( json.type === 'MeshBasicMaterial' ) delete json.emissive;
			if ( json.type !== 'MeshPhongMaterial' ) delete json.specular;

			if ( json.opacity < 1 ) json.transparent = true;

			materialLoader.setTextures( textures );

			return materialLoader.parse( json );

		};

	} )()

};

THREE.Loader.Handlers = {

	handlers: [],

	add: function ( regex, loader ) {

		this.handlers.push( regex, loader );

	},

	get: function ( file ) {

		var handlers = this.handlers;

		for ( var i = 0, l = handlers.length; i < l; i += 2 ) {

			var regex = handlers[ i ];
			var loader  = handlers[ i + 1 ];

			if ( regex.test( file ) ) {

				return loader;

			}

		}

		return null;

	}

};

// File:src/loaders/XHRLoader.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.XHRLoader = function ( manager ) {

	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;

};

THREE.XHRLoader.prototype = {

	constructor: THREE.XHRLoader,

	load: function ( url, onLoad, onProgress, onError ) {

		if ( this.path !== undefined ) url = this.path + url;

		var scope = this;

		var cached = THREE.Cache.get( url );

		if ( cached !== undefined ) {

			if ( onLoad ) {

				setTimeout( function () {

					onLoad( cached );

				}, 0 );

			}

			return cached;

		}

		var request = new XMLHttpRequest();
		request.overrideMimeType( 'text/plain' );
		request.open( 'GET', url, true );

		request.addEventListener( 'load', function ( event ) {

			var response = event.target.response;

			THREE.Cache.add( url, response );

			if ( this.status === 200 ) {

				if ( onLoad ) onLoad( response );

				scope.manager.itemEnd( url );

			} else if ( this.status === 0 ) {

				// Some browsers return HTTP Status 0 when using non-http protocol
				// e.g. 'file://' or 'data://'. Handle as success.

				console.warn( 'THREE.XHRLoader: HTTP Status 0 received.' );

				if ( onLoad ) onLoad( response );

				scope.manager.itemEnd( url );

			} else {

				if ( onError ) onError( event );

				scope.manager.itemError( url );

			}

		}, false );

		if ( onProgress !== undefined ) {

			request.addEventListener( 'progress', function ( event ) {

				onProgress( event );

			}, false );

		}

		request.addEventListener( 'error', function ( event ) {

			if ( onError ) onError( event );

			scope.manager.itemError( url );

		}, false );

		if ( this.responseType !== undefined ) request.responseType = this.responseType;
		if ( this.withCredentials !== undefined ) request.withCredentials = this.withCredentials;

		request.send( null );

		scope.manager.itemStart( url );

		return request;

	},

	setPath: function ( value ) {

		this.path = value;

	},

	setResponseType: function ( value ) {

		this.responseType = value;

	},

	setWithCredentials: function ( value ) {

		this.withCredentials = value;

	}

};

// File:src/loaders/ImageLoader.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.ImageLoader = function ( manager ) {

	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;

};

THREE.ImageLoader.prototype = {

	constructor: THREE.ImageLoader,

	load: function ( url, onLoad, onProgress, onError ) {

		if ( this.path !== undefined ) url = this.path + url;

		var scope = this;

		var cached = THREE.Cache.get( url );

		if ( cached !== undefined ) {

			scope.manager.itemStart( url );

			if ( onLoad ) {

				setTimeout( function () {

					onLoad( cached );

					scope.manager.itemEnd( url );

				}, 0 );

			} else {

				scope.manager.itemEnd( url );

			}

			return cached;

		}

		var image = document.createElement( 'img' );

		image.addEventListener( 'load', function ( event ) {

			THREE.Cache.add( url, this );

			if ( onLoad ) onLoad( this );

			scope.manager.itemEnd( url );

		}, false );

		if ( onProgress !== undefined ) {

			image.addEventListener( 'progress', function ( event ) {

				onProgress( event );

			}, false );

		}

		image.addEventListener( 'error', function ( event ) {

			if ( onError ) onError( event );

			scope.manager.itemError( url );

		}, false );

		if ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin;

		scope.manager.itemStart( url );

		image.src = url;

		return image;

	},

	setCrossOrigin: function ( value ) {

		this.crossOrigin = value;

	},

	setPath: function ( value ) {

		this.path = value;

	}

};

// File:src/loaders/JSONLoader.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 */

THREE.JSONLoader = function ( manager ) {

	if ( typeof manager === 'boolean' ) {

		console.warn( 'THREE.JSONLoader: showStatus parameter has been removed from constructor.' );
		manager = undefined;

	}

	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;

	this.withCredentials = false;

};

THREE.JSONLoader.prototype = {

	constructor: THREE.JSONLoader,

	// Deprecated

	get statusDomElement () {

		if ( this._statusDomElement === undefined ) {

			this._statusDomElement = document.createElement( 'div' );

		}

		console.warn( 'THREE.JSONLoader: .statusDomElement has been removed.' );
		return this._statusDomElement;

	},

	load: function( url, onLoad, onProgress, onError ) {

		var scope = this;

		var texturePath = this.texturePath && ( typeof this.texturePath === "string" ) ? this.texturePath : THREE.Loader.prototype.extractUrlBase( url );

		var loader = new THREE.XHRLoader( this.manager );
		loader.setWithCredentials( this.withCredentials );
		loader.load( url, function ( text ) {

			var json = JSON.parse( text );
			var metadata = json.metadata;

			if ( metadata !== undefined ) {

				var type = metadata.type;

				if ( type !== undefined ) {

					if ( type.toLowerCase() === 'object' ) {

						console.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.ObjectLoader instead.' );
						return;

					}

					if ( type.toLowerCase() === 'scene' ) {

						console.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.SceneLoader instead.' );
						return;

					}

				}

			}

			var object = scope.parse( json, texturePath );
			onLoad( object.geometry, object.materials );

		}, onProgress, onError );

	},

	setTexturePath: function ( value ) {

		this.texturePath = value;

	},

	parse: function ( json, texturePath ) {

		var geometry = new THREE.Geometry(),
		scale = ( json.scale !== undefined ) ? 1.0 / json.scale : 1.0;

		parseModel( scale );

		parseSkin();
		parseMorphing( scale );
		parseAnimations();

		geometry.computeFaceNormals();
		geometry.computeBoundingSphere();

		function parseModel( scale ) {

			function isBitSet( value, position ) {

				return value & ( 1 << position );

			}

			var i, j, fi,

			offset, zLength,

		colorIndex, normalIndex, uvIndex, materialIndex,

			type,
			isQuad,
			hasMaterial,
			hasFaceVertexUv,
			hasFaceNormal, hasFaceVertexNormal,
			hasFaceColor, hasFaceVertexColor,

		vertex, face, faceA, faceB, hex, normal,

			uvLayer, uv, u, v,

			faces = json.faces,
			vertices = json.vertices,
			normals = json.normals,
			colors = json.colors,

			nUvLayers = 0;

			if ( json.uvs !== undefined ) {

				// disregard empty arrays

				for ( i = 0; i < json.uvs.length; i ++ ) {

					if ( json.uvs[ i ].length ) nUvLayers ++;

				}

				for ( i = 0; i < nUvLayers; i ++ ) {

					geometry.faceVertexUvs[ i ] = [];

				}

			}

			offset = 0;
			zLength = vertices.length;

			while ( offset < zLength ) {

				vertex = new THREE.Vector3();

				vertex.x = vertices[ offset ++ ] * scale;
				vertex.y = vertices[ offset ++ ] * scale;
				vertex.z = vertices[ offset ++ ] * scale;

				geometry.vertices.push( vertex );

			}

			offset = 0;
			zLength = faces.length;

			while ( offset < zLength ) {

				type = faces[ offset ++ ];


				isQuad              = isBitSet( type, 0 );
				hasMaterial         = isBitSet( type, 1 );
				hasFaceVertexUv     = isBitSet( type, 3 );
				hasFaceNormal       = isBitSet( type, 4 );
				hasFaceVertexNormal = isBitSet( type, 5 );
				hasFaceColor	     = isBitSet( type, 6 );
				hasFaceVertexColor  = isBitSet( type, 7 );

				// console.log("type", type, "bits", isQuad, hasMaterial, hasFaceVertexUv, hasFaceNormal, hasFaceVertexNormal, hasFaceColor, hasFaceVertexColor);

				if ( isQuad ) {

					faceA = new THREE.Face3();
					faceA.a = faces[ offset ];
					faceA.b = faces[ offset + 1 ];
					faceA.c = faces[ offset + 3 ];

					faceB = new THREE.Face3();
					faceB.a = faces[ offset + 1 ];
					faceB.b = faces[ offset + 2 ];
					faceB.c = faces[ offset + 3 ];

					offset += 4;

					if ( hasMaterial ) {

						materialIndex = faces[ offset ++ ];
						faceA.materialIndex = materialIndex;
						faceB.materialIndex = materialIndex;

					}

					// to get face <=> uv index correspondence

					fi = geometry.faces.length;

					if ( hasFaceVertexUv ) {

						for ( i = 0; i < nUvLayers; i ++ ) {

							uvLayer = json.uvs[ i ];

							geometry.faceVertexUvs[ i ][ fi ] = [];
							geometry.faceVertexUvs[ i ][ fi + 1 ] = [];

							for ( j = 0; j < 4; j ++ ) {

								uvIndex = faces[ offset ++ ];

								u = uvLayer[ uvIndex * 2 ];
								v = uvLayer[ uvIndex * 2 + 1 ];

								uv = new THREE.Vector2( u, v );

								if ( j !== 2 ) geometry.faceVertexUvs[ i ][ fi ].push( uv );
								if ( j !== 0 ) geometry.faceVertexUvs[ i ][ fi + 1 ].push( uv );

							}

						}

					}

					if ( hasFaceNormal ) {

						normalIndex = faces[ offset ++ ] * 3;

						faceA.normal.set(
							normals[ normalIndex ++ ],
							normals[ normalIndex ++ ],
							normals[ normalIndex ]
						);

						faceB.normal.copy( faceA.normal );

					}

					if ( hasFaceVertexNormal ) {

						for ( i = 0; i < 4; i ++ ) {

							normalIndex = faces[ offset ++ ] * 3;

							normal = new THREE.Vector3(
								normals[ normalIndex ++ ],
								normals[ normalIndex ++ ],
								normals[ normalIndex ]
							);


							if ( i !== 2 ) faceA.vertexNormals.push( normal );
							if ( i !== 0 ) faceB.vertexNormals.push( normal );

						}

					}


					if ( hasFaceColor ) {

						colorIndex = faces[ offset ++ ];
						hex = colors[ colorIndex ];

						faceA.color.setHex( hex );
						faceB.color.setHex( hex );

					}


					if ( hasFaceVertexColor ) {

						for ( i = 0; i < 4; i ++ ) {

							colorIndex = faces[ offset ++ ];
							hex = colors[ colorIndex ];

							if ( i !== 2 ) faceA.vertexColors.push( new THREE.Color( hex ) );
							if ( i !== 0 ) faceB.vertexColors.push( new THREE.Color( hex ) );

						}

					}

					geometry.faces.push( faceA );
					geometry.faces.push( faceB );

				} else {

					face = new THREE.Face3();
					face.a = faces[ offset ++ ];
					face.b = faces[ offset ++ ];
					face.c = faces[ offset ++ ];

					if ( hasMaterial ) {

						materialIndex = faces[ offset ++ ];
						face.materialIndex = materialIndex;

					}

					// to get face <=> uv index correspondence

					fi = geometry.faces.length;

					if ( hasFaceVertexUv ) {

						for ( i = 0; i < nUvLayers; i ++ ) {

							uvLayer = json.uvs[ i ];

							geometry.faceVertexUvs[ i ][ fi ] = [];

							for ( j = 0; j < 3; j ++ ) {

								uvIndex = faces[ offset ++ ];

								u = uvLayer[ uvIndex * 2 ];
								v = uvLayer[ uvIndex * 2 + 1 ];

								uv = new THREE.Vector2( u, v );

								geometry.faceVertexUvs[ i ][ fi ].push( uv );

							}

						}

					}

					if ( hasFaceNormal ) {

						normalIndex = faces[ offset ++ ] * 3;

						face.normal.set(
							normals[ normalIndex ++ ],
							normals[ normalIndex ++ ],
							normals[ normalIndex ]
						);

					}

					if ( hasFaceVertexNormal ) {

						for ( i = 0; i < 3; i ++ ) {

							normalIndex = faces[ offset ++ ] * 3;

							normal = new THREE.Vector3(
								normals[ normalIndex ++ ],
								normals[ normalIndex ++ ],
								normals[ normalIndex ]
							);

							face.vertexNormals.push( normal );

						}

					}


					if ( hasFaceColor ) {

						colorIndex = faces[ offset ++ ];
						face.color.setHex( colors[ colorIndex ] );

					}


					if ( hasFaceVertexColor ) {

						for ( i = 0; i < 3; i ++ ) {

							colorIndex = faces[ offset ++ ];
							face.vertexColors.push( new THREE.Color( colors[ colorIndex ] ) );

						}

					}

					geometry.faces.push( face );

				}

			}

		};

		function parseSkin() {

			var influencesPerVertex = ( json.influencesPerVertex !== undefined ) ? json.influencesPerVertex : 2;

			if ( json.skinWeights ) {

				for ( var i = 0, l = json.skinWeights.length; i < l; i += influencesPerVertex ) {

					var x =                               json.skinWeights[ i ];
					var y = ( influencesPerVertex > 1 ) ? json.skinWeights[ i + 1 ] : 0;
					var z = ( influencesPerVertex > 2 ) ? json.skinWeights[ i + 2 ] : 0;
					var w = ( influencesPerVertex > 3 ) ? json.skinWeights[ i + 3 ] : 0;

					geometry.skinWeights.push( new THREE.Vector4( x, y, z, w ) );

				}

			}

			if ( json.skinIndices ) {

				for ( var i = 0, l = json.skinIndices.length; i < l; i += influencesPerVertex ) {

					var a =                               json.skinIndices[ i ];
					var b = ( influencesPerVertex > 1 ) ? json.skinIndices[ i + 1 ] : 0;
					var c = ( influencesPerVertex > 2 ) ? json.skinIndices[ i + 2 ] : 0;
					var d = ( influencesPerVertex > 3 ) ? json.skinIndices[ i + 3 ] : 0;

					geometry.skinIndices.push( new THREE.Vector4( a, b, c, d ) );

				}

			}

			geometry.bones = json.bones;

			if ( geometry.bones && geometry.bones.length > 0 && ( geometry.skinWeights.length !== geometry.skinIndices.length || geometry.skinIndices.length !== geometry.vertices.length ) ) {

				console.warn( 'When skinning, number of vertices (' + geometry.vertices.length + '), skinIndices (' +
					geometry.skinIndices.length + '), and skinWeights (' + geometry.skinWeights.length + ') should match.' );

			}

		};

		function parseMorphing( scale ) {

			if ( json.morphTargets !== undefined ) {

				for ( var i = 0, l = json.morphTargets.length; i < l; i ++ ) {

					geometry.morphTargets[ i ] = {};
					geometry.morphTargets[ i ].name = json.morphTargets[ i ].name;
					geometry.morphTargets[ i ].vertices = [];

					var dstVertices = geometry.morphTargets[ i ].vertices;
					var srcVertices = json.morphTargets[ i ].vertices;

					for ( var v = 0, vl = srcVertices.length; v < vl; v += 3 ) {

						var vertex = new THREE.Vector3();
						vertex.x = srcVertices[ v ] * scale;
						vertex.y = srcVertices[ v + 1 ] * scale;
						vertex.z = srcVertices[ v + 2 ] * scale;

						dstVertices.push( vertex );

					}

				}

			}

			if ( json.morphColors !== undefined && json.morphColors.length > 0 ) {

				console.warn( 'THREE.JSONLoader: "morphColors" no longer supported. Using them as face colors.' );

				var faces = geometry.faces;
				var morphColors = json.morphColors[ 0 ].colors;

				for ( var i = 0, l = faces.length; i < l; i ++ ) {

					faces[ i ].color.fromArray( morphColors, i * 3 );

				}

			}

		}

		function parseAnimations() {

			var outputAnimations = [];

			// parse old style Bone/Hierarchy animations
			var animations = [];

			if ( json.animation !== undefined ) {

				animations.push( json.animation );

			}

			if ( json.animations !== undefined ) {

				if ( json.animations.length ) {

					animations = animations.concat( json.animations );

				} else {

					animations.push( json.animations );

				}

			}

			for ( var i = 0; i < animations.length; i ++ ) {

				var clip = THREE.AnimationClip.parseAnimation( animations[ i ], geometry.bones );
				if ( clip ) outputAnimations.push( clip );

			}

			// parse implicit morph animations
			if ( geometry.morphTargets ) {

				// TODO: Figure out what an appropraite FPS is for morph target animations -- defaulting to 10, but really it is completely arbitrary.
				var morphAnimationClips = THREE.AnimationClip.CreateClipsFromMorphTargetSequences( geometry.morphTargets, 10 );
				outputAnimations = outputAnimations.concat( morphAnimationClips );

			}

			if ( outputAnimations.length > 0 ) geometry.animations = outputAnimations;

		};

		if ( json.materials === undefined || json.materials.length === 0 ) {

			return { geometry: geometry };

		} else {

			var materials = THREE.Loader.prototype.initMaterials( json.materials, texturePath, this.crossOrigin );

			return { geometry: geometry, materials: materials };

		}

	}

};

// File:src/loaders/LoadingManager.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.LoadingManager = function ( onLoad, onProgress, onError ) {

	var scope = this;

	var isLoading = false, itemsLoaded = 0, itemsTotal = 0;

	this.onStart = undefined;
	this.onLoad = onLoad;
	this.onProgress = onProgress;
	this.onError = onError;

	this.itemStart = function ( url ) {

		itemsTotal ++;

		if ( isLoading === false ) {

			if ( scope.onStart !== undefined ) {

				scope.onStart( url, itemsLoaded, itemsTotal );

			}

		}

		isLoading = true;

	};

	this.itemEnd = function ( url ) {

		itemsLoaded ++;

		if ( scope.onProgress !== undefined ) {

			scope.onProgress( url, itemsLoaded, itemsTotal );

		}

		if ( itemsLoaded === itemsTotal ) {

			isLoading = false;

			if ( scope.onLoad !== undefined ) {

				scope.onLoad();

			}

		}

	};

	this.itemError = function ( url ) {

		if ( scope.onError !== undefined ) {

			scope.onError( url );

		}

	};

};

THREE.DefaultLoadingManager = new THREE.LoadingManager();

// File:src/loaders/BufferGeometryLoader.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.BufferGeometryLoader = function ( manager ) {

	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;

};

THREE.BufferGeometryLoader.prototype = {

	constructor: THREE.BufferGeometryLoader,

	load: function ( url, onLoad, onProgress, onError ) {

		var scope = this;

		var loader = new THREE.XHRLoader( scope.manager );
		loader.load( url, function ( text ) {

			onLoad( scope.parse( JSON.parse( text ) ) );

		}, onProgress, onError );

	},

	parse: function ( json ) {

		var geometry = new THREE.BufferGeometry();

		var index = json.data.index;

		if ( index !== undefined ) {

			var typedArray = new self[ index.type ]( index.array );
			geometry.setIndex( new THREE.BufferAttribute( typedArray, 1 ) );

		}

		var attributes = json.data.attributes;

		for ( var key in attributes ) {

			var attribute = attributes[ key ];
			var typedArray = new self[ attribute.type ]( attribute.array );

			geometry.addAttribute( key, new THREE.BufferAttribute( typedArray, attribute.itemSize ) );

		}

		var groups = json.data.groups || json.data.drawcalls || json.data.offsets;

		if ( groups !== undefined ) {

			for ( var i = 0, n = groups.length; i !== n; ++ i ) {

				var group = groups[ i ];

				geometry.addGroup( group.start, group.count, group.materialIndex );

			}

		}

		var boundingSphere = json.data.boundingSphere;

		if ( boundingSphere !== undefined ) {

			var center = new THREE.Vector3();

			if ( boundingSphere.center !== undefined ) {

				center.fromArray( boundingSphere.center );

			}

			geometry.boundingSphere = new THREE.Sphere( center, boundingSphere.radius );

		}

		return geometry;

	}

};

// File:src/loaders/MaterialLoader.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.MaterialLoader = function ( manager ) {

	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
	this.textures = {};

};

THREE.MaterialLoader.prototype = {

	constructor: THREE.MaterialLoader,

	load: function ( url, onLoad, onProgress, onError ) {

		var scope = this;

		var loader = new THREE.XHRLoader( scope.manager );
		loader.load( url, function ( text ) {

			onLoad( scope.parse( JSON.parse( text ) ) );

		}, onProgress, onError );

	},

	setTextures: function ( value ) {

		this.textures = value;

	},

	getTexture: function ( name ) {

		var textures = this.textures;

		if ( textures[ name ] === undefined ) {

			console.warn( 'THREE.MaterialLoader: Undefined texture', name );

		}

		return textures[ name ];

	},

	parse: function ( json ) {

		var material = new THREE[ json.type ];

		if ( json.uuid !== undefined ) material.uuid = json.uuid;
		if ( json.name !== undefined ) material.name = json.name;
		if ( json.color !== undefined ) material.color.setHex( json.color );
		if ( json.roughness !== undefined ) material.roughness = json.roughness;
		if ( json.metalness !== undefined ) material.metalness = json.metalness;
		if ( json.emissive !== undefined ) material.emissive.setHex( json.emissive );
		if ( json.specular !== undefined ) material.specular.setHex( json.specular );
		if ( json.shininess !== undefined ) material.shininess = json.shininess;
		if ( json.uniforms !== undefined ) material.uniforms = json.uniforms;
		if ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader;
		if ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader;
		if ( json.vertexColors !== undefined ) material.vertexColors = json.vertexColors;
		if ( json.shading !== undefined ) material.shading = json.shading;
		if ( json.blending !== undefined ) material.blending = json.blending;
		if ( json.side !== undefined ) material.side = json.side;
		if ( json.opacity !== undefined ) material.opacity = json.opacity;
		if ( json.transparent !== undefined ) material.transparent = json.transparent;
		if ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest;
		if ( json.depthTest !== undefined ) material.depthTest = json.depthTest;
		if ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite;
		if ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite;
		if ( json.wireframe !== undefined ) material.wireframe = json.wireframe;
		if ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth;

		// for PointsMaterial
		if ( json.size !== undefined ) material.size = json.size;
		if ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation;

		// maps

		if ( json.map !== undefined ) material.map = this.getTexture( json.map );

		if ( json.alphaMap !== undefined ) {

			material.alphaMap = this.getTexture( json.alphaMap );
			material.transparent = true;

		}

		if ( json.bumpMap !== undefined ) material.bumpMap = this.getTexture( json.bumpMap );
		if ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale;

		if ( json.normalMap !== undefined ) material.normalMap = this.getTexture( json.normalMap );
		if ( json.normalScale !== undefined ) {

			var normalScale = json.normalScale;

			if ( Array.isArray( normalScale ) === false ) {

				// Blender exporter used to export a scalar. See #7459

				normalScale = [ normalScale, normalScale ];

			}

			material.normalScale = new THREE.Vector2().fromArray( normalScale );

		}

		if ( json.displacementMap !== undefined ) material.displacementMap = this.getTexture( json.displacementMap );
		if ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale;
		if ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias;

		if ( json.roughnessMap !== undefined ) material.roughnessMap = this.getTexture( json.roughnessMap );
		if ( json.metalnessMap !== undefined ) material.metalnessMap = this.getTexture( json.metalnessMap );

		if ( json.emissiveMap !== undefined ) material.emissiveMap = this.getTexture( json.emissiveMap );
		if ( json.specularMap !== undefined ) material.specularMap = this.getTexture( json.specularMap );

		if ( json.envMap !== undefined ) {

			material.envMap = this.getTexture( json.envMap );
			material.combine = THREE.MultiplyOperation;

		}

		if ( json.reflectivity ) material.reflectivity = json.reflectivity;

		if ( json.lightMap !== undefined ) material.lightMap = this.getTexture( json.lightMap );
		if ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity;

		if ( json.aoMap !== undefined ) material.aoMap = this.getTexture( json.aoMap );
		if ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity;

		// MeshFaceMaterial

		if ( json.materials !== undefined ) {

			for ( var i = 0, l = json.materials.length; i < l; i ++ ) {

				material.materials.push( this.parse( json.materials[ i ] ) );

			}

		}

		return material;

	}

};

// File:src/loaders/ObjectLoader.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.ObjectLoader = function ( manager ) {

	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
	this.texturePath = '';

};

THREE.ObjectLoader.prototype = {

	constructor: THREE.ObjectLoader,

	load: function ( url, onLoad, onProgress, onError ) {

		if ( this.texturePath === '' ) {

			this.texturePath = url.substring( 0, url.lastIndexOf( '/' ) + 1 );

		}

		var scope = this;

		var loader = new THREE.XHRLoader( scope.manager );
		loader.load( url, function ( text ) {

			scope.parse( JSON.parse( text ), onLoad );

		}, onProgress, onError );

	},

	setTexturePath: function ( value ) {

		this.texturePath = value;

	},

	setCrossOrigin: function ( value ) {

		this.crossOrigin = value;

	},

	parse: function ( json, onLoad ) {

		var geometries = this.parseGeometries( json.geometries );

		var images = this.parseImages( json.images, function () {

			if ( onLoad !== undefined ) onLoad( object );

		} );

		var textures  = this.parseTextures( json.textures, images );
		var materials = this.parseMaterials( json.materials, textures );

		var object = this.parseObject( json.object, geometries, materials );

		if ( json.animations ) {

			object.animations = this.parseAnimations( json.animations );

		}

		if ( json.images === undefined || json.images.length === 0 ) {

			if ( onLoad !== undefined ) onLoad( object );

		}

		return object;

	},

	parseGeometries: function ( json ) {

		var geometries = {};

		if ( json !== undefined ) {

			var geometryLoader = new THREE.JSONLoader();
			var bufferGeometryLoader = new THREE.BufferGeometryLoader();

			for ( var i = 0, l = json.length; i < l; i ++ ) {

				var geometry;
				var data = json[ i ];

				switch ( data.type ) {

					case 'PlaneGeometry':
					case 'PlaneBufferGeometry':

						geometry = new THREE[ data.type ](
							data.width,
							data.height,
							data.widthSegments,
							data.heightSegments
						);

						break;

					case 'BoxGeometry':
					case 'CubeGeometry': // backwards compatible

						geometry = new THREE.BoxGeometry(
							data.width,
							data.height,
							data.depth,
							data.widthSegments,
							data.heightSegments,
							data.depthSegments
						);

						break;

					case 'CircleBufferGeometry':

						geometry = new THREE.CircleBufferGeometry(
							data.radius,
							data.segments,
							data.thetaStart,
							data.thetaLength
						);

						break;

					case 'CircleGeometry':

						geometry = new THREE.CircleGeometry(
							data.radius,
							data.segments,
							data.thetaStart,
							data.thetaLength
						);

						break;

					case 'CylinderGeometry':

						geometry = new THREE.CylinderGeometry(
							data.radiusTop,
							data.radiusBottom,
							data.height,
							data.radialSegments,
							data.heightSegments,
							data.openEnded,
							data.thetaStart,
							data.thetaLength
						);

						break;

					case 'SphereGeometry':

						geometry = new THREE.SphereGeometry(
							data.radius,
							data.widthSegments,
							data.heightSegments,
							data.phiStart,
							data.phiLength,
							data.thetaStart,
							data.thetaLength
						);

						break;

					case 'SphereBufferGeometry':

						geometry = new THREE.SphereBufferGeometry(
							data.radius,
							data.widthSegments,
							data.heightSegments,
							data.phiStart,
							data.phiLength,
							data.thetaStart,
							data.thetaLength
						);

						break;

					case 'DodecahedronGeometry':

						geometry = new THREE.DodecahedronGeometry(
							data.radius,
							data.detail
						);

						break;

					case 'IcosahedronGeometry':

						geometry = new THREE.IcosahedronGeometry(
							data.radius,
							data.detail
						);

						break;

					case 'OctahedronGeometry':

						geometry = new THREE.OctahedronGeometry(
							data.radius,
							data.detail
						);

						break;

					case 'TetrahedronGeometry':

						geometry = new THREE.TetrahedronGeometry(
							data.radius,
							data.detail
						);

						break;

					case 'RingGeometry':

						geometry = new THREE.RingGeometry(
							data.innerRadius,
							data.outerRadius,
							data.thetaSegments,
							data.phiSegments,
							data.thetaStart,
							data.thetaLength
						);

						break;

					case 'TorusGeometry':

						geometry = new THREE.TorusGeometry(
							data.radius,
							data.tube,
							data.radialSegments,
							data.tubularSegments,
							data.arc
						);

						break;

					case 'TorusKnotGeometry':

						geometry = new THREE.TorusKnotGeometry(
							data.radius,
							data.tube,
							data.radialSegments,
							data.tubularSegments,
							data.p,
							data.q,
							data.heightScale
						);

						break;

					case 'BufferGeometry':

						geometry = bufferGeometryLoader.parse( data );

						break;

					case 'Geometry':

						geometry = geometryLoader.parse( data.data, this.texturePath ).geometry;

						break;

					default:

						console.warn( 'THREE.ObjectLoader: Unsupported geometry type "' + data.type + '"' );

						continue;

				}

				geometry.uuid = data.uuid;

				if ( data.name !== undefined ) geometry.name = data.name;

				geometries[ data.uuid ] = geometry;

			}

		}

		return geometries;

	},

	parseMaterials: function ( json, textures ) {

		var materials = {};

		if ( json !== undefined ) {

			var loader = new THREE.MaterialLoader();
			loader.setTextures( textures );

			for ( var i = 0, l = json.length; i < l; i ++ ) {

				var material = loader.parse( json[ i ] );
				materials[ material.uuid ] = material;

			}

		}

		return materials;

	},

	parseAnimations: function ( json ) {

		var animations = [];

		for ( var i = 0; i < json.length; i ++ ) {

			var clip = THREE.AnimationClip.parse( json[ i ] );

			animations.push( clip );

		}

		return animations;

	},

	parseImages: function ( json, onLoad ) {

		var scope = this;
		var images = {};

		function loadImage( url ) {

			scope.manager.itemStart( url );

			return loader.load( url, function () {

				scope.manager.itemEnd( url );

			} );

		}

		if ( json !== undefined && json.length > 0 ) {

			var manager = new THREE.LoadingManager( onLoad );

			var loader = new THREE.ImageLoader( manager );
			loader.setCrossOrigin( this.crossOrigin );

			for ( var i = 0, l = json.length; i < l; i ++ ) {

				var image = json[ i ];
				var path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( image.url ) ? image.url : scope.texturePath + image.url;

				images[ image.uuid ] = loadImage( path );

			}

		}

		return images;

	},

	parseTextures: function ( json, images ) {

		function parseConstant( value ) {

			if ( typeof( value ) === 'number' ) return value;

			console.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value );

			return THREE[ value ];

		}

		var textures = {};

		if ( json !== undefined ) {

			for ( var i = 0, l = json.length; i < l; i ++ ) {

				var data = json[ i ];

				if ( data.image === undefined ) {

					console.warn( 'THREE.ObjectLoader: No "image" specified for', data.uuid );

				}

				if ( images[ data.image ] === undefined ) {

					console.warn( 'THREE.ObjectLoader: Undefined image', data.image );

				}

				var texture = new THREE.Texture( images[ data.image ] );
				texture.needsUpdate = true;

				texture.uuid = data.uuid;

				if ( data.name !== undefined ) texture.name = data.name;
				if ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping );
				if ( data.offset !== undefined ) texture.offset = new THREE.Vector2( data.offset[ 0 ], data.offset[ 1 ] );
				if ( data.repeat !== undefined ) texture.repeat = new THREE.Vector2( data.repeat[ 0 ], data.repeat[ 1 ] );
				if ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter );
				if ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter );
				if ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy;
				if ( Array.isArray( data.wrap ) ) {

					texture.wrapS = parseConstant( data.wrap[ 0 ] );
					texture.wrapT = parseConstant( data.wrap[ 1 ] );

				}

				textures[ data.uuid ] = texture;

			}

		}

		return textures;

	},

	parseObject: function () {

		var matrix = new THREE.Matrix4();

		return function ( data, geometries, materials ) {

			var object;

			function getGeometry( name ) {

				if ( geometries[ name ] === undefined ) {

					console.warn( 'THREE.ObjectLoader: Undefined geometry', name );

				}

				return geometries[ name ];

			}

			function getMaterial( name ) {

				if ( name === undefined ) return undefined;

				if ( materials[ name ] === undefined ) {

					console.warn( 'THREE.ObjectLoader: Undefined material', name );

				}

				return materials[ name ];

			}

			switch ( data.type ) {

				case 'Scene':

					object = new THREE.Scene();

					break;

				case 'PerspectiveCamera':

					object = new THREE.PerspectiveCamera( data.fov, data.aspect, data.near, data.far );

					break;

				case 'OrthographicCamera':

					object = new THREE.OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far );

					break;

				case 'AmbientLight':

					object = new THREE.AmbientLight( data.color, data.intensity );

					break;

				case 'DirectionalLight':

					object = new THREE.DirectionalLight( data.color, data.intensity );

					break;

				case 'PointLight':

					object = new THREE.PointLight( data.color, data.intensity, data.distance, data.decay );

					break;

				case 'SpotLight':

					object = new THREE.SpotLight( data.color, data.intensity, data.distance, data.angle, data.exponent, data.decay );

					break;

				case 'HemisphereLight':

					object = new THREE.HemisphereLight( data.color, data.groundColor, data.intensity );

					break;

				case 'Mesh':

					var geometry = getGeometry( data.geometry );
					var material = getMaterial( data.material );

					if ( geometry.bones && geometry.bones.length > 0 ) {

						object = new THREE.SkinnedMesh( geometry, material );

					} else {

						object = new THREE.Mesh( geometry, material );

					}

					break;

				case 'LOD':

					object = new THREE.LOD();

					break;

				case 'Line':

					object = new THREE.Line( getGeometry( data.geometry ), getMaterial( data.material ), data.mode );

					break;

				case 'PointCloud':
				case 'Points':

					object = new THREE.Points( getGeometry( data.geometry ), getMaterial( data.material ) );

					break;

				case 'Sprite':

					object = new THREE.Sprite( getMaterial( data.material ) );

					break;

				case 'Group':

					object = new THREE.Group();

					break;

				default:

					object = new THREE.Object3D();

			}

			object.uuid = data.uuid;

			if ( data.name !== undefined ) object.name = data.name;
			if ( data.matrix !== undefined ) {

				matrix.fromArray( data.matrix );
				matrix.decompose( object.position, object.quaternion, object.scale );

			} else {

				if ( data.position !== undefined ) object.position.fromArray( data.position );
				if ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation );
				if ( data.scale !== undefined ) object.scale.fromArray( data.scale );

			}

			if ( data.castShadow !== undefined ) object.castShadow = data.castShadow;
			if ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow;

			if ( data.visible !== undefined ) object.visible = data.visible;
			if ( data.userData !== undefined ) object.userData = data.userData;

			if ( data.children !== undefined ) {

				for ( var child in data.children ) {

					object.add( this.parseObject( data.children[ child ], geometries, materials ) );

				}

			}

			if ( data.type === 'LOD' ) {

				var levels = data.levels;

				for ( var l = 0; l < levels.length; l ++ ) {

					var level = levels[ l ];
					var child = object.getObjectByProperty( 'uuid', level.object );

					if ( child !== undefined ) {

						object.addLevel( child, level.distance );

					}

				}

			}

			return object;

		}

	}()

};

// File:src/loaders/TextureLoader.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.TextureLoader = function ( manager ) {

	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;

};

THREE.TextureLoader.prototype = {

	constructor: THREE.TextureLoader,

	load: function ( url, onLoad, onProgress, onError ) {

		var texture = new THREE.Texture();

		var loader = new THREE.ImageLoader( this.manager );
		loader.setCrossOrigin( this.crossOrigin );
		loader.setPath( this.path );
		loader.load( url, function ( image ) {

			texture.image = image;
			texture.needsUpdate = true;

			if ( onLoad !== undefined ) {

				onLoad( texture );

			}

		}, onProgress, onError );

		return texture;

	},

	setCrossOrigin: function ( value ) {

		this.crossOrigin = value;

	},

	setPath: function ( value ) {

		this.path = value;

	}

};

// File:src/loaders/CubeTextureLoader.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.CubeTextureLoader = function ( manager ) {

	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;

};

THREE.CubeTextureLoader.prototype = {

	constructor: THREE.CubeTextureLoader,

	load: function ( urls, onLoad, onProgress, onError ) {

		var texture = new THREE.CubeTexture( [] );

		var loader = new THREE.ImageLoader();
		loader.setCrossOrigin( this.crossOrigin );
		loader.setPath( this.path );

		var loaded = 0;

		function loadTexture( i ) {

			loader.load( urls[ i ], function ( image ) {

				texture.images[ i ] = image;

				loaded ++;

				if ( loaded === 6 ) {

					texture.needsUpdate = true;

					if ( onLoad ) onLoad( texture );

				}

			}, undefined, onError );

		}

		for ( var i = 0; i < urls.length; ++ i ) {

			loadTexture( i );

		}

		return texture;

	},

	setCrossOrigin: function ( value ) {

		this.crossOrigin = value;

	},

	setPath: function ( value ) {

		this.path = value;

	}

};

// File:src/loaders/BinaryTextureLoader.js

/**
 * @author Nikos M. / https://github.com/foo123/
 *
 * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
 */

THREE.DataTextureLoader = THREE.BinaryTextureLoader = function ( manager ) {

	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;

	// override in sub classes
	this._parser = null;

};

THREE.BinaryTextureLoader.prototype = {

	constructor: THREE.BinaryTextureLoader,

	load: function ( url, onLoad, onProgress, onError ) {

		var scope = this;

		var texture = new THREE.DataTexture();

		var loader = new THREE.XHRLoader( this.manager );
		loader.setResponseType( 'arraybuffer' );

		loader.load( url, function ( buffer ) {

			var texData = scope._parser( buffer );

			if ( ! texData ) return;

			if ( undefined !== texData.image ) {

				texture.image = texData.image;

			} else if ( undefined !== texData.data ) {

				texture.image.width = texData.width;
				texture.image.height = texData.height;
				texture.image.data = texData.data;

			}

			texture.wrapS = undefined !== texData.wrapS ? texData.wrapS : THREE.ClampToEdgeWrapping;
			texture.wrapT = undefined !== texData.wrapT ? texData.wrapT : THREE.ClampToEdgeWrapping;

			texture.magFilter = undefined !== texData.magFilter ? texData.magFilter : THREE.LinearFilter;
			texture.minFilter = undefined !== texData.minFilter ? texData.minFilter : THREE.LinearMipMapLinearFilter;

			texture.anisotropy = undefined !== texData.anisotropy ? texData.anisotropy : 1;

			if ( undefined !== texData.format ) {

				texture.format = texData.format;

			}
			if ( undefined !== texData.type ) {

				texture.type = texData.type;

			}

			if ( undefined !== texData.mipmaps ) {

				texture.mipmaps = texData.mipmaps;

			}

			if ( 1 === texData.mipmapCount ) {

				texture.minFilter = THREE.LinearFilter;

			}

			texture.needsUpdate = true;

			if ( onLoad ) onLoad( texture, texData );

		}, onProgress, onError );


		return texture;

	}

};

// File:src/loaders/CompressedTextureLoader.js

/**
 * @author mrdoob / http://mrdoob.com/
 *
 * Abstract Base class to block based textures loader (dds, pvr, ...)
 */

THREE.CompressedTextureLoader = function ( manager ) {

	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;

	// override in sub classes
	this._parser = null;

};


THREE.CompressedTextureLoader.prototype = {

	constructor: THREE.CompressedTextureLoader,

	load: function ( url, onLoad, onProgress, onError ) {

		var scope = this;

		var images = [];

		var texture = new THREE.CompressedTexture();
		texture.image = images;

		var loader = new THREE.XHRLoader( this.manager );
		loader.setPath( this.path );
		loader.setResponseType( 'arraybuffer' );

		function loadTexture( i ) {

			loader.load( url[ i ], function ( buffer ) {

				var texDatas = scope._parser( buffer, true );

				images[ i ] = {
					width: texDatas.width,
					height: texDatas.height,
					format: texDatas.format,
					mipmaps: texDatas.mipmaps
				};

				loaded += 1;

				if ( loaded === 6 ) {

					if ( texDatas.mipmapCount === 1 )
						texture.minFilter = THREE.LinearFilter;

					texture.format = texDatas.format;
					texture.needsUpdate = true;

					if ( onLoad ) onLoad( texture );

				}

			}, onProgress, onError );

		}

		if ( Array.isArray( url ) ) {

			var loaded = 0;

			for ( var i = 0, il = url.length; i < il; ++ i ) {

				loadTexture( i );

			}

		} else {

			// compressed cubemap texture stored in a single DDS file

			loader.load( url, function ( buffer ) {

				var texDatas = scope._parser( buffer, true );

				if ( texDatas.isCubemap ) {

					var faces = texDatas.mipmaps.length / texDatas.mipmapCount;

					for ( var f = 0; f < faces; f ++ ) {

						images[ f ] = { mipmaps : [] };

						for ( var i = 0; i < texDatas.mipmapCount; i ++ ) {

							images[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] );
							images[ f ].format = texDatas.format;
							images[ f ].width = texDatas.width;
							images[ f ].height = texDatas.height;

						}

					}

				} else {

					texture.image.width = texDatas.width;
					texture.image.height = texDatas.height;
					texture.mipmaps = texDatas.mipmaps;

				}

				if ( texDatas.mipmapCount === 1 ) {

					texture.minFilter = THREE.LinearFilter;

				}

				texture.format = texDatas.format;
				texture.needsUpdate = true;

				if ( onLoad ) onLoad( texture );

			}, onProgress, onError );

		}

		return texture;

	},

	setPath: function ( value ) {

		this.path = value;

	}

};

// File:src/materials/Material.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 */

THREE.Material = function () {

	Object.defineProperty( this, 'id', { value: THREE.MaterialIdCount ++ } );

	this.uuid = THREE.Math.generateUUID();

	this.name = '';
	this.type = 'Material';

	this.side = THREE.FrontSide;

	this.opacity = 1;
	this.transparent = false;

	this.blending = THREE.NormalBlending;

	this.blendSrc = THREE.SrcAlphaFactor;
	this.blendDst = THREE.OneMinusSrcAlphaFactor;
	this.blendEquation = THREE.AddEquation;
	this.blendSrcAlpha = null;
	this.blendDstAlpha = null;
	this.blendEquationAlpha = null;

	this.depthFunc = THREE.LessEqualDepth;
	this.depthTest = true;
	this.depthWrite = true;

	this.colorWrite = true;

	this.precision = null; // override the renderer's default precision for this material

	this.polygonOffset = false;
	this.polygonOffsetFactor = 0;
	this.polygonOffsetUnits = 0;

	this.alphaTest = 0;

	this.overdraw = 0; // Overdrawn pixels (typically between 0 and 1) for fixing antialiasing gaps in CanvasRenderer

	this.visible = true;

	this._needsUpdate = true;

};

THREE.Material.prototype = {

	constructor: THREE.Material,

	get needsUpdate () {

		return this._needsUpdate;

	},

	set needsUpdate ( value ) {

		if ( value === true ) this.update();

		this._needsUpdate = value;

	},

	setValues: function ( values ) {

		if ( values === undefined ) return;

		for ( var key in values ) {

			var newValue = values[ key ];

			if ( newValue === undefined ) {

				console.warn( "THREE.Material: '" + key + "' parameter is undefined." );
				continue;

			}

			var currentValue = this[ key ];

			if ( currentValue === undefined ) {

				console.warn( "THREE." + this.type + ": '" + key + "' is not a property of this material." );
				continue;

			}

			if ( currentValue instanceof THREE.Color ) {

				currentValue.set( newValue );

			} else if ( currentValue instanceof THREE.Vector3 && newValue instanceof THREE.Vector3 ) {

				currentValue.copy( newValue );

			} else if ( key === 'overdraw' ) {

				// ensure overdraw is backwards-compatible with legacy boolean type
				this[ key ] = Number( newValue );

			} else {

				this[ key ] = newValue;

			}

		}

	},

	toJSON: function ( meta ) {

		var isRoot = meta === undefined;

		if ( isRoot ) {

			meta = {
				textures: {},
				images: {}
			};

		}

		var data = {
			metadata: {
				version: 4.4,
				type: 'Material',
				generator: 'Material.toJSON'
			}
		};

		// standard Material serialization
		data.uuid = this.uuid;
		data.type = this.type;
		if ( this.name !== '' ) data.name = this.name;

		if ( this.color instanceof THREE.Color ) data.color = this.color.getHex();

		if ( this.roughness !== 0.5 ) data.roughness = this.roughness;
		if ( this.metalness > 0 ) data.metalness = this.metalness;

		if ( this.emissive instanceof THREE.Color ) data.emissive = this.emissive.getHex();
		if ( this.specular instanceof THREE.Color ) data.specular = this.specular.getHex();
		if ( this.shininess !== undefined ) data.shininess = this.shininess;

		if ( this.map instanceof THREE.Texture ) data.map = this.map.toJSON( meta ).uuid;
		if ( this.alphaMap instanceof THREE.Texture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid;
		if ( this.lightMap instanceof THREE.Texture ) data.lightMap = this.lightMap.toJSON( meta ).uuid;
		if ( this.bumpMap instanceof THREE.Texture ) {

			data.bumpMap = this.bumpMap.toJSON( meta ).uuid;
			data.bumpScale = this.bumpScale;

		}
		if ( this.normalMap instanceof THREE.Texture ) {

			data.normalMap = this.normalMap.toJSON( meta ).uuid;
			data.normalScale = this.normalScale.toArray();

		}
		if ( this.displacementMap instanceof THREE.Texture ) {

			data.displacementMap = this.displacementMap.toJSON( meta ).uuid;
			data.displacementScale = this.displacementScale;
			data.displacementBias = this.displacementBias;

		}
		if ( this.roughnessMap instanceof THREE.Texture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid;
		if ( this.metalnessMap instanceof THREE.Texture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid;

		if ( this.emissiveMap instanceof THREE.Texture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid;
		if ( this.specularMap instanceof THREE.Texture ) data.specularMap = this.specularMap.toJSON( meta ).uuid;

		if ( this.envMap instanceof THREE.Texture ) {

			data.envMap = this.envMap.toJSON( meta ).uuid;
			data.reflectivity = this.reflectivity; // Scale behind envMap

		}

		if ( this.size !== undefined ) data.size = this.size;
		if ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation;

		if ( this.vertexColors !== undefined && this.vertexColors !== THREE.NoColors ) data.vertexColors = this.vertexColors;
		if ( this.shading !== undefined && this.shading !== THREE.SmoothShading ) data.shading = this.shading;
		if ( this.blending !== undefined && this.blending !== THREE.NormalBlending ) data.blending = this.blending;
		if ( this.side !== undefined && this.side !== THREE.FrontSide ) data.side = this.side;

		if ( this.opacity < 1 ) data.opacity = this.opacity;
		if ( this.transparent === true ) data.transparent = this.transparent;
		if ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest;
		if ( this.wireframe === true ) data.wireframe = this.wireframe;
		if ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth;

		// TODO: Copied from Object3D.toJSON

		function extractFromCache ( cache ) {

			var values = [];

			for ( var key in cache ) {

				var data = cache[ key ];
				delete data.metadata;
				values.push( data );

			}

			return values;

		}

		if ( isRoot ) {

			var textures = extractFromCache( meta.textures );
			var images = extractFromCache( meta.images );

			if ( textures.length > 0 ) data.textures = textures;
			if ( images.length > 0 ) data.images = images;

		}

		return data;

	},

	clone: function () {

		return new this.constructor().copy( this );

	},

	copy: function ( source ) {

		this.name = source.name;

		this.side = source.side;

		this.opacity = source.opacity;
		this.transparent = source.transparent;

		this.blending = source.blending;

		this.blendSrc = source.blendSrc;
		this.blendDst = source.blendDst;
		this.blendEquation = source.blendEquation;
		this.blendSrcAlpha = source.blendSrcAlpha;
		this.blendDstAlpha = source.blendDstAlpha;
		this.blendEquationAlpha = source.blendEquationAlpha;

		this.depthFunc = source.depthFunc;
		this.depthTest = source.depthTest;
		this.depthWrite = source.depthWrite;

		this.colorWrite = source.colorWrite;

		this.precision = source.precision;

		this.polygonOffset = source.polygonOffset;
		this.polygonOffsetFactor = source.polygonOffsetFactor;
		this.polygonOffsetUnits = source.polygonOffsetUnits;

		this.alphaTest = source.alphaTest;

		this.overdraw = source.overdraw;

		this.visible = source.visible;

		return this;

	},

	update: function () {

		this.dispatchEvent( { type: 'update' } );

	},

	dispose: function () {

		this.dispatchEvent( { type: 'dispose' } );

	}

};

THREE.EventDispatcher.prototype.apply( THREE.Material.prototype );

THREE.MaterialIdCount = 0;

// File:src/materials/LineBasicMaterial.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 *
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  linewidth: <float>,
 *  linecap: "round",
 *  linejoin: "round",
 *
 *  vertexColors: <bool>
 *
 *  fog: <bool>
 * }
 */

THREE.LineBasicMaterial = function ( parameters ) {

	THREE.Material.call( this );

	this.type = 'LineBasicMaterial';

	this.color = new THREE.Color( 0xffffff );

	this.linewidth = 1;
	this.linecap = 'round';
	this.linejoin = 'round';

	this.vertexColors = THREE.NoColors;

	this.fog = true;

	this.setValues( parameters );

};

THREE.LineBasicMaterial.prototype = Object.create( THREE.Material.prototype );
THREE.LineBasicMaterial.prototype.constructor = THREE.LineBasicMaterial;

THREE.LineBasicMaterial.prototype.copy = function ( source ) {

	THREE.Material.prototype.copy.call( this, source );

	this.color.copy( source.color );

	this.linewidth = source.linewidth;
	this.linecap = source.linecap;
	this.linejoin = source.linejoin;

	this.vertexColors = source.vertexColors;

	this.fog = source.fog;

	return this;

};

// File:src/materials/LineDashedMaterial.js

/**
 * @author alteredq / http://alteredqualia.com/
 *
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  linewidth: <float>,
 *
 *  scale: <float>,
 *  dashSize: <float>,
 *  gapSize: <float>,
 *
 *  vertexColors: THREE.NoColors / THREE.FaceColors / THREE.VertexColors
 *
 *  fog: <bool>
 * }
 */

THREE.LineDashedMaterial = function ( parameters ) {

	THREE.Material.call( this );

	this.type = 'LineDashedMaterial';

	this.color = new THREE.Color( 0xffffff );

	this.linewidth = 1;

	this.scale = 1;
	this.dashSize = 3;
	this.gapSize = 1;

	this.vertexColors = THREE.NoColors;

	this.fog = true;

	this.setValues( parameters );

};

THREE.LineDashedMaterial.prototype = Object.create( THREE.Material.prototype );
THREE.LineDashedMaterial.prototype.constructor = THREE.LineDashedMaterial;

THREE.LineDashedMaterial.prototype.copy = function ( source ) {

	THREE.Material.prototype.copy.call( this, source );

	this.color.copy( source.color );
	
	this.linewidth = source.linewidth;

	this.scale = source.scale;
	this.dashSize = source.dashSize;
	this.gapSize = source.gapSize;

	this.vertexColors = source.vertexColors;

	this.fog = source.fog;

	return this;

};

// File:src/materials/MeshBasicMaterial.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 *
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *  map: new THREE.Texture( <Image> ),
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  specularMap: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),
 *  combine: THREE.Multiply,
 *  reflectivity: <float>,
 *  refractionRatio: <float>,
 *
 *  shading: THREE.SmoothShading,
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  vertexColors: THREE.NoColors / THREE.VertexColors / THREE.FaceColors,
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *
 *  fog: <bool>
 * }
 */

THREE.MeshBasicMaterial = function ( parameters ) {

	THREE.Material.call( this );

	this.type = 'MeshBasicMaterial';

	this.color = new THREE.Color( 0xffffff ); // emissive

	this.map = null;

	this.aoMap = null;
	this.aoMapIntensity = 1.0;

	this.specularMap = null;

	this.alphaMap = null;

	this.envMap = null;
	this.combine = THREE.MultiplyOperation;
	this.reflectivity = 1;
	this.refractionRatio = 0.98;

	this.fog = true;

	this.shading = THREE.SmoothShading;

	this.wireframe = false;
	this.wireframeLinewidth = 1;
	this.wireframeLinecap = 'round';
	this.wireframeLinejoin = 'round';

	this.vertexColors = THREE.NoColors;

	this.skinning = false;
	this.morphTargets = false;

	this.setValues( parameters );

};

THREE.MeshBasicMaterial.prototype = Object.create( THREE.Material.prototype );
THREE.MeshBasicMaterial.prototype.constructor = THREE.MeshBasicMaterial;

THREE.MeshBasicMaterial.prototype.copy = function ( source ) {

	THREE.Material.prototype.copy.call( this, source );

	this.color.copy( source.color );

	this.map = source.map;

	this.aoMap = source.aoMap;
	this.aoMapIntensity = source.aoMapIntensity;

	this.specularMap = source.specularMap;

	this.alphaMap = source.alphaMap;

	this.envMap = source.envMap;
	this.combine = source.combine;
	this.reflectivity = source.reflectivity;
	this.refractionRatio = source.refractionRatio;

	this.fog = source.fog;

	this.shading = source.shading;

	this.wireframe = source.wireframe;
	this.wireframeLinewidth = source.wireframeLinewidth;
	this.wireframeLinecap = source.wireframeLinecap;
	this.wireframeLinejoin = source.wireframeLinejoin;

	this.vertexColors = source.vertexColors;

	this.skinning = source.skinning;
	this.morphTargets = source.morphTargets;

	return this;

};

// File:src/materials/MeshLambertMaterial.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 *
 * parameters = {
 *  color: <hex>,
 *  emissive: <hex>,
 *  opacity: <float>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  emissiveMap: new THREE.Texture( <Image> ),
 *
 *  specularMap: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),
 *  combine: THREE.Multiply,
 *  reflectivity: <float>,
 *  refractionRatio: <float>,
 *
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  vertexColors: THREE.NoColors / THREE.VertexColors / THREE.FaceColors,
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *  morphNormals: <bool>,
 *
 *	fog: <bool>
 * }
 */

THREE.MeshLambertMaterial = function ( parameters ) {

	THREE.Material.call( this );

	this.type = 'MeshLambertMaterial';

	this.color = new THREE.Color( 0xffffff ); // diffuse
	this.emissive = new THREE.Color( 0x000000 );

	this.map = null;

	this.lightMap = null;
	this.lightMapIntensity = 1.0;

	this.aoMap = null;
	this.aoMapIntensity = 1.0;

	this.emissiveMap = null;

	this.specularMap = null;

	this.alphaMap = null;

	this.envMap = null;
	this.combine = THREE.MultiplyOperation;
	this.reflectivity = 1;
	this.refractionRatio = 0.98;

	this.fog = true;

	this.wireframe = false;
	this.wireframeLinewidth = 1;
	this.wireframeLinecap = 'round';
	this.wireframeLinejoin = 'round';

	this.vertexColors = THREE.NoColors;

	this.skinning = false;
	this.morphTargets = false;
	this.morphNormals = false;

	this.setValues( parameters );

};

THREE.MeshLambertMaterial.prototype = Object.create( THREE.Material.prototype );
THREE.MeshLambertMaterial.prototype.constructor = THREE.MeshLambertMaterial;

THREE.MeshLambertMaterial.prototype.copy = function ( source ) {

	THREE.Material.prototype.copy.call( this, source );

	this.color.copy( source.color );
	this.emissive.copy( source.emissive );

	this.map = source.map;

	this.lightMap = source.lightMap;
	this.lightMapIntensity = source.lightMapIntensity;

	this.aoMap = source.aoMap;
	this.aoMapIntensity = source.aoMapIntensity;

	this.emissiveMap = source.emissiveMap;

	this.specularMap = source.specularMap;

	this.alphaMap = source.alphaMap;

	this.envMap = source.envMap;
	this.combine = source.combine;
	this.reflectivity = source.reflectivity;
	this.refractionRatio = source.refractionRatio;

	this.fog = source.fog;

	this.wireframe = source.wireframe;
	this.wireframeLinewidth = source.wireframeLinewidth;
	this.wireframeLinecap = source.wireframeLinecap;
	this.wireframeLinejoin = source.wireframeLinejoin;

	this.vertexColors = source.vertexColors;

	this.skinning = source.skinning;
	this.morphTargets = source.morphTargets;
	this.morphNormals = source.morphNormals;

	return this;

};

// File:src/materials/MeshPhongMaterial.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 *
 * parameters = {
 *  color: <hex>,
 *  emissive: <hex>,
 *  specular: <hex>,
 *  shininess: <float>,
 *  opacity: <float>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  emissiveMap: new THREE.Texture( <Image> ),
 *
 *  bumpMap: new THREE.Texture( <Image> ),
 *  bumpScale: <float>,
 *
 *  normalMap: new THREE.Texture( <Image> ),
 *  normalScale: <Vector2>,
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  specularMap: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),
 *  combine: THREE.Multiply,
 *  reflectivity: <float>,
 *  refractionRatio: <float>,
 *
 *  shading: THREE.SmoothShading,
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  vertexColors: THREE.NoColors / THREE.VertexColors / THREE.FaceColors,
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *  morphNormals: <bool>,
 *
 *	fog: <bool>
 * }
 */

THREE.MeshPhongMaterial = function ( parameters ) {

	THREE.Material.call( this );

	this.type = 'MeshPhongMaterial';

	this.color = new THREE.Color( 0xffffff ); // diffuse
	this.emissive = new THREE.Color( 0x000000 );
	this.specular = new THREE.Color( 0x111111 );
	this.shininess = 30;

	this.map = null;

	this.lightMap = null;
	this.lightMapIntensity = 1.0;

	this.aoMap = null;
	this.aoMapIntensity = 1.0;

	this.emissiveMap = null;

	this.bumpMap = null;
	this.bumpScale = 1;

	this.normalMap = null;
	this.normalScale = new THREE.Vector2( 1, 1 );

	this.displacementMap = null;
	this.displacementScale = 1;
	this.displacementBias = 0;

	this.specularMap = null;

	this.alphaMap = null;

	this.envMap = null;
	this.combine = THREE.MultiplyOperation;
	this.reflectivity = 1;
	this.refractionRatio = 0.98;

	this.fog = true;

	this.shading = THREE.SmoothShading;

	this.wireframe = false;
	this.wireframeLinewidth = 1;
	this.wireframeLinecap = 'round';
	this.wireframeLinejoin = 'round';

	this.vertexColors = THREE.NoColors;

	this.skinning = false;
	this.morphTargets = false;
	this.morphNormals = false;

	this.setValues( parameters );

};

THREE.MeshPhongMaterial.prototype = Object.create( THREE.Material.prototype );
THREE.MeshPhongMaterial.prototype.constructor = THREE.MeshPhongMaterial;

THREE.MeshPhongMaterial.prototype.copy = function ( source ) {

	THREE.Material.prototype.copy.call( this, source );

	this.color.copy( source.color );
	this.emissive.copy( source.emissive );
	this.specular.copy( source.specular );
	this.shininess = source.shininess;

	this.map = source.map;

	this.lightMap = source.lightMap;
	this.lightMapIntensity = source.lightMapIntensity;

	this.aoMap = source.aoMap;
	this.aoMapIntensity = source.aoMapIntensity;

	this.emissiveMap = source.emissiveMap;

	this.bumpMap = source.bumpMap;
	this.bumpScale = source.bumpScale;

	this.normalMap = source.normalMap;
	this.normalScale.copy( source.normalScale );

	this.displacementMap = source.displacementMap;
	this.displacementScale = source.displacementScale;
	this.displacementBias = source.displacementBias;

	this.specularMap = source.specularMap;

	this.alphaMap = source.alphaMap;

	this.envMap = source.envMap;
	this.combine = source.combine;
	this.reflectivity = source.reflectivity;
	this.refractionRatio = source.refractionRatio;

	this.fog = source.fog;

	this.shading = source.shading;

	this.wireframe = source.wireframe;
	this.wireframeLinewidth = source.wireframeLinewidth;
	this.wireframeLinecap = source.wireframeLinecap;
	this.wireframeLinejoin = source.wireframeLinejoin;

	this.vertexColors = source.vertexColors;

	this.skinning = source.skinning;
	this.morphTargets = source.morphTargets;
	this.morphNormals = source.morphNormals;

	return this;

};

// File:src/materials/MeshStandardMaterial.js

/**
 * @author WestLangley / http://github.com/WestLangley
 *
 * parameters = {
 *  color: <hex>,
 *  roughness: <float>,
 *  metalness: <float>,

 *  emissive: <hex>,
 *  opacity: <float>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  emissiveMap: new THREE.Texture( <Image> ),
 *
 *  bumpMap: new THREE.Texture( <Image> ),
 *  bumpScale: <float>,
 *
 *  normalMap: new THREE.Texture( <Image> ),
 *  normalScale: <Vector2>,
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  roughnessMap: new THREE.Texture( <Image> ),
 *
 *  metalnessMap: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *  envMapIntensity: <float>
 *
 *  refractionRatio: <float>,
 *
 *  shading: THREE.SmoothShading,
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  vertexColors: THREE.NoColors / THREE.VertexColors / THREE.FaceColors,
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *  morphNormals: <bool>,
 *
 *	fog: <bool>
 * }
 */

THREE.MeshStandardMaterial = function ( parameters ) {

	THREE.Material.call( this );

	this.type = 'MeshStandardMaterial';

	this.color = new THREE.Color( 0xffffff ); // diffuse
	this.roughness = 0.5;
	this.metalness = 0.5;

	this.emissive = new THREE.Color( 0x000000 );

	this.map = null;

	this.lightMap = null;
	this.lightMapIntensity = 1.0;

	this.aoMap = null;
	this.aoMapIntensity = 1.0;

	this.emissiveMap = null;

	this.bumpMap = null;
	this.bumpScale = 1;

	this.normalMap = null;
	this.normalScale = new THREE.Vector2( 1, 1 );

	this.displacementMap = null;
	this.displacementScale = 1;
	this.displacementBias = 0;

	this.roughnessMap = null;

	this.metalnessMap = null;

	this.alphaMap = null;

	this.envMap = null;
	this.envMapIntensity = 1.0;

	this.refractionRatio = 0.98;

	this.fog = true;

	this.shading = THREE.SmoothShading;

	this.wireframe = false;
	this.wireframeLinewidth = 1;
	this.wireframeLinecap = 'round';
	this.wireframeLinejoin = 'round';

	this.vertexColors = THREE.NoColors;

	this.skinning = false;
	this.morphTargets = false;
	this.morphNormals = false;

	this.setValues( parameters );

};

THREE.MeshStandardMaterial.prototype = Object.create( THREE.Material.prototype );
THREE.MeshStandardMaterial.prototype.constructor = THREE.MeshStandardMaterial;

THREE.MeshStandardMaterial.prototype.copy = function ( source ) {

	THREE.Material.prototype.copy.call( this, source );

	this.color.copy( source.color );
	this.roughness = source.roughness;
	this.metalness = source.metalness;

	this.emissive.copy( source.emissive );

	this.map = source.map;

	this.lightMap = source.lightMap;
	this.lightMapIntensity = source.lightMapIntensity;

	this.aoMap = source.aoMap;
	this.aoMapIntensity = source.aoMapIntensity;

	this.emissiveMap = source.emissiveMap;

	this.bumpMap = source.bumpMap;
	this.bumpScale = source.bumpScale;

	this.normalMap = source.normalMap;
	this.normalScale.copy( source.normalScale );

	this.displacementMap = source.displacementMap;
	this.displacementScale = source.displacementScale;
	this.displacementBias = source.displacementBias;

	this.roughnessMap = source.roughnessMap;

	this.metalnessMap = source.metalnessMap;

	this.alphaMap = source.alphaMap;

	this.envMap = source.envMap;
	this.envMapIntensity = source.envMapIntensity;

	this.refractionRatio = source.refractionRatio;

	this.fog = source.fog;

	this.shading = source.shading;

	this.wireframe = source.wireframe;
	this.wireframeLinewidth = source.wireframeLinewidth;
	this.wireframeLinecap = source.wireframeLinecap;
	this.wireframeLinejoin = source.wireframeLinejoin;

	this.vertexColors = source.vertexColors;

	this.skinning = source.skinning;
	this.morphTargets = source.morphTargets;
	this.morphNormals = source.morphNormals;

	return this;

};

// File:src/materials/MeshDepthMaterial.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 *
 * parameters = {
 *  opacity: <float>,
 *
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>
 * }
 */

THREE.MeshDepthMaterial = function ( parameters ) {

	THREE.Material.call( this );

	this.type = 'MeshDepthMaterial';

	this.morphTargets = false;
	this.wireframe = false;
	this.wireframeLinewidth = 1;

	this.setValues( parameters );

};

THREE.MeshDepthMaterial.prototype = Object.create( THREE.Material.prototype );
THREE.MeshDepthMaterial.prototype.constructor = THREE.MeshDepthMaterial;

THREE.MeshDepthMaterial.prototype.copy = function ( source ) {

	THREE.Material.prototype.copy.call( this, source );

	this.wireframe = source.wireframe;
	this.wireframeLinewidth = source.wireframeLinewidth;

	return this;

};

// File:src/materials/MeshNormalMaterial.js

/**
 * @author mrdoob / http://mrdoob.com/
 *
 * parameters = {
 *  opacity: <float>,
 *
 *  shading: THREE.FlatShading,
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>
 * }
 */

THREE.MeshNormalMaterial = function ( parameters ) {

	THREE.Material.call( this, parameters );

	this.type = 'MeshNormalMaterial';

	this.wireframe = false;
	this.wireframeLinewidth = 1;

	this.morphTargets = false;

	this.setValues( parameters );

};

THREE.MeshNormalMaterial.prototype = Object.create( THREE.Material.prototype );
THREE.MeshNormalMaterial.prototype.constructor = THREE.MeshNormalMaterial;

THREE.MeshNormalMaterial.prototype.copy = function ( source ) {

	THREE.Material.prototype.copy.call( this, source );

	this.wireframe = source.wireframe;
	this.wireframeLinewidth = source.wireframeLinewidth;

	return this;

};

// File:src/materials/MultiMaterial.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.MultiMaterial = function ( materials ) {

	this.uuid = THREE.Math.generateUUID();

	this.type = 'MultiMaterial';

	this.materials = materials instanceof Array ? materials : [];

	this.visible = true;

};

THREE.MultiMaterial.prototype = {

	constructor: THREE.MultiMaterial,

	toJSON: function ( meta ) {

		var output = {
			metadata: {
				version: 4.2,
				type: 'material',
				generator: 'MaterialExporter'
			},
			uuid: this.uuid,
			type: this.type,
			materials: []
		};

		var materials = this.materials;

		for ( var i = 0, l = materials.length; i < l; i ++ ) {

			var material = materials[ i ].toJSON( meta );
			delete material.metadata;

			output.materials.push( material );

		}

		output.visible = this.visible;

		return output;

	},

	clone: function () {

		var material = new this.constructor();

		for ( var i = 0; i < this.materials.length; i ++ ) {

			material.materials.push( this.materials[ i ].clone() );

		}

		material.visible = this.visible;

		return material;

	}

};

// File:src/materials/PointsMaterial.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 *
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *  map: new THREE.Texture( <Image> ),
 *
 *  size: <float>,
 *  sizeAttenuation: <bool>,
 *
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  vertexColors: <bool>,
 *
 *  fog: <bool>
 * }
 */

THREE.PointsMaterial = function ( parameters ) {

	THREE.Material.call( this );

	this.type = 'PointsMaterial';

	this.color = new THREE.Color( 0xffffff );

	this.map = null;

	this.size = 1;
	this.sizeAttenuation = true;

	this.vertexColors = THREE.NoColors;

	this.fog = true;

	this.setValues( parameters );

};

THREE.PointsMaterial.prototype = Object.create( THREE.Material.prototype );
THREE.PointsMaterial.prototype.constructor = THREE.PointsMaterial;

THREE.PointsMaterial.prototype.copy = function ( source ) {

	THREE.Material.prototype.copy.call( this, source );

	this.color.copy( source.color );

	this.map = source.map;

	this.size = source.size;
	this.sizeAttenuation = source.sizeAttenuation;

	this.vertexColors = source.vertexColors;

	this.fog = source.fog;

	return this;

};

// File:src/materials/ShaderMaterial.js

/**
 * @author alteredq / http://alteredqualia.com/
 *
 * parameters = {
 *  defines: { "label" : "value" },
 *  uniforms: { "parameter1": { type: "f", value: 1.0 }, "parameter2": { type: "i" value2: 2 } },
 *
 *  fragmentShader: <string>,
 *  vertexShader: <string>,
 *
 *  shading: THREE.SmoothShading,
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  lights: <bool>,
 *
 *  vertexColors: THREE.NoColors / THREE.VertexColors / THREE.FaceColors,
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *  morphNormals: <bool>,
 *
 *	fog: <bool>
 * }
 */

THREE.ShaderMaterial = function ( parameters ) {

	THREE.Material.call( this );

	this.type = 'ShaderMaterial';

	this.defines = {};
	this.uniforms = {};

	this.vertexShader = 'void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}';
	this.fragmentShader = 'void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}';

	this.shading = THREE.SmoothShading;

	this.linewidth = 1;

	this.wireframe = false;
	this.wireframeLinewidth = 1;

	this.fog = false; // set to use scene fog

	this.lights = false; // set to use scene lights

	this.vertexColors = THREE.NoColors; // set to use "color" attribute stream

	this.skinning = false; // set to use skinning attribute streams

	this.morphTargets = false; // set to use morph targets
	this.morphNormals = false; // set to use morph normals

	this.extensions = {
		derivatives: false, // set to use derivatives
		fragDepth: false, // set to use fragment depth values
		drawBuffers: false, // set to use draw buffers
		shaderTextureLOD: false // set to use shader texture LOD
	};

	// When rendered geometry doesn't include these attributes but the material does,
	// use these default values in WebGL. This avoids errors when buffer data is missing.
	this.defaultAttributeValues = {
		'color': [ 1, 1, 1 ],
		'uv': [ 0, 0 ],
		'uv2': [ 0, 0 ]
	};

	this.index0AttributeName = undefined;

	if ( parameters !== undefined ) {

		if ( parameters.attributes !== undefined ) {

			console.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' );

		}

		this.setValues( parameters );

	}

};

THREE.ShaderMaterial.prototype = Object.create( THREE.Material.prototype );
THREE.ShaderMaterial.prototype.constructor = THREE.ShaderMaterial;

THREE.ShaderMaterial.prototype.copy = function ( source ) {

	THREE.Material.prototype.copy.call( this, source );

	this.fragmentShader = source.fragmentShader;
	this.vertexShader = source.vertexShader;

	this.uniforms = THREE.UniformsUtils.clone( source.uniforms );

	this.defines = source.defines;

	this.shading = source.shading;

	this.wireframe = source.wireframe;
	this.wireframeLinewidth = source.wireframeLinewidth;

	this.fog = source.fog;

	this.lights = source.lights;

	this.vertexColors = source.vertexColors;

	this.skinning = source.skinning;

	this.morphTargets = source.morphTargets;
	this.morphNormals = source.morphNormals;

	this.extensions = source.extensions;

	return this;

};

THREE.ShaderMaterial.prototype.toJSON = function ( meta ) {

	var data = THREE.Material.prototype.toJSON.call( this, meta );

	data.uniforms = this.uniforms;
	data.vertexShader = this.vertexShader;
	data.fragmentShader = this.fragmentShader;

	return data;

};

// File:src/materials/RawShaderMaterial.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.RawShaderMaterial = function ( parameters ) {

	THREE.ShaderMaterial.call( this, parameters );

	this.type = 'RawShaderMaterial';

};

THREE.RawShaderMaterial.prototype = Object.create( THREE.ShaderMaterial.prototype );
THREE.RawShaderMaterial.prototype.constructor = THREE.RawShaderMaterial;
// File:src/materials/SpriteMaterial.js

/**
 * @author alteredq / http://alteredqualia.com/
 *
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *  map: new THREE.Texture( <Image> ),
 *
 *  blending: THREE.NormalBlending,
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *	uvOffset: new THREE.Vector2(),
 *	uvScale: new THREE.Vector2(),
 *
 *  fog: <bool>
 * }
 */

THREE.SpriteMaterial = function ( parameters ) {

	THREE.Material.call( this );

	this.type = 'SpriteMaterial';

	this.color = new THREE.Color( 0xffffff );
	this.map = null;

	this.rotation = 0;

	this.fog = false;

	// set parameters

	this.setValues( parameters );

};

THREE.SpriteMaterial.prototype = Object.create( THREE.Material.prototype );
THREE.SpriteMaterial.prototype.constructor = THREE.SpriteMaterial;

THREE.SpriteMaterial.prototype.copy = function ( source ) {

	THREE.Material.prototype.copy.call( this, source );

	this.color.copy( source.color );
	this.map = source.map;

	this.rotation = source.rotation;

	this.fog = source.fog;

	return this;

};

// File:src/textures/Texture.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 * @author szimek / https://github.com/szimek/
 */

THREE.Texture = function ( image, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {

	Object.defineProperty( this, 'id', { value: THREE.TextureIdCount ++ } );

	this.uuid = THREE.Math.generateUUID();

	this.name = '';
	this.sourceFile = '';

	this.image = image !== undefined ? image : THREE.Texture.DEFAULT_IMAGE;
	this.mipmaps = [];

	this.mapping = mapping !== undefined ? mapping : THREE.Texture.DEFAULT_MAPPING;

	this.wrapS = wrapS !== undefined ? wrapS : THREE.ClampToEdgeWrapping;
	this.wrapT = wrapT !== undefined ? wrapT : THREE.ClampToEdgeWrapping;

	this.magFilter = magFilter !== undefined ? magFilter : THREE.LinearFilter;
	this.minFilter = minFilter !== undefined ? minFilter : THREE.LinearMipMapLinearFilter;

	this.anisotropy = anisotropy !== undefined ? anisotropy : 1;

	this.format = format !== undefined ? format : THREE.RGBAFormat;
	this.type = type !== undefined ? type : THREE.UnsignedByteType;

	this.offset = new THREE.Vector2( 0, 0 );
	this.repeat = new THREE.Vector2( 1, 1 );

	this.generateMipmaps = true;
	this.premultiplyAlpha = false;
	this.flipY = true;
	this.unpackAlignment = 4; // valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)

	this.version = 0;
	this.onUpdate = null;

};

THREE.Texture.DEFAULT_IMAGE = undefined;
THREE.Texture.DEFAULT_MAPPING = THREE.UVMapping;

THREE.Texture.prototype = {

	constructor: THREE.Texture,

	set needsUpdate ( value ) {

		if ( value === true ) this.version ++;

	},

	clone: function () {

		return new this.constructor().copy( this );

	},

	copy: function ( source ) {

		this.image = source.image;
		this.mipmaps = source.mipmaps.slice( 0 );

		this.mapping = source.mapping;

		this.wrapS = source.wrapS;
		this.wrapT = source.wrapT;

		this.magFilter = source.magFilter;
		this.minFilter = source.minFilter;

		this.anisotropy = source.anisotropy;

		this.format = source.format;
		this.type = source.type;

		this.offset.copy( source.offset );
		this.repeat.copy( source.repeat );

		this.generateMipmaps = source.generateMipmaps;
		this.premultiplyAlpha = source.premultiplyAlpha;
		this.flipY = source.flipY;
		this.unpackAlignment = source.unpackAlignment;

		return this;

	},

	toJSON: function ( meta ) {

		if ( meta.textures[ this.uuid ] !== undefined ) {

			return meta.textures[ this.uuid ];

		}

		function getDataURL( image ) {

			var canvas;

			if ( image.toDataURL !== undefined ) {

				canvas = image;

			} else {

				canvas = document.createElement( 'canvas' );
				canvas.width = image.width;
				canvas.height = image.height;

				canvas.getContext( '2d' ).drawImage( image, 0, 0, image.width, image.height );

			}

			if ( canvas.width > 2048 || canvas.height > 2048 ) {

				return canvas.toDataURL( 'image/jpeg', 0.6 );

			} else {

				return canvas.toDataURL( 'image/png' );

			}

		}

		var output = {
			metadata: {
				version: 4.4,
				type: 'Texture',
				generator: 'Texture.toJSON'
			},

			uuid: this.uuid,
			name: this.name,

			mapping: this.mapping,

			repeat: [ this.repeat.x, this.repeat.y ],
			offset: [ this.offset.x, this.offset.y ],
			wrap: [ this.wrapS, this.wrapT ],

			minFilter: this.minFilter,
			magFilter: this.magFilter,
			anisotropy: this.anisotropy
		};

		if ( this.image !== undefined ) {

			// TODO: Move to THREE.Image

			var image = this.image;

			if ( image.uuid === undefined ) {

				image.uuid = THREE.Math.generateUUID(); // UGH

			}

			if ( meta.images[ image.uuid ] === undefined ) {

				meta.images[ image.uuid ] = {
					uuid: image.uuid,
					url: getDataURL( image )
				};

			}

			output.image = image.uuid;

		}

		meta.textures[ this.uuid ] = output;

		return output;

	},

	dispose: function () {

		this.dispatchEvent( { type: 'dispose' } );

	},

	transformUv: function ( uv ) {

		if ( this.mapping !== THREE.UVMapping )  return;

		uv.multiply( this.repeat );
		uv.add( this.offset );

		if ( uv.x < 0 || uv.x > 1 ) {

			switch ( this.wrapS ) {

				case THREE.RepeatWrapping:

					uv.x = uv.x - Math.floor( uv.x );
					break;

				case THREE.ClampToEdgeWrapping:

					uv.x = uv.x < 0 ? 0 : 1;
					break;

				case THREE.MirroredRepeatWrapping:

					if ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) {

						uv.x = Math.ceil( uv.x ) - uv.x;

					} else {

						uv.x = uv.x - Math.floor( uv.x );

					}
					break;

			}

		}

		if ( uv.y < 0 || uv.y > 1 ) {

			switch ( this.wrapT ) {

				case THREE.RepeatWrapping:

					uv.y = uv.y - Math.floor( uv.y );
					break;

				case THREE.ClampToEdgeWrapping:

					uv.y = uv.y < 0 ? 0 : 1;
					break;

				case THREE.MirroredRepeatWrapping:

					if ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) {

						uv.y = Math.ceil( uv.y ) - uv.y;

					} else {

						uv.y = uv.y - Math.floor( uv.y );

					}
					break;

			}

		}

		if ( this.flipY ) {

			uv.y = 1 - uv.y;

		}

	}

};

THREE.EventDispatcher.prototype.apply( THREE.Texture.prototype );

THREE.TextureIdCount = 0;

// File:src/textures/CanvasTexture.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.CanvasTexture = function ( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {

	THREE.Texture.call( this, canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

	this.needsUpdate = true;

};

THREE.CanvasTexture.prototype = Object.create( THREE.Texture.prototype );
THREE.CanvasTexture.prototype.constructor = THREE.CanvasTexture;

// File:src/textures/CubeTexture.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.CubeTexture = function ( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {

	mapping = mapping !== undefined ? mapping : THREE.CubeReflectionMapping;

	THREE.Texture.call( this, images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

	this.images = images;
	this.flipY = false;

};

THREE.CubeTexture.prototype = Object.create( THREE.Texture.prototype );
THREE.CubeTexture.prototype.constructor = THREE.CubeTexture;

THREE.CubeTexture.prototype.copy = function ( source ) {

	THREE.Texture.prototype.copy.call( this, source );
	
	this.images = source.images;
	
	return this;

};
// File:src/textures/CompressedTexture.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.CompressedTexture = function ( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy ) {

	THREE.Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

	this.image = { width: width, height: height };
	this.mipmaps = mipmaps;

	// no flipping for cube textures
	// (also flipping doesn't work for compressed textures )

	this.flipY = false;

	// can't generate mipmaps for compressed textures
	// mips must be embedded in DDS files

	this.generateMipmaps = false;

};

THREE.CompressedTexture.prototype = Object.create( THREE.Texture.prototype );
THREE.CompressedTexture.prototype.constructor = THREE.CompressedTexture;

// File:src/textures/DataTexture.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.DataTexture = function ( data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy ) {

	THREE.Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

	this.image = { data: data, width: width, height: height };

	this.magFilter = magFilter !== undefined ? magFilter : THREE.NearestFilter;
	this.minFilter = minFilter !== undefined ? minFilter : THREE.NearestFilter;
	
	this.flipY = false;
	this.generateMipmaps  = false;

};

THREE.DataTexture.prototype = Object.create( THREE.Texture.prototype );
THREE.DataTexture.prototype.constructor = THREE.DataTexture;

// File:src/textures/VideoTexture.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.VideoTexture = function ( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {

	THREE.Texture.call( this, video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

	this.generateMipmaps = false;

	var scope = this;

	function update() {

		requestAnimationFrame( update );

		if ( video.readyState === video.HAVE_ENOUGH_DATA ) {

			scope.needsUpdate = true;

		}

	}

	update();

};

THREE.VideoTexture.prototype = Object.create( THREE.Texture.prototype );
THREE.VideoTexture.prototype.constructor = THREE.VideoTexture;

// File:src/objects/Group.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Group = function () {

	THREE.Object3D.call( this );

	this.type = 'Group';

};

THREE.Group.prototype = Object.create( THREE.Object3D.prototype );
THREE.Group.prototype.constructor = THREE.Group;
// File:src/objects/Points.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.Points = function ( geometry, material ) {

	THREE.Object3D.call( this );

	this.type = 'Points';

	this.geometry = geometry !== undefined ? geometry : new THREE.Geometry();
	this.material = material !== undefined ? material : new THREE.PointsMaterial( { color: Math.random() * 0xffffff } );

};

THREE.Points.prototype = Object.create( THREE.Object3D.prototype );
THREE.Points.prototype.constructor = THREE.Points;

THREE.Points.prototype.raycast = ( function () {

	var inverseMatrix = new THREE.Matrix4();
	var ray = new THREE.Ray();
	var sphere = new THREE.Sphere();

	return function raycast( raycaster, intersects ) {

		var object = this;
		var geometry = this.geometry;
		var matrixWorld = this.matrixWorld;
		var threshold = raycaster.params.Points.threshold;

		// Checking boundingSphere distance to ray

		if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

		sphere.copy( geometry.boundingSphere );
		sphere.applyMatrix4( matrixWorld );

		if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;

		//

		inverseMatrix.getInverse( matrixWorld );
		ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );

		var localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
		var localThresholdSq = localThreshold * localThreshold;
		var position = new THREE.Vector3();

		function testPoint( point, index ) {

			var rayPointDistanceSq = ray.distanceSqToPoint( point );

			if ( rayPointDistanceSq < localThresholdSq ) {

				var intersectPoint = ray.closestPointToPoint( point );
				intersectPoint.applyMatrix4( matrixWorld );

				var distance = raycaster.ray.origin.distanceTo( intersectPoint );

				if ( distance < raycaster.near || distance > raycaster.far ) return;

				intersects.push( {

					distance: distance,
					distanceToRay: Math.sqrt( rayPointDistanceSq ),
					point: intersectPoint.clone(),
					index: index,
					face: null,
					object: object

				} );

			}

		}

		if ( geometry instanceof THREE.BufferGeometry ) {

			var index = geometry.index;
			var attributes = geometry.attributes;
			var positions = attributes.position.array;

			if ( index !== null ) {

				var indices = index.array;

				for ( var i = 0, il = indices.length; i < il; i ++ ) {

					var a = indices[ i ];

					position.fromArray( positions, a * 3 );

					testPoint( position, a );

				}

			} else {

				for ( var i = 0, l = positions.length / 3; i < l; i ++ ) {

					position.fromArray( positions, i * 3 );

					testPoint( position, i );

				}

			}

		} else {

			var vertices = geometry.vertices;

			for ( var i = 0, l = vertices.length; i < l; i ++ ) {

				testPoint( vertices[ i ], i );

			}

		}

	};

}() );

THREE.Points.prototype.clone = function () {

	return new this.constructor( this.geometry, this.material ).copy( this );

};

// File:src/objects/Line.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Line = function ( geometry, material, mode ) {

	if ( mode === 1 ) {

		console.warn( 'THREE.Line: parameter THREE.LinePieces no longer supported. Created THREE.LineSegments instead.' );
		return new THREE.LineSegments( geometry, material );

	}

	THREE.Object3D.call( this );

	this.type = 'Line';

	this.geometry = geometry !== undefined ? geometry : new THREE.Geometry();
	this.material = material !== undefined ? material : new THREE.LineBasicMaterial( { color: Math.random() * 0xffffff } );

};

THREE.Line.prototype = Object.create( THREE.Object3D.prototype );
THREE.Line.prototype.constructor = THREE.Line;

THREE.Line.prototype.raycast = ( function () {

	var inverseMatrix = new THREE.Matrix4();
	var ray = new THREE.Ray();
	var sphere = new THREE.Sphere();

	return function raycast( raycaster, intersects ) {

		var precision = raycaster.linePrecision;
		var precisionSq = precision * precision;

		var geometry = this.geometry;
		var matrixWorld = this.matrixWorld;

		// Checking boundingSphere distance to ray

		if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

		sphere.copy( geometry.boundingSphere );
		sphere.applyMatrix4( matrixWorld );

		if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;

		//

		inverseMatrix.getInverse( matrixWorld );
		ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );

		var vStart = new THREE.Vector3();
		var vEnd = new THREE.Vector3();
		var interSegment = new THREE.Vector3();
		var interRay = new THREE.Vector3();
		var step = this instanceof THREE.LineSegments ? 2 : 1;

		if ( geometry instanceof THREE.BufferGeometry ) {

			var index = geometry.index;
			var attributes = geometry.attributes;
			var positions = attributes.position.array;

			if ( index !== null ) {

				var indices = index.array;

				for ( var i = 0, l = indices.length - 1; i < l; i += step ) {

					var a = indices[ i ];
					var b = indices[ i + 1 ];

					vStart.fromArray( positions, a * 3 );
					vEnd.fromArray( positions, b * 3 );

					var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );

					if ( distSq > precisionSq ) continue;

					interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

					var distance = raycaster.ray.origin.distanceTo( interRay );

					if ( distance < raycaster.near || distance > raycaster.far ) continue;

					intersects.push( {

						distance: distance,
						// What do we want? intersection point on the ray or on the segment??
						// point: raycaster.ray.at( distance ),
						point: interSegment.clone().applyMatrix4( this.matrixWorld ),
						index: i,
						face: null,
						faceIndex: null,
						object: this

					} );

				}

			} else {

				for ( var i = 0, l = positions.length / 3 - 1; i < l; i += step ) {

					vStart.fromArray( positions, 3 * i );
					vEnd.fromArray( positions, 3 * i + 3 );

					var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );

					if ( distSq > precisionSq ) continue;

					interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

					var distance = raycaster.ray.origin.distanceTo( interRay );

					if ( distance < raycaster.near || distance > raycaster.far ) continue;

					intersects.push( {

						distance: distance,
						// What do we want? intersection point on the ray or on the segment??
						// point: raycaster.ray.at( distance ),
						point: interSegment.clone().applyMatrix4( this.matrixWorld ),
						index: i,
						face: null,
						faceIndex: null,
						object: this

					} );

				}

			}

		} else if ( geometry instanceof THREE.Geometry ) {

			var vertices = geometry.vertices;
			var nbVertices = vertices.length;

			for ( var i = 0; i < nbVertices - 1; i += step ) {

				var distSq = ray.distanceSqToSegment( vertices[ i ], vertices[ i + 1 ], interRay, interSegment );

				if ( distSq > precisionSq ) continue;

				interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

				var distance = raycaster.ray.origin.distanceTo( interRay );

				if ( distance < raycaster.near || distance > raycaster.far ) continue;

				intersects.push( {

					distance: distance,
					// What do we want? intersection point on the ray or on the segment??
					// point: raycaster.ray.at( distance ),
					point: interSegment.clone().applyMatrix4( this.matrixWorld ),
					index: i,
					face: null,
					faceIndex: null,
					object: this

				} );

			}

		}

	};

}() );

THREE.Line.prototype.clone = function () {

	return new this.constructor( this.geometry, this.material ).copy( this );

};

// DEPRECATED

THREE.LineStrip = 0;
THREE.LinePieces = 1;

// File:src/objects/LineSegments.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.LineSegments = function ( geometry, material ) {

	THREE.Line.call( this, geometry, material );

	this.type = 'LineSegments';

};

THREE.LineSegments.prototype = Object.create( THREE.Line.prototype );
THREE.LineSegments.prototype.constructor = THREE.LineSegments;

// File:src/objects/Mesh.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 * @author mikael emtinger / http://gomo.se/
 * @author jonobr1 / http://jonobr1.com/
 */

THREE.Mesh = function ( geometry, material ) {

	THREE.Object3D.call( this );

	this.type = 'Mesh';

	this.geometry = geometry !== undefined ? geometry : new THREE.Geometry();
	this.material = material !== undefined ? material : new THREE.MeshBasicMaterial( { color: Math.random() * 0xffffff } );

	this.drawMode = THREE.TrianglesDrawMode;

	this.updateMorphTargets();

};

THREE.Mesh.prototype = Object.create( THREE.Object3D.prototype );
THREE.Mesh.prototype.constructor = THREE.Mesh;

THREE.Mesh.prototype.setDrawMode = function ( value ) {

	this.drawMode = value;

};

THREE.Mesh.prototype.updateMorphTargets = function () {

	if ( this.geometry.morphTargets !== undefined && this.geometry.morphTargets.length > 0 ) {

		this.morphTargetBase = - 1;
		this.morphTargetInfluences = [];
		this.morphTargetDictionary = {};

		for ( var m = 0, ml = this.geometry.morphTargets.length; m < ml; m ++ ) {

			this.morphTargetInfluences.push( 0 );
			this.morphTargetDictionary[ this.geometry.morphTargets[ m ].name ] = m;

		}

	}

};

THREE.Mesh.prototype.getMorphTargetIndexByName = function ( name ) {

	if ( this.morphTargetDictionary[ name ] !== undefined ) {

		return this.morphTargetDictionary[ name ];

	}

	console.warn( 'THREE.Mesh.getMorphTargetIndexByName: morph target ' + name + ' does not exist. Returning 0.' );

	return 0;

};


THREE.Mesh.prototype.raycast = ( function () {

	var inverseMatrix = new THREE.Matrix4();
	var ray = new THREE.Ray();
	var sphere = new THREE.Sphere();

	var vA = new THREE.Vector3();
	var vB = new THREE.Vector3();
	var vC = new THREE.Vector3();

	var tempA = new THREE.Vector3();
	var tempB = new THREE.Vector3();
	var tempC = new THREE.Vector3();

	var uvA = new THREE.Vector2();
	var uvB = new THREE.Vector2();
	var uvC = new THREE.Vector2();

	var barycoord = new THREE.Vector3();

	var intersectionPoint = new THREE.Vector3();
	var intersectionPointWorld = new THREE.Vector3();

	function uvIntersection( point, p1, p2, p3, uv1, uv2, uv3 ) {

		THREE.Triangle.barycoordFromPoint( point, p1, p2, p3, barycoord );

		uv1.multiplyScalar( barycoord.x );
		uv2.multiplyScalar( barycoord.y );
		uv3.multiplyScalar( barycoord.z );

		uv1.add( uv2 ).add( uv3 );

		return uv1.clone();

	}

	function checkIntersection( object, raycaster, ray, pA, pB, pC, point ) {

		var intersect;
		var material = object.material;

		if ( material.side === THREE.BackSide ) {

			intersect = ray.intersectTriangle( pC, pB, pA, true, point );

		} else {

			intersect = ray.intersectTriangle( pA, pB, pC, material.side !== THREE.DoubleSide, point );

		}

		if ( intersect === null ) return null;

		intersectionPointWorld.copy( point );
		intersectionPointWorld.applyMatrix4( object.matrixWorld );

		var distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );

		if ( distance < raycaster.near || distance > raycaster.far ) return null;

		return {
			distance: distance,
			point: intersectionPointWorld.clone(),
			object: object
		};

	}

	function checkBufferGeometryIntersection( object, raycaster, ray, positions, uvs, a, b, c ) {

		vA.fromArray( positions, a * 3 );
		vB.fromArray( positions, b * 3 );
		vC.fromArray( positions, c * 3 );

		var intersection = checkIntersection( object, raycaster, ray, vA, vB, vC, intersectionPoint );

		if ( intersection ) {

			if ( uvs ) {

				uvA.fromArray( uvs, a * 2 );
				uvB.fromArray( uvs, b * 2 );
				uvC.fromArray( uvs, c * 2 );

				intersection.uv = uvIntersection( intersectionPoint,  vA, vB, vC,  uvA, uvB, uvC );

			}

			intersection.face = new THREE.Face3( a, b, c, THREE.Triangle.normal( vA, vB, vC ) );
			intersection.faceIndex = a;

		}

		return intersection;

	}

	return function raycast( raycaster, intersects ) {

		var geometry = this.geometry;
		var material = this.material;
		var matrixWorld = this.matrixWorld;

		if ( material === undefined ) return;

		// Checking boundingSphere distance to ray

		if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

		sphere.copy( geometry.boundingSphere );
		sphere.applyMatrix4( matrixWorld );

		if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;

		//

		inverseMatrix.getInverse( matrixWorld );
		ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );

		// Check boundingBox before continuing

		if ( geometry.boundingBox !== null ) {

			if ( ray.intersectsBox( geometry.boundingBox ) === false ) return;

		}

		var uvs, intersection;

		if ( geometry instanceof THREE.BufferGeometry ) {

			var a, b, c;
			var index = geometry.index;
			var attributes = geometry.attributes;
			var positions = attributes.position.array;

			if ( attributes.uv !== undefined ) {

				uvs = attributes.uv.array;

			}

			if ( index !== null ) {

				var indices = index.array;

				for ( var i = 0, l = indices.length; i < l; i += 3 ) {

					a = indices[ i ];
					b = indices[ i + 1 ];
					c = indices[ i + 2 ];

					intersection = checkBufferGeometryIntersection( this, raycaster, ray, positions, uvs, a, b, c );

					if ( intersection ) {

						intersection.faceIndex = Math.floor( i / 3 ); // triangle number in indices buffer semantics
						intersects.push( intersection );

					}

				}

			} else {


				for ( var i = 0, l = positions.length; i < l; i += 9 ) {

					a = i / 3;
					b = a + 1;
					c = a + 2;

					intersection = checkBufferGeometryIntersection( this, raycaster, ray, positions, uvs, a, b, c );

					if ( intersection ) {

						intersection.index = a; // triangle number in positions buffer semantics
						intersects.push( intersection );

					}

				}

			}

		} else if ( geometry instanceof THREE.Geometry ) {

			var fvA, fvB, fvC;
			var isFaceMaterial = material instanceof THREE.MeshFaceMaterial;
			var materials = isFaceMaterial === true ? material.materials : null;

			var vertices = geometry.vertices;
			var faces = geometry.faces;
			var faceVertexUvs = geometry.faceVertexUvs[ 0 ];
			if ( faceVertexUvs.length > 0 ) uvs = faceVertexUvs;

			for ( var f = 0, fl = faces.length; f < fl; f ++ ) {

				var face = faces[ f ];
				var faceMaterial = isFaceMaterial === true ? materials[ face.materialIndex ] : material;

				if ( faceMaterial === undefined ) continue;

				fvA = vertices[ face.a ];
				fvB = vertices[ face.b ];
				fvC = vertices[ face.c ];

				if ( faceMaterial.morphTargets === true ) {

					var morphTargets = geometry.morphTargets;
					var morphInfluences = this.morphTargetInfluences;

					vA.set( 0, 0, 0 );
					vB.set( 0, 0, 0 );
					vC.set( 0, 0, 0 );

					for ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) {

						var influence = morphInfluences[ t ];

						if ( influence === 0 ) continue;

						var targets = morphTargets[ t ].vertices;

						vA.addScaledVector( tempA.subVectors( targets[ face.a ], fvA ), influence );
						vB.addScaledVector( tempB.subVectors( targets[ face.b ], fvB ), influence );
						vC.addScaledVector( tempC.subVectors( targets[ face.c ], fvC ), influence );

					}

					vA.add( fvA );
					vB.add( fvB );
					vC.add( fvC );

					fvA = vA;
					fvB = vB;
					fvC = vC;

				}

				intersection = checkIntersection( this, raycaster, ray, fvA, fvB, fvC, intersectionPoint );

				if ( intersection ) {

					if ( uvs ) {

						var uvs_f = uvs[ f ];
						uvA.copy( uvs_f[ 0 ] );
						uvB.copy( uvs_f[ 1 ] );
						uvC.copy( uvs_f[ 2 ] );

						intersection.uv = uvIntersection( intersectionPoint, fvA, fvB, fvC, uvA, uvB, uvC );

					}

					intersection.face = face;
					intersection.faceIndex = f;
					intersects.push( intersection );

				}

			}

		}

	};

}() );

THREE.Mesh.prototype.clone = function () {

	return new this.constructor( this.geometry, this.material ).copy( this );

};

// File:src/objects/Bone.js

/**
 * @author mikael emtinger / http://gomo.se/
 * @author alteredq / http://alteredqualia.com/
 * @author ikerr / http://verold.com
 */

THREE.Bone = function ( skin ) {

	THREE.Object3D.call( this );

	this.type = 'Bone';

	this.skin = skin;

};

THREE.Bone.prototype = Object.create( THREE.Object3D.prototype );
THREE.Bone.prototype.constructor = THREE.Bone;

THREE.Bone.prototype.copy = function ( source ) {
	
	THREE.Object3D.prototype.copy.call( this, source );
	
	this.skin = source.skin;
	
	return this;

};

// File:src/objects/Skeleton.js

/**
 * @author mikael emtinger / http://gomo.se/
 * @author alteredq / http://alteredqualia.com/
 * @author michael guerrero / http://realitymeltdown.com
 * @author ikerr / http://verold.com
 */

THREE.Skeleton = function ( bones, boneInverses, useVertexTexture ) {

	this.useVertexTexture = useVertexTexture !== undefined ? useVertexTexture : true;

	this.identityMatrix = new THREE.Matrix4();

	// copy the bone array

	bones = bones || [];

	this.bones = bones.slice( 0 );

	// create a bone texture or an array of floats

	if ( this.useVertexTexture ) {

		// layout (1 matrix = 4 pixels)
		//      RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
		//  with  8x8  pixel texture max   16 bones * 4 pixels =  (8 * 8)
		//       16x16 pixel texture max   64 bones * 4 pixels = (16 * 16)
		//       32x32 pixel texture max  256 bones * 4 pixels = (32 * 32)
		//       64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)

		
		var size = Math.sqrt( this.bones.length * 4 ); // 4 pixels needed for 1 matrix
		size = THREE.Math.nextPowerOfTwo( Math.ceil( size ) );
		size = Math.max( size, 4 );

		this.boneTextureWidth = size;
		this.boneTextureHeight = size;

		this.boneMatrices = new Float32Array( this.boneTextureWidth * this.boneTextureHeight * 4 ); // 4 floats per RGBA pixel
		this.boneTexture = new THREE.DataTexture( this.boneMatrices, this.boneTextureWidth, this.boneTextureHeight, THREE.RGBAFormat, THREE.FloatType );

	} else {

		this.boneMatrices = new Float32Array( 16 * this.bones.length );

	}

	// use the supplied bone inverses or calculate the inverses

	if ( boneInverses === undefined ) {

		this.calculateInverses();

	} else {

		if ( this.bones.length === boneInverses.length ) {

			this.boneInverses = boneInverses.slice( 0 );

		} else {

			console.warn( 'THREE.Skeleton bonInverses is the wrong length.' );

			this.boneInverses = [];

			for ( var b = 0, bl = this.bones.length; b < bl; b ++ ) {

				this.boneInverses.push( new THREE.Matrix4() );

			}

		}

	}

};

THREE.Skeleton.prototype.calculateInverses = function () {

	this.boneInverses = [];

	for ( var b = 0, bl = this.bones.length; b < bl; b ++ ) {

		var inverse = new THREE.Matrix4();

		if ( this.bones[ b ] ) {

			inverse.getInverse( this.bones[ b ].matrixWorld );

		}

		this.boneInverses.push( inverse );

	}

};

THREE.Skeleton.prototype.pose = function () {

	var bone;

	// recover the bind-time world matrices

	for ( var b = 0, bl = this.bones.length; b < bl; b ++ ) {

		bone = this.bones[ b ];

		if ( bone ) {

			bone.matrixWorld.getInverse( this.boneInverses[ b ] );

		}

	}

	// compute the local matrices, positions, rotations and scales

	for ( var b = 0, bl = this.bones.length; b < bl; b ++ ) {

		bone = this.bones[ b ];

		if ( bone ) {

			if ( bone.parent ) {

				bone.matrix.getInverse( bone.parent.matrixWorld );
				bone.matrix.multiply( bone.matrixWorld );

			} else {

				bone.matrix.copy( bone.matrixWorld );

			}

			bone.matrix.decompose( bone.position, bone.quaternion, bone.scale );

		}

	}

};

THREE.Skeleton.prototype.update = ( function () {

	var offsetMatrix = new THREE.Matrix4();

	return function update() {

		// flatten bone matrices to array

		for ( var b = 0, bl = this.bones.length; b < bl; b ++ ) {

			// compute the offset between the current and the original transform

			var matrix = this.bones[ b ] ? this.bones[ b ].matrixWorld : this.identityMatrix;

			offsetMatrix.multiplyMatrices( matrix, this.boneInverses[ b ] );
			offsetMatrix.flattenToArrayOffset( this.boneMatrices, b * 16 );

		}

		if ( this.useVertexTexture ) {

			this.boneTexture.needsUpdate = true;

		}

	};

} )();

THREE.Skeleton.prototype.clone = function () {

	return new THREE.Skeleton( this.bones, this.boneInverses, this.useVertexTexture );

};

// File:src/objects/SkinnedMesh.js

/**
 * @author mikael emtinger / http://gomo.se/
 * @author alteredq / http://alteredqualia.com/
 * @author ikerr / http://verold.com
 */

THREE.SkinnedMesh = function ( geometry, material, useVertexTexture ) {

	THREE.Mesh.call( this, geometry, material );

	this.type = 'SkinnedMesh';

	this.bindMode = "attached";
	this.bindMatrix = new THREE.Matrix4();
	this.bindMatrixInverse = new THREE.Matrix4();

	// init bones

	// TODO: remove bone creation as there is no reason (other than
	// convenience) for THREE.SkinnedMesh to do this.

	var bones = [];

	if ( this.geometry && this.geometry.bones !== undefined ) {

		var bone, gbone;

		for ( var b = 0, bl = this.geometry.bones.length; b < bl; ++ b ) {

			gbone = this.geometry.bones[ b ];

			bone = new THREE.Bone( this );
			bones.push( bone );

			bone.name = gbone.name;
			bone.position.fromArray( gbone.pos );
			bone.quaternion.fromArray( gbone.rotq );
			if ( gbone.scl !== undefined ) bone.scale.fromArray( gbone.scl );

		}

		for ( var b = 0, bl = this.geometry.bones.length; b < bl; ++ b ) {

			gbone = this.geometry.bones[ b ];

			if ( gbone.parent !== - 1 && gbone.parent !== null ) {

				bones[ gbone.parent ].add( bones[ b ] );

			} else {

				this.add( bones[ b ] );

			}

		}

	}

	this.normalizeSkinWeights();

	this.updateMatrixWorld( true );
	this.bind( new THREE.Skeleton( bones, undefined, useVertexTexture ), this.matrixWorld );

};


THREE.SkinnedMesh.prototype = Object.create( THREE.Mesh.prototype );
THREE.SkinnedMesh.prototype.constructor = THREE.SkinnedMesh;

THREE.SkinnedMesh.prototype.bind = function( skeleton, bindMatrix ) {

	this.skeleton = skeleton;

	if ( bindMatrix === undefined ) {

		this.updateMatrixWorld( true );

		this.skeleton.calculateInverses();

		bindMatrix = this.matrixWorld;

	}

	this.bindMatrix.copy( bindMatrix );
	this.bindMatrixInverse.getInverse( bindMatrix );

};

THREE.SkinnedMesh.prototype.pose = function () {

	this.skeleton.pose();

};

THREE.SkinnedMesh.prototype.normalizeSkinWeights = function () {

	if ( this.geometry instanceof THREE.Geometry ) {

		for ( var i = 0; i < this.geometry.skinWeights.length; i ++ ) {

			var sw = this.geometry.skinWeights[ i ];

			var scale = 1.0 / sw.lengthManhattan();

			if ( scale !== Infinity ) {

				sw.multiplyScalar( scale );

			} else {

				sw.set( 1, 0, 0, 0 ); // do something reasonable

			}

		}

	} else if ( this.geometry instanceof THREE.BufferGeometry ) {

		var vec = new THREE.Vector4();

		var skinWeight = this.geometry.attributes.skinWeight;

		for ( var i = 0; i < skinWeight.count; i ++ ) {

			vec.x = skinWeight.getX( i );
			vec.y = skinWeight.getY( i );
			vec.z = skinWeight.getZ( i );
			vec.w = skinWeight.getW( i );

			var scale = 1.0 / vec.lengthManhattan();

			if ( scale !== Infinity ) {

				vec.multiplyScalar( scale );

			} else {

				vec.set( 1, 0, 0, 0 ); // do something reasonable

			}

			skinWeight.setXYZW( i, vec.x, vec.y, vec.z, vec.w );

		}

	}

};

THREE.SkinnedMesh.prototype.updateMatrixWorld = function( force ) {

	THREE.Mesh.prototype.updateMatrixWorld.call( this, true );

	if ( this.bindMode === "attached" ) {

		this.bindMatrixInverse.getInverse( this.matrixWorld );

	} else if ( this.bindMode === "detached" ) {

		this.bindMatrixInverse.getInverse( this.bindMatrix );

	} else {

		console.warn( 'THREE.SkinnedMesh unrecognized bindMode: ' + this.bindMode );

	}

};

THREE.SkinnedMesh.prototype.clone = function() {

	return new this.constructor( this.geometry, this.material, this.useVertexTexture ).copy( this );

};

// File:src/objects/LOD.js

/**
 * @author mikael emtinger / http://gomo.se/
 * @author alteredq / http://alteredqualia.com/
 * @author mrdoob / http://mrdoob.com/
 */

THREE.LOD = function () {

	THREE.Object3D.call( this );

	this.type = 'LOD';

	Object.defineProperties( this, {
		levels: {
			enumerable: true,
			value: []
		},
		objects: {
			get: function () {

				console.warn( 'THREE.LOD: .objects has been renamed to .levels.' );
				return this.levels;

			}
		}
	} );

};


THREE.LOD.prototype = Object.create( THREE.Object3D.prototype );
THREE.LOD.prototype.constructor = THREE.LOD;

THREE.LOD.prototype.addLevel = function ( object, distance ) {

	if ( distance === undefined ) distance = 0;

	distance = Math.abs( distance );

	var levels = this.levels;

	for ( var l = 0; l < levels.length; l ++ ) {

		if ( distance < levels[ l ].distance ) {

			break;

		}

	}

	levels.splice( l, 0, { distance: distance, object: object } );

	this.add( object );

};

THREE.LOD.prototype.getObjectForDistance = function ( distance ) {

	var levels = this.levels;

	for ( var i = 1, l = levels.length; i < l; i ++ ) {

		if ( distance < levels[ i ].distance ) {

			break;

		}

	}

	return levels[ i - 1 ].object;

};

THREE.LOD.prototype.raycast = ( function () {

	var matrixPosition = new THREE.Vector3();

	return function raycast( raycaster, intersects ) {

		matrixPosition.setFromMatrixPosition( this.matrixWorld );

		var distance = raycaster.ray.origin.distanceTo( matrixPosition );

		this.getObjectForDistance( distance ).raycast( raycaster, intersects );

	};

}() );

THREE.LOD.prototype.update = function () {

	var v1 = new THREE.Vector3();
	var v2 = new THREE.Vector3();

	return function update( camera ) {

		var levels = this.levels;

		if ( levels.length > 1 ) {

			v1.setFromMatrixPosition( camera.matrixWorld );
			v2.setFromMatrixPosition( this.matrixWorld );

			var distance = v1.distanceTo( v2 );

			levels[ 0 ].object.visible = true;

			for ( var i = 1, l = levels.length; i < l; i ++ ) {

				if ( distance >= levels[ i ].distance ) {

					levels[ i - 1 ].object.visible = false;
					levels[ i ].object.visible = true;

				} else {

					break;

				}

			}

			for ( ; i < l; i ++ ) {

				levels[ i ].object.visible = false;

			}

		}

	};

}();

THREE.LOD.prototype.copy = function ( source ) {

	THREE.Object3D.prototype.copy.call( this, source, false );

	var levels = source.levels;

	for ( var i = 0, l = levels.length; i < l; i ++ ) {

		var level = levels[ i ];

		this.addLevel( level.object.clone(), level.distance );

	}

	return this;

};

THREE.LOD.prototype.toJSON = function ( meta ) {

	var data = THREE.Object3D.prototype.toJSON.call( this, meta );

	data.object.levels = [];

	var levels = this.levels;

	for ( var i = 0, l = levels.length; i < l; i ++ ) {

		var level = levels[ i ];

		data.object.levels.push( {
			object: level.object.uuid,
			distance: level.distance
		} );

	}

	return data;

};

// File:src/objects/Sprite.js

/**
 * @author mikael emtinger / http://gomo.se/
 * @author alteredq / http://alteredqualia.com/
 */

THREE.Sprite = ( function () {

	var indices = new Uint16Array( [ 0, 1, 2,  0, 2, 3 ] );
	var vertices = new Float32Array( [ - 0.5, - 0.5, 0,   0.5, - 0.5, 0,   0.5, 0.5, 0,   - 0.5, 0.5, 0 ] );
	var uvs = new Float32Array( [ 0, 0,   1, 0,   1, 1,   0, 1 ] );

	var geometry = new THREE.BufferGeometry();
	geometry.setIndex( new THREE.BufferAttribute( indices, 1 ) );
	geometry.addAttribute( 'position', new THREE.BufferAttribute( vertices, 3 ) );
	geometry.addAttribute( 'uv', new THREE.BufferAttribute( uvs, 2 ) );

	return function Sprite( material ) {

		THREE.Object3D.call( this );

		this.type = 'Sprite';

		this.geometry = geometry;
		this.material = ( material !== undefined ) ? material : new THREE.SpriteMaterial();

	};

} )();

THREE.Sprite.prototype = Object.create( THREE.Object3D.prototype );
THREE.Sprite.prototype.constructor = THREE.Sprite;

THREE.Sprite.prototype.raycast = ( function () {

	var matrixPosition = new THREE.Vector3();

	return function raycast( raycaster, intersects ) {

		matrixPosition.setFromMatrixPosition( this.matrixWorld );

		var distanceSq = raycaster.ray.distanceSqToPoint( matrixPosition );
		var guessSizeSq = this.scale.x * this.scale.y;

		if ( distanceSq > guessSizeSq ) {

			return;

		}

		intersects.push( {

			distance: Math.sqrt( distanceSq ),
			point: this.position,
			face: null,
			object: this

		} );

	};

}() );

THREE.Sprite.prototype.clone = function () {

	return new this.constructor( this.material ).copy( this );

};

// Backwards compatibility

THREE.Particle = THREE.Sprite;

// File:src/objects/LensFlare.js

/**
 * @author mikael emtinger / http://gomo.se/
 * @author alteredq / http://alteredqualia.com/
 */

THREE.LensFlare = function ( texture, size, distance, blending, color ) {

	THREE.Object3D.call( this );

	this.lensFlares = [];

	this.positionScreen = new THREE.Vector3();
	this.customUpdateCallback = undefined;

	if ( texture !== undefined ) {

		this.add( texture, size, distance, blending, color );

	}

};

THREE.LensFlare.prototype = Object.create( THREE.Object3D.prototype );
THREE.LensFlare.prototype.constructor = THREE.LensFlare;


/*
 * Add: adds another flare
 */

THREE.LensFlare.prototype.add = function ( texture, size, distance, blending, color, opacity ) {

	if ( size === undefined ) size = - 1;
	if ( distance === undefined ) distance = 0;
	if ( opacity === undefined ) opacity = 1;
	if ( color === undefined ) color = new THREE.Color( 0xffffff );
	if ( blending === undefined ) blending = THREE.NormalBlending;

	distance = Math.min( distance, Math.max( 0, distance ) );

	this.lensFlares.push( {
		texture: texture,	// THREE.Texture
		size: size, 		// size in pixels (-1 = use texture.width)
		distance: distance, 	// distance (0-1) from light source (0=at light source)
		x: 0, y: 0, z: 0,	// screen position (-1 => 1) z = 0 is in front z = 1 is back
		scale: 1, 		// scale
		rotation: 0, 		// rotation
		opacity: opacity,	// opacity
		color: color,		// color
		blending: blending	// blending
	} );

};

/*
 * Update lens flares update positions on all flares based on the screen position
 * Set myLensFlare.customUpdateCallback to alter the flares in your project specific way.
 */

THREE.LensFlare.prototype.updateLensFlares = function () {

	var f, fl = this.lensFlares.length;
	var flare;
	var vecX = - this.positionScreen.x * 2;
	var vecY = - this.positionScreen.y * 2;

	for ( f = 0; f < fl; f ++ ) {

		flare = this.lensFlares[ f ];

		flare.x = this.positionScreen.x + vecX * flare.distance;
		flare.y = this.positionScreen.y + vecY * flare.distance;

		flare.wantedRotation = flare.x * Math.PI * 0.25;
		flare.rotation += ( flare.wantedRotation - flare.rotation ) * 0.25;

	}

};

THREE.LensFlare.prototype.copy = function ( source ) {

	THREE.Object3D.prototype.copy.call( this, source );

	this.positionScreen.copy( source.positionScreen );
	this.customUpdateCallback = source.customUpdateCallback;

	for ( var i = 0, l = source.lensFlares.length; i < l; i ++ ) {

		this.lensFlares.push( source.lensFlares[ i ] );

	}

	return this;

};

// File:src/scenes/Scene.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Scene = function () {

	THREE.Object3D.call( this );

	this.type = 'Scene';

	this.fog = null;
	this.overrideMaterial = null;

	this.autoUpdate = true; // checked by the renderer

};

THREE.Scene.prototype = Object.create( THREE.Object3D.prototype );
THREE.Scene.prototype.constructor = THREE.Scene;

THREE.Scene.prototype.copy = function ( source ) {

	THREE.Object3D.prototype.copy.call( this, source );

	if ( source.fog !== null ) this.fog = source.fog.clone();
	if ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone();

	this.autoUpdate = source.autoUpdate;
	this.matrixAutoUpdate = source.matrixAutoUpdate;

	return this;

};

// File:src/scenes/Fog.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 */

THREE.Fog = function ( color, near, far ) {

	this.name = '';

	this.color = new THREE.Color( color );

	this.near = ( near !== undefined ) ? near : 1;
	this.far = ( far !== undefined ) ? far : 1000;

};

THREE.Fog.prototype.clone = function () {

	return new THREE.Fog( this.color.getHex(), this.near, this.far );

};

// File:src/scenes/FogExp2.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 */

THREE.FogExp2 = function ( color, density ) {

	this.name = '';

	this.color = new THREE.Color( color );
	this.density = ( density !== undefined ) ? density : 0.00025;

};

THREE.FogExp2.prototype.clone = function () {

	return new THREE.FogExp2( this.color.getHex(), this.density );

};

// File:src/renderers/shaders/ShaderChunk.js

THREE.ShaderChunk = {};

// File:src/renderers/shaders/ShaderChunk/alphamap_fragment.glsl

THREE.ShaderChunk[ 'alphamap_fragment' ] ="#ifdef USE_ALPHAMAP\n\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/alphamap_pars_fragment.glsl

THREE.ShaderChunk[ 'alphamap_pars_fragment' ] ="#ifdef USE_ALPHAMAP\n\n\tuniform sampler2D alphaMap;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/alphatest_fragment.glsl

THREE.ShaderChunk[ 'alphatest_fragment' ] ="#ifdef ALPHATEST\n\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/ambient_pars.glsl

THREE.ShaderChunk[ 'ambient_pars' ] ="uniform vec3 ambientLightColor;\n\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\n\treturn PI * ambientLightColor;\n\n}\n";

// File:src/renderers/shaders/ShaderChunk/aomap_fragment.glsl

THREE.ShaderChunk[ 'aomap_fragment' ] ="#ifdef USE_AOMAP\n\n\treflectedLight.indirectDiffuse *= ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/aomap_pars_fragment.glsl

THREE.ShaderChunk[ 'aomap_pars_fragment' ] ="#ifdef USE_AOMAP\n\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/begin_vertex.glsl

THREE.ShaderChunk[ 'begin_vertex' ] ="\nvec3 transformed = vec3( position );\n";

// File:src/renderers/shaders/ShaderChunk/beginnormal_vertex.glsl

THREE.ShaderChunk[ 'beginnormal_vertex' ] ="\nvec3 objectNormal = vec3( normal );\n";

// File:src/renderers/shaders/ShaderChunk/bsdfs.glsl

THREE.ShaderChunk[ 'bsdfs' ] ="float calcLightAttenuation( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\n\tif ( decayExponent > 0.0 ) {\n\n\t  return pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\n\t}\n\n\treturn 1.0;\n\n}\n\n\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\n\treturn RECIPROCAL_PI * diffuseColor;\n\n} // validated\n\n\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\n\t// Original approximation by Christophe Schlick '94\n\t//;float fresnel = pow( 1.0 - dotLH, 5.0 );\n\n\t// Optimized variant (presented by Epic at SIGGRAPH '13)\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n\n} // validated\n\n\n// Microfacet Models for Refraction through Rough Surfaces - equation (34)\n// http://graphicrants.blogspot.com/2013/08/specular-brdf-reference.html\n// alpha is \"roughness squared\" in Disney’s reparameterization\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\n\t// geometry term = G(l)⋅G(v) / 4(n⋅l)(n⋅v)\n\n\tfloat a2 = alpha * alpha;\n\n\tfloat gl = dotNL + pow( a2 + ( 1.0 - a2 ) * dotNL * dotNL, 0.5 );\n\n\tfloat gv = dotNV + pow( a2 + ( 1.0 - a2 ) * dotNV * dotNV, 0.5 );\n\n\treturn 1.0 / ( gl * gv );\n\n} // validated\n\n\n// Microfacet Models for Refraction through Rough Surfaces - equation (33)\n// http://graphicrants.blogspot.com/2013/08/specular-brdf-reference.html\n// alpha is \"roughness squared\" in Disney’s reparameterization\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\n\tfloat a2 = alpha * alpha;\n\n\tfloat denom = dotNH * dotNH * ( a2 - 1.0 ) + 1.0; // avoid alpha = 0 with dotNH = 1\n\n\treturn RECIPROCAL_PI * a2 / ( denom * denom );\n\n}\n\n\n// GGX Distribution, Schlick Fresnel, GGX-Smith Visibility\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\n\tfloat alpha = roughness * roughness; // UE4's roughness\n\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\n\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\n\tfloat G = G_GGX_Smith( alpha, dotNL, dotNV );\n\n\tfloat D = D_GGX( alpha, dotNH );\n\n\treturn F * ( G * D );\n\n} // validated\n\n\n// ref: https://www.unrealengine.com/blog/physically-based-shading-on-mobile - environmentBRDF for GGX on mobile\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\n\tvec4 r = roughness * c0 + c1;\n\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\n\tvec2 AB = vec2( -1.04, 1.04 ) * a004 + r.zw;\n\n\treturn specularColor * AB.x + AB.y;\n\n} // validated\n\n\nfloat G_BlinnPhong_Implicit( /* const in float dotNL, const in float dotNV */ ) {\n\n\t// geometry term is (n dot l)(n dot v) / 4(n dot l)(n dot v)\n\treturn 0.25;\n\n}\n\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n\n}\n\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\n\t//float dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\n\t//float dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\n\tfloat G = G_BlinnPhong_Implicit( /* dotNL, dotNV */ );\n\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\n\treturn F * ( G * D );\n\n} // validated\n\n// source: http://simonstechblog.blogspot.ca/2011/12/microfacet-brdf.html\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / square( ggxRoughness + 0.0001 ) - 2.0 );\n}";

// File:src/renderers/shaders/ShaderChunk/bumpmap_pars_fragment.glsl

THREE.ShaderChunk[ 'bumpmap_pars_fragment' ] ="#ifdef USE_BUMPMAP\n\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\n\t// Derivative maps - bump mapping unparametrized surfaces by Morten Mikkelsen\n\t// http://mmikkelsen3d.blogspot.sk/2011/07/derivative-maps.html\n\n\t// Evaluate the derivative of the height w.r.t. screen-space using forward differencing (listing 2)\n\n\tvec2 dHdxy_fwd() {\n\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\n\t\treturn vec2( dBx, dBy );\n\n\t}\n\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\n\n\t\tvec3 vSigmaX = dFdx( surf_pos );\n\t\tvec3 vSigmaY = dFdy( surf_pos );\n\t\tvec3 vN = surf_norm;\t\t// normalized\n\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\n\t\tfloat fDet = dot( vSigmaX, R1 );\n\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\n\t}\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/color_fragment.glsl

THREE.ShaderChunk[ 'color_fragment' ] ="#ifdef USE_COLOR\n\n\tdiffuseColor.rgb *= vColor;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/color_pars_fragment.glsl

THREE.ShaderChunk[ 'color_pars_fragment' ] ="#ifdef USE_COLOR\n\n\tvarying vec3 vColor;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/color_pars_vertex.glsl

THREE.ShaderChunk[ 'color_pars_vertex' ] ="#ifdef USE_COLOR\n\n\tvarying vec3 vColor;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/color_vertex.glsl

THREE.ShaderChunk[ 'color_vertex' ] ="#ifdef USE_COLOR\n\n\tvColor.xyz = color.xyz;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/common.glsl

THREE.ShaderChunk[ 'common' ] ="#define PI 3.14159\n#define PI2 6.28318\n#define RECIPROCAL_PI 0.31830988618\n#define RECIPROCAL_PI2 0.15915494\n#define LOG2 1.442695\n#define EPSILON 1e-6\n\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\n\nfloat square( const in float x ) { return x*x; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\n\n\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n};\n\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\n\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n};\n\n\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n}\n\n// http://en.wikibooks.org/wiki/GLSL_Programming/Applying_Matrix_Transformations\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n\n}\n\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\n\treturn - distance * planeNormal + point;\n\n}\n\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n\n}\n\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n\n}\n\nvec3 inputToLinear( in vec3 a ) {\n\n\t#ifdef GAMMA_INPUT\n\n\t\treturn pow( a, vec3( float( GAMMA_FACTOR ) ) );\n\n\t#else\n\n\t\treturn a;\n\n\t#endif\n\n}\n\nvec3 linearToOutput( in vec3 a ) {\n\n\t#ifdef GAMMA_OUTPUT\n\n\t\treturn pow( a, vec3( 1.0 / float( GAMMA_FACTOR ) ) );\n\n\t#else\n\n\t\treturn a;\n\n\t#endif\n\n}\n";

// File:src/renderers/shaders/ShaderChunk/defaultnormal_vertex.glsl

THREE.ShaderChunk[ 'defaultnormal_vertex' ] ="#ifdef FLIP_SIDED\n\n\tobjectNormal = -objectNormal;\n\n#endif\n\nvec3 transformedNormal = normalMatrix * objectNormal;\n";

// File:src/renderers/shaders/ShaderChunk/displacementmap_vertex.glsl

THREE.ShaderChunk[ 'displacementmap_vertex' ] ="#ifdef USE_DISPLACEMENTMAP\n\n\ttransformed += normal * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/displacementmap_pars_vertex.glsl

THREE.ShaderChunk[ 'displacementmap_pars_vertex' ] ="#ifdef USE_DISPLACEMENTMAP\n\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/emissivemap_fragment.glsl

THREE.ShaderChunk[ 'emissivemap_fragment' ] ="#ifdef USE_EMISSIVEMAP\n\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\n\temissiveColor.rgb = inputToLinear( emissiveColor.rgb );\n\n\ttotalEmissiveLight *= emissiveColor.rgb;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/emissivemap_pars_fragment.glsl

THREE.ShaderChunk[ 'emissivemap_pars_fragment' ] ="#ifdef USE_EMISSIVEMAP\n\n\tuniform sampler2D emissiveMap;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/envmap_fragment.glsl

THREE.ShaderChunk[ 'envmap_fragment' ] ="#ifdef USE_ENVMAP\n\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\n\t\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\n\n\t\t// Transforming Normal Vectors with the Inverse Transformation\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\n\t\t\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\n\n\t\t#else\n\n\t\t\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\n\n\t\t#endif\n\n\t#else\n\n\t\tvec3 reflectVec = vReflect;\n\n\t#endif\n\n\t#ifdef DOUBLE_SIDED\n\t\tfloat flipNormal = ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t#else\n\t\tfloat flipNormal = 1.0;\n\t#endif\n\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, flipNormal * vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\n\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\tvec2 sampleUV;\n\t\tsampleUV.y = saturate( flipNormal * reflectVec.y * 0.5 + 0.5 );\n\t\tsampleUV.x = atan( flipNormal * reflectVec.z, flipNormal * reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\tvec4 envColor = texture2D( envMap, sampleUV );\n\n\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\tvec3 reflectView = flipNormal * normalize((viewMatrix * vec4( reflectVec, 0.0 )).xyz + vec3(0.0,0.0,1.0));\n\t\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\n\t#endif\n\n\tenvColor.xyz = inputToLinear( envColor.xyz );\n\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\n\t#endif\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/envmap_pars_fragment.glsl

THREE.ShaderChunk[ 'envmap_pars_fragment' ] ="#if defined( USE_ENVMAP ) || defined( STANDARD )\n\tuniform float reflectivity;\n\tuniform float envMapIntenstiy;\n#endif\n\n#ifdef USE_ENVMAP\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\tuniform float flipEnvMap;\n\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( STANDARD )\n\n\t\tuniform float refractionRatio;\n\n\t#else\n\n\t\tvarying vec3 vReflect;\n\n\t#endif\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/envmap_pars_vertex.glsl

THREE.ShaderChunk[ 'envmap_pars_vertex' ] ="#if defined( USE_ENVMAP ) && ! defined( USE_BUMPMAP ) && ! defined( USE_NORMALMAP ) && ! defined( PHONG ) && ! defined( STANDARD )\n\n\tvarying vec3 vReflect;\n\n\tuniform float refractionRatio;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/envmap_vertex.glsl

THREE.ShaderChunk[ 'envmap_vertex' ] ="#if defined( USE_ENVMAP ) && ! defined( USE_BUMPMAP ) && ! defined( USE_NORMALMAP ) && ! defined( PHONG ) && ! defined( STANDARD )\n\n\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\n\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\n\t#ifdef ENVMAP_MODE_REFLECTION\n\n\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\n\t#else\n\n\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\n\t#endif\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/fog_fragment.glsl

THREE.ShaderChunk[ 'fog_fragment' ] ="#ifdef USE_FOG\n\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\n\t\tfloat depth = gl_FragDepthEXT / gl_FragCoord.w;\n\n\t#else\n\n\t\tfloat depth = gl_FragCoord.z / gl_FragCoord.w;\n\n\t#endif\n\n\t#ifdef FOG_EXP2\n\n\t\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * depth * depth * LOG2 ) );\n\n\t#else\n\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, depth );\n\n\t#endif\n\t\n\toutgoingLight = mix( outgoingLight, fogColor, fogFactor );\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/fog_pars_fragment.glsl

THREE.ShaderChunk[ 'fog_pars_fragment' ] ="#ifdef USE_FOG\n\n\tuniform vec3 fogColor;\n\n\t#ifdef FOG_EXP2\n\n\t\tuniform float fogDensity;\n\n\t#else\n\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/lights_pars.glsl

THREE.ShaderChunk[ 'lights_pars' ] ="#if NUM_DIR_LIGHTS > 0\n\n\tstruct DirectionalLight {\n\t  vec3 direction;\n\t  vec3 color;\n\t  int shadow;\n\t};\n\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\n\tIncidentLight getDirectionalDirectLight( const in DirectionalLight directionalLight, const in GeometricContext geometry ) {\n\n\t\tIncidentLight directLight;\n\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\n\t\treturn directLight;\n\n\t}\n\n#endif\n\n\n#if NUM_POINT_LIGHTS > 0\n\n\tstruct PointLight {\n\t  vec3 position;\n\t  vec3 color;\n\t  float distance;\n\t  float decay;\n\t  int shadow;\n\t};\n\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\n\tIncidentLight getPointDirectLight( const in PointLight pointLight, const in GeometricContext geometry ) {\n\n\t\tIncidentLight directLight;\n\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= calcLightAttenuation( length( lVector ), pointLight.distance, pointLight.decay );\n\n\t\treturn directLight;\n\n\t}\n\n#endif\n\n\n#if NUM_SPOT_LIGHTS > 0\n\n\tstruct SpotLight {\n\t  vec3 position;\n\t  vec3 direction;\n\t  vec3 color;\n\t  float distance;\n\t  float decay;\n\t  float angleCos;\n\t  float exponent;\n\t  int shadow;\n\t};\n\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\n\tIncidentLight getSpotDirectLight( const in SpotLight spotLight, const in GeometricContext geometry ) {\n\n\t\tIncidentLight directLight;\n\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\n\t\tfloat spotEffect = dot( directLight.direction, spotLight.direction );\n\n\t\tif ( spotEffect > spotLight.angleCos ) {\n\n\t\t\tfloat spotEffect = dot( spotLight.direction, directLight.direction );\n\t\t\tspotEffect = saturate( pow( saturate( spotEffect ), spotLight.exponent ) );\n\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= ( spotEffect * calcLightAttenuation( length( lVector ), spotLight.distance, spotLight.decay ) );\n\n\t\t} else {\n\n\t\t\tdirectLight.color = vec3( 0.0 );\n\n\t\t}\n\n\t\treturn directLight;\n\n\t}\n\n#endif\n\n\n#if NUM_HEMI_LIGHTS > 0\n\n\tstruct HemisphereLight {\n\t  vec3 direction;\n\t  vec3 skyColor;\n\t  vec3 groundColor;\n\t};\n\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\n\t\treturn PI * mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\n\t}\n\n#endif\n\n\n#if defined( USE_ENVMAP ) && defined( STANDARD )\n\n\tvec3 getLightProbeIndirectIrradiance( /*const in SpecularLightProbe specularLightProbe,*/ const in GeometricContext geometry, const in int maxMIPLevel ) {\n\n\t\t#ifdef DOUBLE_SIDED\n\n\t\t\tfloat flipNormal = ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\n\t\t#else\n\n\t\t\tfloat flipNormal = 1.0;\n\n\t\t#endif\n\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\n\t\t\tvec3 queryVec = flipNormal * vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\n\t\t\t// TODO: replace with properly filtered cubemaps and access the irradiance LOD level, be it the last LOD level\n\t\t\t// of a specular cubemap, or just the default level of a specially created irradiance cubemap.\n\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\n\t\t\t#else\n\n\t\t\t\t// force the bias high to get the last LOD level as it is the most blurred.\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\n\t\t\t#endif\n\n\t\t#else\n\n\t\t\tvec3 envMapColor = vec3( 0.0 );\n\n\t\t#endif\n\n\t\tenvMapColor.rgb = inputToLinear( envMapColor.rgb );\n\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\n\t}\n\n\t// taken from here: http://casual-effects.blogspot.ca/2011/08/plausible-environment-lighting-in-two.html\n\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\n\t\t//float envMapWidth = pow( 2.0, maxMIPLevelScalar );\n\t\t//float desiredMIPLevel = log2( envMapWidth * sqrt( 3.0 ) ) - 0.5 * log2( square( blinnShininessExponent ) + 1.0 );\n\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar - 0.79248 - 0.5 * log2( square( blinnShininessExponent ) + 1.0 );\n\n\t\t// clamp to allowable LOD ranges.\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\n\t}\n\n\tvec3 getLightProbeIndirectRadiance( /*const in SpecularLightProbe specularLightProbe,*/ const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\n\t\t\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\n\n\t\t#else\n\n\t\t\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\n\n\t\t#endif\n\n\t\t#ifdef DOUBLE_SIDED\n\n\t\t\tfloat flipNormal = ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\n\t\t#else\n\n\t\t\tfloat flipNormal = 1.0;\n\n\t\t#endif\n\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\n\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\n\t\t\tvec3 queryReflectVec = flipNormal * vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\n\t\t\t#else\n\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\n\t\t\t#endif\n\n\t\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\n\t\t\tvec2 sampleUV;\n\t\t\tsampleUV.y = saturate( flipNormal * reflectVec.y * 0.5 + 0.5 );\n\t\t\tsampleUV.x = atan( flipNormal * reflectVec.z, flipNormal * reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\n\n\t\t\t#else\n\n\t\t\t\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\n\n\t\t\t#endif\n\n\t\t#elif defined( ENVMAP_TYPE_SPHERE )\n\n\t\t\tvec3 reflectView = flipNormal * normalize((viewMatrix * vec4( reflectVec, 0.0 )).xyz + vec3(0.0,0.0,1.0));\n\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\n\t\t\t#else\n\n\t\t\t\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\n\t\t\t#endif\n\n\t\t#endif\n\n\t\tenvMapColor.rgb = inputToLinear( envMapColor.rgb );\n\n\t\treturn envMapColor.rgb * envMapIntensity;\n\n\t}\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/lightmap_pars_fragment.glsl

THREE.ShaderChunk[ 'lightmap_pars_fragment' ] ="#ifdef USE_LIGHTMAP\n\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/lights_lambert_vertex.glsl

THREE.ShaderChunk[ 'lights_lambert_vertex' ] ="vec3 diffuse = vec3( 1.0 );\n\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = normalize( -mvPosition.xyz );\n\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\n\nvLightFront = vec3( 0.0 );\n\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n#endif\n\n#if NUM_POINT_LIGHTS > 0\n\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\n\t\tIncidentLight directLight = getPointDirectLight( pointLights[ i ], geometry );\n\n\t\tfloat dotNL = dot( geometry.normal, directLight.direction );\n\t\tvec3 directLightColor_Diffuse = PI * directLight.color;\n\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\n\t\t#ifdef DOUBLE_SIDED\n\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\n\t\t#endif\n\n\t}\n\n#endif\n\n#if NUM_SPOT_LIGHTS > 0\n\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\n\t\tIncidentLight directLight = getSpotDirectLight( spotLights[ i ], geometry );\n\n\t\tfloat dotNL = dot( geometry.normal, directLight.direction );\n\t\tvec3 directLightColor_Diffuse = PI * directLight.color;\n\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\n\t\t#ifdef DOUBLE_SIDED\n\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\n\t\t#endif\n\t}\n\n#endif\n\n#if NUM_DIR_LIGHTS > 0\n\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\n\t\tIncidentLight directLight = getDirectionalDirectLight( directionalLights[ i ], geometry );\n\n\t\tfloat dotNL = dot( geometry.normal, directLight.direction );\n\t\tvec3 directLightColor_Diffuse = PI * directLight.color;\n\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\n\t\t#ifdef DOUBLE_SIDED\n\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\n\t\t#endif\n\n\t}\n\n#endif\n\n\t{\n\n\n\t\t#if NUM_HEMI_LIGHTS > 0\n\n\t\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\n\t\t\t\tvLightFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\n\t\t\t\t#ifdef DOUBLE_SIDED\n\n\t\t\t\t\tvLightBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\n\t\t\t\t#endif\n\n\t\t\t}\n\n\t\t#endif\n\n\t}\n";

// File:src/renderers/shaders/ShaderChunk/lights_phong_fragment.glsl

THREE.ShaderChunk[ 'lights_phong_fragment' ] ="BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;\n";

// File:src/renderers/shaders/ShaderChunk/lights_phong_pars_fragment.glsl

THREE.ShaderChunk[ 'lights_phong_pars_fragment' ] ="#ifdef USE_ENVMAP\n\n\tvarying vec3 vWorldPosition;\n\n#endif\n\nvarying vec3 vViewPosition;\n\n#ifndef FLAT_SHADED\n\n\tvarying vec3 vNormal;\n\n#endif\n\n\nstruct BlinnPhongMaterial {\n\n\tvec3\tdiffuseColor;\n\tvec3\tspecularColor;\n\tfloat\tspecularShininess;\n\tfloat\tspecularStrength;\n\n};\n\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\n\tvec3 irradiance = dotNL * PI * directLight.color; // punctual light\n\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n\n}\n\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\n}\n\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n\n#define Material_LightProbeLOD( material )\t(0)\n";

// File:src/renderers/shaders/ShaderChunk/lights_phong_pars_vertex.glsl

THREE.ShaderChunk[ 'lights_phong_pars_vertex' ] ="#ifdef USE_ENVMAP\n\n\tvarying vec3 vWorldPosition;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/lights_phong_vertex.glsl

THREE.ShaderChunk[ 'lights_phong_vertex' ] ="#ifdef USE_ENVMAP\n\n\tvWorldPosition = worldPosition.xyz;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/lights_standard_fragment.glsl

THREE.ShaderChunk[ 'lights_standard_fragment' ] ="StandardMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\nmaterial.specularColor = mix( vec3( 0.04 ), diffuseColor.rgb, metalnessFactor );\n";

// File:src/renderers/shaders/ShaderChunk/lights_standard_pars_fragment.glsl

THREE.ShaderChunk[ 'lights_standard_pars_fragment' ] ="struct StandardMaterial {\n\n\tvec3\tdiffuseColor;\n\tfloat\tspecularRoughness;\n\tvec3\tspecularColor;\n\n};\n\nvoid RE_Direct_Standard( const in IncidentLight directLight, const in GeometricContext geometry, const in StandardMaterial material, inout ReflectedLight reflectedLight ) {\n\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\n\tvec3 irradiance = dotNL * PI * directLight.color; // punctual light\n\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\n\n}\n\nvoid RE_IndirectDiffuse_Standard( const in vec3 irradiance, const in GeometricContext geometry, const in StandardMaterial material, inout ReflectedLight reflectedLight ) {\n\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\n}\n\nvoid RE_IndirectSpecular_Standard( const in vec3 radiance, const in GeometricContext geometry, const in StandardMaterial material, inout ReflectedLight reflectedLight ) {\n\n\treflectedLight.indirectSpecular += radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\n\n}\n\n#define RE_Direct\t\t\t\tRE_Direct_Standard\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Standard\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Standard\n\n#define Material_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.specularRoughness )\n";

// File:src/renderers/shaders/ShaderChunk/lights_template.glsl

THREE.ShaderChunk[ 'lights_template' ] ="//\n// This is a template that can be used to light a material, it uses pluggable RenderEquations (RE)\n//   for specific lighting scenarios.\n//\n// Instructions for use:\n//  - Ensure that both RE_Direct, RE_IndirectDiffuse and RE_IndirectSpecular are defined\n//  - If you have defined an RE_IndirectSpecular, you need to also provide a Material_LightProbeLOD. <---- ???\n//  - Create a material parameter that is to be passed as the third parameter to your lighting functions.\n//\n// TODO:\n//  - Add area light support.\n//  - Add sphere light support.\n//  - Add diffuse light probe (irradiance cubemap) support.\n//\n\nGeometricContext geometry;\n\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = normalize( vViewPosition );\n\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\n\t\tPointLight pointLight = pointLights[ i ];\n\n\t\tIncidentLight directLight = getPointDirectLight( pointLight, geometry );\n\n\t\t#ifdef USE_SHADOWMAP\n\t\tif ( pointLight.shadow > - 1 ) {\n\t\t\tfor ( int j = 0; j < NUM_SHADOWS; j ++ ) {\n\t\t\t\tif ( j == pointLight.shadow ) {\n\t\t\t\t\tdirectLight.color *= shadows[ j ];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\t#endif\n\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\n\t}\n\n#endif\n\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\n\t\tSpotLight spotLight = spotLights[ i ];\n\n\t\tIncidentLight directLight = getSpotDirectLight( spotLight, geometry );\n\n\t\t#ifdef USE_SHADOWMAP\n\t\tif ( spotLight.shadow > - 1 ) {\n\t\t\tfor ( int j = 0; j < NUM_SHADOWS; j ++ ) {\n\t\t\t\tif ( j == spotLight.shadow ) {\n\t\t\t\t\tdirectLight.color *= shadows[ j ];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\t#endif\n\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\n\t}\n\n#endif\n\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\n\t\tDirectionalLight directionalLight = directionalLights[ i ];\n\n\t\tIncidentLight directLight = getDirectionalDirectLight( directionalLight, geometry );\n\n\t\t#ifdef USE_SHADOWMAP\n\t\tif ( directionalLight.shadow > - 1 ) {\n\t\t\tfor ( int j = 0; j < NUM_SHADOWS; j ++ ) {\n\t\t\t\tif ( j == directionalLight.shadow ) {\n\t\t\t\t\tdirectLight.color *= shadows[ j ];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\t#endif\n\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\n\t}\n\n#endif\n\n#if defined( RE_IndirectDiffuse )\n\n\t{\n\n\t\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\n\t\t#ifdef USE_LIGHTMAP\n\n\t\t\tirradiance += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity; // factor of PI should not be present; included here to prevent breakage\n\n\t\t#endif\n\n\t\t#if ( NUM_HEMI_LIGHTS > 0 )\n\n\t\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\n\t\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\n\t\t\t}\n\n\t\t#endif\n\n\t\t// #if defined( USE_ENVMAP ) && defined( STANDARD )\n\n\t\t\t// TODO, replace 8 with the real maxMIPLevel\n\t\t\t// irradiance += getLightProbeIndirectIrradiance( /*lightProbe,*/ geometry, 8 ); // comment out until seams are fixed\n\n\t\t// #endif\n\n\t\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n\n\t}\n\n#endif\n\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\n\t{\n\n\t\t// TODO, replace 8 with the real maxMIPLevel\n\t\tvec3 radiance = getLightProbeIndirectRadiance( /*specularLightProbe,*/ geometry, Material_BlinnShininessExponent( material ), 8 );\n\n\t\tRE_IndirectSpecular( radiance, geometry, material, reflectedLight );\n\n\t}\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/linear_to_gamma_fragment.glsl

THREE.ShaderChunk[ 'linear_to_gamma_fragment' ] ="\n\toutgoingLight = linearToOutput( outgoingLight );\n";

// File:src/renderers/shaders/ShaderChunk/logdepthbuf_fragment.glsl

THREE.ShaderChunk[ 'logdepthbuf_fragment' ] ="#if defined(USE_LOGDEPTHBUF) && defined(USE_LOGDEPTHBUF_EXT)\n\n\tgl_FragDepthEXT = log2(vFragDepth) * logDepthBufFC * 0.5;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/logdepthbuf_pars_fragment.glsl

THREE.ShaderChunk[ 'logdepthbuf_pars_fragment' ] ="#ifdef USE_LOGDEPTHBUF\n\n\tuniform float logDepthBufFC;\n\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\n\t\tvarying float vFragDepth;\n\n\t#endif\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/logdepthbuf_pars_vertex.glsl

THREE.ShaderChunk[ 'logdepthbuf_pars_vertex' ] ="#ifdef USE_LOGDEPTHBUF\n\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\n\t\tvarying float vFragDepth;\n\n\t#endif\n\n\tuniform float logDepthBufFC;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/logdepthbuf_vertex.glsl

THREE.ShaderChunk[ 'logdepthbuf_vertex' ] ="#ifdef USE_LOGDEPTHBUF\n\n\tgl_Position.z = log2(max( EPSILON, gl_Position.w + 1.0 )) * logDepthBufFC;\n\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\n\t#else\n\n\t\tgl_Position.z = (gl_Position.z - 1.0) * gl_Position.w;\n\n\t#endif\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/map_fragment.glsl

THREE.ShaderChunk[ 'map_fragment' ] ="#ifdef USE_MAP\n\n\tvec4 texelColor = texture2D( map, vUv );\n\n\ttexelColor.xyz = inputToLinear( texelColor.xyz );\n\n\tdiffuseColor *= texelColor;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/map_pars_fragment.glsl

THREE.ShaderChunk[ 'map_pars_fragment' ] ="#ifdef USE_MAP\n\n\tuniform sampler2D map;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/map_particle_fragment.glsl

THREE.ShaderChunk[ 'map_particle_fragment' ] ="#ifdef USE_MAP\n\n\tdiffuseColor *= texture2D( map, vec2( gl_PointCoord.x, 1.0 - gl_PointCoord.y ) * offsetRepeat.zw + offsetRepeat.xy );\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/map_particle_pars_fragment.glsl

THREE.ShaderChunk[ 'map_particle_pars_fragment' ] ="#ifdef USE_MAP\n\n\tuniform vec4 offsetRepeat;\n\tuniform sampler2D map;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/metalnessmap_fragment.glsl

THREE.ShaderChunk[ 'metalnessmap_fragment' ] ="float metalnessFactor = metalness;\n\n#ifdef USE_METALNESSMAP\n\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.r;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/metalnessmap_pars_fragment.glsl

THREE.ShaderChunk[ 'metalnessmap_pars_fragment' ] ="#ifdef USE_METALNESSMAP\n\n\tuniform sampler2D metalnessMap;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/morphnormal_vertex.glsl

THREE.ShaderChunk[ 'morphnormal_vertex' ] ="#ifdef USE_MORPHNORMALS\n\n\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\n\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\n\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\n\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/morphtarget_pars_vertex.glsl

THREE.ShaderChunk[ 'morphtarget_pars_vertex' ] ="#ifdef USE_MORPHTARGETS\n\n\t#ifndef USE_MORPHNORMALS\n\n\tuniform float morphTargetInfluences[ 8 ];\n\n\t#else\n\n\tuniform float morphTargetInfluences[ 4 ];\n\n\t#endif\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/morphtarget_vertex.glsl

THREE.ShaderChunk[ 'morphtarget_vertex' ] ="#ifdef USE_MORPHTARGETS\n\n\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\n\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\n\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\n\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\n\n\t#ifndef USE_MORPHNORMALS\n\n\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\n\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\n\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\n\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\n\n\t#endif\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/normal_fragment.glsl

THREE.ShaderChunk[ 'normal_fragment' ] ="#ifdef FLAT_SHADED\n\n\tvec3 fdx = dFdx( vViewPosition );\n\tvec3 fdy = dFdy( vViewPosition );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n\n#else\n\n\tvec3 normal = normalize( vNormal );\n\n\t#ifdef DOUBLE_SIDED\n\n\t\tnormal = normal * ( -1.0 + 2.0 * float( gl_FrontFacing ) );\n\n\t#endif\n\n#endif\n\n#ifdef USE_NORMALMAP\n\n\tnormal = perturbNormal2Arb( -vViewPosition, normal );\n\n#elif defined( USE_BUMPMAP )\n\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/normalmap_pars_fragment.glsl

THREE.ShaderChunk[ 'normalmap_pars_fragment' ] ="#ifdef USE_NORMALMAP\n\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n\n\t// Per-Pixel Tangent Space Normal Mapping\n\t// http://hacksoflife.blogspot.ch/2009/11/per-pixel-tangent-space-normal-mapping.html\n\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\n\n\t\tvec3 q0 = dFdx( eye_pos.xyz );\n\t\tvec3 q1 = dFdy( eye_pos.xyz );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\n\t\tvec3 S = normalize( q0 * st1.t - q1 * st0.t );\n\t\tvec3 T = normalize( -q0 * st1.s + q1 * st0.s );\n\t\tvec3 N = normalize( surf_norm );\n\n\t\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\tmapN.xy = normalScale * mapN.xy;\n\t\tmat3 tsn = mat3( S, T, N );\n\t\treturn normalize( tsn * mapN );\n\n\t}\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/project_vertex.glsl

THREE.ShaderChunk[ 'project_vertex' ] ="#ifdef USE_SKINNING\n\n\tvec4 mvPosition = modelViewMatrix * skinned;\n\n#else\n\n\tvec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\n\n#endif\n\ngl_Position = projectionMatrix * mvPosition;\n";

// File:src/renderers/shaders/ShaderChunk/roughnessmap_fragment.glsl

THREE.ShaderChunk[ 'roughnessmap_fragment' ] ="float roughnessFactor = roughness;\n\n#ifdef USE_ROUGHNESSMAP\n\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.r;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/roughnessmap_pars_fragment.glsl

THREE.ShaderChunk[ 'roughnessmap_pars_fragment' ] ="#ifdef USE_ROUGHNESSMAP\n\n\tuniform sampler2D roughnessMap;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/shadowmap_fragment.glsl

THREE.ShaderChunk[ 'shadowmap_fragment' ] ="vec3 shadowMask = vec3( 1.0 );\n\n#ifdef USE_SHADOWMAP\n\n\tfloat shadows[ NUM_SHADOWS ];\n\n\tfor ( int i = 0; i < NUM_SHADOWS; i ++ ) {\n\n\t\tfloat texelSizeY =  1.0 / shadowMapSize[ i ].y;\n\n\t\tfloat shadow = 0.0;\n\n#ifdef POINT_LIGHT_SHADOWS\n\n\t\t// to save on uniform space, we use the sign of @shadowDarkness[ i ] to determine\n\t\t// whether or not this light is a point light ( shadowDarkness[ i ] < 0 == point light)\n\t\tbool isPointLight = shadowDarkness[ i ] < 0.0;\n\n\t\tif ( isPointLight ) {\n\n\t\t\t// get the real shadow darkness\n\t\t\tfloat realShadowDarkness = abs( shadowDarkness[ i ] );\n\n\t\t\t// for point lights, the uniform @vShadowCoord is re-purposed to hold\n\t\t\t// the distance from the light to the world-space position of the fragment.\n\t\t\tvec3 lightToPosition = vShadowCoord[ i ].xyz;\n\n\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\n\n\t\t\t// bd3D = base direction 3D\n\t\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t\t// dp = distance from light to fragment position\n\t\t\tfloat dp = length( lightToPosition );\n\n\t\t\t// base measurement\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D, texelSizeY ) ), shadowBias[ i ], shadow );\n\n\t\t\t// Dr = disk radius\n\n\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tconst float Dr = 1.25;\n\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tconst float Dr = 2.25;\n\t#endif\n\n\t\t\t// os = offset scale\n\t\t\tfloat os = Dr *  2.0 * texelSizeY;\n\n\t\t\tconst vec3 Gsd = vec3( - 1, 0, 1 );\n\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.zzz * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.zxz * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.xxz * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.xzz * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.zzx * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.zxx * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.xxx * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.xzx * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.zzy * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.zxy * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.xxy * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.xzy * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.zyz * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.xyz * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.zyx * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.xyx * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.yzz * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.yxz * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.yxx * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D + Gsd.yzx * os, texelSizeY ) ), shadowBias[ i ], shadow );\n\n\t\t\tshadow *= realShadowDarkness * ( 1.0 / 21.0 );\n\n\t#else // no percentage-closer filtering:\n\n\t\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t\tfloat dp = length( lightToPosition );\n\n\t\t\tadjustShadowValue1K( dp, texture2D( shadowMap[ i ], cubeToUV( bd3D, texelSizeY ) ), shadowBias[ i ], shadow );\n\n\t\t\tshadow *= realShadowDarkness;\n\n\t#endif\n\n\t\t} else {\n\n#endif // POINT_LIGHT_SHADOWS\n\n\t\t\tfloat texelSizeX =  1.0 / shadowMapSize[ i ].x;\n\n\t\t\tvec3 shadowCoord = vShadowCoord[ i ].xyz / vShadowCoord[ i ].w;\n\n\t\t\t// if ( something && something ) breaks ATI OpenGL shader compiler\n\t\t\t// if ( all( something, something ) ) using this instead\n\n\t\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\t\tbool inFrustum = all( inFrustumVec );\n\n\t\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\n\t\t\tbool frustumTest = all( frustumTestVec );\n\n\t\t\tif ( frustumTest ) {\n\n\t#if defined( SHADOWMAP_TYPE_PCF )\n\n\t\t\t\t// Percentage-close filtering\n\t\t\t\t// (9 pixel kernel)\n\t\t\t\t// http://fabiensanglard.net/shadowmappingPCF/\n\n\t\t\t\t/*\n\t\t\t\t\t\t// nested loops breaks shader compiler / validator on some ATI cards when using OpenGL\n\t\t\t\t\t\t// must enroll loop manually\n\t\t\t\t\tfor ( float y = -1.25; y <= 1.25; y += 1.25 )\n\t\t\t\t\t\tfor ( float x = -1.25; x <= 1.25; x += 1.25 ) {\n\t\t\t\t\t\t\tvec4 rgbaDepth = texture2D( shadowMap[ i ], vec2( x * xPixelOffset, y * yPixelOffset ) + shadowCoord.xy );\n\t\t\t\t\t\t\t\t\t// doesn't seem to produce any noticeable visual difference compared to simple texture2D lookup\n\t\t\t\t\t\t\t\t\t//vec4 rgbaDepth = texture2DProj( shadowMap[ i ], vec4( vShadowCoord[ i ].w * ( vec2( x * xPixelOffset, y * yPixelOffset ) + shadowCoord.xy ), 0.05, vShadowCoord[ i ].w ) );\n\t\t\t\t\t\t\tfloat fDepth = unpackDepth( rgbaDepth );\n\t\t\t\t\t\t\tif ( fDepth < shadowCoord.z )\n\t\t\t\t\t\t\t\tshadow += 1.0;\n\t\t\t\t\t}\n\t\t\t\t\tshadow /= 9.0;\n\t\t\t\t*/\n\n\t\t\t\tshadowCoord.z += shadowBias[ i ];\n\n\t\t\t\tconst float ShadowDelta = 1.0 / 9.0;\n\n\t\t\t\tfloat xPixelOffset = texelSizeX;\n\t\t\t\tfloat yPixelOffset = texelSizeY;\n\n\t\t\t\tfloat dx0 = - 1.25 * xPixelOffset;\n\t\t\t\tfloat dy0 = - 1.25 * yPixelOffset;\n\t\t\t\tfloat dx1 = 1.25 * xPixelOffset;\n\t\t\t\tfloat dy1 = 1.25 * yPixelOffset;\n\n\t\t\t\tfloat fDepth = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( dx0, dy0 ) ) );\n\t\t\t\tif ( fDepth < shadowCoord.z ) shadow += ShadowDelta;\n\n\t\t\t\tfDepth = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( 0.0, dy0 ) ) );\n\t\t\t\tif ( fDepth < shadowCoord.z ) shadow += ShadowDelta;\n\n\t\t\t\tfDepth = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( dx1, dy0 ) ) );\n\t\t\t\tif ( fDepth < shadowCoord.z ) shadow += ShadowDelta;\n\n\t\t\t\tfDepth = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( dx0, 0.0 ) ) );\n\t\t\t\tif ( fDepth < shadowCoord.z ) shadow += ShadowDelta;\n\n\t\t\t\tfDepth = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy ) );\n\t\t\t\tif ( fDepth < shadowCoord.z ) shadow += ShadowDelta;\n\n\t\t\t\tfDepth = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( dx1, 0.0 ) ) );\n\t\t\t\tif ( fDepth < shadowCoord.z ) shadow += ShadowDelta;\n\n\t\t\t\tfDepth = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( dx0, dy1 ) ) );\n\t\t\t\tif ( fDepth < shadowCoord.z ) shadow += ShadowDelta;\n\n\t\t\t\tfDepth = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( 0.0, dy1 ) ) );\n\t\t\t\tif ( fDepth < shadowCoord.z ) shadow += ShadowDelta;\n\n\t\t\t\tfDepth = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( dx1, dy1 ) ) );\n\t\t\t\tif ( fDepth < shadowCoord.z ) shadow += ShadowDelta;\n\n\t\t\t\tshadow *= shadowDarkness[ i ];\n\n\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\n\t\t\t\t// Percentage-close filtering\n\t\t\t\t// (9 pixel kernel)\n\t\t\t\t// http://fabiensanglard.net/shadowmappingPCF/\n\n\t\t\t\tshadowCoord.z += shadowBias[ i ];\n\n\t\t\t\tfloat xPixelOffset = texelSizeX;\n\t\t\t\tfloat yPixelOffset = texelSizeY;\n\n\t\t\t\tfloat dx0 = - 1.0 * xPixelOffset;\n\t\t\t\tfloat dy0 = - 1.0 * yPixelOffset;\n\t\t\t\tfloat dx1 = 1.0 * xPixelOffset;\n\t\t\t\tfloat dy1 = 1.0 * yPixelOffset;\n\n\t\t\t\tmat3 shadowKernel;\n\t\t\t\tmat3 depthKernel;\n\n\t\t\t\tdepthKernel[ 0 ][ 0 ] = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( dx0, dy0 ) ) );\n\t\t\t\tdepthKernel[ 0 ][ 1 ] = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( dx0, 0.0 ) ) );\n\t\t\t\tdepthKernel[ 0 ][ 2 ] = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( dx0, dy1 ) ) );\n\t\t\t\tdepthKernel[ 1 ][ 0 ] = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( 0.0, dy0 ) ) );\n\t\t\t\tdepthKernel[ 1 ][ 1 ] = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy ) );\n\t\t\t\tdepthKernel[ 1 ][ 2 ] = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( 0.0, dy1 ) ) );\n\t\t\t\tdepthKernel[ 2 ][ 0 ] = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( dx1, dy0 ) ) );\n\t\t\t\tdepthKernel[ 2 ][ 1 ] = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( dx1, 0.0 ) ) );\n\t\t\t\tdepthKernel[ 2 ][ 2 ] = unpackDepth( texture2D( shadowMap[ i ], shadowCoord.xy + vec2( dx1, dy1 ) ) );\n\n\t\t\t\tvec3 shadowZ = vec3( shadowCoord.z );\n\t\t\t\tshadowKernel[ 0 ] = vec3( lessThan( depthKernel[ 0 ], shadowZ ) );\n\t\t\t\tshadowKernel[ 0 ] *= vec3( 0.25 );\n\n\t\t\t\tshadowKernel[ 1 ] = vec3( lessThan( depthKernel[ 1 ], shadowZ ) );\n\t\t\t\tshadowKernel[ 1 ] *= vec3( 0.25 );\n\n\t\t\t\tshadowKernel[ 2 ] = vec3( lessThan( depthKernel[ 2 ], shadowZ ) );\n\t\t\t\tshadowKernel[ 2 ] *= vec3( 0.25 );\n\n\t\t\t\tvec2 fractionalCoord = 1.0 - fract( shadowCoord.xy * shadowMapSize[ i ].xy );\n\n\t\t\t\tshadowKernel[ 0 ] = mix( shadowKernel[ 1 ], shadowKernel[ 0 ], fractionalCoord.x );\n\t\t\t\tshadowKernel[ 1 ] = mix( shadowKernel[ 2 ], shadowKernel[ 1 ], fractionalCoord.x );\n\n\t\t\t\tvec4 shadowValues;\n\t\t\t\tshadowValues.x = mix( shadowKernel[ 0 ][ 1 ], shadowKernel[ 0 ][ 0 ], fractionalCoord.y );\n\t\t\t\tshadowValues.y = mix( shadowKernel[ 0 ][ 2 ], shadowKernel[ 0 ][ 1 ], fractionalCoord.y );\n\t\t\t\tshadowValues.z = mix( shadowKernel[ 1 ][ 1 ], shadowKernel[ 1 ][ 0 ], fractionalCoord.y );\n\t\t\t\tshadowValues.w = mix( shadowKernel[ 1 ][ 2 ], shadowKernel[ 1 ][ 1 ], fractionalCoord.y );\n\n\t\t\t\tshadow = dot( shadowValues, vec4( 1.0 ) ) * shadowDarkness[ i ];\n\n\t#else // no percentage-closer filtering:\n\n\t\t\t\tshadowCoord.z += shadowBias[ i ];\n\n\t\t\t\tvec4 rgbaDepth = texture2D( shadowMap[ i ], shadowCoord.xy );\n\t\t\t\tfloat fDepth = unpackDepth( rgbaDepth );\n\n\t\t\t\tif ( fDepth < shadowCoord.z )\n\t\t\t\t\tshadow = shadowDarkness[ i ];\n\n\t#endif\n\n\t\t\t}\n\n#ifdef SHADOWMAP_DEBUG\n\n\t\t\tif ( inFrustum ) {\n\n\t\t\t\tif ( i == 0 ) {\n\n\t\t\t\t\toutgoingLight *= vec3( 1.0, 0.5, 0.0 );\n\n\t\t\t\t} else if ( i == 1 ) {\n\n\t\t\t\t\toutgoingLight *= vec3( 0.0, 1.0, 0.8 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\toutgoingLight *= vec3( 0.0, 0.5, 1.0 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n#endif\n\n#ifdef POINT_LIGHT_SHADOWS\n\n\t\t}\n\n#endif\n\n\t\tshadowMask = shadowMask * vec3( 1.0 - shadow );\n\n\t\tshadows[ i ] = 1.0 - shadow;\n\n\t}\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/shadowmap_pars_fragment.glsl

THREE.ShaderChunk[ 'shadowmap_pars_fragment' ] ="#ifdef USE_SHADOWMAP\n\n\tuniform sampler2D shadowMap[ NUM_SHADOWS ];\n\tuniform vec2 shadowMapSize[ NUM_SHADOWS ];\n\n\tuniform float shadowDarkness[ NUM_SHADOWS ];\n\tuniform float shadowBias[ NUM_SHADOWS ];\n\n\tvarying vec4 vShadowCoord[ NUM_SHADOWS ];\n\n\tfloat unpackDepth( const in vec4 rgba_depth ) {\n\n\t\tconst vec4 bit_shift = vec4( 1.0 / ( 256.0 * 256.0 * 256.0 ), 1.0 / ( 256.0 * 256.0 ), 1.0 / 256.0, 1.0 );\n\t\tfloat depth = dot( rgba_depth, bit_shift );\n\t\treturn depth;\n\n\t}\n\n\t#ifdef POINT_LIGHT_SHADOWS\n\n\t\t// adjustShadowValue1K() upacks the depth value stored in @textureData, adds @bias to it, and then\n\t\t// comapres the result with @testDepth. If @testDepth is larger than or equal to that result, then\n\t\t// @shadowValue is incremented by 1.0.\n\n\t\tvoid adjustShadowValue1K( const float testDepth, const vec4 textureData, const float bias, inout float shadowValue ) {\n\n\t\t\tconst vec4 bitSh = vec4( 1.0 / ( 256.0 * 256.0 * 256.0 ), 1.0 / ( 256.0 * 256.0 ), 1.0 / 256.0, 1.0 );\n\t\t\tif ( testDepth >= dot( textureData, bitSh ) * 1000.0 + bias )\n\t\t\t\tshadowValue += 1.0;\n\n\t\t}\n\n\t\t// cubeToUV() maps a 3D direction vector suitable for cube texture mapping to a 2D\n\t\t// vector suitable for 2D texture mapping. This code uses the following layout for the\n\t\t// 2D texture:\n\t\t//\n\t\t// xzXZ\n\t\t//  y Y\n\t\t//\n\t\t// Y - Positive y direction\n\t\t// y - Negative y direction\n\t\t// X - Positive x direction\n\t\t// x - Negative x direction\n\t\t// Z - Positive z direction\n\t\t// z - Negative z direction\n\t\t//\n\t\t// Source and test bed:\n\t\t// https://gist.github.com/tschw/da10c43c467ce8afd0c4\n\n\t\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\n\t\t\t// Number of texels to avoid at the edge of each square\n\n\t\t\tvec3 absV = abs( v );\n\n\t\t\t// Intersect unit cube\n\n\t\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\t\tabsV *= scaleToCube;\n\n\t\t\t// Apply scale to avoid seams\n\n\t\t\t// two texels less per square (one texel will do for NEAREST)\n\t\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\n\t\t\t// Unwrap\n\n\t\t\t// space: -1 ... 1 range for each square\n\t\t\t//\n\t\t\t// #X##\t\tdim    := ( 4 , 2 )\n\t\t\t//  # #\t\tcenter := ( 1 , 1 )\n\n\t\t\tvec2 planar = v.xy;\n\n\t\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\t\tfloat almostOne = 1.0 - almostATexel;\n\n\t\t\tif ( absV.z >= almostOne ) {\n\n\t\t\t\tif ( v.z > 0.0 )\n\t\t\t\t\tplanar.x = 4.0 - v.x;\n\n\t\t\t} else if ( absV.x >= almostOne ) {\n\n\t\t\t\tfloat signX = sign( v.x );\n\t\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\n\t\t\t} else if ( absV.y >= almostOne ) {\n\n\t\t\t\tfloat signY = sign( v.y );\n\t\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\t\tplanar.y = v.z * signY - 2.0;\n\n\t\t\t}\n\n\t\t\t// Transform to UV space\n\n\t\t\t// scale := 0.5 / dim\n\t\t\t// translate := ( center + 0.5 ) / dim\n\t\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\n\t\t}\n\n\t#endif\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/shadowmap_pars_vertex.glsl

THREE.ShaderChunk[ 'shadowmap_pars_vertex' ] ="#ifdef USE_SHADOWMAP\n\n\tuniform mat4 shadowMatrix[ NUM_SHADOWS ];\n\tvarying vec4 vShadowCoord[ NUM_SHADOWS ];\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/shadowmap_vertex.glsl

THREE.ShaderChunk[ 'shadowmap_vertex' ] ="#ifdef USE_SHADOWMAP\n\n\tfor ( int i = 0; i < NUM_SHADOWS; i ++ ) {\n\n\t\t\tvShadowCoord[ i ] = shadowMatrix[ i ] * worldPosition;\n\n\t}\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/skinbase_vertex.glsl

THREE.ShaderChunk[ 'skinbase_vertex' ] ="#ifdef USE_SKINNING\n\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/skinning_pars_vertex.glsl

THREE.ShaderChunk[ 'skinning_pars_vertex' ] ="#ifdef USE_SKINNING\n\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\n\t#ifdef BONE_TEXTURE\n\n\t\tuniform sampler2D boneTexture;\n\t\tuniform int boneTextureWidth;\n\t\tuniform int boneTextureHeight;\n\n\t\tmat4 getBoneMatrix( const in float i ) {\n\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureWidth ) );\n\t\t\tfloat y = floor( j / float( boneTextureWidth ) );\n\n\t\t\tfloat dx = 1.0 / float( boneTextureWidth );\n\t\t\tfloat dy = 1.0 / float( boneTextureHeight );\n\n\t\t\ty = dy * ( y + 0.5 );\n\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\n\t\t\treturn bone;\n\n\t\t}\n\n\t#else\n\n\t\tuniform mat4 boneGlobalMatrices[ MAX_BONES ];\n\n\t\tmat4 getBoneMatrix( const in float i ) {\n\n\t\t\tmat4 bone = boneGlobalMatrices[ int(i) ];\n\t\t\treturn bone;\n\n\t\t}\n\n\t#endif\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/skinning_vertex.glsl

THREE.ShaderChunk[ 'skinning_vertex' ] ="#ifdef USE_SKINNING\n\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\tskinned  = bindMatrixInverse * skinned;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/skinnormal_vertex.glsl

THREE.ShaderChunk[ 'skinnormal_vertex' ] ="#ifdef USE_SKINNING\n\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix  = bindMatrixInverse * skinMatrix * bindMatrix;\n\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/specularmap_fragment.glsl

THREE.ShaderChunk[ 'specularmap_fragment' ] ="float specularStrength;\n\n#ifdef USE_SPECULARMAP\n\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n\n#else\n\n\tspecularStrength = 1.0;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/specularmap_pars_fragment.glsl

THREE.ShaderChunk[ 'specularmap_pars_fragment' ] ="#ifdef USE_SPECULARMAP\n\n\tuniform sampler2D specularMap;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/uv2_pars_fragment.glsl

THREE.ShaderChunk[ 'uv2_pars_fragment' ] ="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\n\tvarying vec2 vUv2;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/uv2_pars_vertex.glsl

THREE.ShaderChunk[ 'uv2_pars_vertex' ] ="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/uv2_vertex.glsl

THREE.ShaderChunk[ 'uv2_vertex' ] ="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\n\tvUv2 = uv2;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/uv_pars_fragment.glsl

THREE.ShaderChunk[ 'uv_pars_fragment' ] ="#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\n\tvarying vec2 vUv;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/uv_pars_vertex.glsl

THREE.ShaderChunk[ 'uv_pars_vertex' ] ="#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\n\tvarying vec2 vUv;\n\tuniform vec4 offsetRepeat;\n\n#endif\n";

// File:src/renderers/shaders/ShaderChunk/uv_vertex.glsl

THREE.ShaderChunk[ 'uv_vertex' ] ="#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\n\tvUv = uv * offsetRepeat.zw + offsetRepeat.xy;\n\n#endif";

// File:src/renderers/shaders/ShaderChunk/worldpos_vertex.glsl

THREE.ShaderChunk[ 'worldpos_vertex' ] ="#if defined( USE_ENVMAP ) || defined( PHONG ) || defined( STANDARD ) || defined( LAMBERT ) || defined ( USE_SHADOWMAP )\n\n\t#ifdef USE_SKINNING\n\n\t\tvec4 worldPosition = modelMatrix * skinned;\n\n\t#else\n\n\t\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\n\n\t#endif\n\n#endif\n";

// File:src/renderers/shaders/UniformsUtils.js

/**
 * Uniform Utilities
 */

THREE.UniformsUtils = {

	merge: function ( uniforms ) {

		var merged = {};

		for ( var u = 0; u < uniforms.length; u ++ ) {

			var tmp = this.clone( uniforms[ u ] );

			for ( var p in tmp ) {

				merged[ p ] = tmp[ p ];

			}

		}

		return merged;

	},

	clone: function ( uniforms_src ) {

		var uniforms_dst = {};

		for ( var u in uniforms_src ) {

			uniforms_dst[ u ] = {};

			for ( var p in uniforms_src[ u ] ) {

				var parameter_src = uniforms_src[ u ][ p ];

				if ( parameter_src instanceof THREE.Color ||
					 parameter_src instanceof THREE.Vector2 ||
					 parameter_src instanceof THREE.Vector3 ||
					 parameter_src instanceof THREE.Vector4 ||
					 parameter_src instanceof THREE.Matrix3 ||
					 parameter_src instanceof THREE.Matrix4 ||
					 parameter_src instanceof THREE.Texture ) {

					uniforms_dst[ u ][ p ] = parameter_src.clone();

				} else if ( Array.isArray( parameter_src ) ) {

					uniforms_dst[ u ][ p ] = parameter_src.slice();

				} else {

					uniforms_dst[ u ][ p ] = parameter_src;

				}

			}

		}

		return uniforms_dst;

	}

};

// File:src/renderers/shaders/UniformsLib.js

/**
 * Uniforms library for shared webgl shaders
 */

THREE.UniformsLib = {

	common: {

		"diffuse" : { type: "c", value: new THREE.Color( 0xeeeeee ) },
		"opacity" : { type: "f", value: 1.0 },

		"map" : { type: "t", value: null },
		"offsetRepeat" : { type: "v4", value: new THREE.Vector4( 0, 0, 1, 1 ) },

		"specularMap" : { type: "t", value: null },
		"alphaMap" : { type: "t", value: null },

		"envMap" : { type: "t", value: null },
		"flipEnvMap" : { type: "f", value: - 1 },
		"reflectivity" : { type: "f", value: 1.0 },
		"refractionRatio" : { type: "f", value: 0.98 }

	},

	aomap: {

		"aoMap" : { type: "t", value: null },
		"aoMapIntensity" : { type: "f", value: 1 },

	},

	lightmap: {

		"lightMap" : { type: "t", value: null },
		"lightMapIntensity" : { type: "f", value: 1 },

	},

	emissivemap: {

		"emissiveMap" : { type: "t", value: null },

	},

	bumpmap: {

		"bumpMap" : { type: "t", value: null },
		"bumpScale" : { type: "f", value: 1 }

	},

	normalmap: {

		"normalMap" : { type: "t", value: null },
		"normalScale" : { type: "v2", value: new THREE.Vector2( 1, 1 ) }

	},

	displacementmap: {

		"displacementMap" : { type: "t", value: null },
		"displacementScale" : { type: "f", value: 1 },
		"displacementBias" : { type: "f", value: 0 }

	},

	roughnessmap: {

		"roughnessMap" : { type: "t", value: null }

	},

	metalnessmap: {

		"metalnessMap" : { type: "t", value: null }

	},

	fog: {

		"fogDensity" : { type: "f", value: 0.00025 },
		"fogNear" : { type: "f", value: 1 },
		"fogFar" : { type: "f", value: 2000 },
		"fogColor" : { type: "c", value: new THREE.Color( 0xffffff ) }

	},

	ambient: {

		"ambientLightColor" : { type: "fv", value: [] }

	},

	lights: {

		"directionalLights" : { type: "sa", value: [], properties: {
			"direction": { type: "v3" },
			"color": { type: "c" },
			"shadow": { type: "i" }
		} },

		"hemisphereLights" : { type: "sa", value: [], properties: {
			"direction": { type: "v3" },
			"skyColor": { type: "c" },
			"groundColor": { type: "c" }
		} },

		"pointLights" : { type: "sa", value: [], properties: {
			"color": { type: "c" },
			"position": { type: "v3" },
			"decay": { type: "f" },
			"distance": { type: "f" },
			"shadow": { type: "i" }
		} },

		"spotLights" : { type: "sa", value: [], properties: {
			"color": { type: "c" },
			"position": { type: "v3" },
			"direction": { type: "v3" },
			"distance": { type: "f" },
			"angleCos": { type: "f" },
			"exponent": { type: "f" },
			"decay": { type: "f" },
			"shadow": { type: "i" }
		} }

	},

	points: {

		"diffuse" : { type: "c", value: new THREE.Color( 0xeeeeee ) },
		"opacity" : { type: "f", value: 1.0 },
		"size" : { type: "f", value: 1.0 },
		"scale" : { type: "f", value: 1.0 },
		"map" : { type: "t", value: null },
		"offsetRepeat" : { type: "v4", value: new THREE.Vector4( 0, 0, 1, 1 ) }

	},

	shadowmap: {

		"shadowMap": { type: "tv", value: [] },
		"shadowMapSize": { type: "v2v", value: [] },

		"shadowBias" : { type: "fv1", value: [] },
		"shadowDarkness": { type: "fv1", value: [] },

		"shadowMatrix" : { type: "m4v", value: [] }

	}

};

// File:src/renderers/shaders/ShaderLib.js

/**
 * Webgl Shader Library for three.js
 *
 * @author alteredq / http://alteredqualia.com/
 * @author mrdoob / http://mrdoob.com/
 * @author mikael emtinger / http://gomo.se/
 */


THREE.ShaderLib = {

	'basic': {

		uniforms: THREE.UniformsUtils.merge( [

			THREE.UniformsLib[ "common" ],
			THREE.UniformsLib[ "aomap" ],
			THREE.UniformsLib[ "fog" ],
			THREE.UniformsLib[ "shadowmap" ]

		] ),

		vertexShader: [

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "uv_pars_vertex" ],
			THREE.ShaderChunk[ "uv2_pars_vertex" ],
			THREE.ShaderChunk[ "envmap_pars_vertex" ],
			THREE.ShaderChunk[ "color_pars_vertex" ],
			THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
			THREE.ShaderChunk[ "skinning_pars_vertex" ],
			THREE.ShaderChunk[ "shadowmap_pars_vertex" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],

			"void main() {",

				THREE.ShaderChunk[ "uv_vertex" ],
				THREE.ShaderChunk[ "uv2_vertex" ],
				THREE.ShaderChunk[ "color_vertex" ],
				THREE.ShaderChunk[ "skinbase_vertex" ],

			"	#ifdef USE_ENVMAP",

				THREE.ShaderChunk[ "beginnormal_vertex" ],
				THREE.ShaderChunk[ "morphnormal_vertex" ],
				THREE.ShaderChunk[ "skinnormal_vertex" ],
				THREE.ShaderChunk[ "defaultnormal_vertex" ],

			"	#endif",

				THREE.ShaderChunk[ "begin_vertex" ],
				THREE.ShaderChunk[ "morphtarget_vertex" ],
				THREE.ShaderChunk[ "skinning_vertex" ],
				THREE.ShaderChunk[ "project_vertex" ],
				THREE.ShaderChunk[ "logdepthbuf_vertex" ],

				THREE.ShaderChunk[ "worldpos_vertex" ],
				THREE.ShaderChunk[ "envmap_vertex" ],
				THREE.ShaderChunk[ "shadowmap_vertex" ],

			"}"

		].join( "\n" ),

		fragmentShader: [

			"uniform vec3 diffuse;",
			"uniform float opacity;",

			"#ifndef FLAT_SHADED",

			"	varying vec3 vNormal;",

			"#endif",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "color_pars_fragment" ],
			THREE.ShaderChunk[ "uv_pars_fragment" ],
			THREE.ShaderChunk[ "uv2_pars_fragment" ],
			THREE.ShaderChunk[ "map_pars_fragment" ],
			THREE.ShaderChunk[ "alphamap_pars_fragment" ],
			THREE.ShaderChunk[ "aomap_pars_fragment" ],
			THREE.ShaderChunk[ "envmap_pars_fragment" ],
			THREE.ShaderChunk[ "fog_pars_fragment" ],
			THREE.ShaderChunk[ "shadowmap_pars_fragment" ],
			THREE.ShaderChunk[ "specularmap_pars_fragment" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],

			"void main() {",

			"	vec4 diffuseColor = vec4( diffuse, opacity );",

				THREE.ShaderChunk[ "logdepthbuf_fragment" ],
				THREE.ShaderChunk[ "map_fragment" ],
				THREE.ShaderChunk[ "color_fragment" ],
				THREE.ShaderChunk[ "alphamap_fragment" ],
				THREE.ShaderChunk[ "alphatest_fragment" ],
				THREE.ShaderChunk[ "specularmap_fragment" ],

			"	ReflectedLight reflectedLight;",
			"	reflectedLight.directDiffuse = vec3( 0.0 );",
			"	reflectedLight.directSpecular = vec3( 0.0 );",
			"	reflectedLight.indirectDiffuse = diffuseColor.rgb;",
			"	reflectedLight.indirectSpecular = vec3( 0.0 );",

				THREE.ShaderChunk[ "aomap_fragment" ],
				THREE.ShaderChunk[ "shadowmap_fragment" ],

				"reflectedLight.indirectDiffuse *= shadowMask;",

				"vec3 outgoingLight = reflectedLight.indirectDiffuse;",

				THREE.ShaderChunk[ "envmap_fragment" ],
				THREE.ShaderChunk[ "linear_to_gamma_fragment" ],
				THREE.ShaderChunk[ "fog_fragment" ],

			"	gl_FragColor = vec4( outgoingLight, diffuseColor.a );",

			"}"

		].join( "\n" )

	},

	'lambert': {

		uniforms: THREE.UniformsUtils.merge( [

			THREE.UniformsLib[ "common" ],
			THREE.UniformsLib[ "aomap" ],
			THREE.UniformsLib[ "lightmap" ],
			THREE.UniformsLib[ "emissivemap" ],
			THREE.UniformsLib[ "fog" ],
			THREE.UniformsLib[ "ambient" ],
			THREE.UniformsLib[ "lights" ],
			THREE.UniformsLib[ "shadowmap" ],

			{
				"emissive" : { type: "c", value: new THREE.Color( 0x000000 ) }
			}

		] ),

		vertexShader: [

			"#define LAMBERT",

			"varying vec3 vLightFront;",

			"#ifdef DOUBLE_SIDED",

			"	varying vec3 vLightBack;",

			"#endif",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "uv_pars_vertex" ],
			THREE.ShaderChunk[ "uv2_pars_vertex" ],
			THREE.ShaderChunk[ "envmap_pars_vertex" ],
			THREE.ShaderChunk[ "bsdfs" ],
			THREE.ShaderChunk[ "lights_pars" ],
			THREE.ShaderChunk[ "color_pars_vertex" ],
			THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
			THREE.ShaderChunk[ "skinning_pars_vertex" ],
			THREE.ShaderChunk[ "shadowmap_pars_vertex" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],

			"void main() {",

				THREE.ShaderChunk[ "uv_vertex" ],
				THREE.ShaderChunk[ "uv2_vertex" ],
				THREE.ShaderChunk[ "color_vertex" ],

				THREE.ShaderChunk[ "beginnormal_vertex" ],
				THREE.ShaderChunk[ "morphnormal_vertex" ],
				THREE.ShaderChunk[ "skinbase_vertex" ],
				THREE.ShaderChunk[ "skinnormal_vertex" ],
				THREE.ShaderChunk[ "defaultnormal_vertex" ],

				THREE.ShaderChunk[ "begin_vertex" ],
				THREE.ShaderChunk[ "morphtarget_vertex" ],
				THREE.ShaderChunk[ "skinning_vertex" ],
				THREE.ShaderChunk[ "project_vertex" ],
				THREE.ShaderChunk[ "logdepthbuf_vertex" ],

				THREE.ShaderChunk[ "worldpos_vertex" ],
				THREE.ShaderChunk[ "envmap_vertex" ],
				THREE.ShaderChunk[ "lights_lambert_vertex" ],
				THREE.ShaderChunk[ "shadowmap_vertex" ],

			"}"

		].join( "\n" ),

		fragmentShader: [

			"uniform vec3 diffuse;",
			"uniform vec3 emissive;",
			"uniform float opacity;",

			"varying vec3 vLightFront;",

			"#ifdef DOUBLE_SIDED",

			"	varying vec3 vLightBack;",

			"#endif",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "color_pars_fragment" ],
			THREE.ShaderChunk[ "uv_pars_fragment" ],
			THREE.ShaderChunk[ "uv2_pars_fragment" ],
			THREE.ShaderChunk[ "map_pars_fragment" ],
			THREE.ShaderChunk[ "alphamap_pars_fragment" ],
			THREE.ShaderChunk[ "aomap_pars_fragment" ],
			THREE.ShaderChunk[ "lightmap_pars_fragment" ],
			THREE.ShaderChunk[ "emissivemap_pars_fragment" ],
			THREE.ShaderChunk[ "envmap_pars_fragment" ],
			THREE.ShaderChunk[ "ambient_pars" ],
			THREE.ShaderChunk[ "fog_pars_fragment" ],
			THREE.ShaderChunk[ "shadowmap_pars_fragment" ],
			THREE.ShaderChunk[ "specularmap_pars_fragment" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],

			"void main() {",

			"	vec3 outgoingLight = vec3( 0.0 );",
			"	vec4 diffuseColor = vec4( diffuse, opacity );",
			"	vec3 totalAmbientLight = getAmbientLightIrradiance( ambientLightColor );",
			"	vec3 totalEmissiveLight = emissive;",

				THREE.ShaderChunk[ "logdepthbuf_fragment" ],
				THREE.ShaderChunk[ "map_fragment" ],
				THREE.ShaderChunk[ "color_fragment" ],
				THREE.ShaderChunk[ "alphamap_fragment" ],
				THREE.ShaderChunk[ "alphatest_fragment" ],
				THREE.ShaderChunk[ "specularmap_fragment" ],
				THREE.ShaderChunk[ "emissivemap_fragment" ],
				THREE.ShaderChunk[ "shadowmap_fragment" ],

				// former lightmap_fragment.glsl
			"	#ifdef USE_LIGHTMAP",

			"		totalAmbientLight += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;", // factor of PI should not be present; included here to prevent breakage

			"	#endif",

				// former aomap_fragment.glsl
			"	#ifdef USE_AOMAP",

			"		totalAmbientLight *= ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;",

			"	#endif",

			"	#ifdef DOUBLE_SIDED",

			"		if ( gl_FrontFacing )",
			"			outgoingLight += RECIPROCAL_PI * diffuseColor.rgb * ( vLightFront * shadowMask + totalAmbientLight ) + totalEmissiveLight;",
			"		else",
			"			outgoingLight += RECIPROCAL_PI * diffuseColor.rgb * ( vLightBack * shadowMask + totalAmbientLight ) + totalEmissiveLight;",

			"	#else",

			"		outgoingLight += RECIPROCAL_PI * diffuseColor.rgb * ( vLightFront * shadowMask + totalAmbientLight ) + totalEmissiveLight;",

			"	#endif",

				THREE.ShaderChunk[ "envmap_fragment" ],

				THREE.ShaderChunk[ "linear_to_gamma_fragment" ],

				THREE.ShaderChunk[ "fog_fragment" ],

			"	gl_FragColor = vec4( outgoingLight, diffuseColor.a );",

			"}"

		].join( "\n" )

	},

	'phong': {

		uniforms: THREE.UniformsUtils.merge( [

			THREE.UniformsLib[ "common" ],
			THREE.UniformsLib[ "aomap" ],
			THREE.UniformsLib[ "lightmap" ],
			THREE.UniformsLib[ "emissivemap" ],
			THREE.UniformsLib[ "bumpmap" ],
			THREE.UniformsLib[ "normalmap" ],
			THREE.UniformsLib[ "displacementmap" ],
			THREE.UniformsLib[ "fog" ],
			THREE.UniformsLib[ "ambient" ],
			THREE.UniformsLib[ "lights" ],
			THREE.UniformsLib[ "shadowmap" ],

			{
				"emissive" : { type: "c", value: new THREE.Color( 0x000000 ) },
				"specular" : { type: "c", value: new THREE.Color( 0x111111 ) },
				"shininess": { type: "f", value: 30 }
			}

		] ),

		vertexShader: [

			"#define PHONG",

			"varying vec3 vViewPosition;",

			"#ifndef FLAT_SHADED",

			"	varying vec3 vNormal;",

			"#endif",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "uv_pars_vertex" ],
			THREE.ShaderChunk[ "uv2_pars_vertex" ],
			THREE.ShaderChunk[ "displacementmap_pars_vertex" ],
			THREE.ShaderChunk[ "envmap_pars_vertex" ],
			THREE.ShaderChunk[ "lights_phong_pars_vertex" ],
			THREE.ShaderChunk[ "color_pars_vertex" ],
			THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
			THREE.ShaderChunk[ "skinning_pars_vertex" ],
			THREE.ShaderChunk[ "shadowmap_pars_vertex" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],

			"void main() {",

				THREE.ShaderChunk[ "uv_vertex" ],
				THREE.ShaderChunk[ "uv2_vertex" ],
				THREE.ShaderChunk[ "color_vertex" ],

				THREE.ShaderChunk[ "beginnormal_vertex" ],
				THREE.ShaderChunk[ "morphnormal_vertex" ],
				THREE.ShaderChunk[ "skinbase_vertex" ],
				THREE.ShaderChunk[ "skinnormal_vertex" ],
				THREE.ShaderChunk[ "defaultnormal_vertex" ],

			"#ifndef FLAT_SHADED", // Normal computed with derivatives when FLAT_SHADED

			"	vNormal = normalize( transformedNormal );",

			"#endif",

				THREE.ShaderChunk[ "begin_vertex" ],
				THREE.ShaderChunk[ "displacementmap_vertex" ],
				THREE.ShaderChunk[ "morphtarget_vertex" ],
				THREE.ShaderChunk[ "skinning_vertex" ],
				THREE.ShaderChunk[ "project_vertex" ],
				THREE.ShaderChunk[ "logdepthbuf_vertex" ],

			"	vViewPosition = - mvPosition.xyz;",

				THREE.ShaderChunk[ "worldpos_vertex" ],
				THREE.ShaderChunk[ "envmap_vertex" ],
				THREE.ShaderChunk[ "lights_phong_vertex" ],
				THREE.ShaderChunk[ "shadowmap_vertex" ],

			"}"

		].join( "\n" ),

		fragmentShader: [

			"#define PHONG",

			"uniform vec3 diffuse;",
			"uniform vec3 emissive;",
			"uniform vec3 specular;",
			"uniform float shininess;",
			"uniform float opacity;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "color_pars_fragment" ],
			THREE.ShaderChunk[ "uv_pars_fragment" ],
			THREE.ShaderChunk[ "uv2_pars_fragment" ],
			THREE.ShaderChunk[ "map_pars_fragment" ],
			THREE.ShaderChunk[ "alphamap_pars_fragment" ],
			THREE.ShaderChunk[ "aomap_pars_fragment" ],
			THREE.ShaderChunk[ "lightmap_pars_fragment" ],
			THREE.ShaderChunk[ "emissivemap_pars_fragment" ],
			THREE.ShaderChunk[ "envmap_pars_fragment" ],
			THREE.ShaderChunk[ "fog_pars_fragment" ],
			THREE.ShaderChunk[ "bsdfs" ],
			THREE.ShaderChunk[ "ambient_pars" ],
			THREE.ShaderChunk[ "lights_pars" ],
			THREE.ShaderChunk[ "lights_phong_pars_fragment" ],
			THREE.ShaderChunk[ "shadowmap_pars_fragment" ],
			THREE.ShaderChunk[ "bumpmap_pars_fragment" ],
			THREE.ShaderChunk[ "normalmap_pars_fragment" ],
			THREE.ShaderChunk[ "specularmap_pars_fragment" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],

			"void main() {",

			"	vec4 diffuseColor = vec4( diffuse, opacity );",
			"	ReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );",
			"	vec3 totalEmissiveLight = emissive;",

				THREE.ShaderChunk[ "logdepthbuf_fragment" ],
				THREE.ShaderChunk[ "map_fragment" ],
				THREE.ShaderChunk[ "color_fragment" ],
				THREE.ShaderChunk[ "alphamap_fragment" ],
				THREE.ShaderChunk[ "alphatest_fragment" ],
				THREE.ShaderChunk[ "specularmap_fragment" ],
				THREE.ShaderChunk[ "normal_fragment" ],
				THREE.ShaderChunk[ "emissivemap_fragment" ],

				THREE.ShaderChunk[ "shadowmap_fragment" ],

				// accumulation
				THREE.ShaderChunk[ "lights_phong_fragment" ],
				THREE.ShaderChunk[ "lights_template" ],

				// modulation
				THREE.ShaderChunk[ "aomap_fragment" ],

				"vec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveLight;",

				THREE.ShaderChunk[ "envmap_fragment" ],
				THREE.ShaderChunk[ "linear_to_gamma_fragment" ],

				THREE.ShaderChunk[ "fog_fragment" ],

			"	gl_FragColor = vec4( outgoingLight, diffuseColor.a );",

			"}"

		].join( "\n" )

	},

	'standard': {

		uniforms: THREE.UniformsUtils.merge( [

			THREE.UniformsLib[ "common" ],
			THREE.UniformsLib[ "aomap" ],
			THREE.UniformsLib[ "lightmap" ],
			THREE.UniformsLib[ "emissivemap" ],
			THREE.UniformsLib[ "bumpmap" ],
			THREE.UniformsLib[ "normalmap" ],
			THREE.UniformsLib[ "displacementmap" ],
			THREE.UniformsLib[ "roughnessmap" ],
			THREE.UniformsLib[ "metalnessmap" ],
			THREE.UniformsLib[ "fog" ],
			THREE.UniformsLib[ "ambient" ],
			THREE.UniformsLib[ "lights" ],
			THREE.UniformsLib[ "shadowmap" ],

			{
				"emissive" : { type: "c", value: new THREE.Color( 0x000000 ) },
				"roughness": { type: "f", value: 0.5 },
				"metalness": { type: "f", value: 0 },
				"envMapIntensity" : { type: "f", value: 1 } // temporary
			}

		] ),

		vertexShader: [

			"#define STANDARD",

			"varying vec3 vViewPosition;",

			"#ifndef FLAT_SHADED",

			"	varying vec3 vNormal;",

			"#endif",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "uv_pars_vertex" ],
			THREE.ShaderChunk[ "uv2_pars_vertex" ],
			THREE.ShaderChunk[ "displacementmap_pars_vertex" ],
			THREE.ShaderChunk[ "envmap_pars_vertex" ],
			THREE.ShaderChunk[ "color_pars_vertex" ],
			THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
			THREE.ShaderChunk[ "skinning_pars_vertex" ],
			THREE.ShaderChunk[ "shadowmap_pars_vertex" ],
			THREE.ShaderChunk[ "specularmap_pars_fragment" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],

			"void main() {", // STANDARD

				THREE.ShaderChunk[ "uv_vertex" ],
				THREE.ShaderChunk[ "uv2_vertex" ],
				THREE.ShaderChunk[ "color_vertex" ],

				THREE.ShaderChunk[ "beginnormal_vertex" ],
				THREE.ShaderChunk[ "morphnormal_vertex" ],
				THREE.ShaderChunk[ "skinbase_vertex" ],
				THREE.ShaderChunk[ "skinnormal_vertex" ],
				THREE.ShaderChunk[ "defaultnormal_vertex" ],

			"#ifndef FLAT_SHADED", // Normal computed with derivatives when FLAT_SHADED

			"	vNormal = normalize( transformedNormal );",

			"#endif",

				THREE.ShaderChunk[ "begin_vertex" ],
				THREE.ShaderChunk[ "displacementmap_vertex" ],
				THREE.ShaderChunk[ "morphtarget_vertex" ],
				THREE.ShaderChunk[ "skinning_vertex" ],
				THREE.ShaderChunk[ "project_vertex" ],
				THREE.ShaderChunk[ "logdepthbuf_vertex" ],

			"	vViewPosition = - mvPosition.xyz;",

				THREE.ShaderChunk[ "worldpos_vertex" ],
				THREE.ShaderChunk[ "envmap_vertex" ],
				THREE.ShaderChunk[ "shadowmap_vertex" ],

			"}"

		].join( "\n" ),

		fragmentShader: [

			"#define STANDARD",

			"uniform vec3 diffuse;",
			"uniform vec3 emissive;",
			"uniform float roughness;",
			"uniform float metalness;",
			"uniform float opacity;",

			"uniform float envMapIntensity;", // temporary

			"varying vec3 vViewPosition;",

			"#ifndef FLAT_SHADED",

			"	varying vec3 vNormal;",

			"#endif",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "color_pars_fragment" ],
			THREE.ShaderChunk[ "uv_pars_fragment" ],
			THREE.ShaderChunk[ "uv2_pars_fragment" ],
			THREE.ShaderChunk[ "map_pars_fragment" ],
			THREE.ShaderChunk[ "alphamap_pars_fragment" ],
			THREE.ShaderChunk[ "aomap_pars_fragment" ],
			THREE.ShaderChunk[ "lightmap_pars_fragment" ],
			THREE.ShaderChunk[ "emissivemap_pars_fragment" ],
			THREE.ShaderChunk[ "envmap_pars_fragment" ],
			THREE.ShaderChunk[ "fog_pars_fragment" ],
			THREE.ShaderChunk[ "bsdfs" ],
			THREE.ShaderChunk[ "ambient_pars" ],
			THREE.ShaderChunk[ "lights_pars" ],
			THREE.ShaderChunk[ "lights_standard_pars_fragment" ],
			THREE.ShaderChunk[ "shadowmap_pars_fragment" ],
			THREE.ShaderChunk[ "bumpmap_pars_fragment" ],
			THREE.ShaderChunk[ "normalmap_pars_fragment" ],
			THREE.ShaderChunk[ "roughnessmap_pars_fragment" ],
			THREE.ShaderChunk[ "metalnessmap_pars_fragment" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],

			"void main() {",

			"	vec4 diffuseColor = vec4( diffuse, opacity );",
			"	ReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );",
			"	vec3 totalEmissiveLight = emissive;",

				THREE.ShaderChunk[ "logdepthbuf_fragment" ],
				THREE.ShaderChunk[ "map_fragment" ],
				THREE.ShaderChunk[ "color_fragment" ],
				THREE.ShaderChunk[ "alphamap_fragment" ],
				THREE.ShaderChunk[ "alphatest_fragment" ],
				THREE.ShaderChunk[ "specularmap_fragment" ],
				THREE.ShaderChunk[ "roughnessmap_fragment" ],
				THREE.ShaderChunk[ "metalnessmap_fragment" ],
				THREE.ShaderChunk[ "normal_fragment" ],
				THREE.ShaderChunk[ "emissivemap_fragment" ],

				THREE.ShaderChunk[ "shadowmap_fragment" ],

				// accumulation
				THREE.ShaderChunk[ "lights_standard_fragment" ],
				THREE.ShaderChunk[ "lights_template" ],

				// modulation
				THREE.ShaderChunk[ "aomap_fragment" ],

				"vec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveLight;",

				THREE.ShaderChunk[ "linear_to_gamma_fragment" ],

				THREE.ShaderChunk[ "fog_fragment" ],

			"	gl_FragColor = vec4( outgoingLight, diffuseColor.a );",

			"}"

		].join( "\n" )

	},

	'points': {

		uniforms: THREE.UniformsUtils.merge( [

			THREE.UniformsLib[ "points" ],
			THREE.UniformsLib[ "fog" ],
			THREE.UniformsLib[ "shadowmap" ]

		] ),

		vertexShader: [

			"uniform float size;",
			"uniform float scale;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "color_pars_vertex" ],
			THREE.ShaderChunk[ "shadowmap_pars_vertex" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],

			"void main() {",

				THREE.ShaderChunk[ "color_vertex" ],
				THREE.ShaderChunk[ "begin_vertex" ],
				THREE.ShaderChunk[ "project_vertex" ],

			"	#ifdef USE_SIZEATTENUATION",
			"		gl_PointSize = size * ( scale / - mvPosition.z );",
			"	#else",
			"		gl_PointSize = size;",
			"	#endif",

				THREE.ShaderChunk[ "logdepthbuf_vertex" ],
				THREE.ShaderChunk[ "worldpos_vertex" ],
				THREE.ShaderChunk[ "shadowmap_vertex" ],

			"}"

		].join( "\n" ),

		fragmentShader: [

			"uniform vec3 diffuse;",
			"uniform float opacity;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "color_pars_fragment" ],
			THREE.ShaderChunk[ "map_particle_pars_fragment" ],
			THREE.ShaderChunk[ "fog_pars_fragment" ],
			THREE.ShaderChunk[ "shadowmap_pars_fragment" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],

			"void main() {",

			"	vec3 outgoingLight = vec3( 0.0 );",
			"	vec4 diffuseColor = vec4( diffuse, opacity );",

				THREE.ShaderChunk[ "logdepthbuf_fragment" ],
				THREE.ShaderChunk[ "map_particle_fragment" ],
				THREE.ShaderChunk[ "color_fragment" ],
				THREE.ShaderChunk[ "alphatest_fragment" ],
				THREE.ShaderChunk[ "shadowmap_fragment" ],

			"	outgoingLight = diffuseColor.rgb * shadowMask;",

				THREE.ShaderChunk[ "fog_fragment" ],

			"	gl_FragColor = vec4( outgoingLight, diffuseColor.a );",

			"}"

		].join( "\n" )

	},

	'dashed': {

		uniforms: THREE.UniformsUtils.merge( [

			THREE.UniformsLib[ "common" ],
			THREE.UniformsLib[ "fog" ],

			{
				"scale"    : { type: "f", value: 1 },
				"dashSize" : { type: "f", value: 1 },
				"totalSize": { type: "f", value: 2 }
			}

		] ),

		vertexShader: [

			"uniform float scale;",
			"attribute float lineDistance;",

			"varying float vLineDistance;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "color_pars_vertex" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],

			"void main() {",

				THREE.ShaderChunk[ "color_vertex" ],

			"	vLineDistance = scale * lineDistance;",

			"	vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );",
			"	gl_Position = projectionMatrix * mvPosition;",

				THREE.ShaderChunk[ "logdepthbuf_vertex" ],

			"}"

		].join( "\n" ),

		fragmentShader: [

			"uniform vec3 diffuse;",
			"uniform float opacity;",

			"uniform float dashSize;",
			"uniform float totalSize;",

			"varying float vLineDistance;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "color_pars_fragment" ],
			THREE.ShaderChunk[ "fog_pars_fragment" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],

			"void main() {",

			"	if ( mod( vLineDistance, totalSize ) > dashSize ) {",

			"		discard;",

			"	}",

			"	vec3 outgoingLight = vec3( 0.0 );",
			"	vec4 diffuseColor = vec4( diffuse, opacity );",

				THREE.ShaderChunk[ "logdepthbuf_fragment" ],
				THREE.ShaderChunk[ "color_fragment" ],

			"	outgoingLight = diffuseColor.rgb;", // simple shader

				THREE.ShaderChunk[ "fog_fragment" ],

			"	gl_FragColor = vec4( outgoingLight, diffuseColor.a );",

			"}"

		].join( "\n" )

	},

	'depth': {

		uniforms: {

			"mNear": { type: "f", value: 1.0 },
			"mFar" : { type: "f", value: 2000.0 },
			"opacity" : { type: "f", value: 1.0 }

		},

		vertexShader: [

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],

			"void main() {",

				THREE.ShaderChunk[ "begin_vertex" ],
				THREE.ShaderChunk[ "morphtarget_vertex" ],
				THREE.ShaderChunk[ "project_vertex" ],
				THREE.ShaderChunk[ "logdepthbuf_vertex" ],

			"}"

		].join( "\n" ),

		fragmentShader: [

			"uniform float mNear;",
			"uniform float mFar;",
			"uniform float opacity;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],

			"void main() {",

				THREE.ShaderChunk[ "logdepthbuf_fragment" ],

			"	#ifdef USE_LOGDEPTHBUF_EXT",

			"		float depth = gl_FragDepthEXT / gl_FragCoord.w;",

			"	#else",

			"		float depth = gl_FragCoord.z / gl_FragCoord.w;",

			"	#endif",

			"	float color = 1.0 - smoothstep( mNear, mFar, depth );",
			"	gl_FragColor = vec4( vec3( color ), opacity );",

			"}"

		].join( "\n" )

	},

	'normal': {

		uniforms: {

			"opacity" : { type: "f", value: 1.0 }

		},

		vertexShader: [

			"varying vec3 vNormal;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],

			"void main() {",

			"	vNormal = normalize( normalMatrix * normal );",

				THREE.ShaderChunk[ "begin_vertex" ],
				THREE.ShaderChunk[ "morphtarget_vertex" ],
				THREE.ShaderChunk[ "project_vertex" ],
				THREE.ShaderChunk[ "logdepthbuf_vertex" ],

			"}"

		].join( "\n" ),

		fragmentShader: [

			"uniform float opacity;",
			"varying vec3 vNormal;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],

			"void main() {",

			"	gl_FragColor = vec4( 0.5 * normalize( vNormal ) + 0.5, opacity );",

				THREE.ShaderChunk[ "logdepthbuf_fragment" ],

			"}"

		].join( "\n" )

	},

	/* -------------------------------------------------------------------------
	//	Cube map shader
	 ------------------------------------------------------------------------- */

	'cube': {

		uniforms: {
			"tCube": { type: "t", value: null },
			"tFlip": { type: "f", value: - 1 }
		},

		vertexShader: [

			"varying vec3 vWorldPosition;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],

			"void main() {",

			"	vWorldPosition = transformDirection( position, modelMatrix );",

			"	gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",

				THREE.ShaderChunk[ "logdepthbuf_vertex" ],

			"}"

		].join( "\n" ),

		fragmentShader: [

			"uniform samplerCube tCube;",
			"uniform float tFlip;",

			"varying vec3 vWorldPosition;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],

			"void main() {",

			"	gl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );",

				THREE.ShaderChunk[ "logdepthbuf_fragment" ],

			"}"

		].join( "\n" )

	},

	/* -------------------------------------------------------------------------
	//	Cube map shader
	 ------------------------------------------------------------------------- */

	'equirect': {

		uniforms: {
			"tEquirect": { type: "t", value: null },
			"tFlip": { type: "f", value: - 1 }
		},

		vertexShader: [

			"varying vec3 vWorldPosition;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],

			"void main() {",

			"	vWorldPosition = transformDirection( position, modelMatrix );",

			"	gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",

				THREE.ShaderChunk[ "logdepthbuf_vertex" ],

			"}"

		].join( "\n" ),

		fragmentShader: [

			"uniform sampler2D tEquirect;",
			"uniform float tFlip;",

			"varying vec3 vWorldPosition;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],

			"void main() {",

				// "	gl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );",
				"vec3 direction = normalize( vWorldPosition );",
				"vec2 sampleUV;",
				"sampleUV.y = saturate( tFlip * direction.y * -0.5 + 0.5 );",
				"sampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;",
				"gl_FragColor = texture2D( tEquirect, sampleUV );",

				THREE.ShaderChunk[ "logdepthbuf_fragment" ],

			"}"

		].join( "\n" )

	},

	/* Depth encoding into RGBA texture
	 *
	 * based on SpiderGL shadow map example
	 * http://spidergl.org/example.php?id=6
	 *
	 * originally from
	 * http://www.gamedev.net/topic/442138-packing-a-float-into-a-a8r8g8b8-texture-shader/page__whichpage__1%25EF%25BF%25BD
	 *
	 * see also
	 * http://aras-p.info/blog/2009/07/30/encoding-floats-to-rgba-the-final/
	 */

	'depthRGBA': {

		uniforms: {},

		vertexShader: [

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
			THREE.ShaderChunk[ "skinning_pars_vertex" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_vertex" ],

			"void main() {",

				THREE.ShaderChunk[ "skinbase_vertex" ],

				THREE.ShaderChunk[ "begin_vertex" ],
				THREE.ShaderChunk[ "morphtarget_vertex" ],
				THREE.ShaderChunk[ "skinning_vertex" ],
				THREE.ShaderChunk[ "project_vertex" ],
				THREE.ShaderChunk[ "logdepthbuf_vertex" ],

			"}"

		].join( "\n" ),

		fragmentShader: [

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "logdepthbuf_pars_fragment" ],

			"vec4 pack_depth( const in float depth ) {",

			"	const vec4 bit_shift = vec4( 256.0 * 256.0 * 256.0, 256.0 * 256.0, 256.0, 1.0 );",
			"	const vec4 bit_mask = vec4( 0.0, 1.0 / 256.0, 1.0 / 256.0, 1.0 / 256.0 );",
			"	vec4 res = mod( depth * bit_shift * vec4( 255 ), vec4( 256 ) ) / vec4( 255 );", // "	vec4 res = fract( depth * bit_shift );",
			"	res -= res.xxyz * bit_mask;",
			"	return res;",

			"}",

			"void main() {",

				THREE.ShaderChunk[ "logdepthbuf_fragment" ],

			"	#ifdef USE_LOGDEPTHBUF_EXT",

			"		gl_FragData[ 0 ] = pack_depth( gl_FragDepthEXT );",

			"	#else",

			"		gl_FragData[ 0 ] = pack_depth( gl_FragCoord.z );",

			"	#endif",

				//"gl_FragData[ 0 ] = pack_depth( gl_FragCoord.z / gl_FragCoord.w );",
				//"float z = ( ( gl_FragCoord.z / gl_FragCoord.w ) - 3.0 ) / ( 4000.0 - 3.0 );",
				//"gl_FragData[ 0 ] = pack_depth( z );",
				//"gl_FragData[ 0 ] = vec4( z, z, z, 1.0 );",

			"}"

		].join( "\n" )

	},


	'distanceRGBA': {

		uniforms: {

			"lightPos": { type: "v3", value: new THREE.Vector3( 0, 0, 0 ) }

		},

		vertexShader: [

			"varying vec4 vWorldPosition;",

			THREE.ShaderChunk[ "common" ],
			THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
			THREE.ShaderChunk[ "skinning_pars_vertex" ],

			"void main() {",

				THREE.ShaderChunk[ "skinbase_vertex" ],
				THREE.ShaderChunk[ "begin_vertex" ],
				THREE.ShaderChunk[ "morphtarget_vertex" ],
				THREE.ShaderChunk[ "skinning_vertex" ],
				THREE.ShaderChunk[ "project_vertex" ],
				THREE.ShaderChunk[ "worldpos_vertex" ],

				"vWorldPosition = worldPosition;",

			"}"

		].join( "\n" ),

		fragmentShader: [

			"uniform vec3 lightPos;",
			"varying vec4 vWorldPosition;",

			THREE.ShaderChunk[ "common" ],

			"vec4 pack1K ( float depth ) {",

			"   depth /= 1000.0;",
			"   const vec4 bitSh = vec4( 256.0 * 256.0 * 256.0, 256.0 * 256.0, 256.0, 1.0 );",
  			"	const vec4 bitMsk = vec4( 0.0, 1.0 / 256.0, 1.0 / 256.0, 1.0 / 256.0 );",
   			"	vec4 res = fract( depth * bitSh );",
   			"	res -= res.xxyz * bitMsk;",
   			"	return res; ",

			"}",

			"float unpack1K ( vec4 color ) {",

			"	const vec4 bitSh = vec4( 1.0 / ( 256.0 * 256.0 * 256.0 ), 1.0 / ( 256.0 * 256.0 ), 1.0 / 256.0, 1.0 );",
			"	return dot( color, bitSh ) * 1000.0;",

			"}",

			"void main () {",

			"	gl_FragColor = pack1K( length( vWorldPosition.xyz - lightPos.xyz ) );",

			"}"

		].join( "\n" )

	}

};

// File:src/renderers/WebGLRenderer.js

/**
 * @author supereggbert / http://www.paulbrunt.co.uk/
 * @author mrdoob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 * @author szimek / https://github.com/szimek/
 */

THREE.WebGLRenderer = function ( parameters ) {

	console.log( 'THREE.WebGLRenderer', THREE.REVISION );

	parameters = parameters || {};

	var _canvas = parameters.canvas !== undefined ? parameters.canvas : document.createElement( 'canvas' ),
	_context = parameters.context !== undefined ? parameters.context : null,

	_width = _canvas.width,
	_height = _canvas.height,

	pixelRatio = 1,

	_alpha = parameters.alpha !== undefined ? parameters.alpha : false,
	_depth = parameters.depth !== undefined ? parameters.depth : true,
	_stencil = parameters.stencil !== undefined ? parameters.stencil : true,
	_antialias = parameters.antialias !== undefined ? parameters.antialias : false,
	_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,
	_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false,

	_clearColor = new THREE.Color( 0x000000 ),
	_clearAlpha = 0;

	var lights = [];

	var opaqueObjects = [];
	var opaqueObjectsLastIndex = - 1;
	var transparentObjects = [];
	var transparentObjectsLastIndex = - 1;

	var morphInfluences = new Float32Array( 8 );


	var sprites = [];
	var lensFlares = [];

	// public properties

	this.domElement = _canvas;
	this.context = null;

	// clearing

	this.autoClear = true;
	this.autoClearColor = true;
	this.autoClearDepth = true;
	this.autoClearStencil = true;

	// scene graph

	this.sortObjects = true;

	// physically based shading

	this.gammaFactor = 2.0;	// for backwards compatibility
	this.gammaInput = false;
	this.gammaOutput = false;

	// morphs

	this.maxMorphTargets = 8;
	this.maxMorphNormals = 4;

	// flags

	this.autoScaleCubemaps = true;

	// internal properties

	var _this = this,

	// internal state cache

	_currentViewport = null,
	_currentProgram = null,
	_currentRenderTarget = null,
	_currentFramebuffer = null,
	_currentMaterialId = - 1,
	_currentGeometryProgram = '',
	_currentCamera = null,

	_usedTextureUnits = 0,

	_scissor = new THREE.Vector4( 0, 0, _canvas.width, _canvas.height ),
	_scissorTest = false,

	_viewport = new THREE.Vector4( 0, 0, _canvas.width, _canvas.height ),

	// frustum

	_frustum = new THREE.Frustum(),

	 // camera matrices cache

	_projScreenMatrix = new THREE.Matrix4(),

	_vector3 = new THREE.Vector3(),

	// light arrays cache

	_lights = {

		hash: '',

		ambient: [ 0, 0, 0 ],
		directional: [],
		point: [],
		spot: [],
		hemi: [],

		shadows: [],
		shadowsPointLight: 0

	},

	// info

	_infoMemory = {

		geometries: 0,
		textures: 0

	},

	_infoRender = {

		calls: 0,
		vertices: 0,
		faces: 0,
		points: 0

	};

	this.info = {

		render: _infoRender,
		memory: _infoMemory,
		programs: null

	};


	// initialize

	var _gl;

	try {

		var attributes = {
			alpha: _alpha,
			depth: _depth,
			stencil: _stencil,
			antialias: _antialias,
			premultipliedAlpha: _premultipliedAlpha,
			preserveDrawingBuffer: _preserveDrawingBuffer
		};

		_gl = _context || _canvas.getContext( 'webgl', attributes ) || _canvas.getContext( 'experimental-webgl', attributes );

		if ( _gl === null ) {

			if ( _canvas.getContext( 'webgl' ) !== null ) {

				throw 'Error creating WebGL context with your selected attributes.';

			} else {

				throw 'Error creating WebGL context.';

			}

		}

		_canvas.addEventListener( 'webglcontextlost', onContextLost, false );

	} catch ( error ) {

		console.error( 'THREE.WebGLRenderer: ' + error );

	}

	var extensions = new THREE.WebGLExtensions( _gl );

	extensions.get( 'OES_texture_float' );
	extensions.get( 'OES_texture_float_linear' );
	extensions.get( 'OES_texture_half_float' );
	extensions.get( 'OES_texture_half_float_linear' );
	extensions.get( 'OES_standard_derivatives' );
	extensions.get( 'ANGLE_instanced_arrays' );

	if ( extensions.get( 'OES_element_index_uint' ) ) {

		THREE.BufferGeometry.MaxIndex = 4294967296;

	}

	var capabilities = new THREE.WebGLCapabilities( _gl, extensions, parameters );

	var state = new THREE.WebGLState( _gl, extensions, paramThreeToGL );
	var properties = new THREE.WebGLProperties();
	var objects = new THREE.WebGLObjects( _gl, properties, this.info );
	var programCache = new THREE.WebGLPrograms( this, capabilities );
	var lightCache = new THREE.WebGLLights();

	this.info.programs = programCache.programs;

	var bufferRenderer = new THREE.WebGLBufferRenderer( _gl, extensions, _infoRender );
	var indexedBufferRenderer = new THREE.WebGLIndexedBufferRenderer( _gl, extensions, _infoRender );

	//

	function getTargetPixelRatio() {

		return _currentRenderTarget === null ? pixelRatio : 1;

	}

	function glClearColor( r, g, b, a ) {

		if ( _premultipliedAlpha === true ) {

			r *= a; g *= a; b *= a;

		}

		_gl.clearColor( r, g, b, a );

	}

	function setDefaultGLState() {

		state.init();

		state.scissor( _scissor );
		state.viewport( _viewport );

		glClearColor( _clearColor.r, _clearColor.g, _clearColor.b, _clearAlpha );

	}

	function resetGLState() {

		_currentProgram = null;
		_currentCamera = null;

		_currentGeometryProgram = '';
		_currentMaterialId = - 1;

		state.reset();

	}

	setDefaultGLState();

	this.context = _gl;
	this.capabilities = capabilities;
	this.extensions = extensions;
	this.properties = properties;
	this.state = state;

	// shadow map

	var shadowMap = new THREE.WebGLShadowMap( this, _lights, objects );

	this.shadowMap = shadowMap;


	// Plugins

	var spritePlugin = new THREE.SpritePlugin( this, sprites );
	var lensFlarePlugin = new THREE.LensFlarePlugin( this, lensFlares );

	// API

	this.getContext = function () {

		return _gl;

	};

	this.getContextAttributes = function () {

		return _gl.getContextAttributes();

	};

	this.forceContextLoss = function () {

		extensions.get( 'WEBGL_lose_context' ).loseContext();

	};

	this.getMaxAnisotropy = ( function () {

		var value;

		return function getMaxAnisotropy() {

			if ( value !== undefined ) return value;

			var extension = extensions.get( 'EXT_texture_filter_anisotropic' );

			if ( extension !== null ) {

				value = _gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );

			} else {

				value = 0;

			}

			return value;

		};

	} )();

	this.getPrecision = function () {

		return capabilities.precision;

	};

	this.getPixelRatio = function () {

		return pixelRatio;

	};

	this.setPixelRatio = function ( value ) {

		if ( value !== undefined ) pixelRatio = value;

	};

	this.getSize = function () {

		return {
			width: _width,
			height: _height
		};

	};

	this.setSize = function ( width, height, updateStyle ) {

		_width = width;
		_height = height;

		_canvas.width = width * pixelRatio;
		_canvas.height = height * pixelRatio;

		if ( updateStyle !== false ) {

			_canvas.style.width = width + 'px';
			_canvas.style.height = height + 'px';

		}

		this.setViewport( 0, 0, width, height );

	};

	this.setViewport = function ( x, y, width, height ) {

		_viewport.set( x, y, width, height ).multiplyScalar( pixelRatio );

		state.viewport( _viewport );

	};

	this.setScissor = function ( x, y, width, height ) {

		_scissor.set( x, y, width, height ).multiplyScalar( pixelRatio );

		state.scissor( _scissor );

	};

	this.setScissorTest = function ( boolean ) {

		_scissorTest = boolean;

		state.setScissorTest( boolean );

	};

	// Clearing

	this.getClearColor = function () {

		return _clearColor;

	};

	this.setClearColor = function ( color, alpha ) {

		_clearColor.set( color );

		_clearAlpha = alpha !== undefined ? alpha : 1;

		glClearColor( _clearColor.r, _clearColor.g, _clearColor.b, _clearAlpha );

	};

	this.getClearAlpha = function () {

		return _clearAlpha;

	};

	this.setClearAlpha = function ( alpha ) {

		_clearAlpha = alpha;

		glClearColor( _clearColor.r, _clearColor.g, _clearColor.b, _clearAlpha );

	};

	this.clear = function ( color, depth, stencil ) {

		var bits = 0;

		if ( color === undefined || color ) bits |= _gl.COLOR_BUFFER_BIT;
		if ( depth === undefined || depth ) bits |= _gl.DEPTH_BUFFER_BIT;
		if ( stencil === undefined || stencil ) bits |= _gl.STENCIL_BUFFER_BIT;

		_gl.clear( bits );

	};

	this.clearColor = function () {

		_gl.clear( _gl.COLOR_BUFFER_BIT );

	};

	this.clearDepth = function () {

		_gl.clear( _gl.DEPTH_BUFFER_BIT );

	};

	this.clearStencil = function () {

		_gl.clear( _gl.STENCIL_BUFFER_BIT );

	};

	this.clearTarget = function ( renderTarget, color, depth, stencil ) {

		this.setRenderTarget( renderTarget );
		this.clear( color, depth, stencil );

	};

	// Reset

	this.resetGLState = resetGLState;

	this.dispose = function() {

		_canvas.removeEventListener( 'webglcontextlost', onContextLost, false );

	};

	// Events

	function onContextLost( event ) {

		event.preventDefault();

		resetGLState();
		setDefaultGLState();

		properties.clear();

	}

	function onTextureDispose( event ) {

		var texture = event.target;

		texture.removeEventListener( 'dispose', onTextureDispose );

		deallocateTexture( texture );

		_infoMemory.textures --;


	}

	function onRenderTargetDispose( event ) {

		var renderTarget = event.target;

		renderTarget.removeEventListener( 'dispose', onRenderTargetDispose );

		deallocateRenderTarget( renderTarget );

		_infoMemory.textures --;

	}

	function onMaterialDispose( event ) {

		var material = event.target;

		material.removeEventListener( 'dispose', onMaterialDispose );

		deallocateMaterial( material );

	}

	// Buffer deallocation

	function deallocateTexture( texture ) {

		var textureProperties = properties.get( texture );

		if ( texture.image && textureProperties.__image__webglTextureCube ) {

			// cube texture

			_gl.deleteTexture( textureProperties.__image__webglTextureCube );

		} else {

			// 2D texture

			if ( textureProperties.__webglInit === undefined ) return;

			_gl.deleteTexture( textureProperties.__webglTexture );

		}

		// remove all webgl properties
		properties.delete( texture );

	}

	function deallocateRenderTarget( renderTarget ) {

		var renderTargetProperties = properties.get( renderTarget );
		var textureProperties = properties.get( renderTarget.texture );

		if ( ! renderTarget || textureProperties.__webglTexture === undefined ) return;

		_gl.deleteTexture( textureProperties.__webglTexture );

		if ( renderTarget instanceof THREE.WebGLRenderTargetCube ) {

			for ( var i = 0; i < 6; i ++ ) {

				_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] );
				_gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] );

			}

		} else {

			_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer );
			_gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer );

		}

		properties.delete( renderTarget.texture );
		properties.delete( renderTarget );

	}

	function deallocateMaterial( material ) {

		releaseMaterialProgramReference( material );

		properties.delete( material );

	}


	function releaseMaterialProgramReference( material ) {

		var programInfo = properties.get( material ).program;

		material.program = undefined;

		if ( programInfo !== undefined ) {

			programCache.releaseProgram( programInfo );

		}

	}

	// Buffer rendering

	this.renderBufferImmediate = function ( object, program, material ) {

		state.initAttributes();

		var buffers = properties.get( object );

		if ( object.hasPositions && ! buffers.position ) buffers.position = _gl.createBuffer();
		if ( object.hasNormals && ! buffers.normal ) buffers.normal = _gl.createBuffer();
		if ( object.hasUvs && ! buffers.uv ) buffers.uv = _gl.createBuffer();
		if ( object.hasColors && ! buffers.color ) buffers.color = _gl.createBuffer();

		var attributes = program.getAttributes();

		if ( object.hasPositions ) {

			_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.position );
			_gl.bufferData( _gl.ARRAY_BUFFER, object.positionArray, _gl.DYNAMIC_DRAW );

			state.enableAttribute( attributes.position );
			_gl.vertexAttribPointer( attributes.position, 3, _gl.FLOAT, false, 0, 0 );

		}

		if ( object.hasNormals ) {

			_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.normal );

			if ( material.type !== 'MeshPhongMaterial' && material.type !== 'MeshStandardMaterial' && material.shading === THREE.FlatShading ) {

				for ( var i = 0, l = object.count * 3; i < l; i += 9 ) {

					var array = object.normalArray;

					var nx = ( array[ i + 0 ] + array[ i + 3 ] + array[ i + 6 ] ) / 3;
					var ny = ( array[ i + 1 ] + array[ i + 4 ] + array[ i + 7 ] ) / 3;
					var nz = ( array[ i + 2 ] + array[ i + 5 ] + array[ i + 8 ] ) / 3;

					array[ i + 0 ] = nx;
					array[ i + 1 ] = ny;
					array[ i + 2 ] = nz;

					array[ i + 3 ] = nx;
					array[ i + 4 ] = ny;
					array[ i + 5 ] = nz;

					array[ i + 6 ] = nx;
					array[ i + 7 ] = ny;
					array[ i + 8 ] = nz;

				}

			}

			_gl.bufferData( _gl.ARRAY_BUFFER, object.normalArray, _gl.DYNAMIC_DRAW );

			state.enableAttribute( attributes.normal );

			_gl.vertexAttribPointer( attributes.normal, 3, _gl.FLOAT, false, 0, 0 );

		}

		if ( object.hasUvs && material.map ) {

			_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.uv );
			_gl.bufferData( _gl.ARRAY_BUFFER, object.uvArray, _gl.DYNAMIC_DRAW );

			state.enableAttribute( attributes.uv );

			_gl.vertexAttribPointer( attributes.uv, 2, _gl.FLOAT, false, 0, 0 );

		}

		if ( object.hasColors && material.vertexColors !== THREE.NoColors ) {

			_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.color );
			_gl.bufferData( _gl.ARRAY_BUFFER, object.colorArray, _gl.DYNAMIC_DRAW );

			state.enableAttribute( attributes.color );

			_gl.vertexAttribPointer( attributes.color, 3, _gl.FLOAT, false, 0, 0 );

		}

		state.disableUnusedAttributes();

		_gl.drawArrays( _gl.TRIANGLES, 0, object.count );

		object.count = 0;

	};

	this.renderBufferDirect = function ( camera, fog, geometry, material, object, group ) {

		setMaterial( material );

		var program = setProgram( camera, fog, material, object );

		var updateBuffers = false;
		var geometryProgram = geometry.id + '_' + program.id + '_' + material.wireframe;

		if ( geometryProgram !== _currentGeometryProgram ) {

			_currentGeometryProgram = geometryProgram;
			updateBuffers = true;

		}

		// morph targets

		var morphTargetInfluences = object.morphTargetInfluences;

		if ( morphTargetInfluences !== undefined ) {

			var activeInfluences = [];

			for ( var i = 0, l = morphTargetInfluences.length; i < l; i ++ ) {

				var influence = morphTargetInfluences[ i ];
				activeInfluences.push( [ influence, i ] );

			}

			activeInfluences.sort( absNumericalSort );

			if ( activeInfluences.length > 8 ) {

				activeInfluences.length = 8;

			}

			var morphAttributes = geometry.morphAttributes;

			for ( var i = 0, l = activeInfluences.length; i < l; i ++ ) {

				var influence = activeInfluences[ i ];
				morphInfluences[ i ] = influence[ 0 ];

				if ( influence[ 0 ] !== 0 ) {

					var index = influence[ 1 ];

					if ( material.morphTargets === true && morphAttributes.position ) geometry.addAttribute( 'morphTarget' + i, morphAttributes.position[ index ] );
					if ( material.morphNormals === true && morphAttributes.normal ) geometry.addAttribute( 'morphNormal' + i, morphAttributes.normal[ index ] );

				} else {

					if ( material.morphTargets === true ) geometry.removeAttribute( 'morphTarget' + i );
					if ( material.morphNormals === true ) geometry.removeAttribute( 'morphNormal' + i );

				}

			}

			var uniforms = program.getUniforms();

			if ( uniforms.morphTargetInfluences !== null ) {

				_gl.uniform1fv( uniforms.morphTargetInfluences, morphInfluences );

			}

			updateBuffers = true;

		}

		//

		var index = geometry.index;
		var position = geometry.attributes.position;

		if ( material.wireframe === true ) {

			index = objects.getWireframeAttribute( geometry );

		}

		var renderer;

		if ( index !== null ) {

			renderer = indexedBufferRenderer;
			renderer.setIndex( index );

		} else {

			renderer = bufferRenderer;

		}

		if ( updateBuffers ) {

			setupVertexAttributes( material, program, geometry );

			if ( index !== null ) {

				_gl.bindBuffer( _gl.ELEMENT_ARRAY_BUFFER, objects.getAttributeBuffer( index ) );

			}

		}

		//

		var dataStart = 0;
		var dataCount = Infinity;

		if ( index !== null ) {

			dataCount = index.count;

		} else if ( position !== undefined ) {

			dataCount = position.count;

		}

		var rangeStart = geometry.drawRange.start;
		var rangeCount = geometry.drawRange.count;

		var groupStart = group !== null ? group.start : 0;
		var groupCount = group !== null ? group.count : Infinity;

		var drawStart = Math.max( dataStart, rangeStart, groupStart );
		var drawEnd = Math.min( dataStart + dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1;

		var drawCount = Math.max( 0, drawEnd - drawStart + 1 );

		//

		if ( object instanceof THREE.Mesh ) {

			if ( material.wireframe === true ) {

				state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );
				renderer.setMode( _gl.LINES );

			} else {

				switch ( object.drawMode ) {

					case THREE.TrianglesDrawMode:
						renderer.setMode( _gl.TRIANGLES );
						break;

					case THREE.TriangleStripDrawMode:
						renderer.setMode( _gl.TRIANGLE_STRIP );
						break;

					case THREE.TriangleFanDrawMode:
						renderer.setMode( _gl.TRIANGLE_FAN );
						break;

				}

			}


		} else if ( object instanceof THREE.Line ) {

			var lineWidth = material.linewidth;

			if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material

			state.setLineWidth( lineWidth * getTargetPixelRatio() );

			if ( object instanceof THREE.LineSegments ) {

				renderer.setMode( _gl.LINES );

			} else {

				renderer.setMode( _gl.LINE_STRIP );

			}

		} else if ( object instanceof THREE.Points ) {

			renderer.setMode( _gl.POINTS );

		}

		if ( geometry instanceof THREE.InstancedBufferGeometry && geometry.maxInstancedCount > 0 ) {

			renderer.renderInstances( geometry, drawStart, drawCount );

		} else {

			renderer.render( drawStart, drawCount );

		}

	};

	function setupVertexAttributes( material, program, geometry, startIndex ) {

		var extension;

		if ( geometry instanceof THREE.InstancedBufferGeometry ) {

			extension = extensions.get( 'ANGLE_instanced_arrays' );

			if ( extension === null ) {

				console.error( 'THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
				return;

			}

		}

		if ( startIndex === undefined ) startIndex = 0;

		state.initAttributes();

		var geometryAttributes = geometry.attributes;

		var programAttributes = program.getAttributes();

		var materialDefaultAttributeValues = material.defaultAttributeValues;

		for ( var name in programAttributes ) {

			var programAttribute = programAttributes[ name ];

			if ( programAttribute >= 0 ) {

				var geometryAttribute = geometryAttributes[ name ];

				if ( geometryAttribute !== undefined ) {

					var size = geometryAttribute.itemSize;
					var buffer = objects.getAttributeBuffer( geometryAttribute );

					if ( geometryAttribute instanceof THREE.InterleavedBufferAttribute ) {

						var data = geometryAttribute.data;
						var stride = data.stride;
						var offset = geometryAttribute.offset;

						if ( data instanceof THREE.InstancedInterleavedBuffer ) {

							state.enableAttributeAndDivisor( programAttribute, data.meshPerAttribute, extension );

							if ( geometry.maxInstancedCount === undefined ) {

								geometry.maxInstancedCount = data.meshPerAttribute * data.count;

							}

						} else {

							state.enableAttribute( programAttribute );

						}

						_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );
						_gl.vertexAttribPointer( programAttribute, size, _gl.FLOAT, false, stride * data.array.BYTES_PER_ELEMENT, ( startIndex * stride + offset ) * data.array.BYTES_PER_ELEMENT );

					} else {

						if ( geometryAttribute instanceof THREE.InstancedBufferAttribute ) {

							state.enableAttributeAndDivisor( programAttribute, geometryAttribute.meshPerAttribute, extension );

							if ( geometry.maxInstancedCount === undefined ) {

								geometry.maxInstancedCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;

							}

						} else {

							state.enableAttribute( programAttribute );

						}

						_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );
						_gl.vertexAttribPointer( programAttribute, size, _gl.FLOAT, false, 0, startIndex * size * 4 ); // 4 bytes per Float32

					}

				} else if ( materialDefaultAttributeValues !== undefined ) {

					var value = materialDefaultAttributeValues[ name ];

					if ( value !== undefined ) {

						switch ( value.length ) {

							case 2:
								_gl.vertexAttrib2fv( programAttribute, value );
								break;

							case 3:
								_gl.vertexAttrib3fv( programAttribute, value );
								break;

							case 4:
								_gl.vertexAttrib4fv( programAttribute, value );
								break;

							default:
								_gl.vertexAttrib1fv( programAttribute, value );

						}

					}

				}

			}

		}

		state.disableUnusedAttributes();

	}

	// Sorting

	function absNumericalSort( a, b ) {

		return Math.abs( b[ 0 ] ) - Math.abs( a[ 0 ] );

	}

	function painterSortStable ( a, b ) {

		if ( a.object.renderOrder !== b.object.renderOrder ) {

			return a.object.renderOrder - b.object.renderOrder;

		} else if ( a.material.id !== b.material.id ) {

			return a.material.id - b.material.id;

		} else if ( a.z !== b.z ) {

			return a.z - b.z;

		} else {

			return a.id - b.id;

		}

	}

	function reversePainterSortStable ( a, b ) {

		if ( a.object.renderOrder !== b.object.renderOrder ) {

			return a.object.renderOrder - b.object.renderOrder;

		} if ( a.z !== b.z ) {

			return b.z - a.z;

		} else {

			return a.id - b.id;

		}

	}

	// Rendering

	this.render = function ( scene, camera, renderTarget, forceClear ) {

		if ( camera instanceof THREE.Camera === false ) {

			console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );
			return;

		}

		var fog = scene.fog;

		// reset caching for this frame

		_currentGeometryProgram = '';
		_currentMaterialId = - 1;
		_currentCamera = null;

		// update scene graph

		if ( scene.autoUpdate === true ) scene.updateMatrixWorld();

		// update camera matrices and frustum

		if ( camera.parent === null ) camera.updateMatrixWorld();

		camera.matrixWorldInverse.getInverse( camera.matrixWorld );

		_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );
		_frustum.setFromMatrix( _projScreenMatrix );

		lights.length = 0;

		opaqueObjectsLastIndex = - 1;
		transparentObjectsLastIndex = - 1;

		sprites.length = 0;
		lensFlares.length = 0;

		projectObject( scene, camera );

		opaqueObjects.length = opaqueObjectsLastIndex + 1;
		transparentObjects.length = transparentObjectsLastIndex + 1;

		if ( _this.sortObjects === true ) {

			opaqueObjects.sort( painterSortStable );
			transparentObjects.sort( reversePainterSortStable );

		}

		setupLights( lights, camera );

		//

		shadowMap.render( scene, camera );

		//

		_infoRender.calls = 0;
		_infoRender.vertices = 0;
		_infoRender.faces = 0;
		_infoRender.points = 0;

		if ( renderTarget === undefined ) {

			renderTarget = null;

		}

		this.setRenderTarget( renderTarget );

		if ( this.autoClear || forceClear ) {

			this.clear( this.autoClearColor, this.autoClearDepth, this.autoClearStencil );

		}

		//

		if ( scene.overrideMaterial ) {

			var overrideMaterial = scene.overrideMaterial;

			renderObjects( opaqueObjects, camera, fog, overrideMaterial );
			renderObjects( transparentObjects, camera, fog, overrideMaterial );

		} else {

			// opaque pass (front-to-back order)

			state.setBlending( THREE.NoBlending );
			renderObjects( opaqueObjects, camera, fog );

			// transparent pass (back-to-front order)

			renderObjects( transparentObjects, camera, fog );

		}

		// custom render plugins (post pass)

		spritePlugin.render( scene, camera );
		lensFlarePlugin.render( scene, camera, _currentViewport );

		// Generate mipmap if we're using any kind of mipmap filtering

		if ( renderTarget ) {

			var texture = renderTarget.texture;

			if ( texture.generateMipmaps && isPowerOfTwo( renderTarget ) &&
					texture.minFilter !== THREE.NearestFilter &&
					texture.minFilter !== THREE.LinearFilter ) {

				updateRenderTargetMipmap( renderTarget );

			}

		}

		// Ensure depth buffer writing is enabled so it can be cleared on next render

		state.setDepthTest( true );
		state.setDepthWrite( true );
		state.setColorWrite( true );

		// _gl.finish();

	};

	function pushRenderItem( object, geometry, material, z, group ) {

		var array, index;

		// allocate the next position in the appropriate array

		if ( material.transparent ) {

			array = transparentObjects;
			index = ++ transparentObjectsLastIndex;

		} else {

			array = opaqueObjects;
			index = ++ opaqueObjectsLastIndex;

		}

		// recycle existing render item or grow the array

		var renderItem = array[ index ];

		if ( renderItem !== undefined ) {

			renderItem.id = object.id;
			renderItem.object = object;
			renderItem.geometry = geometry;
			renderItem.material = material;
			renderItem.z = _vector3.z;
			renderItem.group = group;

		} else {

			renderItem = {
				id: object.id,
				object: object,
				geometry: geometry,
				material: material,
				z: _vector3.z,
				group: group
			};

			// assert( index === array.length );
			array.push( renderItem );

		}

	}

	function projectObject( object, camera ) {

		if ( object.visible === false ) return;

		if ( object.layers.test( camera.layers ) ) {

			if ( object instanceof THREE.Light ) {

				lights.push( object );

			} else if ( object instanceof THREE.Sprite ) {

				if ( object.frustumCulled === false || _frustum.intersectsObject( object ) === true ) {

					sprites.push( object );

				}

			} else if ( object instanceof THREE.LensFlare ) {

				lensFlares.push( object );

			} else if ( object instanceof THREE.ImmediateRenderObject ) {

				if ( _this.sortObjects === true ) {

					_vector3.setFromMatrixPosition( object.matrixWorld );
					_vector3.applyProjection( _projScreenMatrix );

				}

				pushRenderItem( object, null, object.material, _vector3.z, null );

			} else if ( object instanceof THREE.Mesh || object instanceof THREE.Line || object instanceof THREE.Points ) {

				if ( object instanceof THREE.SkinnedMesh ) {

					object.skeleton.update();

				}

				if ( object.frustumCulled === false || _frustum.intersectsObject( object ) === true ) {

					var material = object.material;

					if ( material.visible === true ) {

						if ( _this.sortObjects === true ) {

							_vector3.setFromMatrixPosition( object.matrixWorld );
							_vector3.applyProjection( _projScreenMatrix );

						}

						var geometry = objects.update( object );

						if ( material instanceof THREE.MultiMaterial ) {

							var groups = geometry.groups;
							var materials = material.materials;

							for ( var i = 0, l = groups.length; i < l; i ++ ) {

								var group = groups[ i ];
								var groupMaterial = materials[ group.materialIndex ];

								if ( groupMaterial.visible === true ) {

									pushRenderItem( object, geometry, groupMaterial, _vector3.z, group );

								}

							}

						} else {

							pushRenderItem( object, geometry, material, _vector3.z, null );

						}

					}

				}

			}

		}

		var children = object.children;

		for ( var i = 0, l = children.length; i < l; i ++ ) {

			projectObject( children[ i ], camera );

		}

	}

	function renderObjects( renderList, camera, fog, overrideMaterial ) {

		for ( var i = 0, l = renderList.length; i < l; i ++ ) {

			var renderItem = renderList[ i ];

			var object = renderItem.object;
			var geometry = renderItem.geometry;
			var material = overrideMaterial === undefined ? renderItem.material : overrideMaterial;
			var group = renderItem.group;

			object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
			object.normalMatrix.getNormalMatrix( object.modelViewMatrix );

			if ( object instanceof THREE.ImmediateRenderObject ) {

				setMaterial( material );

				var program = setProgram( camera, fog, material, object );

				_currentGeometryProgram = '';

				object.render( function ( object ) {

					_this.renderBufferImmediate( object, program, material );

				} );

			} else {

				_this.renderBufferDirect( camera, fog, geometry, material, object, group );

			}

		}

	}

	function initMaterial( material, fog, object ) {

		var materialProperties = properties.get( material );

		var parameters = programCache.getParameters( material, _lights, fog, object );
		var code = programCache.getProgramCode( material, parameters );

		var program = materialProperties.program;
		var programChange = true;

		if ( program === undefined ) {

			// new material
			material.addEventListener( 'dispose', onMaterialDispose );

		} else if ( program.code !== code ) {

			// changed glsl or parameters
			releaseMaterialProgramReference( material );

		} else if ( parameters.shaderID !== undefined ) {

			// same glsl and uniform list
			return;

		} else {

			// only rebuild uniform list
			programChange = false;

		}

		if ( programChange ) {

			if ( parameters.shaderID ) {

				var shader = THREE.ShaderLib[ parameters.shaderID ];

				materialProperties.__webglShader = {
					name: material.type,
					uniforms: THREE.UniformsUtils.clone( shader.uniforms ),
					vertexShader: shader.vertexShader,
					fragmentShader: shader.fragmentShader
				};

			} else {

				materialProperties.__webglShader = {
					name: material.type,
					uniforms: material.uniforms,
					vertexShader: material.vertexShader,
					fragmentShader: material.fragmentShader
				};

			}

			material.__webglShader = materialProperties.__webglShader;

			program = programCache.acquireProgram( material, parameters, code );

			materialProperties.program = program;
			material.program = program;

		}

		var attributes = program.getAttributes();

		if ( material.morphTargets ) {

			material.numSupportedMorphTargets = 0;

			for ( var i = 0; i < _this.maxMorphTargets; i ++ ) {

				if ( attributes[ 'morphTarget' + i ] >= 0 ) {

					material.numSupportedMorphTargets ++;

				}

			}

		}

		if ( material.morphNormals ) {

			material.numSupportedMorphNormals = 0;

			for ( var i = 0; i < _this.maxMorphNormals; i ++ ) {

				if ( attributes[ 'morphNormal' + i ] >= 0 ) {

					material.numSupportedMorphNormals ++;

				}

			}

		}

		materialProperties.uniformsList = [];

		var uniforms = materialProperties.__webglShader.uniforms,
			uniformLocations = materialProperties.program.getUniforms();

		for ( var u in uniforms ) {

			var location = uniformLocations[ u ];

			if ( location ) {

				materialProperties.uniformsList.push( [ materialProperties.__webglShader.uniforms[ u ], location ] );

			}

		}

		if ( material instanceof THREE.MeshPhongMaterial ||
				material instanceof THREE.MeshLambertMaterial ||
				material instanceof THREE.MeshStandardMaterial ||
				material.lights ) {

			// store the light setup it was created for

			materialProperties.lightsHash = _lights.hash;

			// wire up the material to this renderer's lighting state

			uniforms.ambientLightColor.value = _lights.ambient;
			uniforms.directionalLights.value = _lights.directional;
			uniforms.pointLights.value = _lights.point;
			uniforms.spotLights.value = _lights.spot;
			uniforms.hemisphereLights.value = _lights.hemi;

		}

		// detect dynamic uniforms

		materialProperties.hasDynamicUniforms = false;

		for ( var j = 0, jl = materialProperties.uniformsList.length; j < jl; j ++ ) {

			var uniform = materialProperties.uniformsList[ j ][ 0 ];

			if ( uniform.dynamic === true ) {

				materialProperties.hasDynamicUniforms = true;
				break;

			}

		}

	}

	function setMaterial( material ) {

		setMaterialFaces( material );

		if ( material.transparent === true ) {

			state.setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha );

		} else {

			state.setBlending( THREE.NoBlending );

		}

		state.setDepthFunc( material.depthFunc );
		state.setDepthTest( material.depthTest );
		state.setDepthWrite( material.depthWrite );
		state.setColorWrite( material.colorWrite );
		state.setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );

	}

	function setMaterialFaces( material ) {

		material.side !== THREE.DoubleSide ? state.enable( _gl.CULL_FACE ) : state.disable( _gl.CULL_FACE );
		state.setFlipSided( material.side === THREE.BackSide );

	}

	function setProgram( camera, fog, material, object ) {

		_usedTextureUnits = 0;

		var materialProperties = properties.get( material );

		if ( materialProperties.program === undefined ) {

			material.needsUpdate = true;

		}

		if ( materialProperties.lightsHash !== undefined &&
			materialProperties.lightsHash !== _lights.hash ) {

			material.needsUpdate = true;

		}

		if ( material.needsUpdate ) {

			initMaterial( material, fog, object );
			material.needsUpdate = false;

		}

		var refreshProgram = false;
		var refreshMaterial = false;
		var refreshLights = false;

		var program = materialProperties.program,
			p_uniforms = program.getUniforms(),
			m_uniforms = materialProperties.__webglShader.uniforms;

		if ( program.id !== _currentProgram ) {

			_gl.useProgram( program.program );
			_currentProgram = program.id;

			refreshProgram = true;
			refreshMaterial = true;
			refreshLights = true;

		}

		if ( material.id !== _currentMaterialId ) {

			_currentMaterialId = material.id;

			refreshMaterial = true;

		}

		if ( refreshProgram || camera !== _currentCamera ) {

			_gl.uniformMatrix4fv( p_uniforms.projectionMatrix, false, camera.projectionMatrix.elements );

			if ( capabilities.logarithmicDepthBuffer ) {

				_gl.uniform1f( p_uniforms.logDepthBufFC, 2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );

			}


			if ( camera !== _currentCamera ) {

				_currentCamera = camera;

				// lighting uniforms depend on the camera so enforce an update
				// now, in case this material supports lights - or later, when
				// the next material that does gets activated:

				refreshMaterial = true;		// set to true on material change
				refreshLights = true;		// remains set until update done

			}

			// load material specific uniforms
			// (shader material also gets them for the sake of genericity)

			if ( material instanceof THREE.ShaderMaterial ||
				 material instanceof THREE.MeshPhongMaterial ||
				 material instanceof THREE.MeshStandardMaterial ||
				 material.envMap ) {

				if ( p_uniforms.cameraPosition !== undefined ) {

					_vector3.setFromMatrixPosition( camera.matrixWorld );
					_gl.uniform3f( p_uniforms.cameraPosition, _vector3.x, _vector3.y, _vector3.z );

				}

			}

			if ( material instanceof THREE.MeshPhongMaterial ||
				 material instanceof THREE.MeshLambertMaterial ||
				 material instanceof THREE.MeshBasicMaterial ||
				 material instanceof THREE.MeshStandardMaterial ||
				 material instanceof THREE.ShaderMaterial ||
				 material.skinning ) {

				if ( p_uniforms.viewMatrix !== undefined ) {

					_gl.uniformMatrix4fv( p_uniforms.viewMatrix, false, camera.matrixWorldInverse.elements );

				}

			}

		}

		// skinning uniforms must be set even if material didn't change
		// auto-setting of texture unit for bone texture must go before other textures
		// not sure why, but otherwise weird things happen

		if ( material.skinning ) {

			if ( object.bindMatrix && p_uniforms.bindMatrix !== undefined ) {

				_gl.uniformMatrix4fv( p_uniforms.bindMatrix, false, object.bindMatrix.elements );

			}

			if ( object.bindMatrixInverse && p_uniforms.bindMatrixInverse !== undefined ) {

				_gl.uniformMatrix4fv( p_uniforms.bindMatrixInverse, false, object.bindMatrixInverse.elements );

			}

			if ( capabilities.floatVertexTextures && object.skeleton && object.skeleton.useVertexTexture ) {

				if ( p_uniforms.boneTexture !== undefined ) {

					var textureUnit = getTextureUnit();

					_gl.uniform1i( p_uniforms.boneTexture, textureUnit );
					_this.setTexture( object.skeleton.boneTexture, textureUnit );

				}

				if ( p_uniforms.boneTextureWidth !== undefined ) {

					_gl.uniform1i( p_uniforms.boneTextureWidth, object.skeleton.boneTextureWidth );

				}

				if ( p_uniforms.boneTextureHeight !== undefined ) {

					_gl.uniform1i( p_uniforms.boneTextureHeight, object.skeleton.boneTextureHeight );

				}

			} else if ( object.skeleton && object.skeleton.boneMatrices ) {

				if ( p_uniforms.boneGlobalMatrices !== undefined ) {

					_gl.uniformMatrix4fv( p_uniforms.boneGlobalMatrices, false, object.skeleton.boneMatrices );

				}

			}

		}

		if ( refreshMaterial ) {

			if ( material instanceof THREE.MeshPhongMaterial ||
				 material instanceof THREE.MeshLambertMaterial ||
				 material instanceof THREE.MeshStandardMaterial ||
				 material.lights ) {

				// the current material requires lighting info

				// note: all lighting uniforms are always set correctly
				// they simply reference the renderer's state for their
				// values
				//
				// use the current material's .needsUpdate flags to set
				// the GL state when required

				markUniformsLightsNeedsUpdate( m_uniforms, refreshLights );

			}

			// refresh uniforms common to several materials

			if ( fog && material.fog ) {

				refreshUniformsFog( m_uniforms, fog );

			}

			if ( material instanceof THREE.MeshBasicMaterial ||
				 material instanceof THREE.MeshLambertMaterial ||
				 material instanceof THREE.MeshPhongMaterial ||
				 material instanceof THREE.MeshStandardMaterial ) {

				refreshUniformsCommon( m_uniforms, material );

			}

			// refresh single material specific uniforms

			if ( material instanceof THREE.LineBasicMaterial ) {

				refreshUniformsLine( m_uniforms, material );

			} else if ( material instanceof THREE.LineDashedMaterial ) {

				refreshUniformsLine( m_uniforms, material );
				refreshUniformsDash( m_uniforms, material );

			} else if ( material instanceof THREE.PointsMaterial ) {

				refreshUniformsPoints( m_uniforms, material );

			} else if ( material instanceof THREE.MeshLambertMaterial ) {

				refreshUniformsLambert( m_uniforms, material );

			} else if ( material instanceof THREE.MeshPhongMaterial ) {

				refreshUniformsPhong( m_uniforms, material );

			} else if ( material instanceof THREE.MeshStandardMaterial ) {

				refreshUniformsStandard( m_uniforms, material );

			} else if ( material instanceof THREE.MeshDepthMaterial ) {

				m_uniforms.mNear.value = camera.near;
				m_uniforms.mFar.value = camera.far;
				m_uniforms.opacity.value = material.opacity;

			} else if ( material instanceof THREE.MeshNormalMaterial ) {

				m_uniforms.opacity.value = material.opacity;

			}

			if ( shadowMap.enabled ) {

				if ( object.receiveShadow && ! material._shadowPass ) {

					refreshUniformsShadow( m_uniforms, camera );

				}

			}

			// load common uniforms

			loadUniformsGeneric( materialProperties.uniformsList );

		}

		loadUniformsMatrices( p_uniforms, object );

		if ( p_uniforms.modelMatrix !== undefined ) {

			_gl.uniformMatrix4fv( p_uniforms.modelMatrix, false, object.matrixWorld.elements );

		}

		if ( materialProperties.hasDynamicUniforms === true ) {

			updateDynamicUniforms( materialProperties.uniformsList, object, camera );

		}

		return program;

	}

	function updateDynamicUniforms ( uniforms, object, camera ) {

		var dynamicUniforms = [];

		for ( var j = 0, jl = uniforms.length; j < jl; j ++ ) {

			var uniform = uniforms[ j ][ 0 ];
			var onUpdateCallback = uniform.onUpdateCallback;

			if ( onUpdateCallback !== undefined ) {

				onUpdateCallback.bind( uniform )( object, camera );
				dynamicUniforms.push( uniforms[ j ] );

			}

		}

		loadUniformsGeneric( dynamicUniforms );

	}

	// Uniforms (refresh uniforms objects)

	function refreshUniformsCommon ( uniforms, material ) {

		uniforms.opacity.value = material.opacity;

		uniforms.diffuse.value = material.color;

		if ( material.emissive ) {

			uniforms.emissive.value = material.emissive;

		}

		uniforms.map.value = material.map;
		uniforms.specularMap.value = material.specularMap;
		uniforms.alphaMap.value = material.alphaMap;

		if ( material.aoMap ) {

			uniforms.aoMap.value = material.aoMap;
			uniforms.aoMapIntensity.value = material.aoMapIntensity;

		}

		// uv repeat and offset setting priorities
		// 1. color map
		// 2. specular map
		// 3. normal map
		// 4. bump map
		// 5. alpha map
		// 6. emissive map

		var uvScaleMap;

		if ( material.map ) {

			uvScaleMap = material.map;

		} else if ( material.specularMap ) {

			uvScaleMap = material.specularMap;

		} else if ( material.displacementMap ) {

			uvScaleMap = material.displacementMap;

		} else if ( material.normalMap ) {

			uvScaleMap = material.normalMap;

		} else if ( material.bumpMap ) {

			uvScaleMap = material.bumpMap;

		} else if ( material.roughnessMap ) {

			uvScaleMap = material.roughnessMap;

		} else if ( material.metalnessMap ) {

			uvScaleMap = material.metalnessMap;

		} else if ( material.alphaMap ) {

			uvScaleMap = material.alphaMap;

		} else if ( material.emissiveMap ) {

			uvScaleMap = material.emissiveMap;

		}

		if ( uvScaleMap !== undefined ) {

			if ( uvScaleMap instanceof THREE.WebGLRenderTarget ) {

				uvScaleMap = uvScaleMap.texture;

			}

			var offset = uvScaleMap.offset;
			var repeat = uvScaleMap.repeat;

			uniforms.offsetRepeat.value.set( offset.x, offset.y, repeat.x, repeat.y );

		}

		uniforms.envMap.value = material.envMap;
		uniforms.flipEnvMap.value = ( material.envMap instanceof THREE.WebGLRenderTargetCube ) ? 1 : - 1;

		uniforms.reflectivity.value = material.reflectivity;
		uniforms.refractionRatio.value = material.refractionRatio;

	}

	function refreshUniformsLine ( uniforms, material ) {

		uniforms.diffuse.value = material.color;
		uniforms.opacity.value = material.opacity;

	}

	function refreshUniformsDash ( uniforms, material ) {

		uniforms.dashSize.value = material.dashSize;
		uniforms.totalSize.value = material.dashSize + material.gapSize;
		uniforms.scale.value = material.scale;

	}

	function refreshUniformsPoints ( uniforms, material ) {

		uniforms.diffuse.value = material.color;
		uniforms.opacity.value = material.opacity;
		uniforms.size.value = material.size;
		uniforms.scale.value = _canvas.height / 2.0; // TODO: Cache this.

		uniforms.map.value = material.map;

		if ( material.map !== null ) {

			var offset = material.map.offset;
			var repeat = material.map.repeat;

			uniforms.offsetRepeat.value.set( offset.x, offset.y, repeat.x, repeat.y );

		}

	}

	function refreshUniformsFog ( uniforms, fog ) {

		uniforms.fogColor.value = fog.color;

		if ( fog instanceof THREE.Fog ) {

			uniforms.fogNear.value = fog.near;
			uniforms.fogFar.value = fog.far;

		} else if ( fog instanceof THREE.FogExp2 ) {

			uniforms.fogDensity.value = fog.density;

		}

	}

	function refreshUniformsLambert ( uniforms, material ) {

		if ( material.lightMap ) {

			uniforms.lightMap.value = material.lightMap;
			uniforms.lightMapIntensity.value = material.lightMapIntensity;

		}

		if ( material.emissiveMap ) {

			uniforms.emissiveMap.value = material.emissiveMap;

		}

	}

	function refreshUniformsPhong ( uniforms, material ) {

		uniforms.specular.value = material.specular;
		uniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 )

		if ( material.lightMap ) {

			uniforms.lightMap.value = material.lightMap;
			uniforms.lightMapIntensity.value = material.lightMapIntensity;

		}

		if ( material.emissiveMap ) {

			uniforms.emissiveMap.value = material.emissiveMap;

		}

		if ( material.bumpMap ) {

			uniforms.bumpMap.value = material.bumpMap;
			uniforms.bumpScale.value = material.bumpScale;

		}

		if ( material.normalMap ) {

			uniforms.normalMap.value = material.normalMap;
			uniforms.normalScale.value.copy( material.normalScale );

		}

		if ( material.displacementMap ) {

			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;

		}

	}

	function refreshUniformsStandard ( uniforms, material ) {

		uniforms.roughness.value = material.roughness;
		uniforms.metalness.value = material.metalness;

		if ( material.roughnessMap ) {

			uniforms.roughnessMap.value = material.roughnessMap;

		}

		if ( material.metalnessMap ) {

			uniforms.metalnessMap.value = material.metalnessMap;

		}

		if ( material.lightMap ) {

			uniforms.lightMap.value = material.lightMap;
			uniforms.lightMapIntensity.value = material.lightMapIntensity;

		}

		if ( material.emissiveMap ) {

			uniforms.emissiveMap.value = material.emissiveMap;

		}

		if ( material.bumpMap ) {

			uniforms.bumpMap.value = material.bumpMap;
			uniforms.bumpScale.value = material.bumpScale;

		}

		if ( material.normalMap ) {

			uniforms.normalMap.value = material.normalMap;
			uniforms.normalScale.value.copy( material.normalScale );

		}

		if ( material.displacementMap ) {

			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;

		}

		if ( material.envMap ) {

			//uniforms.envMap.value = material.envMap; // part of uniforms common
			uniforms.envMapIntensity.value = material.envMapIntensity;

		}

	}

	// If uniforms are marked as clean, they don't need to be loaded to the GPU.

	function markUniformsLightsNeedsUpdate ( uniforms, value ) {

		uniforms.ambientLightColor.needsUpdate = value;

		uniforms.directionalLights.needsUpdate = value;
		uniforms.pointLights.needsUpdate = value;
		uniforms.spotLights.needsUpdate = value;
		uniforms.hemisphereLights.needsUpdate = value;

	}

	function refreshUniformsShadow ( uniforms, camera ) {

		if ( uniforms.shadowMatrix ) {

			var shadows = _lights.shadows;

			for ( var i = 0, l = shadows.length; i < l; i ++ ) {

				var light = shadows[ i ];
				var shadow = light.shadow;

				if ( light instanceof THREE.PointLight ) {

					// for point lights we set the shadow matrix to be a translation-only matrix
					// equal to inverse of the light's position
					_vector3.setFromMatrixPosition( light.matrixWorld ).negate();
					shadow.matrix.identity().setPosition( _vector3 );

					// for point lights we set the sign of the shadowDarkness uniform to be negative
					uniforms.shadowDarkness.value[ i ] = - shadow.darkness;

				} else {

					uniforms.shadowDarkness.value[ i ] = shadow.darkness;

				}

				uniforms.shadowBias.value[ i ] = shadow.bias;
				uniforms.shadowMap.value[ i ] = shadow.map;
				uniforms.shadowMapSize.value[ i ] = shadow.mapSize;
				uniforms.shadowMatrix.value[ i ] = shadow.matrix;

			}

		}

	}

	// Uniforms (load to GPU)

	function loadUniformsMatrices ( uniforms, object ) {

		_gl.uniformMatrix4fv( uniforms.modelViewMatrix, false, object.modelViewMatrix.elements );

		if ( uniforms.normalMatrix ) {

			_gl.uniformMatrix3fv( uniforms.normalMatrix, false, object.normalMatrix.elements );

		}

	}

	function getTextureUnit() {

		var textureUnit = _usedTextureUnits;

		if ( textureUnit >= capabilities.maxTextures ) {

			console.warn( 'WebGLRenderer: trying to use ' + textureUnit + ' texture units while this GPU supports only ' + capabilities.maxTextures );

		}

		_usedTextureUnits += 1;

		return textureUnit;

	}

	function loadUniformsGeneric ( uniforms ) {

		var texture, textureUnit;

		for ( var j = 0, jl = uniforms.length; j < jl; j ++ ) {

			var uniform = uniforms[ j ][ 0 ];

			// needsUpdate property is not added to all uniforms.
			if ( uniform.needsUpdate === false ) continue;

			var type = uniform.type;
			var value = uniform.value;
			var location = uniforms[ j ][ 1 ];

			switch ( type ) {

				case '1i':
					_gl.uniform1i( location, value );
					break;

				case '1f':
					_gl.uniform1f( location, value );
					break;

				case '2f':
					_gl.uniform2f( location, value[ 0 ], value[ 1 ] );
					break;

				case '3f':
					_gl.uniform3f( location, value[ 0 ], value[ 1 ], value[ 2 ] );
					break;

				case '4f':
					_gl.uniform4f( location, value[ 0 ], value[ 1 ], value[ 2 ], value[ 3 ] );
					break;

				case '1iv':
					_gl.uniform1iv( location, value );
					break;

				case '3iv':
					_gl.uniform3iv( location, value );
					break;

				case '1fv':
					_gl.uniform1fv( location, value );
					break;

				case '2fv':
					_gl.uniform2fv( location, value );
					break;

				case '3fv':
					_gl.uniform3fv( location, value );
					break;

				case '4fv':
					_gl.uniform4fv( location, value );
					break;

				case 'Matrix2fv':
					_gl.uniformMatrix2fv( location, false, value );
					break;

				case 'Matrix3fv':
					_gl.uniformMatrix3fv( location, false, value );
					break;

				case 'Matrix4fv':
					_gl.uniformMatrix4fv( location, false, value );
					break;

				//

				case 'i':

					// single integer
					_gl.uniform1i( location, value );

					break;

				case 'f':

					// single float
					_gl.uniform1f( location, value );

					break;

				case 'v2':

					// single THREE.Vector2
					_gl.uniform2f( location, value.x, value.y );

					break;

				case 'v3':

					// single THREE.Vector3
					_gl.uniform3f( location, value.x, value.y, value.z );

					break;

				case 'v4':

					// single THREE.Vector4
					_gl.uniform4f( location, value.x, value.y, value.z, value.w );

					break;

				case 'c':

					// single THREE.Color
					_gl.uniform3f( location, value.r, value.g, value.b );

					break;

				/*
				case 's':

					// TODO: Optimize this.
					for( var propertyName in uniform.properties ) {

						var property = uniform.properties[ propertyName ];
						var locationProperty =  location[ propertyName ];
						var valueProperty = value[ propertyName ];

						switch( property.type ) {
							case 'i':
								_gl.uniform1i( locationProperty, valueProperty );
								break;
							case 'f':
								_gl.uniform1f( locationProperty, valueProperty );
								break;
							case 'v2':
								_gl.uniform2f( locationProperty, valueProperty.x, valueProperty.y );
								break;
							case 'v3':
								_gl.uniform3f( locationProperty, valueProperty.x, valueProperty.y, valueProperty.z );
								break;
							case 'v4':
								_gl.uniform4f( locationProperty, valueProperty.x, valueProperty.y, valueProperty.z, valueProperty.w );
								break;
							case 'c':
								_gl.uniform3f( locationProperty, valueProperty.r, valueProperty.g, valueProperty.b );
								break;
						};

					}

					break;
				*/

				case 'sa':

					// TODO: Optimize this.
					for ( var i = 0; i < value.length; i ++ ) {

						for ( var propertyName in uniform.properties ) {

							var property = uniform.properties[ propertyName ];
							var locationProperty =  location[ i ][ propertyName ];
							var valueProperty = value[ i ][ propertyName ];

							switch ( property.type ) {
								case 'i':
									_gl.uniform1i( locationProperty, valueProperty );
									break;
								case 'f':
									_gl.uniform1f( locationProperty, valueProperty );
									break;
								case 'v2':
									_gl.uniform2f( locationProperty, valueProperty.x, valueProperty.y );
									break;
								case 'v3':
									_gl.uniform3f( locationProperty, valueProperty.x, valueProperty.y, valueProperty.z );
									break;
								case 'v4':
									_gl.uniform4f( locationProperty, valueProperty.x, valueProperty.y, valueProperty.z, valueProperty.w );
									break;
								case 'c':
									_gl.uniform3f( locationProperty, valueProperty.r, valueProperty.g, valueProperty.b );
									break;
							}

						}

					}

					break;

				case 'iv1':

					// flat array of integers (JS or typed array)
					_gl.uniform1iv( location, value );

					break;

				case 'iv':

					// flat array of integers with 3 x N size (JS or typed array)
					_gl.uniform3iv( location, value );

					break;

				case 'fv1':

					// flat array of floats (JS or typed array)
					_gl.uniform1fv( location, value );

					break;

				case 'fv':

					// flat array of floats with 3 x N size (JS or typed array)
					_gl.uniform3fv( location, value );

					break;

				case 'v2v':

					// array of THREE.Vector2

					if ( uniform._array === undefined ) {

						uniform._array = new Float32Array( 2 * value.length );

					}

					for ( var i = 0, i2 = 0, il = value.length; i < il; i ++, i2 += 2 ) {

						uniform._array[ i2 + 0 ] = value[ i ].x;
						uniform._array[ i2 + 1 ] = value[ i ].y;

					}

					_gl.uniform2fv( location, uniform._array );

					break;

				case 'v3v':

					// array of THREE.Vector3

					if ( uniform._array === undefined ) {

						uniform._array = new Float32Array( 3 * value.length );

					}

					for ( var i = 0, i3 = 0, il = value.length; i < il; i ++, i3 += 3 ) {

						uniform._array[ i3 + 0 ] = value[ i ].x;
						uniform._array[ i3 + 1 ] = value[ i ].y;
						uniform._array[ i3 + 2 ] = value[ i ].z;

					}

					_gl.uniform3fv( location, uniform._array );

					break;

				case 'v4v':

					// array of THREE.Vector4

					if ( uniform._array === undefined ) {

						uniform._array = new Float32Array( 4 * value.length );

					}

					for ( var i = 0, i4 = 0, il = value.length; i < il; i ++, i4 += 4 ) {

						uniform._array[ i4 + 0 ] = value[ i ].x;
						uniform._array[ i4 + 1 ] = value[ i ].y;
						uniform._array[ i4 + 2 ] = value[ i ].z;
						uniform._array[ i4 + 3 ] = value[ i ].w;

					}

					_gl.uniform4fv( location, uniform._array );

					break;

				case 'm2':

					// single THREE.Matrix2
					_gl.uniformMatrix2fv( location, false, value.elements );

					break;

				case 'm3':

					// single THREE.Matrix3
					_gl.uniformMatrix3fv( location, false, value.elements );

					break;

				case 'm3v':

					// array of THREE.Matrix3

					if ( uniform._array === undefined ) {

						uniform._array = new Float32Array( 9 * value.length );

					}

					for ( var i = 0, il = value.length; i < il; i ++ ) {

						value[ i ].flattenToArrayOffset( uniform._array, i * 9 );

					}

					_gl.uniformMatrix3fv( location, false, uniform._array );

					break;

				case 'm4':

					// single THREE.Matrix4
					_gl.uniformMatrix4fv( location, false, value.elements );

					break;

				case 'm4v':

					// array of THREE.Matrix4

					if ( uniform._array === undefined ) {

						uniform._array = new Float32Array( 16 * value.length );

					}

					for ( var i = 0, il = value.length; i < il; i ++ ) {

						value[ i ].flattenToArrayOffset( uniform._array, i * 16 );

					}

					_gl.uniformMatrix4fv( location, false, uniform._array );

					break;

				case 't':

					// single THREE.Texture (2d or cube)

					texture = value;
					textureUnit = getTextureUnit();

					_gl.uniform1i( location, textureUnit );

					if ( ! texture ) continue;

					if ( texture instanceof THREE.CubeTexture ||
						 ( Array.isArray( texture.image ) && texture.image.length === 6 ) ) {

						// CompressedTexture can have Array in image :/

						setCubeTexture( texture, textureUnit );

					} else if ( texture instanceof THREE.WebGLRenderTargetCube ) {

						setCubeTextureDynamic( texture.texture, textureUnit );

					} else if ( texture instanceof THREE.WebGLRenderTarget ) {

						_this.setTexture( texture.texture, textureUnit );

					} else {

						_this.setTexture( texture, textureUnit );

					}

					break;

				case 'tv':

					// array of THREE.Texture (2d or cube)

					if ( uniform._array === undefined ) {

						uniform._array = [];

					}

					for ( var i = 0, il = uniform.value.length; i < il; i ++ ) {

						uniform._array[ i ] = getTextureUnit();

					}

					_gl.uniform1iv( location, uniform._array );

					for ( var i = 0, il = uniform.value.length; i < il; i ++ ) {

						texture = uniform.value[ i ];
						textureUnit = uniform._array[ i ];

						if ( ! texture ) continue;

						if ( texture instanceof THREE.CubeTexture ||
							 ( texture.image instanceof Array && texture.image.length === 6 ) ) {

							// CompressedTexture can have Array in image :/

							setCubeTexture( texture, textureUnit );

						} else if ( texture instanceof THREE.WebGLRenderTarget ) {

							_this.setTexture( texture.texture, textureUnit );

						} else if ( texture instanceof THREE.WebGLRenderTargetCube ) {

							setCubeTextureDynamic( texture.texture, textureUnit );

						} else {

							_this.setTexture( texture, textureUnit );

						}

					}

					break;

				default:

					console.warn( 'THREE.WebGLRenderer: Unknown uniform type: ' + type );

			}

		}

	}

	function setupLights ( lights, camera ) {

		var l, ll, light,
		r = 0, g = 0, b = 0,
		color,
		intensity,
		distance,

		viewMatrix = camera.matrixWorldInverse,

		directionalLength = 0,
		pointLength = 0,
		spotLength = 0,
		hemiLength = 0,

		shadowsLength = 0;

		_lights.shadowsPointLight = 0;

		for ( l = 0, ll = lights.length; l < ll; l ++ ) {

			light = lights[ l ];

			color = light.color;
			intensity = light.intensity;
			distance = light.distance;

			if ( light instanceof THREE.AmbientLight ) {

				r += color.r * intensity;
				g += color.g * intensity;
				b += color.b * intensity;

			} else if ( light instanceof THREE.DirectionalLight ) {

				var uniforms = lightCache.get( light );

				uniforms.direction.setFromMatrixPosition( light.matrixWorld );
				_vector3.setFromMatrixPosition( light.target.matrixWorld );
				uniforms.direction.sub( _vector3 );
				uniforms.direction.transformDirection( viewMatrix );
				uniforms.color.copy( light.color ).multiplyScalar( light.intensity );

				if ( light.castShadow ) {

					uniforms.shadow = shadowsLength;

					_lights.shadows[ shadowsLength ++ ] = light;

				} else {

					uniforms.shadow = - 1;

				}

				_lights.directional[ directionalLength ++ ] = uniforms;

			} else if ( light instanceof THREE.PointLight ) {

				var uniforms = lightCache.get( light );

				uniforms.position.setFromMatrixPosition( light.matrixWorld );
				uniforms.position.applyMatrix4( viewMatrix );

				uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
				uniforms.distance = light.distance;
				uniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;

				if ( light.castShadow ) {

					uniforms.shadow = shadowsLength;

					_lights.shadows[ shadowsLength ++ ] = light;
					_lights.shadowsPointLight ++;

				} else {

					uniforms.shadow = - 1;

				}

				_lights.point[ pointLength ++ ] = uniforms;

			} else if ( light instanceof THREE.SpotLight ) {

				var uniforms = lightCache.get( light );

				uniforms.position.setFromMatrixPosition( light.matrixWorld );
				uniforms.position.applyMatrix4( viewMatrix );

				uniforms.color.copy( color ).multiplyScalar( intensity );
				uniforms.distance = distance;

				uniforms.direction.setFromMatrixPosition( light.matrixWorld );
				_vector3.setFromMatrixPosition( light.target.matrixWorld );
				uniforms.direction.sub( _vector3 );
				uniforms.direction.transformDirection( viewMatrix );

				uniforms.angleCos = Math.cos( light.angle );
				uniforms.exponent = light.exponent;
				uniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;

				if ( light.castShadow ) {

					uniforms.shadow = shadowsLength;

					_lights.shadows[ shadowsLength ++ ] = light;

				} else {

					uniforms.shadow = - 1;

				}

				_lights.spot[ spotLength ++ ] = uniforms;

			} else if ( light instanceof THREE.HemisphereLight ) {

				var uniforms = lightCache.get( light );

				uniforms.direction.setFromMatrixPosition( light.matrixWorld );
				uniforms.direction.transformDirection( viewMatrix );
				uniforms.direction.normalize();

				uniforms.skyColor.copy( light.color ).multiplyScalar( intensity );
				uniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity );

				_lights.hemi[ hemiLength ++ ] = uniforms;

			}

		}

		_lights.ambient[ 0 ] = r;
		_lights.ambient[ 1 ] = g;
		_lights.ambient[ 2 ] = b;

		_lights.directional.length = directionalLength;
		_lights.point.length = pointLength;
		_lights.spot.length = spotLength;
		_lights.hemi.length = hemiLength;

		_lights.shadows.length = shadowsLength;

		_lights.hash = directionalLength + ',' + pointLength + ',' + spotLength + ',' + hemiLength + ',' + shadowsLength;

	}

	// GL state setting

	this.setFaceCulling = function ( cullFace, frontFaceDirection ) {

		if ( cullFace === THREE.CullFaceNone ) {

			state.disable( _gl.CULL_FACE );

		} else {

			if ( frontFaceDirection === THREE.FrontFaceDirectionCW ) {

				_gl.frontFace( _gl.CW );

			} else {

				_gl.frontFace( _gl.CCW );

			}

			if ( cullFace === THREE.CullFaceBack ) {

				_gl.cullFace( _gl.BACK );

			} else if ( cullFace === THREE.CullFaceFront ) {

				_gl.cullFace( _gl.FRONT );

			} else {

				_gl.cullFace( _gl.FRONT_AND_BACK );

			}

			state.enable( _gl.CULL_FACE );

		}

	};

	// Textures

	function setTextureParameters ( textureType, texture, isImagePowerOfTwo ) {

		var extension;

		if ( isImagePowerOfTwo ) {

			_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, paramThreeToGL( texture.wrapS ) );
			_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, paramThreeToGL( texture.wrapT ) );

			_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, paramThreeToGL( texture.magFilter ) );
			_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, paramThreeToGL( texture.minFilter ) );

		} else {

			_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, _gl.CLAMP_TO_EDGE );
			_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, _gl.CLAMP_TO_EDGE );

			if ( texture.wrapS !== THREE.ClampToEdgeWrapping || texture.wrapT !== THREE.ClampToEdgeWrapping ) {

				console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.', texture );

			}

			_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, filterFallback( texture.magFilter ) );
			_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, filterFallback( texture.minFilter ) );

			if ( texture.minFilter !== THREE.NearestFilter && texture.minFilter !== THREE.LinearFilter ) {

				console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.', texture );

			}

		}

		extension = extensions.get( 'EXT_texture_filter_anisotropic' );

		if ( extension ) {

			if ( texture.type === THREE.FloatType && extensions.get( 'OES_texture_float_linear' ) === null ) return;
			if ( texture.type === THREE.HalfFloatType && extensions.get( 'OES_texture_half_float_linear' ) === null ) return;

			if ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) {

				_gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, _this.getMaxAnisotropy() ) );
				properties.get( texture ).__currentAnisotropy = texture.anisotropy;

			}

		}

	}

	function uploadTexture( textureProperties, texture, slot ) {

		if ( textureProperties.__webglInit === undefined ) {

			textureProperties.__webglInit = true;

			texture.addEventListener( 'dispose', onTextureDispose );

			textureProperties.__webglTexture = _gl.createTexture();

			_infoMemory.textures ++;

		}

		state.activeTexture( _gl.TEXTURE0 + slot );
		state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );

		_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );
		_gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha );
		_gl.pixelStorei( _gl.UNPACK_ALIGNMENT, texture.unpackAlignment );

		texture.image = clampToMaxSize( texture.image, capabilities.maxTextureSize );

		if ( textureNeedsPowerOfTwo( texture ) && isPowerOfTwo( texture.image ) === false ) {

			texture.image = makePowerOfTwo( texture.image );

		}

		var image = texture.image,
		isImagePowerOfTwo = isPowerOfTwo( image ),
		glFormat = paramThreeToGL( texture.format ),
		glType = paramThreeToGL( texture.type );

		setTextureParameters( _gl.TEXTURE_2D, texture, isImagePowerOfTwo );

		var mipmap, mipmaps = texture.mipmaps;

		if ( texture instanceof THREE.DataTexture ) {

			// use manually created mipmaps if available
			// if there are no manual mipmaps
			// set 0 level mipmap and then use GL to generate other mipmap levels

			if ( mipmaps.length > 0 && isImagePowerOfTwo ) {

				for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {

					mipmap = mipmaps[ i ];
					state.texImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

				}

				texture.generateMipmaps = false;

			} else {

				state.texImage2D( _gl.TEXTURE_2D, 0, glFormat, image.width, image.height, 0, glFormat, glType, image.data );

			}

		} else if ( texture instanceof THREE.CompressedTexture ) {

			for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {

				mipmap = mipmaps[ i ];

				if ( texture.format !== THREE.RGBAFormat && texture.format !== THREE.RGBFormat ) {

					if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {

						state.compressedTexImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, mipmap.data );

					} else {

						console.warn( "THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()" );

					}

				} else {

					state.texImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

				}

			}

		} else {

			// regular Texture (image, video, canvas)

			// use manually created mipmaps if available
			// if there are no manual mipmaps
			// set 0 level mipmap and then use GL to generate other mipmap levels

			if ( mipmaps.length > 0 && isImagePowerOfTwo ) {

				for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {

					mipmap = mipmaps[ i ];
					state.texImage2D( _gl.TEXTURE_2D, i, glFormat, glFormat, glType, mipmap );

				}

				texture.generateMipmaps = false;

			} else {

				state.texImage2D( _gl.TEXTURE_2D, 0, glFormat, glFormat, glType, texture.image );

			}

		}

		if ( texture.generateMipmaps && isImagePowerOfTwo ) _gl.generateMipmap( _gl.TEXTURE_2D );

		textureProperties.__version = texture.version;

		if ( texture.onUpdate ) texture.onUpdate( texture );

	}

	this.setTexture = function ( texture, slot ) {

		var textureProperties = properties.get( texture );

		if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

			var image = texture.image;

			if ( image === undefined ) {

				console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined', texture );
				return;

			}

			if ( image.complete === false ) {

				console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete', texture );
				return;

			}

			uploadTexture( textureProperties, texture, slot );

			return;

		}

		state.activeTexture( _gl.TEXTURE0 + slot );
		state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );

	};

	function clampToMaxSize ( image, maxSize ) {

		if ( image.width > maxSize || image.height > maxSize ) {

			// Warning: Scaling through the canvas will only work with images that use
			// premultiplied alpha.

			var scale = maxSize / Math.max( image.width, image.height );

			var canvas = document.createElement( 'canvas' );
			canvas.width = Math.floor( image.width * scale );
			canvas.height = Math.floor( image.height * scale );

			var context = canvas.getContext( '2d' );
			context.drawImage( image, 0, 0, image.width, image.height, 0, 0, canvas.width, canvas.height );

			console.warn( 'THREE.WebGLRenderer: image is too big (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height, image );

			return canvas;

		}

		return image;

	}

	function isPowerOfTwo( image ) {

		return THREE.Math.isPowerOfTwo( image.width ) && THREE.Math.isPowerOfTwo( image.height );

	}

	function textureNeedsPowerOfTwo( texture ) {

		if ( texture.wrapS !== THREE.ClampToEdgeWrapping || texture.wrapT !== THREE.ClampToEdgeWrapping ) return true;
		if ( texture.minFilter !== THREE.NearestFilter && texture.minFilter !== THREE.LinearFilter ) return true;

		return false;

	}

	function makePowerOfTwo( image ) {

		if ( image instanceof HTMLImageElement || image instanceof HTMLCanvasElement ) {

			var canvas = document.createElement( 'canvas' );
			canvas.width = THREE.Math.nearestPowerOfTwo( image.width );
			canvas.height = THREE.Math.nearestPowerOfTwo( image.height );

			var context = canvas.getContext( '2d' );
			context.drawImage( image, 0, 0, canvas.width, canvas.height );

			console.warn( 'THREE.WebGLRenderer: image is not power of two (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height, image );

			return canvas;

		}

		return image;

	}

	function setCubeTexture ( texture, slot ) {

		var textureProperties = properties.get( texture );

		if ( texture.image.length === 6 ) {

			if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

				if ( ! textureProperties.__image__webglTextureCube ) {

					texture.addEventListener( 'dispose', onTextureDispose );

					textureProperties.__image__webglTextureCube = _gl.createTexture();

					_infoMemory.textures ++;

				}

				state.activeTexture( _gl.TEXTURE0 + slot );
				state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );

				_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );

				var isCompressed = texture instanceof THREE.CompressedTexture;
				var isDataTexture = texture.image[ 0 ] instanceof THREE.DataTexture;

				var cubeImage = [];

				for ( var i = 0; i < 6; i ++ ) {

					if ( _this.autoScaleCubemaps && ! isCompressed && ! isDataTexture ) {

						cubeImage[ i ] = clampToMaxSize( texture.image[ i ], capabilities.maxCubemapSize );

					} else {

						cubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ];

					}

				}

				var image = cubeImage[ 0 ],
				isImagePowerOfTwo = isPowerOfTwo( image ),
				glFormat = paramThreeToGL( texture.format ),
				glType = paramThreeToGL( texture.type );

				setTextureParameters( _gl.TEXTURE_CUBE_MAP, texture, isImagePowerOfTwo );

				for ( var i = 0; i < 6; i ++ ) {

					if ( ! isCompressed ) {

						if ( isDataTexture ) {

							state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data );

						} else {

							state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glFormat, glFormat, glType, cubeImage[ i ] );

						}

					} else {

						var mipmap, mipmaps = cubeImage[ i ].mipmaps;

						for ( var j = 0, jl = mipmaps.length; j < jl; j ++ ) {

							mipmap = mipmaps[ j ];

							if ( texture.format !== THREE.RGBAFormat && texture.format !== THREE.RGBFormat ) {

								if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {

									state.compressedTexImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glFormat, mipmap.width, mipmap.height, 0, mipmap.data );

								} else {

									console.warn( "THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setCubeTexture()" );

								}

							} else {

								state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

							}

						}

					}

				}

				if ( texture.generateMipmaps && isImagePowerOfTwo ) {

					_gl.generateMipmap( _gl.TEXTURE_CUBE_MAP );

				}

				textureProperties.__version = texture.version;

				if ( texture.onUpdate ) texture.onUpdate( texture );

			} else {

				state.activeTexture( _gl.TEXTURE0 + slot );
				state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );

			}

		}

	}

	function setCubeTextureDynamic ( texture, slot ) {

		state.activeTexture( _gl.TEXTURE0 + slot );
		state.bindTexture( _gl.TEXTURE_CUBE_MAP, properties.get( texture ).__webglTexture );

	}

	// Render targets

	// Setup storage for target texture and bind it to correct framebuffer
	function setupFrameBufferTexture ( framebuffer, renderTarget, attachment, textureTarget ) {

		var glFormat = paramThreeToGL( renderTarget.texture.format );
		var glType = paramThreeToGL( renderTarget.texture.type );
		state.texImage2D( textureTarget, 0, glFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null );
		_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
		_gl.framebufferTexture2D( _gl.FRAMEBUFFER, attachment, textureTarget, properties.get( renderTarget.texture ).__webglTexture, 0 );
		_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );

	}

	// Setup storage for internal depth/stencil buffers and bind to correct framebuffer
	function setupRenderBufferStorage ( renderbuffer, renderTarget ) {

		_gl.bindRenderbuffer( _gl.RENDERBUFFER, renderbuffer );

		if ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) {

			_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_COMPONENT16, renderTarget.width, renderTarget.height );
			_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );

		} else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) {

			_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_STENCIL, renderTarget.width, renderTarget.height );
			_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );

		} else {

			// FIXME: We don't support !depth !stencil
			_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.RGBA4, renderTarget.width, renderTarget.height );

		}

		_gl.bindRenderbuffer( _gl.RENDERBUFFER, null );

	}

	// Setup GL resources for a non-texture depth buffer
	function setupDepthRenderbuffer( renderTarget ) {

		var renderTargetProperties = properties.get( renderTarget );

		var isCube = ( renderTarget instanceof THREE.WebGLRenderTargetCube );

		if ( isCube ) {

			renderTargetProperties.__webglDepthbuffer = [];

			for ( var i = 0; i < 6; i ++ ) {

				_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer[ i ] );
				renderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer();
				setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget );

			}

		} else {

			_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer );
			renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
			setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget );

		}

		_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );

	}

	// Set up GL resources for the render target
	function setupRenderTarget( renderTarget ) {

		var renderTargetProperties = properties.get( renderTarget );
		var textureProperties = properties.get( renderTarget.texture );

		renderTarget.addEventListener( 'dispose', onRenderTargetDispose );

		textureProperties.__webglTexture = _gl.createTexture();

		_infoMemory.textures ++;

		var isCube = ( renderTarget instanceof THREE.WebGLRenderTargetCube );
		var isTargetPowerOfTwo = THREE.Math.isPowerOfTwo( renderTarget.width ) && THREE.Math.isPowerOfTwo( renderTarget.height );

		// Setup framebuffer

		if ( isCube ) {

			renderTargetProperties.__webglFramebuffer = [];

			for ( var i = 0; i < 6; i ++ ) {

				renderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer();

			}

		} else {

			renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();

		}

		// Setup color buffer

		if ( isCube ) {

			state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture );
			setTextureParameters( _gl.TEXTURE_CUBE_MAP, renderTarget.texture, isTargetPowerOfTwo );

			for ( var i = 0; i < 6; i ++ ) {

				setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i );

			}

			if ( renderTarget.texture.generateMipmaps && isTargetPowerOfTwo ) _gl.generateMipmap( _gl.TEXTURE_CUBE_MAP );
			state.bindTexture( _gl.TEXTURE_CUBE_MAP, null );

		} else {

			state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );
			setTextureParameters( _gl.TEXTURE_2D, renderTarget.texture, isTargetPowerOfTwo );
			setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D );

			if ( renderTarget.texture.generateMipmaps && isTargetPowerOfTwo ) _gl.generateMipmap( _gl.TEXTURE_2D );
			state.bindTexture( _gl.TEXTURE_2D, null );

		}

		// Setup depth and stencil buffers

		if ( renderTarget.depthBuffer ) {

			setupDepthRenderbuffer( renderTarget );

		}

	}

	this.setRenderTarget = function ( renderTarget ) {

		_currentRenderTarget = renderTarget;

		if ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) {

			setupRenderTarget( renderTarget );

		}

		var isCube = ( renderTarget instanceof THREE.WebGLRenderTargetCube );
		var framebuffer, scissor, scissorTest, viewport;

		if ( renderTarget ) {

			var renderTargetProperties = properties.get( renderTarget );

			if ( isCube ) {

				framebuffer = renderTargetProperties.__webglFramebuffer[ renderTarget.activeCubeFace ];

			} else {

				framebuffer = renderTargetProperties.__webglFramebuffer;

			}

			scissor = renderTarget.scissor;
			scissorTest = renderTarget.scissorTest;

			viewport = renderTarget.viewport;

		} else {

			framebuffer = null;

			scissor = _scissor;
			scissorTest = _scissorTest;

			viewport = _viewport;

		}

		if ( framebuffer !== _currentFramebuffer ) {

			_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );

			_currentFramebuffer = framebuffer;

		}

		state.scissor( scissor );
		state.setScissorTest( scissorTest );

		state.viewport( viewport );

		if ( isCube ) {

			var textureProperties = properties.get( renderTarget.texture );
			_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + renderTarget.activeCubeFace, textureProperties.__webglTexture, 0 );

		}

		_currentViewport = viewport;

	};

	this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer ) {

		if ( renderTarget instanceof THREE.WebGLRenderTarget === false ) {

			console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );
			return;

		}

		var framebuffer = properties.get( renderTarget ).__webglFramebuffer;

		if ( framebuffer ) {

			var restore = false;

			if ( framebuffer !== _currentFramebuffer ) {

				_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );

				restore = true;

			}

			try {

				var texture = renderTarget.texture;

				if ( texture.format !== THREE.RGBAFormat
					&& paramThreeToGL( texture.format ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_FORMAT ) ) {

					console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );
					return;

				}

				if ( texture.type !== THREE.UnsignedByteType
					&& paramThreeToGL( texture.type ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_TYPE )
					&& ! ( texture.type === THREE.FloatType && extensions.get( 'WEBGL_color_buffer_float' ) )
					&& ! ( texture.type === THREE.HalfFloatType && extensions.get( 'EXT_color_buffer_half_float' ) ) ) {

					console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );
					return;

				}

				if ( _gl.checkFramebufferStatus( _gl.FRAMEBUFFER ) === _gl.FRAMEBUFFER_COMPLETE ) {

					_gl.readPixels( x, y, width, height, paramThreeToGL( texture.format ), paramThreeToGL( texture.type ), buffer );

				} else {

					console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' );

				}

			} finally {

				if ( restore ) {

					_gl.bindFramebuffer( _gl.FRAMEBUFFER, _currentFramebuffer );

				}

			}

		}

	};

	function updateRenderTargetMipmap( renderTarget ) {

		var target = renderTarget instanceof THREE.WebGLRenderTargetCube ? _gl.TEXTURE_CUBE_MAP : _gl.TEXTURE_2D;
		var texture = properties.get( renderTarget.texture ).__webglTexture;

		state.bindTexture( target, texture );
		_gl.generateMipmap( target );
		state.bindTexture( target, null );

	}

	// Fallback filters for non-power-of-2 textures

	function filterFallback ( f ) {

		if ( f === THREE.NearestFilter || f === THREE.NearestMipMapNearestFilter || f === THREE.NearestMipMapLinearFilter ) {

			return _gl.NEAREST;

		}

		return _gl.LINEAR;

	}

	// Map three.js constants to WebGL constants

	function paramThreeToGL ( p ) {

		var extension;

		if ( p === THREE.RepeatWrapping ) return _gl.REPEAT;
		if ( p === THREE.ClampToEdgeWrapping ) return _gl.CLAMP_TO_EDGE;
		if ( p === THREE.MirroredRepeatWrapping ) return _gl.MIRRORED_REPEAT;

		if ( p === THREE.NearestFilter ) return _gl.NEAREST;
		if ( p === THREE.NearestMipMapNearestFilter ) return _gl.NEAREST_MIPMAP_NEAREST;
		if ( p === THREE.NearestMipMapLinearFilter ) return _gl.NEAREST_MIPMAP_LINEAR;

		if ( p === THREE.LinearFilter ) return _gl.LINEAR;
		if ( p === THREE.LinearMipMapNearestFilter ) return _gl.LINEAR_MIPMAP_NEAREST;
		if ( p === THREE.LinearMipMapLinearFilter ) return _gl.LINEAR_MIPMAP_LINEAR;

		if ( p === THREE.UnsignedByteType ) return _gl.UNSIGNED_BYTE;
		if ( p === THREE.UnsignedShort4444Type ) return _gl.UNSIGNED_SHORT_4_4_4_4;
		if ( p === THREE.UnsignedShort5551Type ) return _gl.UNSIGNED_SHORT_5_5_5_1;
		if ( p === THREE.UnsignedShort565Type ) return _gl.UNSIGNED_SHORT_5_6_5;

		if ( p === THREE.ByteType ) return _gl.BYTE;
		if ( p === THREE.ShortType ) return _gl.SHORT;
		if ( p === THREE.UnsignedShortType ) return _gl.UNSIGNED_SHORT;
		if ( p === THREE.IntType ) return _gl.INT;
		if ( p === THREE.UnsignedIntType ) return _gl.UNSIGNED_INT;
		if ( p === THREE.FloatType ) return _gl.FLOAT;

		extension = extensions.get( 'OES_texture_half_float' );

		if ( extension !== null ) {

			if ( p === THREE.HalfFloatType ) return extension.HALF_FLOAT_OES;

		}

		if ( p === THREE.AlphaFormat ) return _gl.ALPHA;
		if ( p === THREE.RGBFormat ) return _gl.RGB;
		if ( p === THREE.RGBAFormat ) return _gl.RGBA;
		if ( p === THREE.LuminanceFormat ) return _gl.LUMINANCE;
		if ( p === THREE.LuminanceAlphaFormat ) return _gl.LUMINANCE_ALPHA;

		if ( p === THREE.AddEquation ) return _gl.FUNC_ADD;
		if ( p === THREE.SubtractEquation ) return _gl.FUNC_SUBTRACT;
		if ( p === THREE.ReverseSubtractEquation ) return _gl.FUNC_REVERSE_SUBTRACT;

		if ( p === THREE.ZeroFactor ) return _gl.ZERO;
		if ( p === THREE.OneFactor ) return _gl.ONE;
		if ( p === THREE.SrcColorFactor ) return _gl.SRC_COLOR;
		if ( p === THREE.OneMinusSrcColorFactor ) return _gl.ONE_MINUS_SRC_COLOR;
		if ( p === THREE.SrcAlphaFactor ) return _gl.SRC_ALPHA;
		if ( p === THREE.OneMinusSrcAlphaFactor ) return _gl.ONE_MINUS_SRC_ALPHA;
		if ( p === THREE.DstAlphaFactor ) return _gl.DST_ALPHA;
		if ( p === THREE.OneMinusDstAlphaFactor ) return _gl.ONE_MINUS_DST_ALPHA;

		if ( p === THREE.DstColorFactor ) return _gl.DST_COLOR;
		if ( p === THREE.OneMinusDstColorFactor ) return _gl.ONE_MINUS_DST_COLOR;
		if ( p === THREE.SrcAlphaSaturateFactor ) return _gl.SRC_ALPHA_SATURATE;

		extension = extensions.get( 'WEBGL_compressed_texture_s3tc' );

		if ( extension !== null ) {

			if ( p === THREE.RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
			if ( p === THREE.RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
			if ( p === THREE.RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
			if ( p === THREE.RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;

		}

		extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );

		if ( extension !== null ) {

			if ( p === THREE.RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
			if ( p === THREE.RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
			if ( p === THREE.RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
			if ( p === THREE.RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;

		}

		extension = extensions.get( 'EXT_blend_minmax' );

		if ( extension !== null ) {

			if ( p === THREE.MinEquation ) return extension.MIN_EXT;
			if ( p === THREE.MaxEquation ) return extension.MAX_EXT;

		}

		return 0;

	}

};

// File:src/renderers/WebGLRenderTarget.js

/**
 * @author szimek / https://github.com/szimek/
 * @author alteredq / http://alteredqualia.com/
 * @author Marius Kintel / https://github.com/kintel
 */

/*
 In options, we can specify:
 * Texture parameters for an auto-generated target texture
 * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
*/
THREE.WebGLRenderTarget = function ( width, height, options ) {

	this.uuid = THREE.Math.generateUUID();

	this.width = width;
	this.height = height;

	this.scissor = new THREE.Vector4( 0, 0, width, height );
	this.scissorTest = false;

	this.viewport = new THREE.Vector4( 0, 0, width, height );

	options = options || {};

	if ( options.minFilter === undefined ) options.minFilter = THREE.LinearFilter;

	this.texture = new THREE.Texture( undefined, undefined, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy );

	this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
	this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : true;

};

THREE.WebGLRenderTarget.prototype = {

	constructor: THREE.WebGLRenderTarget,

	setSize: function ( width, height ) {

		if ( this.width !== width || this.height !== height ) {

			this.width = width;
			this.height = height;

			this.dispose();

		}

		this.viewport.set( 0, 0, width, height );
		this.scissor.set( 0, 0, width, height );

	},

	clone: function () {

		return new this.constructor().copy( this );

	},

	copy: function ( source ) {

		this.width = source.width;
		this.height = source.height;

		this.viewport.copy( source.viewport );

		this.texture = source.texture.clone();

		this.depthBuffer = source.depthBuffer;
		this.stencilBuffer = source.stencilBuffer;

		this.shareDepthFrom = source.shareDepthFrom;

		return this;

	},

	dispose: function () {

		this.dispatchEvent( { type: 'dispose' } );

	}

};

THREE.EventDispatcher.prototype.apply( THREE.WebGLRenderTarget.prototype );

// File:src/renderers/WebGLRenderTargetCube.js

/**
 * @author alteredq / http://alteredqualia.com
 */

THREE.WebGLRenderTargetCube = function ( width, height, options ) {

	THREE.WebGLRenderTarget.call( this, width, height, options );

	this.activeCubeFace = 0; // PX 0, NX 1, PY 2, NY 3, PZ 4, NZ 5

};

THREE.WebGLRenderTargetCube.prototype = Object.create( THREE.WebGLRenderTarget.prototype );
THREE.WebGLRenderTargetCube.prototype.constructor = THREE.WebGLRenderTargetCube;

// File:src/renderers/webgl/WebGLBufferRenderer.js

/**
* @author mrdoob / http://mrdoob.com/
*/

THREE.WebGLBufferRenderer = function ( _gl, extensions, _infoRender ) {

	var mode;

	function setMode( value ) {

		mode = value;

	}

	function render( start, count ) {

		_gl.drawArrays( mode, start, count );

		_infoRender.calls ++;
		_infoRender.vertices += count;
		if ( mode === _gl.TRIANGLES ) _infoRender.faces += count / 3;

	}

	function renderInstances( geometry ) {

		var extension = extensions.get( 'ANGLE_instanced_arrays' );

		if ( extension === null ) {

			console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
			return;

		}

		var position = geometry.attributes.position;

		if ( position instanceof THREE.InterleavedBufferAttribute ) {

			extension.drawArraysInstancedANGLE( mode, 0, position.data.count, geometry.maxInstancedCount );

		} else {

			extension.drawArraysInstancedANGLE( mode, 0, position.count, geometry.maxInstancedCount );

		}

	}

	this.setMode = setMode;
	this.render = render;
	this.renderInstances = renderInstances;

};

// File:src/renderers/webgl/WebGLIndexedBufferRenderer.js

/**
* @author mrdoob / http://mrdoob.com/
*/

THREE.WebGLIndexedBufferRenderer = function ( _gl, extensions, _infoRender ) {

	var mode;

	function setMode( value ) {

		mode = value;

	}

	var type, size;

	function setIndex( index ) {

		if ( index.array instanceof Uint32Array && extensions.get( 'OES_element_index_uint' ) ) {

			type = _gl.UNSIGNED_INT;
			size = 4;

		} else {

			type = _gl.UNSIGNED_SHORT;
			size = 2;

		}

	}

	function render( start, count ) {

		_gl.drawElements( mode, count, type, start * size );

		_infoRender.calls ++;
		_infoRender.vertices += count;
		if ( mode === _gl.TRIANGLES ) _infoRender.faces += count / 3;

	}

	function renderInstances( geometry, start, count ) {

		var extension = extensions.get( 'ANGLE_instanced_arrays' );

		if ( extension === null ) {

			console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
			return;

		}

		extension.drawElementsInstancedANGLE( mode, count, type, start * size, geometry.maxInstancedCount );

	}

	this.setMode = setMode;
	this.setIndex = setIndex;
	this.render = render;
	this.renderInstances = renderInstances;

};

// File:src/renderers/webgl/WebGLExtensions.js

/**
* @author mrdoob / http://mrdoob.com/
*/

THREE.WebGLExtensions = function ( gl ) {

	var extensions = {};

	this.get = function ( name ) {

		if ( extensions[ name ] !== undefined ) {

			return extensions[ name ];

		}

		var extension;

		switch ( name ) {

			case 'EXT_texture_filter_anisotropic':
				extension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' );
				break;

			case 'WEBGL_compressed_texture_s3tc':
				extension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' );
				break;

			case 'WEBGL_compressed_texture_pvrtc':
				extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );
				break;

			default:
				extension = gl.getExtension( name );

		}

		if ( extension === null ) {

			console.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' );

		}

		extensions[ name ] = extension;

		return extension;

	};

};

// File:src/renderers/webgl/WebGLCapabilities.js

THREE.WebGLCapabilities = function ( gl, extensions, parameters ) {

	function getMaxPrecision( precision ) {

		if ( precision === 'highp' ) {

			if ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.HIGH_FLOAT ).precision > 0 &&
			     gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.HIGH_FLOAT ).precision > 0 ) {

				return 'highp';

			}

			precision = 'mediump';

		}

		if ( precision === 'mediump' ) {

			if ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.MEDIUM_FLOAT ).precision > 0 &&
			     gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.MEDIUM_FLOAT ).precision > 0 ) {

				return 'mediump';

			}

		}

		return 'lowp';

	}

	this.getMaxPrecision = getMaxPrecision;

	this.precision = parameters.precision !== undefined ? parameters.precision : 'highp',
	this.logarithmicDepthBuffer = parameters.logarithmicDepthBuffer !== undefined ? parameters.logarithmicDepthBuffer : false;

	this.maxTextures = gl.getParameter( gl.MAX_TEXTURE_IMAGE_UNITS );
	this.maxVertexTextures = gl.getParameter( gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS );
	this.maxTextureSize = gl.getParameter( gl.MAX_TEXTURE_SIZE );
	this.maxCubemapSize = gl.getParameter( gl.MAX_CUBE_MAP_TEXTURE_SIZE );

	this.maxAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );
	this.maxVertexUniforms = gl.getParameter( gl.MAX_VERTEX_UNIFORM_VECTORS );
	this.maxVaryings = gl.getParameter( gl.MAX_VARYING_VECTORS );
	this.maxFragmentUniforms = gl.getParameter( gl.MAX_FRAGMENT_UNIFORM_VECTORS );

	this.vertexTextures = this.maxVertexTextures > 0;
	this.floatFragmentTextures = !! extensions.get( 'OES_texture_float' );
	this.floatVertexTextures = this.vertexTextures && this.floatFragmentTextures;

	var _maxPrecision = getMaxPrecision( this.precision );

	if ( _maxPrecision !== this.precision ) {

		console.warn( 'THREE.WebGLRenderer:', this.precision, 'not supported, using', _maxPrecision, 'instead.' );
		this.precision = _maxPrecision;

	}

	if ( this.logarithmicDepthBuffer ) {

		this.logarithmicDepthBuffer = !! extensions.get( 'EXT_frag_depth' );

	}

};

// File:src/renderers/webgl/WebGLGeometries.js

/**
* @author mrdoob / http://mrdoob.com/
*/

THREE.WebGLGeometries = function ( gl, properties, info ) {

	var geometries = {};

	function get( object ) {

		var geometry = object.geometry;

		if ( geometries[ geometry.id ] !== undefined ) {

			return geometries[ geometry.id ];

		}

		geometry.addEventListener( 'dispose', onGeometryDispose );

		var buffergeometry;

		if ( geometry instanceof THREE.BufferGeometry ) {

			buffergeometry = geometry;

		} else if ( geometry instanceof THREE.Geometry ) {

			if ( geometry._bufferGeometry === undefined ) {

				geometry._bufferGeometry = new THREE.BufferGeometry().setFromObject( object );

			}

			buffergeometry = geometry._bufferGeometry;

		}

		geometries[ geometry.id ] = buffergeometry;

		info.memory.geometries ++;

		return buffergeometry;

	}

	function onGeometryDispose( event ) {

		var geometry = event.target;
		var buffergeometry = geometries[ geometry.id ];

		if ( buffergeometry.index !== null ) {

			deleteAttribute( buffergeometry.index );

		}

		deleteAttributes( buffergeometry.attributes );

		geometry.removeEventListener( 'dispose', onGeometryDispose );

		delete geometries[ geometry.id ];

		// TODO

		var property = properties.get( geometry );

		if ( property.wireframe ) {

			deleteAttribute( property.wireframe );

		}

		properties.delete( geometry );

		var bufferproperty = properties.get( buffergeometry );

		if ( bufferproperty.wireframe ) {

			deleteAttribute( bufferproperty.wireframe );

		}

		properties.delete( buffergeometry );

		//

		info.memory.geometries --;

	}

	function getAttributeBuffer( attribute ) {

		if ( attribute instanceof THREE.InterleavedBufferAttribute ) {

			return properties.get( attribute.data ).__webglBuffer;

		}

		return properties.get( attribute ).__webglBuffer;

	}

	function deleteAttribute( attribute ) {

		var buffer = getAttributeBuffer( attribute );

		if ( buffer !== undefined ) {

			gl.deleteBuffer( buffer );
			removeAttributeBuffer( attribute );

		}

	}

	function deleteAttributes( attributes ) {

		for ( var name in attributes ) {

			deleteAttribute( attributes[ name ] );

		}

	}

	function removeAttributeBuffer( attribute ) {

		if ( attribute instanceof THREE.InterleavedBufferAttribute ) {

			properties.delete( attribute.data );

		} else {

			properties.delete( attribute );

		}

	}

	this.get = get;

};

// File:src/renderers/webgl/WebGLLights.js

/**
* @author mrdoob / http://mrdoob.com/
*/

THREE.WebGLLights = function () {

	var lights = {};

	this.get = function ( light ) {

		if ( lights[ light.id ] !== undefined ) {

			return lights[ light.id ];

		}

		var uniforms;

		switch ( light.type ) {

			case 'HemisphereLight':
				uniforms = {
					direction: new THREE.Vector3(),
					skyColor: new THREE.Color(),
					groundColor: new THREE.Color()
				};
				break;

			case 'DirectionalLight':
				uniforms = {
					direction: new THREE.Vector3(),
					color: new THREE.Color(),
					shadow: -1
				};
				break;

			case 'PointLight':
				uniforms = {
					position: new THREE.Vector3(),
					color: new THREE.Color(),
					distance: 0,
					decay: 0,
					shadow: -1
				};
				break;

			case 'SpotLight':
				uniforms = {
					position: new THREE.Vector3(),
					direction: new THREE.Vector3(),
					color: new THREE.Color(),
					distance: 0,
					angleCos: 0,
					exponent: 0,
					decay: 0,
					shadow: -1
				};
				break;

		}

		lights[ light.id ] = uniforms;

		return uniforms;

	};

};

// File:src/renderers/webgl/WebGLObjects.js

/**
* @author mrdoob / http://mrdoob.com/
*/

THREE.WebGLObjects = function ( gl, properties, info ) {

	var geometries = new THREE.WebGLGeometries( gl, properties, info );

	//

	function update( object ) {

		// TODO: Avoid updating twice (when using shadowMap). Maybe add frame counter.

		var geometry = geometries.get( object );

		if ( object.geometry instanceof THREE.Geometry ) {

			geometry.updateFromObject( object );

		}

		var index = geometry.index;
		var attributes = geometry.attributes;

		if ( index !== null ) {

			updateAttribute( index, gl.ELEMENT_ARRAY_BUFFER );

		}

		for ( var name in attributes ) {

			updateAttribute( attributes[ name ], gl.ARRAY_BUFFER );

		}

		// morph targets

		var morphAttributes = geometry.morphAttributes;

		for ( var name in morphAttributes ) {

			var array = morphAttributes[ name ];

			for ( var i = 0, l = array.length; i < l; i ++ ) {

				updateAttribute( array[ i ], gl.ARRAY_BUFFER );

			}

		}

		return geometry;

	}

	function updateAttribute( attribute, bufferType ) {

		var data = ( attribute instanceof THREE.InterleavedBufferAttribute ) ? attribute.data : attribute;

		var attributeProperties = properties.get( data );

		if ( attributeProperties.__webglBuffer === undefined ) {

			createBuffer( attributeProperties, data, bufferType );

		} else if ( attributeProperties.version !== data.version ) {

			updateBuffer( attributeProperties, data, bufferType );

		}

	}

	function createBuffer( attributeProperties, data, bufferType ) {

		attributeProperties.__webglBuffer = gl.createBuffer();
		gl.bindBuffer( bufferType, attributeProperties.__webglBuffer );

		var usage = data.dynamic ? gl.DYNAMIC_DRAW : gl.STATIC_DRAW;

		gl.bufferData( bufferType, data.array, usage );

		attributeProperties.version = data.version;

	}

	function updateBuffer( attributeProperties, data, bufferType ) {

		gl.bindBuffer( bufferType, attributeProperties.__webglBuffer );

		if ( data.dynamic === false || data.updateRange.count === - 1 ) {

			// Not using update ranges

			gl.bufferSubData( bufferType, 0, data.array );

		} else if ( data.updateRange.count === 0 ) {

			console.error( 'THREE.WebGLObjects.updateBuffer: dynamic THREE.BufferAttribute marked as needsUpdate but updateRange.count is 0, ensure you are using set methods or updating manually.' );

		} else {

			gl.bufferSubData( bufferType, data.updateRange.offset * data.array.BYTES_PER_ELEMENT,
							  data.array.subarray( data.updateRange.offset, data.updateRange.offset + data.updateRange.count ) );

			data.updateRange.count = 0; // reset range

		}

		attributeProperties.version = data.version;

	}

	function getAttributeBuffer( attribute ) {

		if ( attribute instanceof THREE.InterleavedBufferAttribute ) {

			return properties.get( attribute.data ).__webglBuffer;

		}

		return properties.get( attribute ).__webglBuffer;

	}

	function getWireframeAttribute( geometry ) {

		var property = properties.get( geometry );

		if ( property.wireframe !== undefined ) {

			return property.wireframe;

		}

		var indices = [];

		var index = geometry.index;
		var attributes = geometry.attributes;
		var position = attributes.position;

		// console.time( 'wireframe' );

		if ( index !== null ) {

			var edges = {};
			var array = index.array;

			for ( var i = 0, l = array.length; i < l; i += 3 ) {

				var a = array[ i + 0 ];
				var b = array[ i + 1 ];
				var c = array[ i + 2 ];

				if ( checkEdge( edges, a, b ) ) indices.push( a, b );
				if ( checkEdge( edges, b, c ) ) indices.push( b, c );
				if ( checkEdge( edges, c, a ) ) indices.push( c, a );

			}

		} else {

			var array = attributes.position.array;

			for ( var i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {

				var a = i + 0;
				var b = i + 1;
				var c = i + 2;

				indices.push( a, b, b, c, c, a );

			}

		}

		// console.timeEnd( 'wireframe' );

		var TypeArray = position.count > 65535 ? Uint32Array : Uint16Array;
		var attribute = new THREE.BufferAttribute( new TypeArray( indices ), 1 );

		updateAttribute( attribute, gl.ELEMENT_ARRAY_BUFFER );

		property.wireframe = attribute;

		return attribute;

	}

	function checkEdge( edges, a, b ) {

		if ( a > b ) {

			var tmp = a;
			a = b;
			b = tmp;

		}

		var list = edges[ a ];

		if ( list === undefined ) {

			edges[ a ] = [ b ];
			return true;

		} else if ( list.indexOf( b ) === -1 ) {

			list.push( b );
			return true;

		}

		return false;

	}

	this.getAttributeBuffer = getAttributeBuffer;
	this.getWireframeAttribute = getWireframeAttribute;

	this.update = update;

};

// File:src/renderers/webgl/WebGLProgram.js

THREE.WebGLProgram = ( function () {

	var programIdCount = 0;

	// TODO: Combine the regex
	var structRe = /^([\w\d_]+)\.([\w\d_]+)$/;
	var arrayStructRe = /^([\w\d_]+)\[(\d+)\]\.([\w\d_]+)$/;
	var arrayRe = /^([\w\d_]+)\[0\]$/;

	function generateExtensions( extensions, parameters, rendererExtensions ) {

		extensions = extensions || {};

		var chunks = [
			( extensions.derivatives || parameters.bumpMap || parameters.normalMap || parameters.flatShading ) ? '#extension GL_OES_standard_derivatives : enable' : '',
			( extensions.fragDepth || parameters.logarithmicDepthBuffer ) && rendererExtensions.get( 'EXT_frag_depth' ) ? '#extension GL_EXT_frag_depth : enable' : '',
			( extensions.drawBuffers ) && rendererExtensions.get( 'WEBGL_draw_buffers' ) ? '#extension GL_EXT_draw_buffers : require' : '',
			( extensions.shaderTextureLOD || parameters.envMap ) && rendererExtensions.get( 'EXT_shader_texture_lod' ) ? '#extension GL_EXT_shader_texture_lod : enable' : '',
		];

		return chunks.filter( filterEmptyLine ).join( '\n' );

	}

	function generateDefines( defines ) {

		var chunks = [];

		for ( var name in defines ) {

			var value = defines[ name ];

			if ( value === false ) continue;

			chunks.push( '#define ' + name + ' ' + value );

		}

		return chunks.join( '\n' );

	}

	function fetchUniformLocations( gl, program, identifiers ) {

		var uniforms = {};

		var n = gl.getProgramParameter( program, gl.ACTIVE_UNIFORMS );

		for ( var i = 0; i < n; i ++ ) {

			var info = gl.getActiveUniform( program, i );
			var name = info.name;
			var location = gl.getUniformLocation( program, name );

			//console.log("THREE.WebGLProgram: ACTIVE UNIFORM:", name);

			var matches = structRe.exec( name );
			if ( matches ) {

				var structName = matches[ 1 ];
				var structProperty = matches[ 2 ];

				var uniformsStruct = uniforms[ structName ];

				if ( ! uniformsStruct ) {

					uniformsStruct = uniforms[ structName ] = {};

				}

				uniformsStruct[ structProperty ] = location;

				continue;

			}

			matches = arrayStructRe.exec( name );

			if ( matches ) {

				var arrayName = matches[ 1 ];
				var arrayIndex = matches[ 2 ];
				var arrayProperty = matches[ 3 ];

				var uniformsArray = uniforms[ arrayName ];

				if ( ! uniformsArray ) {

					uniformsArray = uniforms[ arrayName ] = [];

				}

				var uniformsArrayIndex = uniformsArray[ arrayIndex ];

				if ( ! uniformsArrayIndex ) {

					uniformsArrayIndex = uniformsArray[ arrayIndex ] = {};

				}

				uniformsArrayIndex[ arrayProperty ] = location;

				continue;

			}

			matches = arrayRe.exec( name );

			if ( matches ) {

				var arrayName = matches[ 1 ];

				uniforms[ arrayName ] = location;

				continue;

			}

			uniforms[ name ] = location;

		}

		return uniforms;

	}

	function fetchAttributeLocations( gl, program, identifiers ) {

		var attributes = {};

		var n = gl.getProgramParameter( program, gl.ACTIVE_ATTRIBUTES );

		for ( var i = 0; i < n; i ++ ) {

			var info = gl.getActiveAttrib( program, i );
			var name = info.name;

			// console.log("THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:", name, i );

			attributes[ name ] = gl.getAttribLocation( program, name );

		}

		return attributes;

	}

	function filterEmptyLine( string ) {

		return string !== '';

	}

	return function WebGLProgram( renderer, code, material, parameters ) {

		var gl = renderer.context;

		var extensions = material.extensions;
		var defines = material.defines;

		var vertexShader = material.__webglShader.vertexShader;
		var fragmentShader = material.__webglShader.fragmentShader;

		var shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';

		if ( parameters.shadowMapType === THREE.PCFShadowMap ) {

			shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';

		} else if ( parameters.shadowMapType === THREE.PCFSoftShadowMap ) {

			shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';

		}

		var envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
		var envMapModeDefine = 'ENVMAP_MODE_REFLECTION';
		var envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';

		if ( parameters.envMap ) {

			switch ( material.envMap.mapping ) {

				case THREE.CubeReflectionMapping:
				case THREE.CubeRefractionMapping:
					envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
					break;

				case THREE.EquirectangularReflectionMapping:
				case THREE.EquirectangularRefractionMapping:
					envMapTypeDefine = 'ENVMAP_TYPE_EQUIREC';
					break;

				case THREE.SphericalReflectionMapping:
					envMapTypeDefine = 'ENVMAP_TYPE_SPHERE';
					break;

			}

			switch ( material.envMap.mapping ) {

				case THREE.CubeRefractionMapping:
				case THREE.EquirectangularRefractionMapping:
					envMapModeDefine = 'ENVMAP_MODE_REFRACTION';
					break;

			}

			switch ( material.combine ) {

				case THREE.MultiplyOperation:
					envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
					break;

				case THREE.MixOperation:
					envMapBlendingDefine = 'ENVMAP_BLENDING_MIX';
					break;

				case THREE.AddOperation:
					envMapBlendingDefine = 'ENVMAP_BLENDING_ADD';
					break;

			}

		}

		var gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0;

		// console.log( 'building new program ' );

		//

		var customExtensions = generateExtensions( extensions, parameters, renderer.extensions );

		var customDefines = generateDefines( defines );

		//

		var program = gl.createProgram();

		var prefixVertex, prefixFragment;

		if ( material instanceof THREE.RawShaderMaterial ) {

			prefixVertex = '';
			prefixFragment = '';

		} else {

			prefixVertex = [

				'precision ' + parameters.precision + ' float;',
				'precision ' + parameters.precision + ' int;',

				'#define SHADER_NAME ' + material.__webglShader.name,

				customDefines,

				parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '',

				renderer.gammaInput ? '#define GAMMA_INPUT' : '',
				renderer.gammaOutput ? '#define GAMMA_OUTPUT' : '',
				'#define GAMMA_FACTOR ' + gammaFactorDefine,

				'#define NUM_DIR_LIGHTS ' + parameters.numDirLights,
				'#define NUM_POINT_LIGHTS ' + parameters.numPointLights,
				'#define NUM_SPOT_LIGHTS ' + parameters.numSpotLights,
				'#define NUM_HEMI_LIGHTS ' + parameters.numHemiLights,

				'#define NUM_SHADOWS ' + parameters.numShadows,

				'#define MAX_BONES ' + parameters.maxBones,

				parameters.map ? '#define USE_MAP' : '',
				parameters.envMap ? '#define USE_ENVMAP' : '',
				parameters.envMap ? '#define ' + envMapModeDefine : '',
				parameters.lightMap ? '#define USE_LIGHTMAP' : '',
				parameters.aoMap ? '#define USE_AOMAP' : '',
				parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
				parameters.bumpMap ? '#define USE_BUMPMAP' : '',
				parameters.normalMap ? '#define USE_NORMALMAP' : '',
				parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '',
				parameters.specularMap ? '#define USE_SPECULARMAP' : '',
				parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
				parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
				parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
				parameters.vertexColors ? '#define USE_COLOR' : '',

				parameters.flatShading ? '#define FLAT_SHADED' : '',

				parameters.skinning ? '#define USE_SKINNING' : '',
				parameters.useVertexTexture ? '#define BONE_TEXTURE' : '',

				parameters.morphTargets ? '#define USE_MORPHTARGETS' : '',
				parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '',
				parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
				parameters.flipSided ? '#define FLIP_SIDED' : '',

				parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
				parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',
				parameters.shadowMapDebug ? '#define SHADOWMAP_DEBUG' : '',
				parameters.pointLightShadows > 0 ? '#define POINT_LIGHT_SHADOWS' : '',

				parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '',

				parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
				parameters.logarithmicDepthBuffer && renderer.extensions.get( 'EXT_frag_depth' ) ? '#define USE_LOGDEPTHBUF_EXT' : '',


				'uniform mat4 modelMatrix;',
				'uniform mat4 modelViewMatrix;',
				'uniform mat4 projectionMatrix;',
				'uniform mat4 viewMatrix;',
				'uniform mat3 normalMatrix;',
				'uniform vec3 cameraPosition;',

				'attribute vec3 position;',
				'attribute vec3 normal;',
				'attribute vec2 uv;',

				'#ifdef USE_COLOR',

				'	attribute vec3 color;',

				'#endif',

				'#ifdef USE_MORPHTARGETS',

				'	attribute vec3 morphTarget0;',
				'	attribute vec3 morphTarget1;',
				'	attribute vec3 morphTarget2;',
				'	attribute vec3 morphTarget3;',

				'	#ifdef USE_MORPHNORMALS',

				'		attribute vec3 morphNormal0;',
				'		attribute vec3 morphNormal1;',
				'		attribute vec3 morphNormal2;',
				'		attribute vec3 morphNormal3;',

				'	#else',

				'		attribute vec3 morphTarget4;',
				'		attribute vec3 morphTarget5;',
				'		attribute vec3 morphTarget6;',
				'		attribute vec3 morphTarget7;',

				'	#endif',

				'#endif',

				'#ifdef USE_SKINNING',

				'	attribute vec4 skinIndex;',
				'	attribute vec4 skinWeight;',

				'#endif',

				'\n'

			].filter( filterEmptyLine ).join( '\n' );


			prefixFragment = [

				customExtensions,

				'precision ' + parameters.precision + ' float;',
				'precision ' + parameters.precision + ' int;',

				'#define SHADER_NAME ' + material.__webglShader.name,

				customDefines,

				'#define NUM_DIR_LIGHTS ' + parameters.numDirLights,
				'#define NUM_POINT_LIGHTS ' + parameters.numPointLights,
				'#define NUM_SPOT_LIGHTS ' + parameters.numSpotLights,
				'#define NUM_HEMI_LIGHTS ' + parameters.numHemiLights,

				'#define NUM_SHADOWS ' + parameters.numShadows,

				parameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest : '',

				renderer.gammaInput ? '#define GAMMA_INPUT' : '',
				renderer.gammaOutput ? '#define GAMMA_OUTPUT' : '',
				'#define GAMMA_FACTOR ' + gammaFactorDefine,

				( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
				( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',

				parameters.map ? '#define USE_MAP' : '',
				parameters.envMap ? '#define USE_ENVMAP' : '',
				parameters.envMap ? '#define ' + envMapTypeDefine : '',
				parameters.envMap ? '#define ' + envMapModeDefine : '',
				parameters.envMap ? '#define ' + envMapBlendingDefine : '',
				parameters.lightMap ? '#define USE_LIGHTMAP' : '',
				parameters.aoMap ? '#define USE_AOMAP' : '',
				parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
				parameters.bumpMap ? '#define USE_BUMPMAP' : '',
				parameters.normalMap ? '#define USE_NORMALMAP' : '',
				parameters.specularMap ? '#define USE_SPECULARMAP' : '',
				parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
				parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
				parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
				parameters.vertexColors ? '#define USE_COLOR' : '',

				parameters.flatShading ? '#define FLAT_SHADED' : '',

				parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
				parameters.flipSided ? '#define FLIP_SIDED' : '',

				parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
				parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',
				parameters.shadowMapDebug ? '#define SHADOWMAP_DEBUG' : '',
				parameters.pointLightShadows > 0 ? '#define POINT_LIGHT_SHADOWS' : '',

				parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
				parameters.logarithmicDepthBuffer && renderer.extensions.get( 'EXT_frag_depth' ) ? '#define USE_LOGDEPTHBUF_EXT' : '',

				parameters.envMap && renderer.extensions.get( 'EXT_shader_texture_lod' ) ? '#define TEXTURE_LOD_EXT' : '',

				'uniform mat4 viewMatrix;',
				'uniform vec3 cameraPosition;',

				'\n'

			].filter( filterEmptyLine ).join( '\n' );

		}

		var vertexGlsl = prefixVertex + vertexShader;
		var fragmentGlsl = prefixFragment + fragmentShader;

		var glVertexShader = THREE.WebGLShader( gl, gl.VERTEX_SHADER, vertexGlsl );
		var glFragmentShader = THREE.WebGLShader( gl, gl.FRAGMENT_SHADER, fragmentGlsl );

		gl.attachShader( program, glVertexShader );
		gl.attachShader( program, glFragmentShader );

		// Force a particular attribute to index 0.

		if ( material.index0AttributeName !== undefined ) {

			gl.bindAttribLocation( program, 0, material.index0AttributeName );

		} else if ( parameters.morphTargets === true ) {

			// programs with morphTargets displace position out of attribute 0
			gl.bindAttribLocation( program, 0, 'position' );

		}

		gl.linkProgram( program );

		var programLog = gl.getProgramInfoLog( program );
		var vertexLog = gl.getShaderInfoLog( glVertexShader );
		var fragmentLog = gl.getShaderInfoLog( glFragmentShader );

		var runnable = true;
		var haveDiagnostics = true;

		if ( gl.getProgramParameter( program, gl.LINK_STATUS ) === false ) {

			runnable = false;

			console.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), 'gl.VALIDATE_STATUS', gl.getProgramParameter( program, gl.VALIDATE_STATUS ), 'gl.getProgramInfoLog', programLog, vertexLog, fragmentLog );

		} else if ( programLog !== '' ) {

			console.warn( 'THREE.WebGLProgram: gl.getProgramInfoLog()', programLog );

		} else if ( vertexLog === '' || fragmentLog === '' ) {

			haveDiagnostics = false;

		}

		if ( haveDiagnostics ) {

			this.diagnostics = {

				runnable: runnable,
				material: material,

				programLog: programLog,

				vertexShader: {

					log: vertexLog,
					prefix: prefixVertex

				},

				fragmentShader: {

					log: fragmentLog,
					prefix: prefixFragment

				}

			};

		}

		// clean up

		gl.deleteShader( glVertexShader );
		gl.deleteShader( glFragmentShader );

		// set up caching for uniform locations

		var cachedUniforms;

		this.getUniforms = function() {

			if ( cachedUniforms === undefined ) {

				cachedUniforms = fetchUniformLocations( gl, program );

			}

			return cachedUniforms;

		};

		// set up caching for attribute locations

		var cachedAttributes;

		this.getAttributes = function() {

			if ( cachedAttributes === undefined ) {

				cachedAttributes = fetchAttributeLocations( gl, program );

			}

			return cachedAttributes;

		};

		// free resource

		this.destroy = function() {

			gl.deleteProgram( program );
			this.program = undefined;

		};

		// DEPRECATED

		Object.defineProperties( this, {

			uniforms: {
				get: function() {

					console.warn( 'THREE.WebGLProgram: .uniforms is now .getUniforms().' );
					return this.getUniforms();

				}
			},

			attributes: {
				get: function() {

					console.warn( 'THREE.WebGLProgram: .attributes is now .getAttributes().' );
					return this.getAttributes();

				}
			}

		} );


		//

		this.id = programIdCount ++;
		this.code = code;
		this.usedTimes = 1;
		this.program = program;
		this.vertexShader = glVertexShader;
		this.fragmentShader = glFragmentShader;

		return this;

	};

} )();

// File:src/renderers/webgl/WebGLPrograms.js

THREE.WebGLPrograms = function ( renderer, capabilities ) {

	var programs = [];

	var shaderIDs = {
		MeshDepthMaterial: 'depth',
		MeshNormalMaterial: 'normal',
		MeshBasicMaterial: 'basic',
		MeshLambertMaterial: 'lambert',
		MeshPhongMaterial: 'phong',
		MeshStandardMaterial: 'standard',
		LineBasicMaterial: 'basic',
		LineDashedMaterial: 'dashed',
		PointsMaterial: 'points'
	};

	var parameterNames = [
		"precision", "supportsVertexTextures", "map", "envMap", "envMapMode",
		"lightMap", "aoMap", "emissiveMap", "bumpMap", "normalMap", "displacementMap", "specularMap",
		"roughnessMap", "metalnessMap",
		"alphaMap", "combine", "vertexColors", "fog", "useFog", "fogExp",
		"flatShading", "sizeAttenuation", "logarithmicDepthBuffer", "skinning",
		"maxBones", "useVertexTexture", "morphTargets", "morphNormals",
		"maxMorphTargets", "maxMorphNormals",
		"numDirLights", "numPointLights", "numSpotLights", "numHemiLights",
		"numShadows", "shadowMapEnabled", "pointLightShadows",
		"shadowMapType", "shadowMapDebug",
		"alphaTest", "doubleSided", "flipSided"
	];


	function allocateBones ( object ) {

		if ( capabilities.floatVertexTextures && object && object.skeleton && object.skeleton.useVertexTexture ) {

			return 1024;

		} else {

			// default for when object is not specified
			// ( for example when prebuilding shader to be used with multiple objects )
			//
			//  - leave some extra space for other uniforms
			//  - limit here is ANGLE's 254 max uniform vectors
			//    (up to 54 should be safe)

			var nVertexUniforms = capabilities.maxVertexUniforms;
			var nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 );

			var maxBones = nVertexMatrices;

			if ( object !== undefined && object instanceof THREE.SkinnedMesh ) {

				maxBones = Math.min( object.skeleton.bones.length, maxBones );

				if ( maxBones < object.skeleton.bones.length ) {

					console.warn( 'WebGLRenderer: too many bones - ' + object.skeleton.bones.length + ', this GPU supports just ' + maxBones + ' (try OpenGL instead of ANGLE)' );

				}

			}

			return maxBones;

		}

	}

	this.getParameters = function ( material, lights, fog, object ) {

		var shaderID = shaderIDs[ material.type ];
		// heuristics to create shader parameters according to lights in the scene
		// (not to blow over maxLights budget)

		var maxBones = allocateBones( object );
		var precision = renderer.getPrecision();

		if ( material.precision !== null ) {

			precision = capabilities.getMaxPrecision( material.precision );

			if ( precision !== material.precision ) {

				console.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' );

			}

		}

		var parameters = {

			shaderID: shaderID,

			precision: precision,
			supportsVertexTextures: capabilities.vertexTextures,

			map: !! material.map,
			envMap: !! material.envMap,
			envMapMode: material.envMap && material.envMap.mapping,
			lightMap: !! material.lightMap,
			aoMap: !! material.aoMap,
			emissiveMap: !! material.emissiveMap,
			bumpMap: !! material.bumpMap,
			normalMap: !! material.normalMap,
			displacementMap: !! material.displacementMap,
			roughnessMap: !! material.roughnessMap,
			metalnessMap: !! material.metalnessMap,
			specularMap: !! material.specularMap,
			alphaMap: !! material.alphaMap,

			combine: material.combine,

			vertexColors: material.vertexColors,

			fog: fog,
			useFog: material.fog,
			fogExp: fog instanceof THREE.FogExp2,

			flatShading: material.shading === THREE.FlatShading,

			sizeAttenuation: material.sizeAttenuation,
			logarithmicDepthBuffer: capabilities.logarithmicDepthBuffer,

			skinning: material.skinning,
			maxBones: maxBones,
			useVertexTexture: capabilities.floatVertexTextures && object && object.skeleton && object.skeleton.useVertexTexture,

			morphTargets: material.morphTargets,
			morphNormals: material.morphNormals,
			maxMorphTargets: renderer.maxMorphTargets,
			maxMorphNormals: renderer.maxMorphNormals,

			numDirLights: lights.directional.length,
			numPointLights: lights.point.length,
			numSpotLights: lights.spot.length,
			numHemiLights: lights.hemi.length,

			numShadows: lights.shadows.length,
			pointLightShadows: lights.shadowsPointLight,

			shadowMapEnabled: renderer.shadowMap.enabled && object.receiveShadow && lights.shadows.length > 0,
			shadowMapType: renderer.shadowMap.type,
			shadowMapDebug: renderer.shadowMap.debug,

			alphaTest: material.alphaTest,
			doubleSided: material.side === THREE.DoubleSide,
			flipSided: material.side === THREE.BackSide

		};

		return parameters;

	};

	this.getProgramCode = function ( material, parameters ) {

		var chunks = [];

		if ( parameters.shaderID ) {

			chunks.push( parameters.shaderID );

		} else {

			chunks.push( material.fragmentShader );
			chunks.push( material.vertexShader );

		}

		if ( material.defines !== undefined ) {

			for ( var name in material.defines ) {

				chunks.push( name );
				chunks.push( material.defines[ name ] );

			}

		}

		for ( var i = 0; i < parameterNames.length; i ++ ) {

			var parameterName = parameterNames[ i ];
			chunks.push( parameterName );
			chunks.push( parameters[ parameterName ] );

		}

		return chunks.join();

	};

	this.acquireProgram = function ( material, parameters, code ) {

		var program;

		// Check if code has been already compiled
		for ( var p = 0, pl = programs.length; p < pl; p ++ ) {

			var programInfo = programs[ p ];

			if ( programInfo.code === code ) {

				program = programInfo;
				++ program.usedTimes;

				break;

			}

		}

		if ( program === undefined ) {

			program = new THREE.WebGLProgram( renderer, code, material, parameters );
			programs.push( program );

		}

		return program;

	};

	this.releaseProgram = function( program ) {

		if ( -- program.usedTimes === 0 ) {

			// Remove from unordered set
			var i = programs.indexOf( program );
			programs[ i ] = programs[ programs.length - 1 ];
			programs.pop();

			// Free WebGL resources
			program.destroy();

		}

	};

	// Exposed for resource monitoring & error feedback via renderer.info:
	this.programs = programs;

};

// File:src/renderers/webgl/WebGLProperties.js

/**
* @author fordacious / fordacious.github.io
*/

THREE.WebGLProperties = function () {

	var properties = {};

	this.get = function ( object ) {

		var uuid = object.uuid;
		var map = properties[ uuid ];

		if ( map === undefined ) {

			map = {};
			properties[ uuid ] = map;

		}

		return map;

	};

	this.delete = function ( object ) {

		delete properties[ object.uuid ];

	};

	this.clear = function () {

		properties = {};

	};

};

// File:src/renderers/webgl/WebGLShader.js

THREE.WebGLShader = ( function () {

	function addLineNumbers( string ) {

		var lines = string.split( '\n' );

		for ( var i = 0; i < lines.length; i ++ ) {

			lines[ i ] = ( i + 1 ) + ': ' + lines[ i ];

		}

		return lines.join( '\n' );

	}

	return function WebGLShader( gl, type, string ) {

		var shader = gl.createShader( type );

		gl.shaderSource( shader, string );
		gl.compileShader( shader );

		if ( gl.getShaderParameter( shader, gl.COMPILE_STATUS ) === false ) {

			console.error( 'THREE.WebGLShader: Shader couldn\'t compile.' );

		}

		if ( gl.getShaderInfoLog( shader ) !== '' ) {

			console.warn( 'THREE.WebGLShader: gl.getShaderInfoLog()', type === gl.VERTEX_SHADER ? 'vertex' : 'fragment', gl.getShaderInfoLog( shader ), addLineNumbers( string ) );

		}

		// --enable-privileged-webgl-extension
		// console.log( type, gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );

		return shader;

	};

} )();

// File:src/renderers/webgl/WebGLShadowMap.js

/**
 * @author alteredq / http://alteredqualia.com/
 * @author mrdoob / http://mrdoob.com/
 */

THREE.WebGLShadowMap = function ( _renderer, _lights, _objects ) {

	var _gl = _renderer.context,
	_state = _renderer.state,
	_frustum = new THREE.Frustum(),
	_projScreenMatrix = new THREE.Matrix4(),

	_lookTarget = new THREE.Vector3(),
	_lightPositionWorld = new THREE.Vector3(),

	_renderList = [],

	_MorphingFlag = 1,
	_SkinningFlag = 2,

	_NumberOfMaterialVariants = ( _MorphingFlag | _SkinningFlag ) + 1,

	_depthMaterials = new Array( _NumberOfMaterialVariants ),
	_distanceMaterials = new Array( _NumberOfMaterialVariants );

	var cubeDirections = [
		new THREE.Vector3( 1, 0, 0 ), new THREE.Vector3( - 1, 0, 0 ), new THREE.Vector3( 0, 0, 1 ),
		new THREE.Vector3( 0, 0, - 1 ), new THREE.Vector3( 0, 1, 0 ), new THREE.Vector3( 0, - 1, 0 )
	];

	var cubeUps = [
		new THREE.Vector3( 0, 1, 0 ), new THREE.Vector3( 0, 1, 0 ), new THREE.Vector3( 0, 1, 0 ),
		new THREE.Vector3( 0, 1, 0 ), new THREE.Vector3( 0, 0, 1 ),	new THREE.Vector3( 0, 0, - 1 )
	];

	var cube2DViewPorts = [
		new THREE.Vector4(), new THREE.Vector4(), new THREE.Vector4(),
		new THREE.Vector4(), new THREE.Vector4(), new THREE.Vector4()
	];

	// init

	var depthShader = THREE.ShaderLib[ "depthRGBA" ];
	var depthUniforms = THREE.UniformsUtils.clone( depthShader.uniforms );

	var distanceShader = THREE.ShaderLib[ "distanceRGBA" ];
	var distanceUniforms = THREE.UniformsUtils.clone( distanceShader.uniforms );

	for ( var i = 0; i !== _NumberOfMaterialVariants; ++ i ) {

		var useMorphing = ( i & _MorphingFlag ) !== 0;
		var useSkinning = ( i & _SkinningFlag ) !== 0;

		var depthMaterial = new THREE.ShaderMaterial( {
			uniforms: depthUniforms,
			vertexShader: depthShader.vertexShader,
			fragmentShader: depthShader.fragmentShader,
			morphTargets: useMorphing,
			skinning: useSkinning
		} );

		depthMaterial._shadowPass = true;

		_depthMaterials[ i ] = depthMaterial;

		var distanceMaterial = new THREE.ShaderMaterial( {
			uniforms: distanceUniforms,
			vertexShader: distanceShader.vertexShader,
			fragmentShader: distanceShader.fragmentShader,
			morphTargets: useMorphing,
			skinning: useSkinning
		} );

		distanceMaterial._shadowPass = true;

		_distanceMaterials[ i ] = distanceMaterial;

	}

	//

	var scope = this;

	this.enabled = false;

	this.autoUpdate = true;
	this.needsUpdate = false;

	this.type = THREE.PCFShadowMap;
	this.cullFace = THREE.CullFaceFront;

	this.render = function ( scene, camera ) {

		var faceCount, isPointLight;

		if ( scope.enabled === false ) return;
		if ( scope.autoUpdate === false && scope.needsUpdate === false ) return;

		// Set GL state for depth map.
		_gl.clearColor( 1, 1, 1, 1 );
		_state.disable( _gl.BLEND );
		_state.enable( _gl.CULL_FACE );
		_gl.frontFace( _gl.CCW );
		_gl.cullFace( scope.cullFace === THREE.CullFaceFront ? _gl.FRONT : _gl.BACK );
		_state.setDepthTest( true );
		_state.setScissorTest( false );

		// render depth map

		var shadows = _lights.shadows;

		for ( var i = 0, il = shadows.length; i < il; i ++ ) {

			var light = shadows[ i ];

			var shadow = light.shadow;
			var shadowCamera = shadow.camera;
			var shadowMapSize = shadow.mapSize;

			if ( light instanceof THREE.PointLight ) {

				faceCount = 6;
				isPointLight = true;

				var vpWidth = shadowMapSize.x / 4.0;
				var vpHeight = shadowMapSize.y / 2.0;

				// These viewports map a cube-map onto a 2D texture with the
				// following orientation:
				//
				//  xzXZ
				//   y Y
				//
				// X - Positive x direction
				// x - Negative x direction
				// Y - Positive y direction
				// y - Negative y direction
				// Z - Positive z direction
				// z - Negative z direction

				// positive X
				cube2DViewPorts[ 0 ].set( vpWidth * 2, vpHeight, vpWidth, vpHeight );
				// negative X
				cube2DViewPorts[ 1 ].set( 0, vpHeight, vpWidth, vpHeight );
				// positive Z
				cube2DViewPorts[ 2 ].set( vpWidth * 3, vpHeight, vpWidth, vpHeight );
				// negative Z
				cube2DViewPorts[ 3 ].set( vpWidth, vpHeight, vpWidth, vpHeight );
				// positive Y
				cube2DViewPorts[ 4 ].set( vpWidth * 3, 0, vpWidth, vpHeight );
				// negative Y
				cube2DViewPorts[ 5 ].set( vpWidth, 0, vpWidth, vpHeight );

			} else {

				faceCount = 1;
				isPointLight = false;

			}

			if ( shadow.map === null ) {

				var shadowFilter = THREE.LinearFilter;

				if ( scope.type === THREE.PCFSoftShadowMap ) {

					shadowFilter = THREE.NearestFilter;

				}

				var pars = { minFilter: shadowFilter, magFilter: shadowFilter, format: THREE.RGBAFormat };

				shadow.map = new THREE.WebGLRenderTarget( shadowMapSize.x, shadowMapSize.y, pars );
				shadow.matrix = new THREE.Matrix4();

				//

				if ( light instanceof THREE.SpotLight ) {

					shadowCamera.aspect = shadowMapSize.x / shadowMapSize.y;

				}

				shadowCamera.updateProjectionMatrix();

			}

			var shadowMap = shadow.map;
			var shadowMatrix = shadow.matrix;

			_lightPositionWorld.setFromMatrixPosition( light.matrixWorld );
			shadowCamera.position.copy( _lightPositionWorld );

			_renderer.setRenderTarget( shadowMap );
			_renderer.clear();

			// render shadow map for each cube face (if omni-directional) or
			// run a single pass if not

			for ( var face = 0; face < faceCount; face ++ ) {

				if ( isPointLight ) {

					_lookTarget.copy( shadowCamera.position );
					_lookTarget.add( cubeDirections[ face ] );
					shadowCamera.up.copy( cubeUps[ face ] );
					shadowCamera.lookAt( _lookTarget );

					var vpDimensions = cube2DViewPorts[ face ];
					_state.viewport( vpDimensions );

				} else {

					_lookTarget.setFromMatrixPosition( light.target.matrixWorld );
					shadowCamera.lookAt( _lookTarget );

				}

				shadowCamera.updateMatrixWorld();
				shadowCamera.matrixWorldInverse.getInverse( shadowCamera.matrixWorld );

				// compute shadow matrix

				shadowMatrix.set(
					0.5, 0.0, 0.0, 0.5,
					0.0, 0.5, 0.0, 0.5,
					0.0, 0.0, 0.5, 0.5,
					0.0, 0.0, 0.0, 1.0
				);

				shadowMatrix.multiply( shadowCamera.projectionMatrix );
				shadowMatrix.multiply( shadowCamera.matrixWorldInverse );

				// update camera matrices and frustum

				_projScreenMatrix.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse );
				_frustum.setFromMatrix( _projScreenMatrix );

				// set object matrices & frustum culling

				_renderList.length = 0;

				projectObject( scene, camera, shadowCamera );

				// render shadow map
				// render regular objects

				for ( var j = 0, jl = _renderList.length; j < jl; j ++ ) {

					var object = _renderList[ j ];
					var geometry = _objects.update( object );
					var material = object.material;

					if ( material instanceof THREE.MeshFaceMaterial ) {

						var groups = geometry.groups;
						var materials = material.materials;

						for ( var k = 0, kl = groups.length; k < kl; k ++ ) {

							var group = groups[ k ];
							var groupMaterial = materials[ group.materialIndex ];

							if ( groupMaterial.visible === true ) {

								var depthMaterial = getDepthMaterial( object, groupMaterial, isPointLight, _lightPositionWorld );
								_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group );

							}

						}

					} else {

						var depthMaterial = getDepthMaterial( object, material, isPointLight, _lightPositionWorld );
						_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null );

					}

				}

			}

			// We must call _renderer.resetGLState() at the end of each iteration of
			// the light loop in order to force material updates for each light.
			_renderer.resetGLState();

		}

		// Restore GL state.
		var clearColor = _renderer.getClearColor(),
		clearAlpha = _renderer.getClearAlpha();
		_renderer.setClearColor( clearColor, clearAlpha );

		_state.enable( _gl.BLEND );

		if ( scope.cullFace === THREE.CullFaceFront ) {

			_gl.cullFace( _gl.BACK );

		}

		_renderer.resetGLState();

		scope.needsUpdate = false;

	};

	function getDepthMaterial( object, material, isPointLight, lightPositionWorld ) {

		var geometry = object.geometry;

		var newMaterial = null;

		var materialVariants = _depthMaterials;
		var customMaterial = object.customDepthMaterial;

		if ( isPointLight ) {

			materialVariants = _distanceMaterials;
			customMaterial = object.customDistanceMaterial;

		}

		if ( ! customMaterial ) {

			var useMorphing = geometry.morphTargets !== undefined &&
					geometry.morphTargets.length > 0 && material.morphTargets;

			var useSkinning = object instanceof THREE.SkinnedMesh && material.skinning;

			var variantIndex = 0;

			if ( useMorphing ) variantIndex |= _MorphingFlag;
			if ( useSkinning ) variantIndex |= _SkinningFlag;

			newMaterial = materialVariants[ variantIndex ];

		} else {

			newMaterial = customMaterial;

		}

		newMaterial.visible = material.visible;
		newMaterial.wireframe = material.wireframe;
		newMaterial.wireframeLinewidth = material.wireframeLinewidth;

		if ( isPointLight && newMaterial.uniforms.lightPos !== undefined ) {

			newMaterial.uniforms.lightPos.value.copy( lightPositionWorld );

		}

		return newMaterial;

	}

	function projectObject( object, camera, shadowCamera ) {

		if ( object.visible === false ) return;

		if ( object.layers.test( camera.layers ) && ( object instanceof THREE.Mesh || object instanceof THREE.Line || object instanceof THREE.Points ) ) {

			if ( object.castShadow && ( object.frustumCulled === false || _frustum.intersectsObject( object ) === true ) ) {

				var material = object.material;

				if ( material.visible === true ) {

					object.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld );
					_renderList.push( object );

				}

			}

		}

		var children = object.children;

		for ( var i = 0, l = children.length; i < l; i ++ ) {

			projectObject( children[ i ], camera, shadowCamera );

		}

	}

};

// File:src/renderers/webgl/WebGLState.js

/**
* @author mrdoob / http://mrdoob.com/
*/

THREE.WebGLState = function ( gl, extensions, paramThreeToGL ) {

	var _this = this;

	var newAttributes = new Uint8Array( 16 );
	var enabledAttributes = new Uint8Array( 16 );
	var attributeDivisors = new Uint8Array( 16 );

	var capabilities = {};

	var compressedTextureFormats = null;

	var currentBlending = null;
	var currentBlendEquation = null;
	var currentBlendSrc = null;
	var currentBlendDst = null;
	var currentBlendEquationAlpha = null;
	var currentBlendSrcAlpha = null;
	var currentBlendDstAlpha = null;

	var currentDepthFunc = null;
	var currentDepthWrite = null;

	var currentColorWrite = null;

	var currentStencilWrite = null;
	var currentStencilFunc = null;
	var currentStencilRef = null;
	var currentStencilMask = null;
	var currentStencilFail  = null;
	var currentStencilZFail = null;
	var currentStencilZPass = null;

	var currentFlipSided = null;

	var currentLineWidth = null;

	var currentPolygonOffsetFactor = null;
	var currentPolygonOffsetUnits = null;

	var currentScissorTest = null;

	var maxTextures = gl.getParameter( gl.MAX_TEXTURE_IMAGE_UNITS );

	var currentTextureSlot = undefined;
	var currentBoundTextures = {};

	var currentScissor = new THREE.Vector4();
	var currentViewport = new THREE.Vector4();

	this.init = function () {

		gl.clearColor( 0, 0, 0, 1 );
		gl.clearDepth( 1 );
		gl.clearStencil( 0 );

		this.enable( gl.DEPTH_TEST );
		gl.depthFunc( gl.LEQUAL );

		gl.frontFace( gl.CCW );
		gl.cullFace( gl.BACK );
		this.enable( gl.CULL_FACE );

		this.enable( gl.BLEND );
		gl.blendEquation( gl.FUNC_ADD );
		gl.blendFunc( gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA );

	};

	this.initAttributes = function () {

		for ( var i = 0, l = newAttributes.length; i < l; i ++ ) {

			newAttributes[ i ] = 0;

		}

	};

	this.enableAttribute = function ( attribute ) {

		newAttributes[ attribute ] = 1;

		if ( enabledAttributes[ attribute ] === 0 ) {

			gl.enableVertexAttribArray( attribute );
			enabledAttributes[ attribute ] = 1;

		}

		if ( attributeDivisors[ attribute ] !== 0 ) {

			var extension = extensions.get( 'ANGLE_instanced_arrays' );

			extension.vertexAttribDivisorANGLE( attribute, 0 );
			attributeDivisors[ attribute ] = 0;

		}

	};

	this.enableAttributeAndDivisor = function ( attribute, meshPerAttribute, extension ) {

		newAttributes[ attribute ] = 1;

		if ( enabledAttributes[ attribute ] === 0 ) {

			gl.enableVertexAttribArray( attribute );
			enabledAttributes[ attribute ] = 1;

		}

		if ( attributeDivisors[ attribute ] !== meshPerAttribute ) {

			extension.vertexAttribDivisorANGLE( attribute, meshPerAttribute );
			attributeDivisors[ attribute ] = meshPerAttribute;

		}

	};

	this.disableUnusedAttributes = function () {

		for ( var i = 0, l = enabledAttributes.length; i < l; i ++ ) {

			if ( enabledAttributes[ i ] !== newAttributes[ i ] ) {

				gl.disableVertexAttribArray( i );
				enabledAttributes[ i ] = 0;

			}

		}

	};

	this.enable = function ( id ) {

		if ( capabilities[ id ] !== true ) {

			gl.enable( id );
			capabilities[ id ] = true;

		}

	};

	this.disable = function ( id ) {

		if ( capabilities[ id ] !== false ) {

			gl.disable( id );
			capabilities[ id ] = false;

		}

	};

	this.getCompressedTextureFormats = function () {

		if ( compressedTextureFormats === null ) {

			compressedTextureFormats = [];

			if ( extensions.get( 'WEBGL_compressed_texture_pvrtc' ) ||
			     extensions.get( 'WEBGL_compressed_texture_s3tc' ) ) {

				var formats = gl.getParameter( gl.COMPRESSED_TEXTURE_FORMATS );

				for ( var i = 0; i < formats.length; i ++ ) {

					compressedTextureFormats.push( formats[ i ] );

				}

			}

		}

		return compressedTextureFormats;

	};

	this.setBlending = function ( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha ) {

		if ( blending === THREE.NoBlending ) {

			this.disable( gl.BLEND );

		} else {

			this.enable( gl.BLEND );

		}

		if ( blending !== currentBlending ) {

			if ( blending === THREE.AdditiveBlending ) {

				gl.blendEquation( gl.FUNC_ADD );
				gl.blendFunc( gl.SRC_ALPHA, gl.ONE );

			} else if ( blending === THREE.SubtractiveBlending ) {

				// TODO: Find blendFuncSeparate() combination

				gl.blendEquation( gl.FUNC_ADD );
				gl.blendFunc( gl.ZERO, gl.ONE_MINUS_SRC_COLOR );

			} else if ( blending === THREE.MultiplyBlending ) {

				// TODO: Find blendFuncSeparate() combination

				gl.blendEquation( gl.FUNC_ADD );
				gl.blendFunc( gl.ZERO, gl.SRC_COLOR );

			} else {

				gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
				gl.blendFuncSeparate( gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );

			}

			currentBlending = blending;

		}

		if ( blending === THREE.CustomBlending ) {

			blendEquationAlpha = blendEquationAlpha || blendEquation;
			blendSrcAlpha = blendSrcAlpha || blendSrc;
			blendDstAlpha = blendDstAlpha || blendDst;

			if ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) {

				gl.blendEquationSeparate( paramThreeToGL( blendEquation ), paramThreeToGL( blendEquationAlpha ) );

				currentBlendEquation = blendEquation;
				currentBlendEquationAlpha = blendEquationAlpha;

			}

			if ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) {

				gl.blendFuncSeparate( paramThreeToGL( blendSrc ), paramThreeToGL( blendDst ), paramThreeToGL( blendSrcAlpha ), paramThreeToGL( blendDstAlpha ) );

				currentBlendSrc = blendSrc;
				currentBlendDst = blendDst;
				currentBlendSrcAlpha = blendSrcAlpha;
				currentBlendDstAlpha = blendDstAlpha;

			}

		} else {

			currentBlendEquation = null;
			currentBlendSrc = null;
			currentBlendDst = null;
			currentBlendEquationAlpha = null;
			currentBlendSrcAlpha = null;
			currentBlendDstAlpha = null;

		}

	};

	this.setDepthFunc = function ( depthFunc ) {

		if ( currentDepthFunc !== depthFunc ) {

			if ( depthFunc ) {

				switch ( depthFunc ) {

					case THREE.NeverDepth:

						gl.depthFunc( gl.NEVER );
						break;

					case THREE.AlwaysDepth:

						gl.depthFunc( gl.ALWAYS );
						break;

					case THREE.LessDepth:

						gl.depthFunc( gl.LESS );
						break;

					case THREE.LessEqualDepth:

						gl.depthFunc( gl.LEQUAL );
						break;

					case THREE.EqualDepth:

						gl.depthFunc( gl.EQUAL );
						break;

					case THREE.GreaterEqualDepth:

						gl.depthFunc( gl.GEQUAL );
						break;

					case THREE.GreaterDepth:

						gl.depthFunc( gl.GREATER );
						break;

					case THREE.NotEqualDepth:

						gl.depthFunc( gl.NOTEQUAL );
						break;

					default:

						gl.depthFunc( gl.LEQUAL );

				}

			} else {

				gl.depthFunc( gl.LEQUAL );

			}

			currentDepthFunc = depthFunc;

		}

	};

	this.setDepthTest = function ( depthTest ) {

		if ( depthTest ) {

			this.enable( gl.DEPTH_TEST );

		} else {

			this.disable( gl.DEPTH_TEST );

		}

	};

	this.setDepthWrite = function ( depthWrite ) {

		// TODO: Rename to setDepthMask

		if ( currentDepthWrite !== depthWrite ) {

			gl.depthMask( depthWrite );
			currentDepthWrite = depthWrite;

		}

	};

	this.setColorWrite = function ( colorWrite ) {

		// TODO: Rename to setColorMask

		if ( currentColorWrite !== colorWrite ) {

			gl.colorMask( colorWrite, colorWrite, colorWrite, colorWrite );
			currentColorWrite = colorWrite;

		}

	};

	this.setStencilFunc = function ( stencilFunc, stencilRef, stencilMask ) {

		if ( currentStencilFunc !== stencilFunc ||
				 currentStencilRef 	!== stencilRef 	||
				 currentStencilMask !== stencilMask ) {

			gl.stencilFunc( stencilFunc,  stencilRef, stencilMask );

			currentStencilFunc = stencilFunc;
			currentStencilRef  = stencilRef;
			currentStencilMask = stencilMask;

		}

	};

	this.setStencilOp = function ( stencilFail, stencilZFail, stencilZPass ) {

		if ( currentStencilFail	 !== stencilFail 	||
				 currentStencilZFail !== stencilZFail ||
				 currentStencilZPass !== stencilZPass ) {

			gl.stencilOp( stencilFail,  stencilZFail, stencilZPass );

			currentStencilFail  = stencilFail;
			currentStencilZFail = stencilZFail;
			currentStencilZPass = stencilZPass;

		}

	};

	this.setStencilTest = function ( stencilTest ) {

		if ( stencilTest ) {

			this.enable( gl.STENCIL_TEST );

		} else {

			this.disable( gl.STENCIL_TEST );

		}

	};

	this.setStencilWrite = function ( stencilWrite ) {

		// TODO: Rename to setStencilMask

		if ( currentStencilWrite !== stencilWrite ) {

			gl.stencilMask( stencilWrite );
			currentStencilWrite = stencilWrite;

		}

	};

	this.setFlipSided = function ( flipSided ) {

		if ( currentFlipSided !== flipSided ) {

			if ( flipSided ) {

				gl.frontFace( gl.CW );

			} else {

				gl.frontFace( gl.CCW );

			}

			currentFlipSided = flipSided;

		}

	};

	this.setLineWidth = function ( width ) {

		if ( width !== currentLineWidth ) {

			gl.lineWidth( width );

			currentLineWidth = width;

		}

	};

	this.setPolygonOffset = function ( polygonOffset, factor, units ) {

		if ( polygonOffset ) {

			this.enable( gl.POLYGON_OFFSET_FILL );

		} else {

			this.disable( gl.POLYGON_OFFSET_FILL );

		}

		if ( polygonOffset && ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) ) {

			gl.polygonOffset( factor, units );

			currentPolygonOffsetFactor = factor;
			currentPolygonOffsetUnits = units;

		}

	};

	this.getScissorTest = function () {

		return currentScissorTest;

	};

	this.setScissorTest = function ( scissorTest ) {

		currentScissorTest = scissorTest;

		if ( scissorTest ) {

			this.enable( gl.SCISSOR_TEST );

		} else {

			this.disable( gl.SCISSOR_TEST );

		}

	};

	// texture

	this.activeTexture = function ( webglSlot ) {

		if ( webglSlot === undefined ) webglSlot = gl.TEXTURE0 + maxTextures - 1;

		if ( currentTextureSlot !== webglSlot ) {

			gl.activeTexture( webglSlot );
			currentTextureSlot = webglSlot;

		}

	}

	this.bindTexture = function ( webglType, webglTexture ) {

		if ( currentTextureSlot === undefined ) {

			_this.activeTexture();

		}

		var boundTexture = currentBoundTextures[ currentTextureSlot ];

		if ( boundTexture === undefined ) {

			boundTexture = { type: undefined, texture: undefined };
			currentBoundTextures[ currentTextureSlot ] = boundTexture;

		}

		if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {

			gl.bindTexture( webglType, webglTexture );

			boundTexture.type = webglType;
			boundTexture.texture = webglTexture;

		}

	};

	this.compressedTexImage2D = function () {

		try {

			gl.compressedTexImage2D.apply( gl, arguments );

		} catch ( error ) {

			console.error( error );

		}

	};

	this.texImage2D = function () {

		try {

			gl.texImage2D.apply( gl, arguments );

		} catch ( error ) {

			console.error( error );

		}

	};

	//

	this.scissor = function ( scissor ) {

		if ( currentScissor.equals( scissor ) === false ) {

			gl.scissor( scissor.x, scissor.y, scissor.z, scissor.w );
			currentScissor.copy( scissor );

		}

	};

	this.viewport = function ( viewport ) {

		if ( currentViewport.equals( viewport ) === false ) {

			gl.viewport( viewport.x, viewport.y, viewport.z, viewport.w );
			currentViewport.copy( viewport );

		}

	};

	//

	this.reset = function () {

		for ( var i = 0; i < enabledAttributes.length; i ++ ) {

			if ( enabledAttributes[ i ] === 1 ) {

				gl.disableVertexAttribArray( i );
				enabledAttributes[ i ] = 0;

			}

		}

		capabilities = {};

		compressedTextureFormats = null;

		currentBlending = null;

		currentDepthWrite = null;
		currentColorWrite = null;

		currentFlipSided = null;

	};

};

// File:src/renderers/webgl/plugins/LensFlarePlugin.js

/**
 * @author mikael emtinger / http://gomo.se/
 * @author alteredq / http://alteredqualia.com/
 */

THREE.LensFlarePlugin = function ( renderer, flares ) {

	var gl = renderer.context;
	var state = renderer.state;

	var vertexBuffer, elementBuffer;
	var program, attributes, uniforms;
	var hasVertexTexture;

	var tempTexture, occlusionTexture;

	function init() {

		var vertices = new Float32Array( [
			- 1, - 1,  0, 0,
			 1, - 1,  1, 0,
			 1,  1,  1, 1,
			- 1,  1,  0, 1
		] );

		var faces = new Uint16Array( [
			0, 1, 2,
			0, 2, 3
		] );

		// buffers

		vertexBuffer     = gl.createBuffer();
		elementBuffer    = gl.createBuffer();

		gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
		gl.bufferData( gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW );

		gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );
		gl.bufferData( gl.ELEMENT_ARRAY_BUFFER, faces, gl.STATIC_DRAW );

		// textures

		tempTexture      = gl.createTexture();
		occlusionTexture = gl.createTexture();

		state.bindTexture( gl.TEXTURE_2D, tempTexture );
		gl.texImage2D( gl.TEXTURE_2D, 0, gl.RGB, 16, 16, 0, gl.RGB, gl.UNSIGNED_BYTE, null );
		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE );
		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE );
		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST );
		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST );

		state.bindTexture( gl.TEXTURE_2D, occlusionTexture );
		gl.texImage2D( gl.TEXTURE_2D, 0, gl.RGBA, 16, 16, 0, gl.RGBA, gl.UNSIGNED_BYTE, null );
		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE );
		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE );
		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST );
		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST );

		hasVertexTexture = gl.getParameter( gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS ) > 0;

		var shader;

		if ( hasVertexTexture ) {

			shader = {

				vertexShader: [

					"uniform lowp int renderType;",

					"uniform vec3 screenPosition;",
					"uniform vec2 scale;",
					"uniform float rotation;",

					"uniform sampler2D occlusionMap;",

					"attribute vec2 position;",
					"attribute vec2 uv;",

					"varying vec2 vUV;",
					"varying float vVisibility;",

					"void main() {",

						"vUV = uv;",

						"vec2 pos = position;",

						"if ( renderType == 2 ) {",

							"vec4 visibility = texture2D( occlusionMap, vec2( 0.1, 0.1 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.5, 0.1 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.9, 0.1 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.9, 0.5 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.9, 0.9 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.5, 0.9 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.1, 0.9 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.1, 0.5 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.5, 0.5 ) );",

							"vVisibility =        visibility.r / 9.0;",
							"vVisibility *= 1.0 - visibility.g / 9.0;",
							"vVisibility *=       visibility.b / 9.0;",
							"vVisibility *= 1.0 - visibility.a / 9.0;",

							"pos.x = cos( rotation ) * position.x - sin( rotation ) * position.y;",
							"pos.y = sin( rotation ) * position.x + cos( rotation ) * position.y;",

						"}",

						"gl_Position = vec4( ( pos * scale + screenPosition.xy ).xy, screenPosition.z, 1.0 );",

					"}"

				].join( "\n" ),

				fragmentShader: [

					"uniform lowp int renderType;",

					"uniform sampler2D map;",
					"uniform float opacity;",
					"uniform vec3 color;",

					"varying vec2 vUV;",
					"varying float vVisibility;",

					"void main() {",

						// pink square

						"if ( renderType == 0 ) {",

							"gl_FragColor = vec4( 1.0, 0.0, 1.0, 0.0 );",

						// restore

						"} else if ( renderType == 1 ) {",

							"gl_FragColor = texture2D( map, vUV );",

						// flare

						"} else {",

							"vec4 texture = texture2D( map, vUV );",
							"texture.a *= opacity * vVisibility;",
							"gl_FragColor = texture;",
							"gl_FragColor.rgb *= color;",

						"}",

					"}"

				].join( "\n" )

			};

		} else {

			shader = {

				vertexShader: [

					"uniform lowp int renderType;",

					"uniform vec3 screenPosition;",
					"uniform vec2 scale;",
					"uniform float rotation;",

					"attribute vec2 position;",
					"attribute vec2 uv;",

					"varying vec2 vUV;",

					"void main() {",

						"vUV = uv;",

						"vec2 pos = position;",

						"if ( renderType == 2 ) {",

							"pos.x = cos( rotation ) * position.x - sin( rotation ) * position.y;",
							"pos.y = sin( rotation ) * position.x + cos( rotation ) * position.y;",

						"}",

						"gl_Position = vec4( ( pos * scale + screenPosition.xy ).xy, screenPosition.z, 1.0 );",

					"}"

				].join( "\n" ),

				fragmentShader: [

					"precision mediump float;",

					"uniform lowp int renderType;",

					"uniform sampler2D map;",
					"uniform sampler2D occlusionMap;",
					"uniform float opacity;",
					"uniform vec3 color;",

					"varying vec2 vUV;",

					"void main() {",

						// pink square

						"if ( renderType == 0 ) {",

							"gl_FragColor = vec4( texture2D( map, vUV ).rgb, 0.0 );",

						// restore

						"} else if ( renderType == 1 ) {",

							"gl_FragColor = texture2D( map, vUV );",

						// flare

						"} else {",

							"float visibility = texture2D( occlusionMap, vec2( 0.5, 0.1 ) ).a;",
							"visibility += texture2D( occlusionMap, vec2( 0.9, 0.5 ) ).a;",
							"visibility += texture2D( occlusionMap, vec2( 0.5, 0.9 ) ).a;",
							"visibility += texture2D( occlusionMap, vec2( 0.1, 0.5 ) ).a;",
							"visibility = ( 1.0 - visibility / 4.0 );",

							"vec4 texture = texture2D( map, vUV );",
							"texture.a *= opacity * visibility;",
							"gl_FragColor = texture;",
							"gl_FragColor.rgb *= color;",

						"}",

					"}"

				].join( "\n" )

			};

		}

		program = createProgram( shader );

		attributes = {
			vertex: gl.getAttribLocation ( program, "position" ),
			uv:     gl.getAttribLocation ( program, "uv" )
		};

		uniforms = {
			renderType:     gl.getUniformLocation( program, "renderType" ),
			map:            gl.getUniformLocation( program, "map" ),
			occlusionMap:   gl.getUniformLocation( program, "occlusionMap" ),
			opacity:        gl.getUniformLocation( program, "opacity" ),
			color:          gl.getUniformLocation( program, "color" ),
			scale:          gl.getUniformLocation( program, "scale" ),
			rotation:       gl.getUniformLocation( program, "rotation" ),
			screenPosition: gl.getUniformLocation( program, "screenPosition" )
		};

	}

	/*
	 * Render lens flares
	 * Method: renders 16x16 0xff00ff-colored points scattered over the light source area,
	 *         reads these back and calculates occlusion.
	 */

	this.render = function ( scene, camera, viewport ) {

		if ( flares.length === 0 ) return;

		var tempPosition = new THREE.Vector3();

		var invAspect = viewport.w / viewport.z,
			halfViewportWidth = viewport.z * 0.5,
			halfViewportHeight = viewport.w * 0.5;

		var size = 16 / viewport.w,
			scale = new THREE.Vector2( size * invAspect, size );

		var screenPosition = new THREE.Vector3( 1, 1, 0 ),
			screenPositionPixels = new THREE.Vector2( 1, 1 );

		if ( program === undefined ) {

			init();

		}

		gl.useProgram( program );

		state.initAttributes();
		state.enableAttribute( attributes.vertex );
		state.enableAttribute( attributes.uv );
		state.disableUnusedAttributes();

		// loop through all lens flares to update their occlusion and positions
		// setup gl and common used attribs/uniforms

		gl.uniform1i( uniforms.occlusionMap, 0 );
		gl.uniform1i( uniforms.map, 1 );

		gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
		gl.vertexAttribPointer( attributes.vertex, 2, gl.FLOAT, false, 2 * 8, 0 );
		gl.vertexAttribPointer( attributes.uv, 2, gl.FLOAT, false, 2 * 8, 8 );

		gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );

		state.disable( gl.CULL_FACE );
		state.setDepthWrite( false );

		for ( var i = 0, l = flares.length; i < l; i ++ ) {

			size = 16 / viewport.w;
			scale.set( size * invAspect, size );

			// calc object screen position

			var flare = flares[ i ];

			tempPosition.set( flare.matrixWorld.elements[ 12 ], flare.matrixWorld.elements[ 13 ], flare.matrixWorld.elements[ 14 ] );

			tempPosition.applyMatrix4( camera.matrixWorldInverse );
			tempPosition.applyProjection( camera.projectionMatrix );

			// setup arrays for gl programs

			screenPosition.copy( tempPosition );

			screenPositionPixels.x = screenPosition.x * halfViewportWidth + halfViewportWidth;
			screenPositionPixels.y = screenPosition.y * halfViewportHeight + halfViewportHeight;

			// screen cull

			if ( hasVertexTexture || (
				screenPositionPixels.x > 0 &&
				screenPositionPixels.x < viewport.z &&
				screenPositionPixels.y > 0 &&
				screenPositionPixels.y < viewport.w ) ) {

				// save current RGB to temp texture

				state.activeTexture( gl.TEXTURE0 );
				state.bindTexture( gl.TEXTURE_2D, null );
				state.activeTexture( gl.TEXTURE1 );
				state.bindTexture( gl.TEXTURE_2D, tempTexture );
				gl.copyTexImage2D( gl.TEXTURE_2D, 0, gl.RGB, viewport.x + screenPositionPixels.x - 8, viewport.y + screenPositionPixels.y - 8, 16, 16, 0 );


				// render pink quad

				gl.uniform1i( uniforms.renderType, 0 );
				gl.uniform2f( uniforms.scale, scale.x, scale.y );
				gl.uniform3f( uniforms.screenPosition, screenPosition.x, screenPosition.y, screenPosition.z );

				state.disable( gl.BLEND );
				state.enable( gl.DEPTH_TEST );

				gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );


				// copy result to occlusionMap

				state.activeTexture( gl.TEXTURE0 );
				state.bindTexture( gl.TEXTURE_2D, occlusionTexture );
				gl.copyTexImage2D( gl.TEXTURE_2D, 0, gl.RGBA, viewport.x + screenPositionPixels.x - 8, viewport.y + screenPositionPixels.y - 8, 16, 16, 0 );


				// restore graphics

				gl.uniform1i( uniforms.renderType, 1 );
				state.disable( gl.DEPTH_TEST );

				state.activeTexture( gl.TEXTURE1 );
				state.bindTexture( gl.TEXTURE_2D, tempTexture );
				gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );


				// update object positions

				flare.positionScreen.copy( screenPosition );

				if ( flare.customUpdateCallback ) {

					flare.customUpdateCallback( flare );

				} else {

					flare.updateLensFlares();

				}

				// render flares

				gl.uniform1i( uniforms.renderType, 2 );
				state.enable( gl.BLEND );

				for ( var j = 0, jl = flare.lensFlares.length; j < jl; j ++ ) {

					var sprite = flare.lensFlares[ j ];

					if ( sprite.opacity > 0.001 && sprite.scale > 0.001 ) {

						screenPosition.x = sprite.x;
						screenPosition.y = sprite.y;
						screenPosition.z = sprite.z;

						size = sprite.size * sprite.scale / viewport.w;

						scale.x = size * invAspect;
						scale.y = size;

						gl.uniform3f( uniforms.screenPosition, screenPosition.x, screenPosition.y, screenPosition.z );
						gl.uniform2f( uniforms.scale, scale.x, scale.y );
						gl.uniform1f( uniforms.rotation, sprite.rotation );

						gl.uniform1f( uniforms.opacity, sprite.opacity );
						gl.uniform3f( uniforms.color, sprite.color.r, sprite.color.g, sprite.color.b );

						state.setBlending( sprite.blending, sprite.blendEquation, sprite.blendSrc, sprite.blendDst );
						renderer.setTexture( sprite.texture, 1 );

						gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );

					}

				}

			}

		}

		// restore gl

		state.enable( gl.CULL_FACE );
		state.enable( gl.DEPTH_TEST );
		state.setDepthWrite( true );

		renderer.resetGLState();

	};

	function createProgram ( shader ) {

		var program = gl.createProgram();

		var fragmentShader = gl.createShader( gl.FRAGMENT_SHADER );
		var vertexShader = gl.createShader( gl.VERTEX_SHADER );

		var prefix = "precision " + renderer.getPrecision() + " float;\n";

		gl.shaderSource( fragmentShader, prefix + shader.fragmentShader );
		gl.shaderSource( vertexShader, prefix + shader.vertexShader );

		gl.compileShader( fragmentShader );
		gl.compileShader( vertexShader );

		gl.attachShader( program, fragmentShader );
		gl.attachShader( program, vertexShader );

		gl.linkProgram( program );

		return program;

	}

};

// File:src/renderers/webgl/plugins/SpritePlugin.js

/**
 * @author mikael emtinger / http://gomo.se/
 * @author alteredq / http://alteredqualia.com/
 */

THREE.SpritePlugin = function ( renderer, sprites ) {

	var gl = renderer.context;
	var state = renderer.state;

	var vertexBuffer, elementBuffer;
	var program, attributes, uniforms;

	var texture;

	// decompose matrixWorld

	var spritePosition = new THREE.Vector3();
	var spriteRotation = new THREE.Quaternion();
	var spriteScale = new THREE.Vector3();

	function init() {

		var vertices = new Float32Array( [
			- 0.5, - 0.5,  0, 0,
			  0.5, - 0.5,  1, 0,
			  0.5,   0.5,  1, 1,
			- 0.5,   0.5,  0, 1
		] );

		var faces = new Uint16Array( [
			0, 1, 2,
			0, 2, 3
		] );

		vertexBuffer  = gl.createBuffer();
		elementBuffer = gl.createBuffer();

		gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
		gl.bufferData( gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW );

		gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );
		gl.bufferData( gl.ELEMENT_ARRAY_BUFFER, faces, gl.STATIC_DRAW );

		program = createProgram();

		attributes = {
			position:			gl.getAttribLocation ( program, 'position' ),
			uv:					gl.getAttribLocation ( program, 'uv' )
		};

		uniforms = {
			uvOffset:			gl.getUniformLocation( program, 'uvOffset' ),
			uvScale:			gl.getUniformLocation( program, 'uvScale' ),

			rotation:			gl.getUniformLocation( program, 'rotation' ),
			scale:				gl.getUniformLocation( program, 'scale' ),

			color:				gl.getUniformLocation( program, 'color' ),
			map:				gl.getUniformLocation( program, 'map' ),
			opacity:			gl.getUniformLocation( program, 'opacity' ),

			modelViewMatrix: 	gl.getUniformLocation( program, 'modelViewMatrix' ),
			projectionMatrix:	gl.getUniformLocation( program, 'projectionMatrix' ),

			fogType:			gl.getUniformLocation( program, 'fogType' ),
			fogDensity:			gl.getUniformLocation( program, 'fogDensity' ),
			fogNear:			gl.getUniformLocation( program, 'fogNear' ),
			fogFar:				gl.getUniformLocation( program, 'fogFar' ),
			fogColor:			gl.getUniformLocation( program, 'fogColor' ),

			alphaTest:			gl.getUniformLocation( program, 'alphaTest' )
		};

		var canvas = document.createElement( 'canvas' );
		canvas.width = 8;
		canvas.height = 8;

		var context = canvas.getContext( '2d' );
		context.fillStyle = 'white';
		context.fillRect( 0, 0, 8, 8 );

		texture = new THREE.Texture( canvas );
		texture.needsUpdate = true;

	}

	this.render = function ( scene, camera ) {

		if ( sprites.length === 0 ) return;

		// setup gl

		if ( program === undefined ) {

			init();

		}

		gl.useProgram( program );

		state.initAttributes();
		state.enableAttribute( attributes.position );
		state.enableAttribute( attributes.uv );
		state.disableUnusedAttributes();

		state.disable( gl.CULL_FACE );
		state.enable( gl.BLEND );

		gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
		gl.vertexAttribPointer( attributes.position, 2, gl.FLOAT, false, 2 * 8, 0 );
		gl.vertexAttribPointer( attributes.uv, 2, gl.FLOAT, false, 2 * 8, 8 );

		gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );

		gl.uniformMatrix4fv( uniforms.projectionMatrix, false, camera.projectionMatrix.elements );

		state.activeTexture( gl.TEXTURE0 );
		gl.uniform1i( uniforms.map, 0 );

		var oldFogType = 0;
		var sceneFogType = 0;
		var fog = scene.fog;

		if ( fog ) {

			gl.uniform3f( uniforms.fogColor, fog.color.r, fog.color.g, fog.color.b );

			if ( fog instanceof THREE.Fog ) {

				gl.uniform1f( uniforms.fogNear, fog.near );
				gl.uniform1f( uniforms.fogFar, fog.far );

				gl.uniform1i( uniforms.fogType, 1 );
				oldFogType = 1;
				sceneFogType = 1;

			} else if ( fog instanceof THREE.FogExp2 ) {

				gl.uniform1f( uniforms.fogDensity, fog.density );

				gl.uniform1i( uniforms.fogType, 2 );
				oldFogType = 2;
				sceneFogType = 2;

			}

		} else {

			gl.uniform1i( uniforms.fogType, 0 );
			oldFogType = 0;
			sceneFogType = 0;

		}


		// update positions and sort

		for ( var i = 0, l = sprites.length; i < l; i ++ ) {

			var sprite = sprites[ i ];

			sprite.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, sprite.matrixWorld );
			sprite.z = - sprite.modelViewMatrix.elements[ 14 ];

		}

		sprites.sort( painterSortStable );

		// render all sprites

		var scale = [];

		for ( var i = 0, l = sprites.length; i < l; i ++ ) {

			var sprite = sprites[ i ];
			var material = sprite.material;

			gl.uniform1f( uniforms.alphaTest, material.alphaTest );
			gl.uniformMatrix4fv( uniforms.modelViewMatrix, false, sprite.modelViewMatrix.elements );

			sprite.matrixWorld.decompose( spritePosition, spriteRotation, spriteScale );

			scale[ 0 ] = spriteScale.x;
			scale[ 1 ] = spriteScale.y;

			var fogType = 0;

			if ( scene.fog && material.fog ) {

				fogType = sceneFogType;

			}

			if ( oldFogType !== fogType ) {

				gl.uniform1i( uniforms.fogType, fogType );
				oldFogType = fogType;

			}

			if ( material.map !== null ) {

				gl.uniform2f( uniforms.uvOffset, material.map.offset.x, material.map.offset.y );
				gl.uniform2f( uniforms.uvScale, material.map.repeat.x, material.map.repeat.y );

			} else {

				gl.uniform2f( uniforms.uvOffset, 0, 0 );
				gl.uniform2f( uniforms.uvScale, 1, 1 );

			}

			gl.uniform1f( uniforms.opacity, material.opacity );
			gl.uniform3f( uniforms.color, material.color.r, material.color.g, material.color.b );

			gl.uniform1f( uniforms.rotation, material.rotation );
			gl.uniform2fv( uniforms.scale, scale );

			state.setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst );
			state.setDepthTest( material.depthTest );
			state.setDepthWrite( material.depthWrite );

			if ( material.map && material.map.image && material.map.image.width ) {

				renderer.setTexture( material.map, 0 );

			} else {

				renderer.setTexture( texture, 0 );

			}

			gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );

		}

		// restore gl

		state.enable( gl.CULL_FACE );

		renderer.resetGLState();

	};

	function createProgram () {

		var program = gl.createProgram();

		var vertexShader = gl.createShader( gl.VERTEX_SHADER );
		var fragmentShader = gl.createShader( gl.FRAGMENT_SHADER );

		gl.shaderSource( vertexShader, [

			'precision ' + renderer.getPrecision() + ' float;',

			'uniform mat4 modelViewMatrix;',
			'uniform mat4 projectionMatrix;',
			'uniform float rotation;',
			'uniform vec2 scale;',
			'uniform vec2 uvOffset;',
			'uniform vec2 uvScale;',

			'attribute vec2 position;',
			'attribute vec2 uv;',

			'varying vec2 vUV;',

			'void main() {',

				'vUV = uvOffset + uv * uvScale;',

				'vec2 alignedPosition = position * scale;',

				'vec2 rotatedPosition;',
				'rotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;',
				'rotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;',

				'vec4 finalPosition;',

				'finalPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );',
				'finalPosition.xy += rotatedPosition;',
				'finalPosition = projectionMatrix * finalPosition;',

				'gl_Position = finalPosition;',

			'}'

		].join( '\n' ) );

		gl.shaderSource( fragmentShader, [

			'precision ' + renderer.getPrecision() + ' float;',

			'uniform vec3 color;',
			'uniform sampler2D map;',
			'uniform float opacity;',

			'uniform int fogType;',
			'uniform vec3 fogColor;',
			'uniform float fogDensity;',
			'uniform float fogNear;',
			'uniform float fogFar;',
			'uniform float alphaTest;',

			'varying vec2 vUV;',

			'void main() {',

				'vec4 texture = texture2D( map, vUV );',

				'if ( texture.a < alphaTest ) discard;',

				'gl_FragColor = vec4( color * texture.xyz, texture.a * opacity );',

				'if ( fogType > 0 ) {',

					'float depth = gl_FragCoord.z / gl_FragCoord.w;',
					'float fogFactor = 0.0;',

					'if ( fogType == 1 ) {',

						'fogFactor = smoothstep( fogNear, fogFar, depth );',

					'} else {',

						'const float LOG2 = 1.442695;',
						'fogFactor = exp2( - fogDensity * fogDensity * depth * depth * LOG2 );',
						'fogFactor = 1.0 - clamp( fogFactor, 0.0, 1.0 );',

					'}',

					'gl_FragColor = mix( gl_FragColor, vec4( fogColor, gl_FragColor.w ), fogFactor );',

				'}',

			'}'

		].join( '\n' ) );

		gl.compileShader( vertexShader );
		gl.compileShader( fragmentShader );

		gl.attachShader( program, vertexShader );
		gl.attachShader( program, fragmentShader );

		gl.linkProgram( program );

		return program;

	}

	function painterSortStable ( a, b ) {

		if ( a.z !== b.z ) {

			return b.z - a.z;

		} else {

			return b.id - a.id;

		}

	}

};

// File:src/Three.Legacy.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

Object.defineProperties( THREE.Box2.prototype, {
	empty: {
		value: function () {
			console.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' );
			return this.isEmpty();
		}
	},
	isIntersectionBox: {
		value: function ( box ) {
			console.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' );
			return this.intersectsBox( box );
		}
	}
} );

Object.defineProperties( THREE.Box3.prototype, {
	empty: {
		value: function () {
			console.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' );
			return this.isEmpty();
		}
	},
	isIntersectionBox: {
		value: function ( box ) {
			console.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' );
			return this.intersectsBox( box );
		}
	},
	isIntersectionSphere: {
		value: function ( sphere ) {
			console.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
			return this.intersectsSphere( sphere );
		}
	}
} );

Object.defineProperties( THREE.Matrix3.prototype, {
	multiplyVector3: {
		value: function ( vector ) {
			console.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' );
			return vector.applyMatrix3( this );
		}
	},
	multiplyVector3Array: {
		value: function ( a ) {
			console.warn( 'THREE.Matrix3: .multiplyVector3Array() has been renamed. Use matrix.applyToVector3Array( array ) instead.' );
			return this.applyToVector3Array( a );
		}
	}
} );

Object.defineProperties( THREE.Matrix4.prototype, {
	extractPosition: {
		value: function ( m ) {
			console.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' );
			return this.copyPosition( m );
		}
	},
	setRotationFromQuaternion: {
		value: function ( q ) {
			console.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' );
			return this.makeRotationFromQuaternion( q );
		}
	},
	multiplyVector3: {
		value: function ( vector ) {
			console.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) or vector.applyProjection( matrix ) instead.' );
			return vector.applyProjection( this );
		}
	},
	multiplyVector4: {
		value: function ( vector ) {
			console.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
			return vector.applyMatrix4( this );
		}
	},
	multiplyVector3Array: {
		value: function ( a ) {
			console.warn( 'THREE.Matrix4: .multiplyVector3Array() has been renamed. Use matrix.applyToVector3Array( array ) instead.' );
			return this.applyToVector3Array( a );
		}
	},
	rotateAxis: {
		value: function ( v ) {
			console.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' );
			v.transformDirection( this );
		}
	},
	crossVector: {
		value: function ( vector ) {
			console.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
			return vector.applyMatrix4( this );
		}
	},
	translate: {
		value: function ( v ) {
			console.error( 'THREE.Matrix4: .translate() has been removed.' );
		}
	},
	rotateX: {
		value: function ( angle ) {
			console.error( 'THREE.Matrix4: .rotateX() has been removed.' );
		}
	},
	rotateY: {
		value: function ( angle ) {
			console.error( 'THREE.Matrix4: .rotateY() has been removed.' );
		}
	},
	rotateZ: {
		value: function ( angle ) {
			console.error( 'THREE.Matrix4: .rotateZ() has been removed.' );
		}
	},
	rotateByAxis: {
		value: function ( axis, angle ) {
			console.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' );
		}
	}
} );

Object.defineProperties( THREE.Plane.prototype, {
	isIntersectionLine: {
		value: function ( line ) {
			console.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' );
			return this.intersectsLine( line );
		}
	}
} );

Object.defineProperties( THREE.Quaternion.prototype, {
	multiplyVector3: {
		value: function ( vector ) {
			console.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );
			return vector.applyQuaternion( this );
		}
	}
} );

Object.defineProperties( THREE.Ray.prototype, {
	isIntersectionBox: {
		value: function ( box ) {
			console.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' );
			return this.intersectsBox( box );
		}
	},
	isIntersectionPlane: {
		value: function ( plane ) {
			console.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' );
			return this.intersectsPlane( plane );
		}
	},
	isIntersectionSphere: {
		value: function ( sphere ) {
			console.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
			return this.intersectsSphere( sphere );
		}
	}
} );

Object.defineProperties( THREE.Vector3.prototype, {
	setEulerFromRotationMatrix: {
		value: function () {
			console.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' );
		}
	},
	setEulerFromQuaternion: {
		value: function () {
			console.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' );
		}
	},
	getPositionFromMatrix: {
		value: function ( m ) {
			console.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' );
			return this.setFromMatrixPosition( m );
		}
	},
	getScaleFromMatrix: {
		value: function ( m ) {
			console.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' );
			return this.setFromMatrixScale( m );
		}
	},
	getColumnFromMatrix: {
		value: function ( index, matrix ) {
			console.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' );
			return this.setFromMatrixColumn( index, matrix );
		}
	}
} );

//

Object.defineProperties( THREE.Object3D.prototype, {
	eulerOrder: {
		get: function () {
			console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
			return this.rotation.order;
		},
		set: function ( value ) {
			console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
			this.rotation.order = value;
		}
	},
	getChildByName: {
		value: function ( name ) {
			console.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' );
			return this.getObjectByName( name );
		}
	},
	renderDepth: {
		set: function ( value ) {
			console.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' );
		}
	},
	translate: {
		value: function ( distance, axis ) {
			console.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' );
			return this.translateOnAxis( axis, distance );
		}
	},
	useQuaternion: {
		get: function () {
			console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );
		},
		set: function ( value ) {
			console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );
		}
	}
} );

//

Object.defineProperties( THREE, {
	PointCloud: {
		value: function ( geometry, material ) {
			console.warn( 'THREE.PointCloud has been renamed to THREE.Points.' );
			return new THREE.Points( geometry, material );
		}
	},
	ParticleSystem: {
		value: function ( geometry, material ) {
			console.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' );
			return new THREE.Points( geometry, material );
		}
	}
} );

//

Object.defineProperties( THREE.Light.prototype, {
	onlyShadow: {
		set: function ( value ) {
			console.warn( 'THREE.Light: .onlyShadow has been removed.' );
		}
	},
	shadowCameraFov: {
		set: function ( value ) {
			this.shadow.camera.fov = value;
		}
	},
	shadowCameraLeft: {
		set: function ( value ) {
			this.shadow.camera.left = value;
		}
	},
	shadowCameraRight: {
		set: function ( value ) {
			this.shadow.camera.right = value;
		}
	},
	shadowCameraTop: {
		set: function ( value ) {
			this.shadow.camera.top = value;
		}
	},
	shadowCameraBottom: {
		set: function ( value ) {
			this.shadow.camera.bottom = value;
		}
	},
	shadowCameraNear: {
		set: function ( value ) {
			this.shadow.camera.near = value;
		}
	},
	shadowCameraFar: {
		set: function ( value ) {
			this.shadow.camera.far = value;
		}
	},
	shadowCameraVisible: {
		set: function ( value ) {
			console.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' );
		}
	},
	shadowBias: {
		set: function ( value ) {
			this.shadow.bias = value;
		}
	},
	shadowDarkness: {
		set: function ( value ) {
			this.shadow.darkness = value;
		}
	},
	shadowMapWidth: {
		set: function ( value ) {
			this.shadow.mapSize.width = value;
		}
	},
	shadowMapHeight: {
		set: function ( value ) {
			this.shadow.mapSize.height = value;
		}
	}
} );

//

Object.defineProperties( THREE.BufferAttribute.prototype, {
	length: {
		get: function () {
			console.warn( 'THREE.BufferAttribute: .length has been deprecated. Please use .count.' );
			return this.array.length;
		}
	}
} );

Object.defineProperties( THREE.BufferGeometry.prototype, {
	drawcalls: {
		get: function () {
			console.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' );
			return this.groups;
		}
	},
	offsets: {
		get: function () {
			console.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' );
			return this.groups;
		}
	},
	addIndex: {
		value: function ( index ) {
			console.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' );
			this.setIndex( index );
		}
	},
	addDrawCall: {
		value: function ( start, count, indexOffset ) {
			if ( indexOffset !== undefined ) {
				console.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' );
			}
			console.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' );
			this.addGroup( start, count );
		}
	},
	clearDrawCalls: {
		value: function () {
			console.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' );
			this.clearGroups();
		}
	},
	computeTangents: {
		value: function () {
			console.warn( 'THREE.BufferGeometry: .computeTangents() has been removed.' );
		}
	},
	computeOffsets: {
		value: function () {
			console.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' );
		}
	}
} );

//

Object.defineProperties( THREE.Material.prototype, {
	wrapAround: {
		get: function () {
			console.warn( 'THREE.' + this.type + ': .wrapAround has been removed.' );
		},
		set: function ( value ) {
			console.warn( 'THREE.' + this.type + ': .wrapAround has been removed.' );
		}
	},
	wrapRGB: {
		get: function () {
			console.warn( 'THREE.' + this.type + ': .wrapRGB has been removed.' );
			return new THREE.Color();
		}
	}
} );

Object.defineProperties( THREE, {
	PointCloudMaterial: {
		value: function ( parameters ) {
			console.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' );
			return new THREE.PointsMaterial( parameters );
		}
	},
	ParticleBasicMaterial: {
		value: function ( parameters ) {
			console.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' );
			return new THREE.PointsMaterial( parameters );
		}
	},
	ParticleSystemMaterial:{
		value: function ( parameters ) {
			console.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' );
			return new THREE.PointsMaterial( parameters );
		}
	}
} );

Object.defineProperties( THREE.MeshPhongMaterial.prototype, {
	metal: {
		get: function () {
			console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.' );
			return false;
		},
		set: function ( value ) {
			console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead' );
		}
	}
} );

Object.defineProperties( THREE.ShaderMaterial.prototype, {
	derivatives: {
		get: function () {
			console.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
			return this.extensions.derivatives;
		},
		set: function ( value ) {
			console.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
			this.extensions.derivatives = value;
		}
	}
} );

//

Object.defineProperties( THREE.WebGLRenderer.prototype, {
	supportsFloatTextures: {
		value: function () {
			console.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).' );
			return this.extensions.get( 'OES_texture_float' );
		}
	},
	supportsHalfFloatTextures: {
		value: function () {
			console.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).' );
			return this.extensions.get( 'OES_texture_half_float' );
		}
	},
	supportsStandardDerivatives: {
		value: function () {
			console.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).' );
			return this.extensions.get( 'OES_standard_derivatives' );
		}
	},
	supportsCompressedTextureS3TC: {
		value: function () {
			console.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).' );
			return this.extensions.get( 'WEBGL_compressed_texture_s3tc' );
		}
	},
	supportsCompressedTexturePVRTC: {
		value: function () {
			console.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).' );
			return this.extensions.get( 'WEBGL_compressed_texture_pvrtc' );
		}
	},
	supportsBlendMinMax: {
		value: function () {
			console.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).' );
			return this.extensions.get( 'EXT_blend_minmax' );
		}
	},
	supportsVertexTextures: {
		value: function () {
			return this.capabilities.vertexTextures;
		}
	},
	supportsInstancedArrays: {
		value: function () {
			console.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).' );
			return this.extensions.get( 'ANGLE_instanced_arrays' );
		}
	},
	enableScissorTest: {
		value: function ( boolean ) {
			console.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' );
			this.setScissorTest( boolean );
		}
	},
	initMaterial: {
		value: function () {
			console.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' );
		}
	},
	addPrePlugin: {
		value: function () {
			console.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' );
		}
	},
	addPostPlugin: {
		value: function () {
			console.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' );
		}
	},
	updateShadowMap: {
		value: function () {
			console.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' );
		}
	},
	shadowMapEnabled: {
		get: function () {
			return this.shadowMap.enabled;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' );
			this.shadowMap.enabled = value;
		}
	},
	shadowMapType: {
		get: function () {
			return this.shadowMap.type;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' );
			this.shadowMap.type = value;
		}
	},
	shadowMapCullFace: {
		get: function () {
			return this.shadowMap.cullFace;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace is now .shadowMap.cullFace.' );
			this.shadowMap.cullFace = value;
		}
	},
	shadowMapDebug: {
		get: function () {
			return this.shadowMap.debug;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderer: .shadowMapDebug is now .shadowMap.debug.' );
			this.shadowMap.debug = value;
		}
	}
} );

//

Object.defineProperties( THREE.WebGLRenderTarget.prototype, {
	wrapS: {
		get: function () {
			console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
			return this.texture.wrapS;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
			this.texture.wrapS = value;
		}
	},
	wrapT: {
		get: function () {
			console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
			return this.texture.wrapT;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
			this.texture.wrapT = value;
		}
	},
	magFilter: {
		get: function () {
			console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
			return this.texture.magFilter;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
			this.texture.magFilter = value;
		}
	},
	minFilter: {
		get: function () {
			console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
			return this.texture.minFilter;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
			this.texture.minFilter = value;
		}
	},
	anisotropy: {
		get: function () {
			console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
			return this.texture.anisotropy;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
			this.texture.anisotropy = value;
		}
	},
	offset: {
		get: function () {
			console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
			return this.texture.offset;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
			this.texture.offset = value;
		}
	},
	repeat: {
		get: function () {
			console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
			return this.texture.repeat;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
			this.texture.repeat = value;
		}
	},
	format: {
		get: function () {
			console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
			return this.texture.format;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
			this.texture.format = value;
		}
	},
	type: {
		get: function () {
			console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
			return this.texture.type;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
			this.texture.type = value;
		}
	},
	generateMipmaps: {
		get: function () {
			console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
			return this.texture.generateMipmaps;
		},
		set: function ( value ) {
			console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
			this.texture.generateMipmaps = value;
		}
	}
} );

//

THREE.GeometryUtils = {

	merge: function ( geometry1, geometry2, materialIndexOffset ) {

		console.warn( 'THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.' );

		var matrix;

		if ( geometry2 instanceof THREE.Mesh ) {

			geometry2.matrixAutoUpdate && geometry2.updateMatrix();

			matrix = geometry2.matrix;
			geometry2 = geometry2.geometry;

		}

		geometry1.merge( geometry2, matrix, materialIndexOffset );

	},

	center: function ( geometry ) {

		console.warn( 'THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.' );
		return geometry.center();

	}

};

THREE.ImageUtils = {

	crossOrigin: undefined,

	loadTexture: function ( url, mapping, onLoad, onError ) {

		console.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' );

		var loader = new THREE.TextureLoader();
		loader.setCrossOrigin( this.crossOrigin );

		var texture = loader.load( url, onLoad, undefined, onError );

		if ( mapping ) texture.mapping = mapping;

		return texture;

	},

	loadTextureCube: function ( urls, mapping, onLoad, onError ) {

		console.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' );

		var loader = new THREE.CubeTextureLoader();
		loader.setCrossOrigin( this.crossOrigin );

		var texture = loader.load( urls, onLoad, undefined, onError );

		if ( mapping ) texture.mapping = mapping;

		return texture;

	},

	loadCompressedTexture: function () {

		console.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' )

	},

	loadCompressedTextureCube: function () {

		console.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' )

	}

};

//

THREE.Projector = function () {

	console.error( 'THREE.Projector has been moved to /examples/js/renderers/Projector.js.' );

	this.projectVector = function ( vector, camera ) {

		console.warn( 'THREE.Projector: .projectVector() is now vector.project().' );
		vector.project( camera );

	};

	this.unprojectVector = function ( vector, camera ) {

		console.warn( 'THREE.Projector: .unprojectVector() is now vector.unproject().' );
		vector.unproject( camera );

	};

	this.pickingRay = function ( vector, camera ) {

		console.error( 'THREE.Projector: .pickingRay() is now raycaster.setFromCamera().' );

	};

};

//

THREE.CanvasRenderer = function () {

	console.error( 'THREE.CanvasRenderer has been moved to /examples/js/renderers/CanvasRenderer.js' );

	this.domElement = document.createElement( 'canvas' );
	this.clear = function () {};
	this.render = function () {};
	this.setClearColor = function () {};
	this.setSize = function () {};

};

//

THREE.TextGeometry = function () {

	console.error( 'THREE.TextGeometry has been moved to /examples/js/geometries/TextGeometry.js' );
	console.error( 'THREE.FontUtils has been moved to /examples/js/utils/FontUtils.js' );

};

//

THREE.MeshFaceMaterial = THREE.MultiMaterial;

// File:src/extras/CurveUtils.js

/**
 * @author zz85 / http://www.lab4games.net/zz85/blog
 */

THREE.CurveUtils = {

	tangentQuadraticBezier: function ( t, p0, p1, p2 ) {

		return 2 * ( 1 - t ) * ( p1 - p0 ) + 2 * t * ( p2 - p1 );

	},

	// Puay Bing, thanks for helping with this derivative!

	tangentCubicBezier: function ( t, p0, p1, p2, p3 ) {

		return - 3 * p0 * ( 1 - t ) * ( 1 - t )  +
			3 * p1 * ( 1 - t ) * ( 1 - t ) - 6 * t * p1 * ( 1 - t ) +
			6 * t *  p2 * ( 1 - t ) - 3 * t * t * p2 +
			3 * t * t * p3;

	},

	tangentSpline: function ( t, p0, p1, p2, p3 ) {

		// To check if my formulas are correct

		var h00 = 6 * t * t - 6 * t; 	// derived from 2t^3 − 3t^2 + 1
		var h10 = 3 * t * t - 4 * t + 1; // t^3 − 2t^2 + t
		var h01 = - 6 * t * t + 6 * t; 	// − 2t3 + 3t2
		var h11 = 3 * t * t - 2 * t;	// t3 − t2

		return h00 + h10 + h01 + h11;

	},

	// Catmull-Rom

	interpolate: function( p0, p1, p2, p3, t ) {

		var v0 = ( p2 - p0 ) * 0.5;
		var v1 = ( p3 - p1 ) * 0.5;
		var t2 = t * t;
		var t3 = t * t2;
		return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;

	}

};

// File:src/extras/SceneUtils.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.SceneUtils = {

	createMultiMaterialObject: function ( geometry, materials ) {

		var group = new THREE.Group();

		for ( var i = 0, l = materials.length; i < l; i ++ ) {

			group.add( new THREE.Mesh( geometry, materials[ i ] ) );

		}

		return group;

	},

	detach: function ( child, parent, scene ) {

		child.applyMatrix( parent.matrixWorld );
		parent.remove( child );
		scene.add( child );

	},

	attach: function ( child, scene, parent ) {

		var matrixWorldInverse = new THREE.Matrix4();
		matrixWorldInverse.getInverse( parent.matrixWorld );
		child.applyMatrix( matrixWorldInverse );

		scene.remove( child );
		parent.add( child );

	}

};

// File:src/extras/ShapeUtils.js

/**
 * @author zz85 / http://www.lab4games.net/zz85/blog
 */

THREE.ShapeUtils = {

	// calculate area of the contour polygon

	area: function ( contour ) {

		var n = contour.length;
		var a = 0.0;

		for ( var p = n - 1, q = 0; q < n; p = q ++ ) {

			a += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y;

		}

		return a * 0.5;

	},

	triangulate: ( function () {

		/**
		 * This code is a quick port of code written in C++ which was submitted to
		 * flipcode.com by John W. Ratcliff  // July 22, 2000
		 * See original code and more information here:
		 * http://www.flipcode.com/archives/Efficient_Polygon_Triangulation.shtml
		 *
		 * ported to actionscript by Zevan Rosser
		 * www.actionsnippet.com
		 *
		 * ported to javascript by Joshua Koo
		 * http://www.lab4games.net/zz85/blog
		 *
		 */

		function snip( contour, u, v, w, n, verts ) {

			var p;
			var ax, ay, bx, by;
			var cx, cy, px, py;

			ax = contour[ verts[ u ] ].x;
			ay = contour[ verts[ u ] ].y;

			bx = contour[ verts[ v ] ].x;
			by = contour[ verts[ v ] ].y;

			cx = contour[ verts[ w ] ].x;
			cy = contour[ verts[ w ] ].y;

			if ( Number.EPSILON > ( ( ( bx - ax ) * ( cy - ay ) ) - ( ( by - ay ) * ( cx - ax ) ) ) ) return false;

			var aX, aY, bX, bY, cX, cY;
			var apx, apy, bpx, bpy, cpx, cpy;
			var cCROSSap, bCROSScp, aCROSSbp;

			aX = cx - bx;  aY = cy - by;
			bX = ax - cx;  bY = ay - cy;
			cX = bx - ax;  cY = by - ay;

			for ( p = 0; p < n; p ++ ) {

				px = contour[ verts[ p ] ].x;
				py = contour[ verts[ p ] ].y;

				if ( ( ( px === ax ) && ( py === ay ) ) ||
					 ( ( px === bx ) && ( py === by ) ) ||
					 ( ( px === cx ) && ( py === cy ) ) )	continue;

				apx = px - ax;  apy = py - ay;
				bpx = px - bx;  bpy = py - by;
				cpx = px - cx;  cpy = py - cy;

				// see if p is inside triangle abc

				aCROSSbp = aX * bpy - aY * bpx;
				cCROSSap = cX * apy - cY * apx;
				bCROSScp = bX * cpy - bY * cpx;

				if ( ( aCROSSbp >= - Number.EPSILON ) && ( bCROSScp >= - Number.EPSILON ) && ( cCROSSap >= - Number.EPSILON ) ) return false;

			}

			return true;

		}

		// takes in an contour array and returns

		return function ( contour, indices ) {

			var n = contour.length;

			if ( n < 3 ) return null;

			var result = [],
				verts = [],
				vertIndices = [];

			/* we want a counter-clockwise polygon in verts */

			var u, v, w;

			if ( THREE.ShapeUtils.area( contour ) > 0.0 ) {

				for ( v = 0; v < n; v ++ ) verts[ v ] = v;

			} else {

				for ( v = 0; v < n; v ++ ) verts[ v ] = ( n - 1 ) - v;

			}

			var nv = n;

			/*  remove nv - 2 vertices, creating 1 triangle every time */

			var count = 2 * nv;   /* error detection */

			for ( v = nv - 1; nv > 2; ) {

				/* if we loop, it is probably a non-simple polygon */

				if ( ( count -- ) <= 0 ) {

					//** Triangulate: ERROR - probable bad polygon!

					//throw ( "Warning, unable to triangulate polygon!" );
					//return null;
					// Sometimes warning is fine, especially polygons are triangulated in reverse.
					console.warn( 'THREE.ShapeUtils: Unable to triangulate polygon! in triangulate()' );

					if ( indices ) return vertIndices;
					return result;

				}

				/* three consecutive vertices in current polygon, <u,v,w> */

				u = v; 	 	if ( nv <= u ) u = 0;     /* previous */
				v = u + 1;  if ( nv <= v ) v = 0;     /* new v    */
				w = v + 1;  if ( nv <= w ) w = 0;     /* next     */

				if ( snip( contour, u, v, w, nv, verts ) ) {

					var a, b, c, s, t;

					/* true names of the vertices */

					a = verts[ u ];
					b = verts[ v ];
					c = verts[ w ];

					/* output Triangle */

					result.push( [ contour[ a ],
						contour[ b ],
						contour[ c ] ] );


					vertIndices.push( [ verts[ u ], verts[ v ], verts[ w ] ] );

					/* remove v from the remaining polygon */

					for ( s = v, t = v + 1; t < nv; s ++, t ++ ) {

						verts[ s ] = verts[ t ];

					}

					nv --;

					/* reset error detection counter */

					count = 2 * nv;

				}

			}

			if ( indices ) return vertIndices;
			return result;

		}

	} )(),

	triangulateShape: function ( contour, holes ) {

		function point_in_segment_2D_colin( inSegPt1, inSegPt2, inOtherPt ) {

			// inOtherPt needs to be collinear to the inSegment
			if ( inSegPt1.x !== inSegPt2.x ) {

				if ( inSegPt1.x < inSegPt2.x ) {

					return	( ( inSegPt1.x <= inOtherPt.x ) && ( inOtherPt.x <= inSegPt2.x ) );

				} else {

					return	( ( inSegPt2.x <= inOtherPt.x ) && ( inOtherPt.x <= inSegPt1.x ) );

				}

			} else {

				if ( inSegPt1.y < inSegPt2.y ) {

					return	( ( inSegPt1.y <= inOtherPt.y ) && ( inOtherPt.y <= inSegPt2.y ) );

				} else {

					return	( ( inSegPt2.y <= inOtherPt.y ) && ( inOtherPt.y <= inSegPt1.y ) );

				}

			}

		}

		function intersect_segments_2D( inSeg1Pt1, inSeg1Pt2, inSeg2Pt1, inSeg2Pt2, inExcludeAdjacentSegs ) {

			var seg1dx = inSeg1Pt2.x - inSeg1Pt1.x,   seg1dy = inSeg1Pt2.y - inSeg1Pt1.y;
			var seg2dx = inSeg2Pt2.x - inSeg2Pt1.x,   seg2dy = inSeg2Pt2.y - inSeg2Pt1.y;

			var seg1seg2dx = inSeg1Pt1.x - inSeg2Pt1.x;
			var seg1seg2dy = inSeg1Pt1.y - inSeg2Pt1.y;

			var limit		= seg1dy * seg2dx - seg1dx * seg2dy;
			var perpSeg1	= seg1dy * seg1seg2dx - seg1dx * seg1seg2dy;

			if ( Math.abs( limit ) > Number.EPSILON ) {

				// not parallel

				var perpSeg2;
				if ( limit > 0 ) {

					if ( ( perpSeg1 < 0 ) || ( perpSeg1 > limit ) ) 		return [];
					perpSeg2 = seg2dy * seg1seg2dx - seg2dx * seg1seg2dy;
					if ( ( perpSeg2 < 0 ) || ( perpSeg2 > limit ) ) 		return [];

				} else {

					if ( ( perpSeg1 > 0 ) || ( perpSeg1 < limit ) ) 		return [];
					perpSeg2 = seg2dy * seg1seg2dx - seg2dx * seg1seg2dy;
					if ( ( perpSeg2 > 0 ) || ( perpSeg2 < limit ) ) 		return [];

				}

				// i.e. to reduce rounding errors
				// intersection at endpoint of segment#1?
				if ( perpSeg2 === 0 ) {

					if ( ( inExcludeAdjacentSegs ) &&
						 ( ( perpSeg1 === 0 ) || ( perpSeg1 === limit ) ) )		return [];
					return [ inSeg1Pt1 ];

				}
				if ( perpSeg2 === limit ) {

					if ( ( inExcludeAdjacentSegs ) &&
						 ( ( perpSeg1 === 0 ) || ( perpSeg1 === limit ) ) )		return [];
					return [ inSeg1Pt2 ];

				}
				// intersection at endpoint of segment#2?
				if ( perpSeg1 === 0 )		return [ inSeg2Pt1 ];
				if ( perpSeg1 === limit )	return [ inSeg2Pt2 ];

				// return real intersection point
				var factorSeg1 = perpSeg2 / limit;
				return	[ { x: inSeg1Pt1.x + factorSeg1 * seg1dx,
							y: inSeg1Pt1.y + factorSeg1 * seg1dy } ];

			} else {

				// parallel or collinear
				if ( ( perpSeg1 !== 0 ) ||
					 ( seg2dy * seg1seg2dx !== seg2dx * seg1seg2dy ) ) 			return [];

				// they are collinear or degenerate
				var seg1Pt = ( ( seg1dx === 0 ) && ( seg1dy === 0 ) );	// segment1 is just a point?
				var seg2Pt = ( ( seg2dx === 0 ) && ( seg2dy === 0 ) );	// segment2 is just a point?
				// both segments are points
				if ( seg1Pt && seg2Pt ) {

					if ( ( inSeg1Pt1.x !== inSeg2Pt1.x ) ||
						 ( inSeg1Pt1.y !== inSeg2Pt1.y ) )		return [];	// they are distinct  points
					return [ inSeg1Pt1 ];                 						// they are the same point

				}
				// segment#1  is a single point
				if ( seg1Pt ) {

					if ( ! point_in_segment_2D_colin( inSeg2Pt1, inSeg2Pt2, inSeg1Pt1 ) )		return [];		// but not in segment#2
					return [ inSeg1Pt1 ];

				}
				// segment#2  is a single point
				if ( seg2Pt ) {

					if ( ! point_in_segment_2D_colin( inSeg1Pt1, inSeg1Pt2, inSeg2Pt1 ) )		return [];		// but not in segment#1
					return [ inSeg2Pt1 ];

				}

				// they are collinear segments, which might overlap
				var seg1min, seg1max, seg1minVal, seg1maxVal;
				var seg2min, seg2max, seg2minVal, seg2maxVal;
				if ( seg1dx !== 0 ) {

					// the segments are NOT on a vertical line
					if ( inSeg1Pt1.x < inSeg1Pt2.x ) {

						seg1min = inSeg1Pt1; seg1minVal = inSeg1Pt1.x;
						seg1max = inSeg1Pt2; seg1maxVal = inSeg1Pt2.x;

					} else {

						seg1min = inSeg1Pt2; seg1minVal = inSeg1Pt2.x;
						seg1max = inSeg1Pt1; seg1maxVal = inSeg1Pt1.x;

					}
					if ( inSeg2Pt1.x < inSeg2Pt2.x ) {

						seg2min = inSeg2Pt1; seg2minVal = inSeg2Pt1.x;
						seg2max = inSeg2Pt2; seg2maxVal = inSeg2Pt2.x;

					} else {

						seg2min = inSeg2Pt2; seg2minVal = inSeg2Pt2.x;
						seg2max = inSeg2Pt1; seg2maxVal = inSeg2Pt1.x;

					}

				} else {

					// the segments are on a vertical line
					if ( inSeg1Pt1.y < inSeg1Pt2.y ) {

						seg1min = inSeg1Pt1; seg1minVal = inSeg1Pt1.y;
						seg1max = inSeg1Pt2; seg1maxVal = inSeg1Pt2.y;

					} else {

						seg1min = inSeg1Pt2; seg1minVal = inSeg1Pt2.y;
						seg1max = inSeg1Pt1; seg1maxVal = inSeg1Pt1.y;

					}
					if ( inSeg2Pt1.y < inSeg2Pt2.y ) {

						seg2min = inSeg2Pt1; seg2minVal = inSeg2Pt1.y;
						seg2max = inSeg2Pt2; seg2maxVal = inSeg2Pt2.y;

					} else {

						seg2min = inSeg2Pt2; seg2minVal = inSeg2Pt2.y;
						seg2max = inSeg2Pt1; seg2maxVal = inSeg2Pt1.y;

					}

				}
				if ( seg1minVal <= seg2minVal ) {

					if ( seg1maxVal <  seg2minVal )	return [];
					if ( seg1maxVal === seg2minVal )	{

						if ( inExcludeAdjacentSegs )		return [];
						return [ seg2min ];

					}
					if ( seg1maxVal <= seg2maxVal )	return [ seg2min, seg1max ];
					return	[ seg2min, seg2max ];

				} else {

					if ( seg1minVal >  seg2maxVal )	return [];
					if ( seg1minVal === seg2maxVal )	{

						if ( inExcludeAdjacentSegs )		return [];
						return [ seg1min ];

					}
					if ( seg1maxVal <= seg2maxVal )	return [ seg1min, seg1max ];
					return	[ seg1min, seg2max ];

				}

			}

		}

		function isPointInsideAngle( inVertex, inLegFromPt, inLegToPt, inOtherPt ) {

			// The order of legs is important

			// translation of all points, so that Vertex is at (0,0)
			var legFromPtX	= inLegFromPt.x - inVertex.x,  legFromPtY	= inLegFromPt.y - inVertex.y;
			var legToPtX	= inLegToPt.x	- inVertex.x,  legToPtY		= inLegToPt.y	- inVertex.y;
			var otherPtX	= inOtherPt.x	- inVertex.x,  otherPtY		= inOtherPt.y	- inVertex.y;

			// main angle >0: < 180 deg.; 0: 180 deg.; <0: > 180 deg.
			var from2toAngle	= legFromPtX * legToPtY - legFromPtY * legToPtX;
			var from2otherAngle	= legFromPtX * otherPtY - legFromPtY * otherPtX;

			if ( Math.abs( from2toAngle ) > Number.EPSILON ) {

				// angle != 180 deg.

				var other2toAngle		= otherPtX * legToPtY - otherPtY * legToPtX;
				// console.log( "from2to: " + from2toAngle + ", from2other: " + from2otherAngle + ", other2to: " + other2toAngle );

				if ( from2toAngle > 0 ) {

					// main angle < 180 deg.
					return	( ( from2otherAngle >= 0 ) && ( other2toAngle >= 0 ) );

				} else {

					// main angle > 180 deg.
					return	( ( from2otherAngle >= 0 ) || ( other2toAngle >= 0 ) );

				}

			} else {

				// angle == 180 deg.
				// console.log( "from2to: 180 deg., from2other: " + from2otherAngle  );
				return	( from2otherAngle > 0 );

			}

		}


		function removeHoles( contour, holes ) {

			var shape = contour.concat(); // work on this shape
			var hole;

			function isCutLineInsideAngles( inShapeIdx, inHoleIdx ) {

				// Check if hole point lies within angle around shape point
				var lastShapeIdx = shape.length - 1;

				var prevShapeIdx = inShapeIdx - 1;
				if ( prevShapeIdx < 0 )			prevShapeIdx = lastShapeIdx;

				var nextShapeIdx = inShapeIdx + 1;
				if ( nextShapeIdx > lastShapeIdx )	nextShapeIdx = 0;

				var insideAngle = isPointInsideAngle( shape[ inShapeIdx ], shape[ prevShapeIdx ], shape[ nextShapeIdx ], hole[ inHoleIdx ] );
				if ( ! insideAngle ) {

					// console.log( "Vertex (Shape): " + inShapeIdx + ", Point: " + hole[inHoleIdx].x + "/" + hole[inHoleIdx].y );
					return	false;

				}

				// Check if shape point lies within angle around hole point
				var lastHoleIdx = hole.length - 1;

				var prevHoleIdx = inHoleIdx - 1;
				if ( prevHoleIdx < 0 )			prevHoleIdx = lastHoleIdx;

				var nextHoleIdx = inHoleIdx + 1;
				if ( nextHoleIdx > lastHoleIdx )	nextHoleIdx = 0;

				insideAngle = isPointInsideAngle( hole[ inHoleIdx ], hole[ prevHoleIdx ], hole[ nextHoleIdx ], shape[ inShapeIdx ] );
				if ( ! insideAngle ) {

					// console.log( "Vertex (Hole): " + inHoleIdx + ", Point: " + shape[inShapeIdx].x + "/" + shape[inShapeIdx].y );
					return	false;

				}

				return	true;

			}

			function intersectsShapeEdge( inShapePt, inHolePt ) {

				// checks for intersections with shape edges
				var sIdx, nextIdx, intersection;
				for ( sIdx = 0; sIdx < shape.length; sIdx ++ ) {

					nextIdx = sIdx + 1; nextIdx %= shape.length;
					intersection = intersect_segments_2D( inShapePt, inHolePt, shape[ sIdx ], shape[ nextIdx ], true );
					if ( intersection.length > 0 )		return	true;

				}

				return	false;

			}

			var indepHoles = [];

			function intersectsHoleEdge( inShapePt, inHolePt ) {

				// checks for intersections with hole edges
				var ihIdx, chkHole,
					hIdx, nextIdx, intersection;
				for ( ihIdx = 0; ihIdx < indepHoles.length; ihIdx ++ ) {

					chkHole = holes[ indepHoles[ ihIdx ]];
					for ( hIdx = 0; hIdx < chkHole.length; hIdx ++ ) {

						nextIdx = hIdx + 1; nextIdx %= chkHole.length;
						intersection = intersect_segments_2D( inShapePt, inHolePt, chkHole[ hIdx ], chkHole[ nextIdx ], true );
						if ( intersection.length > 0 )		return	true;

					}

				}
				return	false;

			}

			var holeIndex, shapeIndex,
				shapePt, holePt,
				holeIdx, cutKey, failedCuts = [],
				tmpShape1, tmpShape2,
				tmpHole1, tmpHole2;

			for ( var h = 0, hl = holes.length; h < hl; h ++ ) {

				indepHoles.push( h );

			}

			var minShapeIndex = 0;
			var counter = indepHoles.length * 2;
			while ( indepHoles.length > 0 ) {

				counter --;
				if ( counter < 0 ) {

					console.log( "Infinite Loop! Holes left:" + indepHoles.length + ", Probably Hole outside Shape!" );
					break;

				}

				// search for shape-vertex and hole-vertex,
				// which can be connected without intersections
				for ( shapeIndex = minShapeIndex; shapeIndex < shape.length; shapeIndex ++ ) {

					shapePt = shape[ shapeIndex ];
					holeIndex	= - 1;

					// search for hole which can be reached without intersections
					for ( var h = 0; h < indepHoles.length; h ++ ) {

						holeIdx = indepHoles[ h ];

						// prevent multiple checks
						cutKey = shapePt.x + ":" + shapePt.y + ":" + holeIdx;
						if ( failedCuts[ cutKey ] !== undefined )			continue;

						hole = holes[ holeIdx ];
						for ( var h2 = 0; h2 < hole.length; h2 ++ ) {

							holePt = hole[ h2 ];
							if ( ! isCutLineInsideAngles( shapeIndex, h2 ) )		continue;
							if ( intersectsShapeEdge( shapePt, holePt ) )		continue;
							if ( intersectsHoleEdge( shapePt, holePt ) )		continue;

							holeIndex = h2;
							indepHoles.splice( h, 1 );

							tmpShape1 = shape.slice( 0, shapeIndex + 1 );
							tmpShape2 = shape.slice( shapeIndex );
							tmpHole1 = hole.slice( holeIndex );
							tmpHole2 = hole.slice( 0, holeIndex + 1 );

							shape = tmpShape1.concat( tmpHole1 ).concat( tmpHole2 ).concat( tmpShape2 );

							minShapeIndex = shapeIndex;

							// Debug only, to show the selected cuts
							// glob_CutLines.push( [ shapePt, holePt ] );

							break;

						}
						if ( holeIndex >= 0 )	break;		// hole-vertex found

						failedCuts[ cutKey ] = true;			// remember failure

					}
					if ( holeIndex >= 0 )	break;		// hole-vertex found

				}

			}

			return shape; 			/* shape with no holes */

		}


		var i, il, f, face,
			key, index,
			allPointsMap = {};

		// To maintain reference to old shape, one must match coordinates, or offset the indices from original arrays. It's probably easier to do the first.

		var allpoints = contour.concat();

		for ( var h = 0, hl = holes.length; h < hl; h ++ ) {

			Array.prototype.push.apply( allpoints, holes[ h ] );

		}

		//console.log( "allpoints",allpoints, allpoints.length );

		// prepare all points map

		for ( i = 0, il = allpoints.length; i < il; i ++ ) {

			key = allpoints[ i ].x + ":" + allpoints[ i ].y;

			if ( allPointsMap[ key ] !== undefined ) {

				console.warn( "THREE.Shape: Duplicate point", key );

			}

			allPointsMap[ key ] = i;

		}

		// remove holes by cutting paths to holes and adding them to the shape
		var shapeWithoutHoles = removeHoles( contour, holes );

		var triangles = THREE.ShapeUtils.triangulate( shapeWithoutHoles, false ); // True returns indices for points of spooled shape
		//console.log( "triangles",triangles, triangles.length );

		// check all face vertices against all points map

		for ( i = 0, il = triangles.length; i < il; i ++ ) {

			face = triangles[ i ];

			for ( f = 0; f < 3; f ++ ) {

				key = face[ f ].x + ":" + face[ f ].y;

				index = allPointsMap[ key ];

				if ( index !== undefined ) {

					face[ f ] = index;

				}

			}

		}

		return triangles.concat();

	},

	isClockWise: function ( pts ) {

		return THREE.ShapeUtils.area( pts ) < 0;

	},

	// Bezier Curves formulas obtained from
	// http://en.wikipedia.org/wiki/B%C3%A9zier_curve

	// Quad Bezier Functions

	b2: ( function () {

		function b2p0( t, p ) {

			var k = 1 - t;
			return k * k * p;

		}

		function b2p1( t, p ) {

			return 2 * ( 1 - t ) * t * p;

		}

		function b2p2( t, p ) {

			return t * t * p;

		}

		return function ( t, p0, p1, p2 ) {

			return b2p0( t, p0 ) + b2p1( t, p1 ) + b2p2( t, p2 );

		};

	} )(),

	// Cubic Bezier Functions

	b3: ( function () {

		function b3p0( t, p ) {

			var k = 1 - t;
			return k * k * k * p;

		}

		function b3p1( t, p ) {

			var k = 1 - t;
			return 3 * k * k * t * p;

		}

		function b3p2( t, p ) {

			var k = 1 - t;
			return 3 * k * t * t * p;

		}

		function b3p3( t, p ) {

			return t * t * t * p;

		}

		return function ( t, p0, p1, p2, p3 ) {

			return b3p0( t, p0 ) + b3p1( t, p1 ) + b3p2( t, p2 ) + b3p3( t, p3 );

		};

	} )()

};

// File:src/extras/core/Curve.js

/**
 * @author zz85 / http://www.lab4games.net/zz85/blog
 * Extensible curve object
 *
 * Some common of Curve methods
 * .getPoint(t), getTangent(t)
 * .getPointAt(u), getTagentAt(u)
 * .getPoints(), .getSpacedPoints()
 * .getLength()
 * .updateArcLengths()
 *
 * This following classes subclasses THREE.Curve:
 *
 * -- 2d classes --
 * THREE.LineCurve
 * THREE.QuadraticBezierCurve
 * THREE.CubicBezierCurve
 * THREE.SplineCurve
 * THREE.ArcCurve
 * THREE.EllipseCurve
 *
 * -- 3d classes --
 * THREE.LineCurve3
 * THREE.QuadraticBezierCurve3
 * THREE.CubicBezierCurve3
 * THREE.SplineCurve3
 * THREE.ClosedSplineCurve3
 *
 * A series of curves can be represented as a THREE.CurvePath
 *
 **/

/**************************************************************
 *	Abstract Curve base class
 **************************************************************/

THREE.Curve = function () {

};

THREE.Curve.prototype = {

	constructor: THREE.Curve,

	// Virtual base class method to overwrite and implement in subclasses
	//	- t [0 .. 1]

	getPoint: function ( t ) {

		console.warn( "THREE.Curve: Warning, getPoint() not implemented!" );
		return null;

	},

	// Get point at relative position in curve according to arc length
	// - u [0 .. 1]

	getPointAt: function ( u ) {

		var t = this.getUtoTmapping( u );
		return this.getPoint( t );

	},

	// Get sequence of points using getPoint( t )

	getPoints: function ( divisions ) {

		if ( ! divisions ) divisions = 5;

		var d, pts = [];

		for ( d = 0; d <= divisions; d ++ ) {

			pts.push( this.getPoint( d / divisions ) );

		}

		return pts;

	},

	// Get sequence of points using getPointAt( u )

	getSpacedPoints: function ( divisions ) {

		if ( ! divisions ) divisions = 5;

		var d, pts = [];

		for ( d = 0; d <= divisions; d ++ ) {

			pts.push( this.getPointAt( d / divisions ) );

		}

		return pts;

	},

	// Get total curve arc length

	getLength: function () {

		var lengths = this.getLengths();
		return lengths[ lengths.length - 1 ];

	},

	// Get list of cumulative segment lengths

	getLengths: function ( divisions ) {

		if ( ! divisions ) divisions = ( this.__arcLengthDivisions ) ? ( this.__arcLengthDivisions ) : 200;

		if ( this.cacheArcLengths
			&& ( this.cacheArcLengths.length === divisions + 1 )
			&& ! this.needsUpdate ) {

			//console.log( "cached", this.cacheArcLengths );
			return this.cacheArcLengths;

		}

		this.needsUpdate = false;

		var cache = [];
		var current, last = this.getPoint( 0 );
		var p, sum = 0;

		cache.push( 0 );

		for ( p = 1; p <= divisions; p ++ ) {

			current = this.getPoint ( p / divisions );
			sum += current.distanceTo( last );
			cache.push( sum );
			last = current;

		}

		this.cacheArcLengths = cache;

		return cache; // { sums: cache, sum:sum }; Sum is in the last element.

	},

	updateArcLengths: function() {

		this.needsUpdate = true;
		this.getLengths();

	},

	// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant

	getUtoTmapping: function ( u, distance ) {

		var arcLengths = this.getLengths();

		var i = 0, il = arcLengths.length;

		var targetArcLength; // The targeted u distance value to get

		if ( distance ) {

			targetArcLength = distance;

		} else {

			targetArcLength = u * arcLengths[ il - 1 ];

		}

		//var time = Date.now();

		// binary search for the index with largest value smaller than target u distance

		var low = 0, high = il - 1, comparison;

		while ( low <= high ) {

			i = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats

			comparison = arcLengths[ i ] - targetArcLength;

			if ( comparison < 0 ) {

				low = i + 1;

			} else if ( comparison > 0 ) {

				high = i - 1;

			} else {

				high = i;
				break;

				// DONE

			}

		}

		i = high;

		//console.log('b' , i, low, high, Date.now()- time);

		if ( arcLengths[ i ] === targetArcLength ) {

			var t = i / ( il - 1 );
			return t;

		}

		// we could get finer grain at lengths, or use simple interpolation between two points

		var lengthBefore = arcLengths[ i ];
		var lengthAfter = arcLengths[ i + 1 ];

		var segmentLength = lengthAfter - lengthBefore;

		// determine where we are between the 'before' and 'after' points

		var segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength;

		// add that fractional amount to t

		var t = ( i + segmentFraction ) / ( il - 1 );

		return t;

	},

	// Returns a unit vector tangent at t
	// In case any sub curve does not implement its tangent derivation,
	// 2 points a small delta apart will be used to find its gradient
	// which seems to give a reasonable approximation

	getTangent: function( t ) {

		var delta = 0.0001;
		var t1 = t - delta;
		var t2 = t + delta;

		// Capping in case of danger

		if ( t1 < 0 ) t1 = 0;
		if ( t2 > 1 ) t2 = 1;

		var pt1 = this.getPoint( t1 );
		var pt2 = this.getPoint( t2 );

		var vec = pt2.clone().sub( pt1 );
		return vec.normalize();

	},

	getTangentAt: function ( u ) {

		var t = this.getUtoTmapping( u );
		return this.getTangent( t );

	}

}

THREE.Curve.Utils = THREE.CurveUtils; // backwards compatibility

// TODO: Transformation for Curves?

/**************************************************************
 *	3D Curves
 **************************************************************/

// A Factory method for creating new curve subclasses

THREE.Curve.create = function ( constructor, getPointFunc ) {

	constructor.prototype = Object.create( THREE.Curve.prototype );
	constructor.prototype.constructor = constructor;
	constructor.prototype.getPoint = getPointFunc;

	return constructor;

};

// File:src/extras/core/CurvePath.js

/**
 * @author zz85 / http://www.lab4games.net/zz85/blog
 *
 **/

/**************************************************************
 *	Curved Path - a curve path is simply a array of connected
 *  curves, but retains the api of a curve
 **************************************************************/

THREE.CurvePath = function () {

	this.curves = [];

	this.autoClose = false; // Automatically closes the path

};

THREE.CurvePath.prototype = Object.create( THREE.Curve.prototype );
THREE.CurvePath.prototype.constructor = THREE.CurvePath;

THREE.CurvePath.prototype.add = function ( curve ) {

	this.curves.push( curve );

};

/*
THREE.CurvePath.prototype.checkConnection = function() {
	// TODO
	// If the ending of curve is not connected to the starting
	// or the next curve, then, this is not a real path
};
*/

THREE.CurvePath.prototype.closePath = function() {

	// TODO Test
	// and verify for vector3 (needs to implement equals)
	// Add a line curve if start and end of lines are not connected
	var startPoint = this.curves[ 0 ].getPoint( 0 );
	var endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 );

	if ( ! startPoint.equals( endPoint ) ) {

		this.curves.push( new THREE.LineCurve( endPoint, startPoint ) );

	}

};

// To get accurate point with reference to
// entire path distance at time t,
// following has to be done:

// 1. Length of each sub path have to be known
// 2. Locate and identify type of curve
// 3. Get t for the curve
// 4. Return curve.getPointAt(t')

THREE.CurvePath.prototype.getPoint = function( t ) {

	var d = t * this.getLength();
	var curveLengths = this.getCurveLengths();
	var i = 0;

	// To think about boundaries points.

	while ( i < curveLengths.length ) {

		if ( curveLengths[ i ] >= d ) {

			var diff = curveLengths[ i ] - d;
			var curve = this.curves[ i ];

			var u = 1 - diff / curve.getLength();

			return curve.getPointAt( u );

		}

		i ++;

	}

	return null;

	// loop where sum != 0, sum > d , sum+1 <d

};

/*
THREE.CurvePath.prototype.getTangent = function( t ) {
};
*/

// We cannot use the default THREE.Curve getPoint() with getLength() because in
// THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
// getPoint() depends on getLength

THREE.CurvePath.prototype.getLength = function() {

	var lens = this.getCurveLengths();
	return lens[ lens.length - 1 ];

};

// Compute lengths and cache them
// We cannot overwrite getLengths() because UtoT mapping uses it.

THREE.CurvePath.prototype.getCurveLengths = function() {

	// We use cache values if curves and cache array are same length

	if ( this.cacheLengths && this.cacheLengths.length === this.curves.length ) {

		return this.cacheLengths;

	}

	// Get length of sub-curve
	// Push sums into cached array

	var lengths = [], sums = 0;

	for ( var i = 0, l = this.curves.length; i < l; i ++ ) {

		sums += this.curves[ i ].getLength();
		lengths.push( sums );

	}

	this.cacheLengths = lengths;

	return lengths;

};



/**************************************************************
 *	Create Geometries Helpers
 **************************************************************/

/// Generate geometry from path points (for Line or Points objects)

THREE.CurvePath.prototype.createPointsGeometry = function( divisions ) {

	var pts = this.getPoints( divisions );
	return this.createGeometry( pts );

};

// Generate geometry from equidistant sampling along the path

THREE.CurvePath.prototype.createSpacedPointsGeometry = function( divisions ) {

	var pts = this.getSpacedPoints( divisions );
	return this.createGeometry( pts );

};

THREE.CurvePath.prototype.createGeometry = function( points ) {

	var geometry = new THREE.Geometry();

	for ( var i = 0, l = points.length; i < l; i ++ ) {

		var point = points[ i ];
		geometry.vertices.push( new THREE.Vector3( point.x, point.y, point.z || 0 ) );

	}

	return geometry;

};

// File:src/extras/core/Path.js

/**
 * @author zz85 / http://www.lab4games.net/zz85/blog
 * Creates free form 2d path using series of points, lines or curves.
 *
 **/

THREE.Path = function ( points ) {

	THREE.CurvePath.call( this );

	this.actions = [];

	if ( points ) {

		this.fromPoints( points );

	}

};

THREE.Path.prototype = Object.create( THREE.CurvePath.prototype );
THREE.Path.prototype.constructor = THREE.Path;

// TODO Clean up PATH API

// Create path using straight lines to connect all points
// - vectors: array of Vector2

THREE.Path.prototype.fromPoints = function ( vectors ) {

	this.moveTo( vectors[ 0 ].x, vectors[ 0 ].y );

	for ( var i = 1, l = vectors.length; i < l; i ++ ) {

		this.lineTo( vectors[ i ].x, vectors[ i ].y );

	}

};

// startPath() endPath()?

THREE.Path.prototype.moveTo = function ( x, y ) {

	this.actions.push( { action: 'moveTo', args: [ x, y ] } );

};

THREE.Path.prototype.lineTo = function ( x, y ) {

	var lastargs = this.actions[ this.actions.length - 1 ].args;

	var x0 = lastargs[ lastargs.length - 2 ];
	var y0 = lastargs[ lastargs.length - 1 ];

	var curve = new THREE.LineCurve( new THREE.Vector2( x0, y0 ), new THREE.Vector2( x, y ) );
	this.curves.push( curve );

	this.actions.push( { action: 'lineTo', args: [ x, y ] } );

};

THREE.Path.prototype.quadraticCurveTo = function( aCPx, aCPy, aX, aY ) {

	var lastargs = this.actions[ this.actions.length - 1 ].args;

	var x0 = lastargs[ lastargs.length - 2 ];
	var y0 = lastargs[ lastargs.length - 1 ];

	var curve = new THREE.QuadraticBezierCurve(
		new THREE.Vector2( x0, y0 ),
		new THREE.Vector2( aCPx, aCPy ),
		new THREE.Vector2( aX, aY )
	);

	this.curves.push( curve );

	this.actions.push( { action: 'quadraticCurveTo', args: [ aCPx, aCPy, aX, aY ] } );

};

THREE.Path.prototype.bezierCurveTo = function( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {

	var lastargs = this.actions[ this.actions.length - 1 ].args;

	var x0 = lastargs[ lastargs.length - 2 ];
	var y0 = lastargs[ lastargs.length - 1 ];

	var curve = new THREE.CubicBezierCurve(
		new THREE.Vector2( x0, y0 ),
		new THREE.Vector2( aCP1x, aCP1y ),
		new THREE.Vector2( aCP2x, aCP2y ),
		new THREE.Vector2( aX, aY )
	);

	this.curves.push( curve );

	this.actions.push( { action: 'bezierCurveTo', args: [ aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ] } );

};

THREE.Path.prototype.splineThru = function( pts /*Array of Vector*/ ) {

	var args = Array.prototype.slice.call( arguments );

	var lastargs = this.actions[ this.actions.length - 1 ].args;

	var x0 = lastargs[ lastargs.length - 2 ];
	var y0 = lastargs[ lastargs.length - 1 ];

	var npts = [ new THREE.Vector2( x0, y0 ) ];
	Array.prototype.push.apply( npts, pts );

	var curve = new THREE.SplineCurve( npts );
	this.curves.push( curve );

	this.actions.push( { action: 'splineThru', args: args } );

};

// FUTURE: Change the API or follow canvas API?

THREE.Path.prototype.arc = function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

	var lastargs = this.actions[ this.actions.length - 1 ].args;
	var x0 = lastargs[ lastargs.length - 2 ];
	var y0 = lastargs[ lastargs.length - 1 ];

	this.absarc( aX + x0, aY + y0, aRadius,
		aStartAngle, aEndAngle, aClockwise );

 };

 THREE.Path.prototype.absarc = function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

	this.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );

 };

THREE.Path.prototype.ellipse = function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

	var lastargs = this.actions[ this.actions.length - 1 ].args;
	var x0 = lastargs[ lastargs.length - 2 ];
	var y0 = lastargs[ lastargs.length - 1 ];

	this.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );

 };


THREE.Path.prototype.absellipse = function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

	var args = [
		aX, aY,
		xRadius, yRadius,
		aStartAngle, aEndAngle,
		aClockwise,
		aRotation || 0 // aRotation is optional.
	];

	var curve = new THREE.EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );
	this.curves.push( curve );

	var lastPoint = curve.getPoint( 1 );
	args.push( lastPoint.x );
	args.push( lastPoint.y );

	this.actions.push( { action: 'ellipse', args: args } );

 };

THREE.Path.prototype.getSpacedPoints = function ( divisions ) {

	if ( ! divisions ) divisions = 40;

	var points = [];

	for ( var i = 0; i < divisions; i ++ ) {

		points.push( this.getPoint( i / divisions ) );

		//if ( !this.getPoint( i / divisions ) ) throw "DIE";

	}

	if ( this.autoClose ) {

		points.push( points[ 0 ] );

	}

	return points;

};

/* Return an array of vectors based on contour of the path */

THREE.Path.prototype.getPoints = function( divisions ) {

	divisions = divisions || 12;

	var b2 = THREE.ShapeUtils.b2;
	var b3 = THREE.ShapeUtils.b3;

	var points = [];

	var cpx, cpy, cpx2, cpy2, cpx1, cpy1, cpx0, cpy0,
		laste, tx, ty;

	for ( var i = 0, l = this.actions.length; i < l; i ++ ) {

		var item = this.actions[ i ];

		var action = item.action;
		var args = item.args;

		switch ( action ) {

		case 'moveTo':

			points.push( new THREE.Vector2( args[ 0 ], args[ 1 ] ) );

			break;

		case 'lineTo':

			points.push( new THREE.Vector2( args[ 0 ], args[ 1 ] ) );

			break;

		case 'quadraticCurveTo':

			cpx  = args[ 2 ];
			cpy  = args[ 3 ];

			cpx1 = args[ 0 ];
			cpy1 = args[ 1 ];

			if ( points.length > 0 ) {

				laste = points[ points.length - 1 ];

				cpx0 = laste.x;
				cpy0 = laste.y;

			} else {

				laste = this.actions[ i - 1 ].args;

				cpx0 = laste[ laste.length - 2 ];
				cpy0 = laste[ laste.length - 1 ];

			}

			for ( var j = 1; j <= divisions; j ++ ) {

				var t = j / divisions;

				tx = b2( t, cpx0, cpx1, cpx );
				ty = b2( t, cpy0, cpy1, cpy );

				points.push( new THREE.Vector2( tx, ty ) );

			}

			break;

		case 'bezierCurveTo':

			cpx  = args[ 4 ];
			cpy  = args[ 5 ];

			cpx1 = args[ 0 ];
			cpy1 = args[ 1 ];

			cpx2 = args[ 2 ];
			cpy2 = args[ 3 ];

			if ( points.length > 0 ) {

				laste = points[ points.length - 1 ];

				cpx0 = laste.x;
				cpy0 = laste.y;

			} else {

				laste = this.actions[ i - 1 ].args;

				cpx0 = laste[ laste.length - 2 ];
				cpy0 = laste[ laste.length - 1 ];

			}


			for ( var j = 1; j <= divisions; j ++ ) {

				var t = j / divisions;

				tx = b3( t, cpx0, cpx1, cpx2, cpx );
				ty = b3( t, cpy0, cpy1, cpy2, cpy );

				points.push( new THREE.Vector2( tx, ty ) );

			}

			break;

		case 'splineThru':

			laste = this.actions[ i - 1 ].args;

			var last = new THREE.Vector2( laste[ laste.length - 2 ], laste[ laste.length - 1 ] );
			var spts = [ last ];

			var n = divisions * args[ 0 ].length;

			spts = spts.concat( args[ 0 ] );

			var spline = new THREE.SplineCurve( spts );

			for ( var j = 1; j <= n; j ++ ) {

				points.push( spline.getPointAt( j / n ) );

			}

			break;

		case 'arc':

			var aX = args[ 0 ], aY = args[ 1 ],
				aRadius = args[ 2 ],
				aStartAngle = args[ 3 ], aEndAngle = args[ 4 ],
				aClockwise = !! args[ 5 ];

			var deltaAngle = aEndAngle - aStartAngle;
			var angle;
			var tdivisions = divisions * 2;

			for ( var j = 1; j <= tdivisions; j ++ ) {

				var t = j / tdivisions;

				if ( ! aClockwise ) {

					t = 1 - t;

				}

				angle = aStartAngle + t * deltaAngle;

				tx = aX + aRadius * Math.cos( angle );
				ty = aY + aRadius * Math.sin( angle );

				//console.log('t', t, 'angle', angle, 'tx', tx, 'ty', ty);

				points.push( new THREE.Vector2( tx, ty ) );

			}

			//console.log(points);

			break;

		case 'ellipse':

			var aX = args[ 0 ], aY = args[ 1 ],
				xRadius = args[ 2 ],
				yRadius = args[ 3 ],
				aStartAngle = args[ 4 ], aEndAngle = args[ 5 ],
				aClockwise = !! args[ 6 ],
				aRotation = args[ 7 ];


			var deltaAngle = aEndAngle - aStartAngle;
			var angle;
			var tdivisions = divisions * 2;

			var cos, sin;
			if ( aRotation !== 0 ) {

				cos = Math.cos( aRotation );
				sin = Math.sin( aRotation );

			}

			for ( var j = 1; j <= tdivisions; j ++ ) {

				var t = j / tdivisions;

				if ( ! aClockwise ) {

					t = 1 - t;

				}

				angle = aStartAngle + t * deltaAngle;

				tx = aX + xRadius * Math.cos( angle );
				ty = aY + yRadius * Math.sin( angle );

				if ( aRotation !== 0 ) {

					var x = tx, y = ty;

					// Rotate the point about the center of the ellipse.
					tx = ( x - aX ) * cos - ( y - aY ) * sin + aX;
					ty = ( x - aX ) * sin + ( y - aY ) * cos + aY;

				}

				//console.log('t', t, 'angle', angle, 'tx', tx, 'ty', ty);

				points.push( new THREE.Vector2( tx, ty ) );

			}

			//console.log(points);

			break;

		} // end switch

	}



	// Normalize to remove the closing point by default.
	var lastPoint = points[ points.length - 1 ];
	if ( Math.abs( lastPoint.x - points[ 0 ].x ) < Number.EPSILON &&
			 Math.abs( lastPoint.y - points[ 0 ].y ) < Number.EPSILON )
		points.splice( points.length - 1, 1 );

	if ( this.autoClose ) {

		points.push( points[ 0 ] );

	}

	return points;

};

//
// Breaks path into shapes
//
//	Assumptions (if parameter isCCW==true the opposite holds):
//	- solid shapes are defined clockwise (CW)
//	- holes are defined counterclockwise (CCW)
//
//	If parameter noHoles==true:
//  - all subPaths are regarded as solid shapes
//  - definition order CW/CCW has no relevance
//

THREE.Path.prototype.toShapes = function( isCCW, noHoles ) {

	function extractSubpaths( inActions ) {

		var subPaths = [], lastPath = new THREE.Path();

		for ( var i = 0, l = inActions.length; i < l; i ++ ) {

			var item = inActions[ i ];

			var args = item.args;
			var action = item.action;

			if ( action === 'moveTo' ) {

				if ( lastPath.actions.length !== 0 ) {

					subPaths.push( lastPath );
					lastPath = new THREE.Path();

				}

			}

			lastPath[ action ].apply( lastPath, args );

		}

		if ( lastPath.actions.length !== 0 ) {

			subPaths.push( lastPath );

		}

		// console.log(subPaths);

		return	subPaths;

	}

	function toShapesNoHoles( inSubpaths ) {

		var shapes = [];

		for ( var i = 0, l = inSubpaths.length; i < l; i ++ ) {

			var tmpPath = inSubpaths[ i ];

			var tmpShape = new THREE.Shape();
			tmpShape.actions = tmpPath.actions;
			tmpShape.curves = tmpPath.curves;

			shapes.push( tmpShape );

		}

		//console.log("shape", shapes);

		return shapes;

	}

	function isPointInsidePolygon( inPt, inPolygon ) {

		var polyLen = inPolygon.length;

		// inPt on polygon contour => immediate success    or
		// toggling of inside/outside at every single! intersection point of an edge
		//  with the horizontal line through inPt, left of inPt
		//  not counting lowerY endpoints of edges and whole edges on that line
		var inside = false;
		for ( var p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) {

			var edgeLowPt  = inPolygon[ p ];
			var edgeHighPt = inPolygon[ q ];

			var edgeDx = edgeHighPt.x - edgeLowPt.x;
			var edgeDy = edgeHighPt.y - edgeLowPt.y;

			if ( Math.abs( edgeDy ) > Number.EPSILON ) {

				// not parallel
				if ( edgeDy < 0 ) {

					edgeLowPt  = inPolygon[ q ]; edgeDx = - edgeDx;
					edgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy;

				}
				if ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) 		continue;

				if ( inPt.y === edgeLowPt.y ) {

					if ( inPt.x === edgeLowPt.x )		return	true;		// inPt is on contour ?
					// continue;				// no intersection or edgeLowPt => doesn't count !!!

				} else {

					var perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y );
					if ( perpEdge === 0 )				return	true;		// inPt is on contour ?
					if ( perpEdge < 0 ) 				continue;
					inside = ! inside;		// true intersection left of inPt

				}

			} else {

				// parallel or collinear
				if ( inPt.y !== edgeLowPt.y ) 		continue;			// parallel
				// edge lies on the same horizontal line as inPt
				if ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) ||
					 ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) )		return	true;	// inPt: Point on contour !
				// continue;

			}

		}

		return	inside;

	}

	var isClockWise = THREE.ShapeUtils.isClockWise;

	var subPaths = extractSubpaths( this.actions );
	if ( subPaths.length === 0 ) return [];

	if ( noHoles === true )	return	toShapesNoHoles( subPaths );


	var solid, tmpPath, tmpShape, shapes = [];

	if ( subPaths.length === 1 ) {

		tmpPath = subPaths[ 0 ];
		tmpShape = new THREE.Shape();
		tmpShape.actions = tmpPath.actions;
		tmpShape.curves = tmpPath.curves;
		shapes.push( tmpShape );
		return shapes;

	}

	var holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() );
	holesFirst = isCCW ? ! holesFirst : holesFirst;

	// console.log("Holes first", holesFirst);

	var betterShapeHoles = [];
	var newShapes = [];
	var newShapeHoles = [];
	var mainIdx = 0;
	var tmpPoints;

	newShapes[ mainIdx ] = undefined;
	newShapeHoles[ mainIdx ] = [];

	for ( var i = 0, l = subPaths.length; i < l; i ++ ) {

		tmpPath = subPaths[ i ];
		tmpPoints = tmpPath.getPoints();
		solid = isClockWise( tmpPoints );
		solid = isCCW ? ! solid : solid;

		if ( solid ) {

			if ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) )	mainIdx ++;

			newShapes[ mainIdx ] = { s: new THREE.Shape(), p: tmpPoints };
			newShapes[ mainIdx ].s.actions = tmpPath.actions;
			newShapes[ mainIdx ].s.curves = tmpPath.curves;

			if ( holesFirst )	mainIdx ++;
			newShapeHoles[ mainIdx ] = [];

			//console.log('cw', i);

		} else {

			newShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } );

			//console.log('ccw', i);

		}

	}

	// only Holes? -> probably all Shapes with wrong orientation
	if ( ! newShapes[ 0 ] )	return	toShapesNoHoles( subPaths );


	if ( newShapes.length > 1 ) {

		var ambiguous = false;
		var toChange = [];

		for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {

			betterShapeHoles[ sIdx ] = [];

		}

		for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {

			var sho = newShapeHoles[ sIdx ];

			for ( var hIdx = 0; hIdx < sho.length; hIdx ++ ) {

				var ho = sho[ hIdx ];
				var hole_unassigned = true;

				for ( var s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) {

					if ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) {

						if ( sIdx !== s2Idx )	toChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } );
						if ( hole_unassigned ) {

							hole_unassigned = false;
							betterShapeHoles[ s2Idx ].push( ho );

						} else {

							ambiguous = true;

						}

					}

				}
				if ( hole_unassigned ) {

					betterShapeHoles[ sIdx ].push( ho );

				}

			}

		}
		// console.log("ambiguous: ", ambiguous);
		if ( toChange.length > 0 ) {

			// console.log("to change: ", toChange);
			if ( ! ambiguous )	newShapeHoles = betterShapeHoles;

		}

	}

	var tmpHoles;

	for ( var i = 0, il = newShapes.length; i < il; i ++ ) {

		tmpShape = newShapes[ i ].s;
		shapes.push( tmpShape );
		tmpHoles = newShapeHoles[ i ];

		for ( var j = 0, jl = tmpHoles.length; j < jl; j ++ ) {

			tmpShape.holes.push( tmpHoles[ j ].h );

		}

	}

	//console.log("shape", shapes);

	return shapes;

};

// File:src/extras/core/Shape.js

/**
 * @author zz85 / http://www.lab4games.net/zz85/blog
 * Defines a 2d shape plane using paths.
 **/

// STEP 1 Create a path.
// STEP 2 Turn path into shape.
// STEP 3 ExtrudeGeometry takes in Shape/Shapes
// STEP 3a - Extract points from each shape, turn to vertices
// STEP 3b - Triangulate each shape, add faces.

THREE.Shape = function () {

	THREE.Path.apply( this, arguments );

	this.holes = [];

};

THREE.Shape.prototype = Object.create( THREE.Path.prototype );
THREE.Shape.prototype.constructor = THREE.Shape;

// Convenience method to return ExtrudeGeometry

THREE.Shape.prototype.extrude = function ( options ) {

	return new THREE.ExtrudeGeometry( this, options );

};

// Convenience method to return ShapeGeometry

THREE.Shape.prototype.makeGeometry = function ( options ) {

	return new THREE.ShapeGeometry( this, options );

};

// Get points of holes

THREE.Shape.prototype.getPointsHoles = function ( divisions ) {

	var holesPts = [];

	for ( var i = 0, l = this.holes.length; i < l; i ++ ) {

		holesPts[ i ] = this.holes[ i ].getPoints( divisions );

	}

	return holesPts;

};


// Get points of shape and holes (keypoints based on segments parameter)

THREE.Shape.prototype.extractAllPoints = function ( divisions ) {

	return {

		shape: this.getPoints( divisions ),
		holes: this.getPointsHoles( divisions )

	};

};

THREE.Shape.prototype.extractPoints = function ( divisions ) {

	return this.extractAllPoints( divisions );

};

THREE.Shape.Utils = THREE.ShapeUtils; // backwards compatibility

// File:src/extras/curves/LineCurve.js

/**************************************************************
 *	Line
 **************************************************************/

THREE.LineCurve = function ( v1, v2 ) {

	this.v1 = v1;
	this.v2 = v2;

};

THREE.LineCurve.prototype = Object.create( THREE.Curve.prototype );
THREE.LineCurve.prototype.constructor = THREE.LineCurve;

THREE.LineCurve.prototype.getPoint = function ( t ) {

	var point = this.v2.clone().sub( this.v1 );
	point.multiplyScalar( t ).add( this.v1 );

	return point;

};

// Line curve is linear, so we can overwrite default getPointAt

THREE.LineCurve.prototype.getPointAt = function ( u ) {

	return this.getPoint( u );

};

THREE.LineCurve.prototype.getTangent = function( t ) {

	var tangent = this.v2.clone().sub( this.v1 );

	return tangent.normalize();

};

// File:src/extras/curves/QuadraticBezierCurve.js

/**************************************************************
 *	Quadratic Bezier curve
 **************************************************************/


THREE.QuadraticBezierCurve = function ( v0, v1, v2 ) {

	this.v0 = v0;
	this.v1 = v1;
	this.v2 = v2;

};

THREE.QuadraticBezierCurve.prototype = Object.create( THREE.Curve.prototype );
THREE.QuadraticBezierCurve.prototype.constructor = THREE.QuadraticBezierCurve;


THREE.QuadraticBezierCurve.prototype.getPoint = function ( t ) {

	var b2 = THREE.ShapeUtils.b2;

	return new THREE.Vector2(
		b2( t, this.v0.x, this.v1.x, this.v2.x ),
		b2( t, this.v0.y, this.v1.y, this.v2.y )
	);

};


THREE.QuadraticBezierCurve.prototype.getTangent = function( t ) {

	var tangentQuadraticBezier = THREE.CurveUtils.tangentQuadraticBezier;

	return new THREE.Vector2(
		tangentQuadraticBezier( t, this.v0.x, this.v1.x, this.v2.x ),
		tangentQuadraticBezier( t, this.v0.y, this.v1.y, this.v2.y )
	).normalize();

};

// File:src/extras/curves/CubicBezierCurve.js

/**************************************************************
 *	Cubic Bezier curve
 **************************************************************/

THREE.CubicBezierCurve = function ( v0, v1, v2, v3 ) {

	this.v0 = v0;
	this.v1 = v1;
	this.v2 = v2;
	this.v3 = v3;

};

THREE.CubicBezierCurve.prototype = Object.create( THREE.Curve.prototype );
THREE.CubicBezierCurve.prototype.constructor = THREE.CubicBezierCurve;

THREE.CubicBezierCurve.prototype.getPoint = function ( t ) {

	var b3 = THREE.ShapeUtils.b3;

	return new THREE.Vector2( 
		b3( t, this.v0.x, this.v1.x, this.v2.x, this.v3.x ),
		b3( t, this.v0.y, this.v1.y, this.v2.y, this.v3.y )
	);

};

THREE.CubicBezierCurve.prototype.getTangent = function( t ) {

	var tangentCubicBezier = THREE.CurveUtils.tangentCubicBezier;

	return new THREE.Vector2( 
		tangentCubicBezier( t, this.v0.x, this.v1.x, this.v2.x, this.v3.x ),
		tangentCubicBezier( t, this.v0.y, this.v1.y, this.v2.y, this.v3.y )
	).normalize();

};

// File:src/extras/curves/SplineCurve.js

/**************************************************************
 *	Spline curve
 **************************************************************/

THREE.SplineCurve = function ( points /* array of Vector2 */ ) {

	this.points = ( points == undefined ) ? [] : points;

};

THREE.SplineCurve.prototype = Object.create( THREE.Curve.prototype );
THREE.SplineCurve.prototype.constructor = THREE.SplineCurve;

THREE.SplineCurve.prototype.getPoint = function ( t ) {

	var points = this.points;
	var point = ( points.length - 1 ) * t;

	var intPoint = Math.floor( point );
	var weight = point - intPoint;

	var point0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ];
	var point1 = points[ intPoint ];
	var point2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];
	var point3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];

	var interpolate = THREE.CurveUtils.interpolate;

	return new THREE.Vector2(
		interpolate( point0.x, point1.x, point2.x, point3.x, weight ),
		interpolate( point0.y, point1.y, point2.y, point3.y, weight )
	);

};

// File:src/extras/curves/EllipseCurve.js

/**************************************************************
 *	Ellipse curve
 **************************************************************/

THREE.EllipseCurve = function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

	this.aX = aX;
	this.aY = aY;

	this.xRadius = xRadius;
	this.yRadius = yRadius;

	this.aStartAngle = aStartAngle;
	this.aEndAngle = aEndAngle;

	this.aClockwise = aClockwise;
	
	this.aRotation = aRotation || 0;

};

THREE.EllipseCurve.prototype = Object.create( THREE.Curve.prototype );
THREE.EllipseCurve.prototype.constructor = THREE.EllipseCurve;

THREE.EllipseCurve.prototype.getPoint = function ( t ) {

	var deltaAngle = this.aEndAngle - this.aStartAngle;

	if ( deltaAngle < 0 ) deltaAngle += Math.PI * 2;
	if ( deltaAngle > Math.PI * 2 ) deltaAngle -= Math.PI * 2;

	var angle;

	if ( this.aClockwise === true ) {

		angle = this.aEndAngle + ( 1 - t ) * ( Math.PI * 2 - deltaAngle );

	} else {

		angle = this.aStartAngle + t * deltaAngle;

	}
	
	var x = this.aX + this.xRadius * Math.cos( angle );
	var y = this.aY + this.yRadius * Math.sin( angle );

	if ( this.aRotation !== 0 ) {

		var cos = Math.cos( this.aRotation );
		var sin = Math.sin( this.aRotation );

		var tx = x, ty = y;

		// Rotate the point about the center of the ellipse.
		x = ( tx - this.aX ) * cos - ( ty - this.aY ) * sin + this.aX;
		y = ( tx - this.aX ) * sin + ( ty - this.aY ) * cos + this.aY;

	}

	return new THREE.Vector2( x, y );

};

// File:src/extras/curves/ArcCurve.js

/**************************************************************
 *	Arc curve
 **************************************************************/

THREE.ArcCurve = function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

	THREE.EllipseCurve.call( this, aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );

};

THREE.ArcCurve.prototype = Object.create( THREE.EllipseCurve.prototype );
THREE.ArcCurve.prototype.constructor = THREE.ArcCurve;

// File:src/extras/curves/LineCurve3.js

/**************************************************************
 *	Line3D
 **************************************************************/

THREE.LineCurve3 = THREE.Curve.create(

	function ( v1, v2 ) {

		this.v1 = v1;
		this.v2 = v2;

	},

	function ( t ) {

		var vector = new THREE.Vector3();

		vector.subVectors( this.v2, this.v1 ); // diff
		vector.multiplyScalar( t );
		vector.add( this.v1 );

		return vector;

	}

);

// File:src/extras/curves/QuadraticBezierCurve3.js

/**************************************************************
 *	Quadratic Bezier 3D curve
 **************************************************************/

THREE.QuadraticBezierCurve3 = THREE.Curve.create(

	function ( v0, v1, v2 ) {

		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;

	},

	function ( t ) {

		var b2 = THREE.ShapeUtils.b2;		

		return new THREE.Vector3(
			b2( t, this.v0.x, this.v1.x, this.v2.x ),
			b2( t, this.v0.y, this.v1.y, this.v2.y ),
			b2( t, this.v0.z, this.v1.z, this.v2.z )
		);

	}

);

// File:src/extras/curves/CubicBezierCurve3.js

/**************************************************************
 *	Cubic Bezier 3D curve
 **************************************************************/

THREE.CubicBezierCurve3 = THREE.Curve.create(

	function ( v0, v1, v2, v3 ) {

		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;
		this.v3 = v3;

	},

	function ( t ) {

		var b3 = THREE.ShapeUtils.b3;

		return new THREE.Vector3(
			b3( t, this.v0.x, this.v1.x, this.v2.x, this.v3.x ),
			b3( t, this.v0.y, this.v1.y, this.v2.y, this.v3.y ),
			b3( t, this.v0.z, this.v1.z, this.v2.z, this.v3.z )
		);

	}

);

// File:src/extras/curves/SplineCurve3.js

/**************************************************************
 *	Spline 3D curve
 **************************************************************/


THREE.SplineCurve3 = THREE.Curve.create(

	function ( points /* array of Vector3 */ ) {

		console.warn( 'THREE.SplineCurve3 will be deprecated. Please use THREE.CatmullRomCurve3' );
		this.points = ( points == undefined ) ? [] : points;

	},

	function ( t ) {

		var points = this.points;
		var point = ( points.length - 1 ) * t;

		var intPoint = Math.floor( point );
		var weight = point - intPoint;

		var point0 = points[ intPoint == 0 ? intPoint : intPoint - 1 ];
		var point1 = points[ intPoint ];
		var point2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];
		var point3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];

		var interpolate = THREE.CurveUtils.interpolate;

		return new THREE.Vector3(
			interpolate( point0.x, point1.x, point2.x, point3.x, weight ),
			interpolate( point0.y, point1.y, point2.y, point3.y, weight ),
			interpolate( point0.z, point1.z, point2.z, point3.z, weight )
		);

	}

);

// File:src/extras/curves/CatmullRomCurve3.js

/**
 * @author zz85 https://github.com/zz85
 *
 * Centripetal CatmullRom Curve - which is useful for avoiding
 * cusps and self-intersections in non-uniform catmull rom curves.
 * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
 *
 * curve.type accepts centripetal(default), chordal and catmullrom
 * curve.tension is used for catmullrom which defaults to 0.5
 */

THREE.CatmullRomCurve3 = ( function() {

	var
		tmp = new THREE.Vector3(),
		px = new CubicPoly(),
		py = new CubicPoly(),
		pz = new CubicPoly();

	/*
	Based on an optimized c++ solution in
	 - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
	 - http://ideone.com/NoEbVM

	This CubicPoly class could be used for reusing some variables and calculations,
	but for three.js curve use, it could be possible inlined and flatten into a single function call
	which can be placed in CurveUtils.
	*/

	function CubicPoly() {

	}

	/*
	 * Compute coefficients for a cubic polynomial
	 *   p(s) = c0 + c1*s + c2*s^2 + c3*s^3
	 * such that
	 *   p(0) = x0, p(1) = x1
	 *  and
	 *   p'(0) = t0, p'(1) = t1.
	 */
	CubicPoly.prototype.init = function( x0, x1, t0, t1 ) {

		this.c0 = x0;
		this.c1 = t0;
		this.c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1;
		this.c3 = 2 * x0 - 2 * x1 + t0 + t1;

	};

	CubicPoly.prototype.initNonuniformCatmullRom = function( x0, x1, x2, x3, dt0, dt1, dt2 ) {

		// compute tangents when parameterized in [t1,t2]
		var t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1;
		var t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2;

		// rescale tangents for parametrization in [0,1]
		t1 *= dt1;
		t2 *= dt1;

		// initCubicPoly
		this.init( x1, x2, t1, t2 );

	};

	// standard Catmull-Rom spline: interpolate between x1 and x2 with previous/following points x1/x4
	CubicPoly.prototype.initCatmullRom = function( x0, x1, x2, x3, tension ) {

		this.init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) );

	};

	CubicPoly.prototype.calc = function( t ) {

		var t2 = t * t;
		var t3 = t2 * t;
		return this.c0 + this.c1 * t + this.c2 * t2 + this.c3 * t3;

	};

	// Subclass Three.js curve
	return THREE.Curve.create(

		function ( p /* array of Vector3 */ ) {

			this.points = p || [];
			this.closed = false;

		},

		function ( t ) {

			var points = this.points,
				point, intPoint, weight, l;

			l = points.length;

			if ( l < 2 ) console.log( 'duh, you need at least 2 points' );

			point = ( l - ( this.closed ? 0 : 1 ) ) * t;
			intPoint = Math.floor( point );
			weight = point - intPoint;

			if ( this.closed ) {

				intPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / points.length ) + 1 ) * points.length;

			} else if ( weight === 0 && intPoint === l - 1 ) {

				intPoint = l - 2;
				weight = 1;

			}

			var p0, p1, p2, p3; // 4 points

			if ( this.closed || intPoint > 0 ) {

				p0 = points[ ( intPoint - 1 ) % l ];

			} else {

				// extrapolate first point
				tmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] );
				p0 = tmp;

			}

			p1 = points[ intPoint % l ];
			p2 = points[ ( intPoint + 1 ) % l ];

			if ( this.closed || intPoint + 2 < l ) {

				p3 = points[ ( intPoint + 2 ) % l ];

			} else {

				// extrapolate last point
				tmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 2 ] );
				p3 = tmp;

			}

			if ( this.type === undefined || this.type === 'centripetal' || this.type === 'chordal' ) {

				// init Centripetal / Chordal Catmull-Rom
				var pow = this.type === 'chordal' ? 0.5 : 0.25;
				var dt0 = Math.pow( p0.distanceToSquared( p1 ), pow );
				var dt1 = Math.pow( p1.distanceToSquared( p2 ), pow );
				var dt2 = Math.pow( p2.distanceToSquared( p3 ), pow );

				// safety check for repeated points
				if ( dt1 < 1e-4 ) dt1 = 1.0;
				if ( dt0 < 1e-4 ) dt0 = dt1;
				if ( dt2 < 1e-4 ) dt2 = dt1;

				px.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 );
				py.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 );
				pz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 );

			} else if ( this.type === 'catmullrom' ) {

				var tension = this.tension !== undefined ? this.tension : 0.5;
				px.initCatmullRom( p0.x, p1.x, p2.x, p3.x, tension );
				py.initCatmullRom( p0.y, p1.y, p2.y, p3.y, tension );
				pz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, tension );

			}

			var v = new THREE.Vector3(
				px.calc( weight ),
				py.calc( weight ),
				pz.calc( weight )
			);

			return v;

		}

	);

} )();

// File:src/extras/curves/ClosedSplineCurve3.js

/**************************************************************
 *	Closed Spline 3D curve
 **************************************************************/


THREE.ClosedSplineCurve3 = function ( points ) {

	console.warn( 'THREE.ClosedSplineCurve3 has been deprecated. Please use THREE.CatmullRomCurve3.' );

	THREE.CatmullRomCurve3.call( this, points );
	this.type = 'catmullrom';
	this.closed = true;

};

THREE.ClosedSplineCurve3.prototype = Object.create( THREE.CatmullRomCurve3.prototype );

// File:src/extras/geometries/BoxGeometry.js

/**
 * @author mrdoob / http://mrdoob.com/
 * based on http://papervision3d.googlecode.com/svn/trunk/as3/trunk/src/org/papervision3d/objects/primitives/Cube.as
 */

THREE.BoxGeometry = function ( width, height, depth, widthSegments, heightSegments, depthSegments ) {

	THREE.Geometry.call( this );

	this.type = 'BoxGeometry';

	this.parameters = {
		width: width,
		height: height,
		depth: depth,
		widthSegments: widthSegments,
		heightSegments: heightSegments,
		depthSegments: depthSegments
	};

	this.widthSegments = widthSegments || 1;
	this.heightSegments = heightSegments || 1;
	this.depthSegments = depthSegments || 1;

	var scope = this;

	var width_half = width / 2;
	var height_half = height / 2;
	var depth_half = depth / 2;

	buildPlane( 'z', 'y', - 1, - 1, depth, height, width_half, 0 ); // px
	buildPlane( 'z', 'y',   1, - 1, depth, height, - width_half, 1 ); // nx
	buildPlane( 'x', 'z',   1,   1, width, depth, height_half, 2 ); // py
	buildPlane( 'x', 'z',   1, - 1, width, depth, - height_half, 3 ); // ny
	buildPlane( 'x', 'y',   1, - 1, width, height, depth_half, 4 ); // pz
	buildPlane( 'x', 'y', - 1, - 1, width, height, - depth_half, 5 ); // nz

	function buildPlane( u, v, udir, vdir, width, height, depth, materialIndex ) {

		var w, ix, iy,
		gridX = scope.widthSegments,
		gridY = scope.heightSegments,
		width_half = width / 2,
		height_half = height / 2,
		offset = scope.vertices.length;

		if ( ( u === 'x' && v === 'y' ) || ( u === 'y' && v === 'x' ) ) {

			w = 'z';

		} else if ( ( u === 'x' && v === 'z' ) || ( u === 'z' && v === 'x' ) ) {

			w = 'y';
			gridY = scope.depthSegments;

		} else if ( ( u === 'z' && v === 'y' ) || ( u === 'y' && v === 'z' ) ) {

			w = 'x';
			gridX = scope.depthSegments;

		}

		var gridX1 = gridX + 1,
		gridY1 = gridY + 1,
		segment_width = width / gridX,
		segment_height = height / gridY,
		normal = new THREE.Vector3();

		normal[ w ] = depth > 0 ? 1 : - 1;

		for ( iy = 0; iy < gridY1; iy ++ ) {

			for ( ix = 0; ix < gridX1; ix ++ ) {

				var vector = new THREE.Vector3();
				vector[ u ] = ( ix * segment_width - width_half ) * udir;
				vector[ v ] = ( iy * segment_height - height_half ) * vdir;
				vector[ w ] = depth;

				scope.vertices.push( vector );

			}

		}

		for ( iy = 0; iy < gridY; iy ++ ) {

			for ( ix = 0; ix < gridX; ix ++ ) {

				var a = ix + gridX1 * iy;
				var b = ix + gridX1 * ( iy + 1 );
				var c = ( ix + 1 ) + gridX1 * ( iy + 1 );
				var d = ( ix + 1 ) + gridX1 * iy;

				var uva = new THREE.Vector2( ix / gridX, 1 - iy / gridY );
				var uvb = new THREE.Vector2( ix / gridX, 1 - ( iy + 1 ) / gridY );
				var uvc = new THREE.Vector2( ( ix + 1 ) / gridX, 1 - ( iy + 1 ) / gridY );
				var uvd = new THREE.Vector2( ( ix + 1 ) / gridX, 1 - iy / gridY );

				var face = new THREE.Face3( a + offset, b + offset, d + offset );
				face.normal.copy( normal );
				face.vertexNormals.push( normal.clone(), normal.clone(), normal.clone() );
				face.materialIndex = materialIndex;

				scope.faces.push( face );
				scope.faceVertexUvs[ 0 ].push( [ uva, uvb, uvd ] );

				face = new THREE.Face3( b + offset, c + offset, d + offset );
				face.normal.copy( normal );
				face.vertexNormals.push( normal.clone(), normal.clone(), normal.clone() );
				face.materialIndex = materialIndex;

				scope.faces.push( face );
				scope.faceVertexUvs[ 0 ].push( [ uvb.clone(), uvc, uvd.clone() ] );

			}

		}

	}

	this.mergeVertices();

};

THREE.BoxGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.BoxGeometry.prototype.constructor = THREE.BoxGeometry;

THREE.CubeGeometry = THREE.BoxGeometry; // backwards compatibility

// File:src/extras/geometries/CircleGeometry.js

/**
 * @author hughes
 */

THREE.CircleGeometry = function ( radius, segments, thetaStart, thetaLength ) {

	THREE.Geometry.call( this );

	this.type = 'CircleGeometry';

	this.parameters = {
		radius: radius,
		segments: segments,
		thetaStart: thetaStart,
		thetaLength: thetaLength
	};

	this.fromBufferGeometry( new THREE.CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) );

};

THREE.CircleGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.CircleGeometry.prototype.constructor = THREE.CircleGeometry;

// File:src/extras/geometries/CircleBufferGeometry.js

/**
 * @author benaadams / https://twitter.com/ben_a_adams
 */

THREE.CircleBufferGeometry = function ( radius, segments, thetaStart, thetaLength ) {

	THREE.BufferGeometry.call( this );

	this.type = 'CircleBufferGeometry';

	this.parameters = {
		radius: radius,
		segments: segments,
		thetaStart: thetaStart,
		thetaLength: thetaLength
	};

	radius = radius || 50;
	segments = segments !== undefined ? Math.max( 3, segments ) : 8;

	thetaStart = thetaStart !== undefined ? thetaStart : 0;
	thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;

	var vertices = segments + 2;

	var positions = new Float32Array( vertices * 3 );
	var normals = new Float32Array( vertices * 3 );
	var uvs = new Float32Array( vertices * 2 );

	// center data is already zero, but need to set a few extras
	normals[ 2 ] = 1.0;
	uvs[ 0 ] = 0.5;
	uvs[ 1 ] = 0.5;

	for ( var s = 0, i = 3, ii = 2 ; s <= segments; s ++, i += 3, ii += 2 ) {

		var segment = thetaStart + s / segments * thetaLength;

		positions[ i ] = radius * Math.cos( segment );
		positions[ i + 1 ] = radius * Math.sin( segment );

		normals[ i + 2 ] = 1; // normal z

		uvs[ ii ] = ( positions[ i ] / radius + 1 ) / 2;
		uvs[ ii + 1 ] = ( positions[ i + 1 ] / radius + 1 ) / 2;

	}

	var indices = [];

	for ( var i = 1; i <= segments; i ++ ) {

		indices.push( i, i + 1, 0 );

	}

	this.setIndex( new THREE.BufferAttribute( new Uint16Array( indices ), 1 ) );
	this.addAttribute( 'position', new THREE.BufferAttribute( positions, 3 ) );
	this.addAttribute( 'normal', new THREE.BufferAttribute( normals, 3 ) );
	this.addAttribute( 'uv', new THREE.BufferAttribute( uvs, 2 ) );

	this.boundingSphere = new THREE.Sphere( new THREE.Vector3(), radius );

};

THREE.CircleBufferGeometry.prototype = Object.create( THREE.BufferGeometry.prototype );
THREE.CircleBufferGeometry.prototype.constructor = THREE.CircleBufferGeometry;

// File:src/extras/geometries/CylinderGeometry.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.CylinderGeometry = function ( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {

	THREE.Geometry.call( this );

	this.type = 'CylinderGeometry';

	this.parameters = {
		radiusTop: radiusTop,
		radiusBottom: radiusBottom,
		height: height,
		radialSegments: radialSegments,
		heightSegments: heightSegments,
		openEnded: openEnded,
		thetaStart: thetaStart,
		thetaLength: thetaLength
	};

	radiusTop = radiusTop !== undefined ? radiusTop : 20;
	radiusBottom = radiusBottom !== undefined ? radiusBottom : 20;
	height = height !== undefined ? height : 100;

	radialSegments = radialSegments || 8;
	heightSegments = heightSegments || 1;

	openEnded = openEnded !== undefined ? openEnded : false;
	thetaStart = thetaStart !== undefined ? thetaStart : 0;
	thetaLength = thetaLength !== undefined ? thetaLength : 2 * Math.PI;

	var heightHalf = height / 2;

	var x, y, vertices = [], uvs = [];

	for ( y = 0; y <= heightSegments; y ++ ) {

		var verticesRow = [];
		var uvsRow = [];

		var v = y / heightSegments;
		var radius = v * ( radiusBottom - radiusTop ) + radiusTop;

		for ( x = 0; x <= radialSegments; x ++ ) {

			var u = x / radialSegments;

			var vertex = new THREE.Vector3();
			vertex.x = radius * Math.sin( u * thetaLength + thetaStart );
			vertex.y = - v * height + heightHalf;
			vertex.z = radius * Math.cos( u * thetaLength + thetaStart );

			this.vertices.push( vertex );

			verticesRow.push( this.vertices.length - 1 );
			uvsRow.push( new THREE.Vector2( u, 1 - v ) );

		}

		vertices.push( verticesRow );
		uvs.push( uvsRow );

	}

	var tanTheta = ( radiusBottom - radiusTop ) / height;
	var na, nb;

	for ( x = 0; x < radialSegments; x ++ ) {

		if ( radiusTop !== 0 ) {

			na = this.vertices[ vertices[ 0 ][ x ] ].clone();
			nb = this.vertices[ vertices[ 0 ][ x + 1 ] ].clone();

		} else {

			na = this.vertices[ vertices[ 1 ][ x ] ].clone();
			nb = this.vertices[ vertices[ 1 ][ x + 1 ] ].clone();

		}

		na.setY( Math.sqrt( na.x * na.x + na.z * na.z ) * tanTheta ).normalize();
		nb.setY( Math.sqrt( nb.x * nb.x + nb.z * nb.z ) * tanTheta ).normalize();

		for ( y = 0; y < heightSegments; y ++ ) {

			var v1 = vertices[ y ][ x ];
			var v2 = vertices[ y + 1 ][ x ];
			var v3 = vertices[ y + 1 ][ x + 1 ];
			var v4 = vertices[ y ][ x + 1 ];

			var n1 = na.clone();
			var n2 = na.clone();
			var n3 = nb.clone();
			var n4 = nb.clone();

			var uv1 = uvs[ y ][ x ].clone();
			var uv2 = uvs[ y + 1 ][ x ].clone();
			var uv3 = uvs[ y + 1 ][ x + 1 ].clone();
			var uv4 = uvs[ y ][ x + 1 ].clone();

			this.faces.push( new THREE.Face3( v1, v2, v4, [ n1, n2, n4 ] ) );
			this.faceVertexUvs[ 0 ].push( [ uv1, uv2, uv4 ] );

			this.faces.push( new THREE.Face3( v2, v3, v4, [ n2.clone(), n3, n4.clone() ] ) );
			this.faceVertexUvs[ 0 ].push( [ uv2.clone(), uv3, uv4.clone() ] );

		}

	}

	// top cap

	if ( openEnded === false && radiusTop > 0 ) {

		this.vertices.push( new THREE.Vector3( 0, heightHalf, 0 ) );

		for ( x = 0; x < radialSegments; x ++ ) {

			var v1 = vertices[ 0 ][ x ];
			var v2 = vertices[ 0 ][ x + 1 ];
			var v3 = this.vertices.length - 1;

			var n1 = new THREE.Vector3( 0, 1, 0 );
			var n2 = new THREE.Vector3( 0, 1, 0 );
			var n3 = new THREE.Vector3( 0, 1, 0 );

			var uv1 = uvs[ 0 ][ x ].clone();
			var uv2 = uvs[ 0 ][ x + 1 ].clone();
			var uv3 = new THREE.Vector2( uv2.x, 0 );

			this.faces.push( new THREE.Face3( v1, v2, v3, [ n1, n2, n3 ], undefined, 1 ) );
			this.faceVertexUvs[ 0 ].push( [ uv1, uv2, uv3 ] );

		}

	}

	// bottom cap

	if ( openEnded === false && radiusBottom > 0 ) {

		this.vertices.push( new THREE.Vector3( 0, - heightHalf, 0 ) );

		for ( x = 0; x < radialSegments; x ++ ) {

			var v1 = vertices[ heightSegments ][ x + 1 ];
			var v2 = vertices[ heightSegments ][ x ];
			var v3 = this.vertices.length - 1;

			var n1 = new THREE.Vector3( 0, - 1, 0 );
			var n2 = new THREE.Vector3( 0, - 1, 0 );
			var n3 = new THREE.Vector3( 0, - 1, 0 );

			var uv1 = uvs[ heightSegments ][ x + 1 ].clone();
			var uv2 = uvs[ heightSegments ][ x ].clone();
			var uv3 = new THREE.Vector2( uv2.x, 1 );

			this.faces.push( new THREE.Face3( v1, v2, v3, [ n1, n2, n3 ], undefined, 2 ) );
			this.faceVertexUvs[ 0 ].push( [ uv1, uv2, uv3 ] );

		}

	}

	this.computeFaceNormals();

};

THREE.CylinderGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.CylinderGeometry.prototype.constructor = THREE.CylinderGeometry;

// File:src/extras/geometries/EdgesGeometry.js

/**
 * @author WestLangley / http://github.com/WestLangley
 */

THREE.EdgesGeometry = function ( geometry, thresholdAngle ) {

	THREE.BufferGeometry.call( this );

	thresholdAngle = ( thresholdAngle !== undefined ) ? thresholdAngle : 1;

	var thresholdDot = Math.cos( THREE.Math.degToRad( thresholdAngle ) );

	var edge = [ 0, 0 ], hash = {};

	function sortFunction( a, b ) {

		return a - b;

	}

	var keys = [ 'a', 'b', 'c' ];

	var geometry2;

	if ( geometry instanceof THREE.BufferGeometry ) {

		geometry2 = new THREE.Geometry();
		geometry2.fromBufferGeometry( geometry );

	} else {

		geometry2 = geometry.clone();

	}

	geometry2.mergeVertices();
	geometry2.computeFaceNormals();

	var vertices = geometry2.vertices;
	var faces = geometry2.faces;

	for ( var i = 0, l = faces.length; i < l; i ++ ) {

		var face = faces[ i ];

		for ( var j = 0; j < 3; j ++ ) {

			edge[ 0 ] = face[ keys[ j ] ];
			edge[ 1 ] = face[ keys[ ( j + 1 ) % 3 ] ];
			edge.sort( sortFunction );

			var key = edge.toString();

			if ( hash[ key ] === undefined ) {

				hash[ key ] = { vert1: edge[ 0 ], vert2: edge[ 1 ], face1: i, face2: undefined };

			} else {

				hash[ key ].face2 = i;

			}

		}

	}

	var coords = [];

	for ( var key in hash ) {

		var h = hash[ key ];

		if ( h.face2 === undefined || faces[ h.face1 ].normal.dot( faces[ h.face2 ].normal ) <= thresholdDot ) {

			var vertex = vertices[ h.vert1 ];
			coords.push( vertex.x );
			coords.push( vertex.y );
			coords.push( vertex.z );

			vertex = vertices[ h.vert2 ];
			coords.push( vertex.x );
			coords.push( vertex.y );
			coords.push( vertex.z );

		}

	}

	this.addAttribute( 'position', new THREE.BufferAttribute( new Float32Array( coords ), 3 ) );

};

THREE.EdgesGeometry.prototype = Object.create( THREE.BufferGeometry.prototype );
THREE.EdgesGeometry.prototype.constructor = THREE.EdgesGeometry;

// File:src/extras/geometries/ExtrudeGeometry.js

/**
 * @author zz85 / http://www.lab4games.net/zz85/blog
 *
 * Creates extruded geometry from a path shape.
 *
 * parameters = {
 *
 *  curveSegments: <int>, // number of points on the curves
 *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
 *  amount: <int>, // Depth to extrude the shape
 *
 *  bevelEnabled: <bool>, // turn on bevel
 *  bevelThickness: <float>, // how deep into the original shape bevel goes
 *  bevelSize: <float>, // how far from shape outline is bevel
 *  bevelSegments: <int>, // number of bevel layers
 *
 *  extrudePath: <THREE.CurvePath> // 3d spline path to extrude shape along. (creates Frames if .frames aren't defined)
 *  frames: <THREE.TubeGeometry.FrenetFrames> // containing arrays of tangents, normals, binormals
 *
 *  uvGenerator: <Object> // object that provides UV generator functions
 *
 * }
 **/

THREE.ExtrudeGeometry = function ( shapes, options ) {

	if ( typeof( shapes ) === "undefined" ) {

		shapes = [];
		return;

	}

	THREE.Geometry.call( this );

	this.type = 'ExtrudeGeometry';

	shapes = Array.isArray( shapes ) ? shapes : [ shapes ];

	this.addShapeList( shapes, options );

	this.computeFaceNormals();

	// can't really use automatic vertex normals
	// as then front and back sides get smoothed too
	// should do separate smoothing just for sides

	//this.computeVertexNormals();

	//console.log( "took", ( Date.now() - startTime ) );

};

THREE.ExtrudeGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.ExtrudeGeometry.prototype.constructor = THREE.ExtrudeGeometry;

THREE.ExtrudeGeometry.prototype.addShapeList = function ( shapes, options ) {

	var sl = shapes.length;

	for ( var s = 0; s < sl; s ++ ) {

		var shape = shapes[ s ];
		this.addShape( shape, options );

	}

};

THREE.ExtrudeGeometry.prototype.addShape = function ( shape, options ) {

	var amount = options.amount !== undefined ? options.amount : 100;

	var bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6; // 10
	var bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2; // 8
	var bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;

	var bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true; // false

	var curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;

	var steps = options.steps !== undefined ? options.steps : 1;

	var extrudePath = options.extrudePath;
	var extrudePts, extrudeByPath = false;

	// Use default WorldUVGenerator if no UV generators are specified.
	var uvgen = options.UVGenerator !== undefined ? options.UVGenerator : THREE.ExtrudeGeometry.WorldUVGenerator;

	var splineTube, binormal, normal, position2;
	if ( extrudePath ) {

		extrudePts = extrudePath.getSpacedPoints( steps );

		extrudeByPath = true;
		bevelEnabled = false; // bevels not supported for path extrusion

		// SETUP TNB variables

		// Reuse TNB from TubeGeomtry for now.
		// TODO1 - have a .isClosed in spline?

		splineTube = options.frames !== undefined ? options.frames : new THREE.TubeGeometry.FrenetFrames( extrudePath, steps, false );

		// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);

		binormal = new THREE.Vector3();
		normal = new THREE.Vector3();
		position2 = new THREE.Vector3();

	}

	// Safeguards if bevels are not enabled

	if ( ! bevelEnabled ) {

		bevelSegments = 0;
		bevelThickness = 0;
		bevelSize = 0;

	}

	// Variables initialization

	var ahole, h, hl; // looping of holes
	var scope = this;

	var shapesOffset = this.vertices.length;

	var shapePoints = shape.extractPoints( curveSegments );

	var vertices = shapePoints.shape;
	var holes = shapePoints.holes;

	var reverse = ! THREE.ShapeUtils.isClockWise( vertices );

	if ( reverse ) {

		vertices = vertices.reverse();

		// Maybe we should also check if holes are in the opposite direction, just to be safe ...

		for ( h = 0, hl = holes.length; h < hl; h ++ ) {

			ahole = holes[ h ];

			if ( THREE.ShapeUtils.isClockWise( ahole ) ) {

				holes[ h ] = ahole.reverse();

			}

		}

		reverse = false; // If vertices are in order now, we shouldn't need to worry about them again (hopefully)!

	}


	var faces = THREE.ShapeUtils.triangulateShape( vertices, holes );

	/* Vertices */

	var contour = vertices; // vertices has all points but contour has only points of circumference

	for ( h = 0, hl = holes.length; h < hl; h ++ ) {

		ahole = holes[ h ];

		vertices = vertices.concat( ahole );

	}


	function scalePt2 ( pt, vec, size ) {

		if ( ! vec ) console.error( "THREE.ExtrudeGeometry: vec does not exist" );

		return vec.clone().multiplyScalar( size ).add( pt );

	}

	var b, bs, t, z,
		vert, vlen = vertices.length,
		face, flen = faces.length;


	// Find directions for point movement


	function getBevelVec( inPt, inPrev, inNext ) {

		// computes for inPt the corresponding point inPt' on a new contour
		//   shifted by 1 unit (length of normalized vector) to the left
		// if we walk along contour clockwise, this new contour is outside the old one
		//
		// inPt' is the intersection of the two lines parallel to the two
		//  adjacent edges of inPt at a distance of 1 unit on the left side.

		var v_trans_x, v_trans_y, shrink_by = 1;		// resulting translation vector for inPt

		// good reading for geometry algorithms (here: line-line intersection)
		// http://geomalgorithms.com/a05-_intersect-1.html

		var v_prev_x = inPt.x - inPrev.x, v_prev_y = inPt.y - inPrev.y;
		var v_next_x = inNext.x - inPt.x, v_next_y = inNext.y - inPt.y;

		var v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y );

		// check for collinear edges
		var collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x );

		if ( Math.abs( collinear0 ) > Number.EPSILON ) {

			// not collinear

			// length of vectors for normalizing

			var v_prev_len = Math.sqrt( v_prev_lensq );
			var v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y );

			// shift adjacent points by unit vectors to the left

			var ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len );
			var ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len );

			var ptNextShift_x = ( inNext.x - v_next_y / v_next_len );
			var ptNextShift_y = ( inNext.y + v_next_x / v_next_len );

			// scaling factor for v_prev to intersection point

			var sf = (  ( ptNextShift_x - ptPrevShift_x ) * v_next_y -
						( ptNextShift_y - ptPrevShift_y ) * v_next_x    ) /
					  ( v_prev_x * v_next_y - v_prev_y * v_next_x );

			// vector from inPt to intersection point

			v_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x );
			v_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y );

			// Don't normalize!, otherwise sharp corners become ugly
			//  but prevent crazy spikes
			var v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y );
			if ( v_trans_lensq <= 2 ) {

				return	new THREE.Vector2( v_trans_x, v_trans_y );

			} else {

				shrink_by = Math.sqrt( v_trans_lensq / 2 );

			}

		} else {

			// handle special case of collinear edges

			var direction_eq = false;		// assumes: opposite
			if ( v_prev_x > Number.EPSILON ) {

				if ( v_next_x > Number.EPSILON ) {

					direction_eq = true;

				}

			} else {

				if ( v_prev_x < - Number.EPSILON ) {

					if ( v_next_x < - Number.EPSILON ) {

						direction_eq = true;

					}

				} else {

					if ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) {

						direction_eq = true;

					}

				}

			}

			if ( direction_eq ) {

				// console.log("Warning: lines are a straight sequence");
				v_trans_x = - v_prev_y;
				v_trans_y =  v_prev_x;
				shrink_by = Math.sqrt( v_prev_lensq );

			} else {

				// console.log("Warning: lines are a straight spike");
				v_trans_x = v_prev_x;
				v_trans_y = v_prev_y;
				shrink_by = Math.sqrt( v_prev_lensq / 2 );

			}

		}

		return	new THREE.Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by );

	}


	var contourMovements = [];

	for ( var i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {

		if ( j === il ) j = 0;
		if ( k === il ) k = 0;

		//  (j)---(i)---(k)
		// console.log('i,j,k', i, j , k)

		contourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] );

	}

	var holesMovements = [], oneHoleMovements, verticesMovements = contourMovements.concat();

	for ( h = 0, hl = holes.length; h < hl; h ++ ) {

		ahole = holes[ h ];

		oneHoleMovements = [];

		for ( i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {

			if ( j === il ) j = 0;
			if ( k === il ) k = 0;

			//  (j)---(i)---(k)
			oneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] );

		}

		holesMovements.push( oneHoleMovements );
		verticesMovements = verticesMovements.concat( oneHoleMovements );

	}


	// Loop bevelSegments, 1 for the front, 1 for the back

	for ( b = 0; b < bevelSegments; b ++ ) {

		//for ( b = bevelSegments; b > 0; b -- ) {

		t = b / bevelSegments;
		z = bevelThickness * ( 1 - t );

		//z = bevelThickness * t;
		bs = bevelSize * ( Math.sin ( t * Math.PI / 2 ) ); // curved
		//bs = bevelSize * t; // linear

		// contract shape

		for ( i = 0, il = contour.length; i < il; i ++ ) {

			vert = scalePt2( contour[ i ], contourMovements[ i ], bs );

			v( vert.x, vert.y,  - z );

		}

		// expand holes

		for ( h = 0, hl = holes.length; h < hl; h ++ ) {

			ahole = holes[ h ];
			oneHoleMovements = holesMovements[ h ];

			for ( i = 0, il = ahole.length; i < il; i ++ ) {

				vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );

				v( vert.x, vert.y,  - z );

			}

		}

	}

	bs = bevelSize;

	// Back facing vertices

	for ( i = 0; i < vlen; i ++ ) {

		vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];

		if ( ! extrudeByPath ) {

			v( vert.x, vert.y, 0 );

		} else {

			// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );

			normal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x );
			binormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y );

			position2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal );

			v( position2.x, position2.y, position2.z );

		}

	}

	// Add stepped vertices...
	// Including front facing vertices

	var s;

	for ( s = 1; s <= steps; s ++ ) {

		for ( i = 0; i < vlen; i ++ ) {

			vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];

			if ( ! extrudeByPath ) {

				v( vert.x, vert.y, amount / steps * s );

			} else {

				// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );

				normal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x );
				binormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y );

				position2.copy( extrudePts[ s ] ).add( normal ).add( binormal );

				v( position2.x, position2.y, position2.z );

			}

		}

	}


	// Add bevel segments planes

	//for ( b = 1; b <= bevelSegments; b ++ ) {
	for ( b = bevelSegments - 1; b >= 0; b -- ) {

		t = b / bevelSegments;
		z = bevelThickness * ( 1 - t );
		//bs = bevelSize * ( 1-Math.sin ( ( 1 - t ) * Math.PI/2 ) );
		bs = bevelSize * Math.sin ( t * Math.PI / 2 );

		// contract shape

		for ( i = 0, il = contour.length; i < il; i ++ ) {

			vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
			v( vert.x, vert.y,  amount + z );

		}

		// expand holes

		for ( h = 0, hl = holes.length; h < hl; h ++ ) {

			ahole = holes[ h ];
			oneHoleMovements = holesMovements[ h ];

			for ( i = 0, il = ahole.length; i < il; i ++ ) {

				vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );

				if ( ! extrudeByPath ) {

					v( vert.x, vert.y,  amount + z );

				} else {

					v( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z );

				}

			}

		}

	}

	/* Faces */

	// Top and bottom faces

	buildLidFaces();

	// Sides faces

	buildSideFaces();


	/////  Internal functions

	function buildLidFaces() {

		if ( bevelEnabled ) {

			var layer = 0; // steps + 1
			var offset = vlen * layer;

			// Bottom faces

			for ( i = 0; i < flen; i ++ ) {

				face = faces[ i ];
				f3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset );

			}

			layer = steps + bevelSegments * 2;
			offset = vlen * layer;

			// Top faces

			for ( i = 0; i < flen; i ++ ) {

				face = faces[ i ];
				f3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset );

			}

		} else {

			// Bottom faces

			for ( i = 0; i < flen; i ++ ) {

				face = faces[ i ];
				f3( face[ 2 ], face[ 1 ], face[ 0 ] );

			}

			// Top faces

			for ( i = 0; i < flen; i ++ ) {

				face = faces[ i ];
				f3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps );

			}

		}

	}

	// Create faces for the z-sides of the shape

	function buildSideFaces() {

		var layeroffset = 0;
		sidewalls( contour, layeroffset );
		layeroffset += contour.length;

		for ( h = 0, hl = holes.length; h < hl; h ++ ) {

			ahole = holes[ h ];
			sidewalls( ahole, layeroffset );

			//, true
			layeroffset += ahole.length;

		}

	}

	function sidewalls( contour, layeroffset ) {

		var j, k;
		i = contour.length;

		while ( -- i >= 0 ) {

			j = i;
			k = i - 1;
			if ( k < 0 ) k = contour.length - 1;

			//console.log('b', i,j, i-1, k,vertices.length);

			var s = 0, sl = steps  + bevelSegments * 2;

			for ( s = 0; s < sl; s ++ ) {

				var slen1 = vlen * s;
				var slen2 = vlen * ( s + 1 );

				var a = layeroffset + j + slen1,
					b = layeroffset + k + slen1,
					c = layeroffset + k + slen2,
					d = layeroffset + j + slen2;

				f4( a, b, c, d, contour, s, sl, j, k );

			}

		}

	}


	function v( x, y, z ) {

		scope.vertices.push( new THREE.Vector3( x, y, z ) );

	}

	function f3( a, b, c ) {

		a += shapesOffset;
		b += shapesOffset;
		c += shapesOffset;

		scope.faces.push( new THREE.Face3( a, b, c, null, null, 0 ) );

		var uvs = uvgen.generateTopUV( scope, a, b, c );

		scope.faceVertexUvs[ 0 ].push( uvs );

	}

	function f4( a, b, c, d, wallContour, stepIndex, stepsLength, contourIndex1, contourIndex2 ) {

		a += shapesOffset;
		b += shapesOffset;
		c += shapesOffset;
		d += shapesOffset;

		scope.faces.push( new THREE.Face3( a, b, d, null, null, 1 ) );
		scope.faces.push( new THREE.Face3( b, c, d, null, null, 1 ) );

		var uvs = uvgen.generateSideWallUV( scope, a, b, c, d );

		scope.faceVertexUvs[ 0 ].push( [ uvs[ 0 ], uvs[ 1 ], uvs[ 3 ] ] );
		scope.faceVertexUvs[ 0 ].push( [ uvs[ 1 ], uvs[ 2 ], uvs[ 3 ] ] );

	}

};

THREE.ExtrudeGeometry.WorldUVGenerator = {

	generateTopUV: function ( geometry, indexA, indexB, indexC ) {

		var vertices = geometry.vertices;

		var a = vertices[ indexA ];
		var b = vertices[ indexB ];
		var c = vertices[ indexC ];

		return [
			new THREE.Vector2( a.x, a.y ),
			new THREE.Vector2( b.x, b.y ),
			new THREE.Vector2( c.x, c.y )
		];

	},

	generateSideWallUV: function ( geometry, indexA, indexB, indexC, indexD ) {

		var vertices = geometry.vertices;

		var a = vertices[ indexA ];
		var b = vertices[ indexB ];
		var c = vertices[ indexC ];
		var d = vertices[ indexD ];

		if ( Math.abs( a.y - b.y ) < 0.01 ) {

			return [
				new THREE.Vector2( a.x, 1 - a.z ),
				new THREE.Vector2( b.x, 1 - b.z ),
				new THREE.Vector2( c.x, 1 - c.z ),
				new THREE.Vector2( d.x, 1 - d.z )
			];

		} else {

			return [
				new THREE.Vector2( a.y, 1 - a.z ),
				new THREE.Vector2( b.y, 1 - b.z ),
				new THREE.Vector2( c.y, 1 - c.z ),
				new THREE.Vector2( d.y, 1 - d.z )
			];

		}

	}
};

// File:src/extras/geometries/ShapeGeometry.js

/**
 * @author jonobr1 / http://jonobr1.com
 *
 * Creates a one-sided polygonal geometry from a path shape. Similar to
 * ExtrudeGeometry.
 *
 * parameters = {
 *
 *	curveSegments: <int>, // number of points on the curves. NOT USED AT THE MOMENT.
 *
 *	material: <int> // material index for front and back faces
 *	uvGenerator: <Object> // object that provides UV generator functions
 *
 * }
 **/

THREE.ShapeGeometry = function ( shapes, options ) {

	THREE.Geometry.call( this );

	this.type = 'ShapeGeometry';

	if ( Array.isArray( shapes ) === false ) shapes = [ shapes ];

	this.addShapeList( shapes, options );

	this.computeFaceNormals();

};

THREE.ShapeGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.ShapeGeometry.prototype.constructor = THREE.ShapeGeometry;

/**
 * Add an array of shapes to THREE.ShapeGeometry.
 */
THREE.ShapeGeometry.prototype.addShapeList = function ( shapes, options ) {

	for ( var i = 0, l = shapes.length; i < l; i ++ ) {

		this.addShape( shapes[ i ], options );

	}

	return this;

};

/**
 * Adds a shape to THREE.ShapeGeometry, based on THREE.ExtrudeGeometry.
 */
THREE.ShapeGeometry.prototype.addShape = function ( shape, options ) {

	if ( options === undefined ) options = {};
	var curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;

	var material = options.material;
	var uvgen = options.UVGenerator === undefined ? THREE.ExtrudeGeometry.WorldUVGenerator : options.UVGenerator;

	//

	var i, l, hole;

	var shapesOffset = this.vertices.length;
	var shapePoints = shape.extractPoints( curveSegments );

	var vertices = shapePoints.shape;
	var holes = shapePoints.holes;

	var reverse = ! THREE.ShapeUtils.isClockWise( vertices );

	if ( reverse ) {

		vertices = vertices.reverse();

		// Maybe we should also check if holes are in the opposite direction, just to be safe...

		for ( i = 0, l = holes.length; i < l; i ++ ) {

			hole = holes[ i ];

			if ( THREE.ShapeUtils.isClockWise( hole ) ) {

				holes[ i ] = hole.reverse();

			}

		}

		reverse = false;

	}

	var faces = THREE.ShapeUtils.triangulateShape( vertices, holes );

	// Vertices

	for ( i = 0, l = holes.length; i < l; i ++ ) {

		hole = holes[ i ];
		vertices = vertices.concat( hole );

	}

	//

	var vert, vlen = vertices.length;
	var face, flen = faces.length;

	for ( i = 0; i < vlen; i ++ ) {

		vert = vertices[ i ];

		this.vertices.push( new THREE.Vector3( vert.x, vert.y, 0 ) );

	}

	for ( i = 0; i < flen; i ++ ) {

		face = faces[ i ];

		var a = face[ 0 ] + shapesOffset;
		var b = face[ 1 ] + shapesOffset;
		var c = face[ 2 ] + shapesOffset;

		this.faces.push( new THREE.Face3( a, b, c, null, null, material ) );
		this.faceVertexUvs[ 0 ].push( uvgen.generateTopUV( this, a, b, c ) );

	}

};

// File:src/extras/geometries/LatheGeometry.js

/**
 * @author astrodud / http://astrodud.isgreat.org/
 * @author zz85 / https://github.com/zz85
 * @author bhouston / http://clara.io
 */

// points - to create a closed torus, one must use a set of points 
//    like so: [ a, b, c, d, a ], see first is the same as last.
// segments - the number of circumference segments to create
// phiStart - the starting radian
// phiLength - the radian (0 to 2*PI) range of the lathed section
//    2*pi is a closed lathe, less than 2PI is a portion.

THREE.LatheGeometry = function ( points, segments, phiStart, phiLength ) {

	THREE.Geometry.call( this );

	this.type = 'LatheGeometry';

	this.parameters = {
		points: points,
		segments: segments,
		phiStart: phiStart,
		phiLength: phiLength
	};

	segments = segments || 12;
	phiStart = phiStart || 0;
	phiLength = phiLength || 2 * Math.PI;

	var inversePointLength = 1.0 / ( points.length - 1 );
	var inverseSegments = 1.0 / segments;

	for ( var i = 0, il = segments; i <= il; i ++ ) {

		var phi = phiStart + i * inverseSegments * phiLength;

		var c = Math.cos( phi ),
			s = Math.sin( phi );

		for ( var j = 0, jl = points.length; j < jl; j ++ ) {

			var pt = points[ j ];

			var vertex = new THREE.Vector3();

			vertex.x = c * pt.x - s * pt.y;
			vertex.y = s * pt.x + c * pt.y;
			vertex.z = pt.z;

			this.vertices.push( vertex );

		}

	}

	var np = points.length;

	for ( var i = 0, il = segments; i < il; i ++ ) {

		for ( var j = 0, jl = points.length - 1; j < jl; j ++ ) {

			var base = j + np * i;
			var a = base;
			var b = base + np;
			var c = base + 1 + np;
			var d = base + 1;

			var u0 = i * inverseSegments;
			var v0 = j * inversePointLength;
			var u1 = u0 + inverseSegments;
			var v1 = v0 + inversePointLength;

			this.faces.push( new THREE.Face3( a, b, d ) );

			this.faceVertexUvs[ 0 ].push( [

				new THREE.Vector2( u0, v0 ),
				new THREE.Vector2( u1, v0 ),
				new THREE.Vector2( u0, v1 )

			] );

			this.faces.push( new THREE.Face3( b, c, d ) );

			this.faceVertexUvs[ 0 ].push( [

				new THREE.Vector2( u1, v0 ),
				new THREE.Vector2( u1, v1 ),
				new THREE.Vector2( u0, v1 )

			] );


		}

	}

	this.mergeVertices();
	this.computeFaceNormals();
	this.computeVertexNormals();

};

THREE.LatheGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.LatheGeometry.prototype.constructor = THREE.LatheGeometry;

// File:src/extras/geometries/PlaneGeometry.js

/**
 * @author mrdoob / http://mrdoob.com/
 * based on http://papervision3d.googlecode.com/svn/trunk/as3/trunk/src/org/papervision3d/objects/primitives/Plane.as
 */

THREE.PlaneGeometry = function ( width, height, widthSegments, heightSegments ) {

	THREE.Geometry.call( this );

	this.type = 'PlaneGeometry';

	this.parameters = {
		width: width,
		height: height,
		widthSegments: widthSegments,
		heightSegments: heightSegments
	};

	this.fromBufferGeometry( new THREE.PlaneBufferGeometry( width, height, widthSegments, heightSegments ) );

};

THREE.PlaneGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.PlaneGeometry.prototype.constructor = THREE.PlaneGeometry;

// File:src/extras/geometries/PlaneBufferGeometry.js

/**
 * @author mrdoob / http://mrdoob.com/
 * based on http://papervision3d.googlecode.com/svn/trunk/as3/trunk/src/org/papervision3d/objects/primitives/Plane.as
 */

THREE.PlaneBufferGeometry = function ( width, height, widthSegments, heightSegments ) {

	THREE.BufferGeometry.call( this );

	this.type = 'PlaneBufferGeometry';

	this.parameters = {
		width: width,
		height: height,
		widthSegments: widthSegments,
		heightSegments: heightSegments
	};

	var width_half = width / 2;
	var height_half = height / 2;

	var gridX = Math.floor( widthSegments ) || 1;
	var gridY = Math.floor( heightSegments ) || 1;

	var gridX1 = gridX + 1;
	var gridY1 = gridY + 1;

	var segment_width = width / gridX;
	var segment_height = height / gridY;

	var vertices = new Float32Array( gridX1 * gridY1 * 3 );
	var normals = new Float32Array( gridX1 * gridY1 * 3 );
	var uvs = new Float32Array( gridX1 * gridY1 * 2 );

	var offset = 0;
	var offset2 = 0;

	for ( var iy = 0; iy < gridY1; iy ++ ) {

		var y = iy * segment_height - height_half;

		for ( var ix = 0; ix < gridX1; ix ++ ) {

			var x = ix * segment_width - width_half;

			vertices[ offset ] = x;
			vertices[ offset + 1 ] = - y;

			normals[ offset + 2 ] = 1;

			uvs[ offset2 ] = ix / gridX;
			uvs[ offset2 + 1 ] = 1 - ( iy / gridY );

			offset += 3;
			offset2 += 2;

		}

	}

	offset = 0;

	var indices = new ( ( vertices.length / 3 ) > 65535 ? Uint32Array : Uint16Array )( gridX * gridY * 6 );

	for ( var iy = 0; iy < gridY; iy ++ ) {

		for ( var ix = 0; ix < gridX; ix ++ ) {

			var a = ix + gridX1 * iy;
			var b = ix + gridX1 * ( iy + 1 );
			var c = ( ix + 1 ) + gridX1 * ( iy + 1 );
			var d = ( ix + 1 ) + gridX1 * iy;

			indices[ offset ] = a;
			indices[ offset + 1 ] = b;
			indices[ offset + 2 ] = d;

			indices[ offset + 3 ] = b;
			indices[ offset + 4 ] = c;
			indices[ offset + 5 ] = d;

			offset += 6;

		}

	}

	this.setIndex( new THREE.BufferAttribute( indices, 1 ) );
	this.addAttribute( 'position', new THREE.BufferAttribute( vertices, 3 ) );
	this.addAttribute( 'normal', new THREE.BufferAttribute( normals, 3 ) );
	this.addAttribute( 'uv', new THREE.BufferAttribute( uvs, 2 ) );

};

THREE.PlaneBufferGeometry.prototype = Object.create( THREE.BufferGeometry.prototype );
THREE.PlaneBufferGeometry.prototype.constructor = THREE.PlaneBufferGeometry;

// File:src/extras/geometries/RingGeometry.js

/**
 * @author Kaleb Murphy
 */

THREE.RingGeometry = function ( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {

	THREE.Geometry.call( this );

	this.type = 'RingGeometry';

	this.parameters = {
		innerRadius: innerRadius,
		outerRadius: outerRadius,
		thetaSegments: thetaSegments,
		phiSegments: phiSegments,
		thetaStart: thetaStart,
		thetaLength: thetaLength
	};

	innerRadius = innerRadius || 0;
	outerRadius = outerRadius || 50;

	thetaStart = thetaStart !== undefined ? thetaStart : 0;
	thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;

	thetaSegments = thetaSegments !== undefined ? Math.max( 3, thetaSegments ) : 8;
	phiSegments = phiSegments !== undefined ? Math.max( 1, phiSegments ) : 8;

	var i, o, uvs = [], radius = innerRadius, radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );

	for ( i = 0; i < phiSegments + 1; i ++ ) {

		// concentric circles inside ring

		for ( o = 0; o < thetaSegments + 1; o ++ ) {

			// number of segments per circle

			var vertex = new THREE.Vector3();
			var segment = thetaStart + o / thetaSegments * thetaLength;
			vertex.x = radius * Math.cos( segment );
			vertex.y = radius * Math.sin( segment );

			this.vertices.push( vertex );
			uvs.push( new THREE.Vector2( ( vertex.x / outerRadius + 1 ) / 2, ( vertex.y / outerRadius + 1 ) / 2 ) );

		}

		radius += radiusStep;

	}

	var n = new THREE.Vector3( 0, 0, 1 );

	for ( i = 0; i < phiSegments; i ++ ) {

		// concentric circles inside ring

		var thetaSegment = i * ( thetaSegments + 1 );

		for ( o = 0; o < thetaSegments ; o ++ ) {

			// number of segments per circle

			var segment = o + thetaSegment;

			var v1 = segment;
			var v2 = segment + thetaSegments + 1;
			var v3 = segment + thetaSegments + 2;

			this.faces.push( new THREE.Face3( v1, v2, v3, [ n.clone(), n.clone(), n.clone() ] ) );
			this.faceVertexUvs[ 0 ].push( [ uvs[ v1 ].clone(), uvs[ v2 ].clone(), uvs[ v3 ].clone() ] );

			v1 = segment;
			v2 = segment + thetaSegments + 2;
			v3 = segment + 1;

			this.faces.push( new THREE.Face3( v1, v2, v3, [ n.clone(), n.clone(), n.clone() ] ) );
			this.faceVertexUvs[ 0 ].push( [ uvs[ v1 ].clone(), uvs[ v2 ].clone(), uvs[ v3 ].clone() ] );

		}

	}

	this.computeFaceNormals();

	this.boundingSphere = new THREE.Sphere( new THREE.Vector3(), radius );

};

THREE.RingGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.RingGeometry.prototype.constructor = THREE.RingGeometry;

// File:src/extras/geometries/SphereGeometry.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.SphereGeometry = function ( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {

	THREE.Geometry.call( this );

	this.type = 'SphereGeometry';

	this.parameters = {
		radius: radius,
		widthSegments: widthSegments,
		heightSegments: heightSegments,
		phiStart: phiStart,
		phiLength: phiLength,
		thetaStart: thetaStart,
		thetaLength: thetaLength
	};

	this.fromBufferGeometry( new THREE.SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) );

};

THREE.SphereGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.SphereGeometry.prototype.constructor = THREE.SphereGeometry;

// File:src/extras/geometries/SphereBufferGeometry.js

/**
 * @author benaadams / https://twitter.com/ben_a_adams
 * based on THREE.SphereGeometry
 */

THREE.SphereBufferGeometry = function ( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {

	THREE.BufferGeometry.call( this );

	this.type = 'SphereBufferGeometry';

	this.parameters = {
		radius: radius,
		widthSegments: widthSegments,
		heightSegments: heightSegments,
		phiStart: phiStart,
		phiLength: phiLength,
		thetaStart: thetaStart,
		thetaLength: thetaLength
	};

	radius = radius || 50;

	widthSegments = Math.max( 3, Math.floor( widthSegments ) || 8 );
	heightSegments = Math.max( 2, Math.floor( heightSegments ) || 6 );

	phiStart = phiStart !== undefined ? phiStart : 0;
	phiLength = phiLength !== undefined ? phiLength : Math.PI * 2;

	thetaStart = thetaStart !== undefined ? thetaStart : 0;
	thetaLength = thetaLength !== undefined ? thetaLength : Math.PI;

	var thetaEnd = thetaStart + thetaLength;

	var vertexCount = ( ( widthSegments + 1 ) * ( heightSegments + 1 ) );

	var positions = new THREE.BufferAttribute( new Float32Array( vertexCount * 3 ), 3 );
	var normals = new THREE.BufferAttribute( new Float32Array( vertexCount * 3 ), 3 );
	var uvs = new THREE.BufferAttribute( new Float32Array( vertexCount * 2 ), 2 );

	var index = 0, vertices = [], normal = new THREE.Vector3();

	for ( var y = 0; y <= heightSegments; y ++ ) {

		var verticesRow = [];

		var v = y / heightSegments;

		for ( var x = 0; x <= widthSegments; x ++ ) {

			var u = x / widthSegments;

			var px = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
			var py = radius * Math.cos( thetaStart + v * thetaLength );
			var pz = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );

			normal.set( px, py, pz ).normalize();

			positions.setXYZ( index, px, py, pz );
			normals.setXYZ( index, normal.x, normal.y, normal.z );
			uvs.setXY( index, u, 1 - v );

			verticesRow.push( index );

			index ++;

		}

		vertices.push( verticesRow );

	}

	var indices = [];

	for ( var y = 0; y < heightSegments; y ++ ) {

		for ( var x = 0; x < widthSegments; x ++ ) {

			var v1 = vertices[ y ][ x + 1 ];
			var v2 = vertices[ y ][ x ];
			var v3 = vertices[ y + 1 ][ x ];
			var v4 = vertices[ y + 1 ][ x + 1 ];

			if ( y !== 0 || thetaStart > 0 ) indices.push( v1, v2, v4 );
			if ( y !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( v2, v3, v4 );

		}

	}

	this.setIndex( new ( positions.count > 65535 ? THREE.Uint32Attribute : THREE.Uint16Attribute )( indices, 1 ) );
	this.addAttribute( 'position', positions );
	this.addAttribute( 'normal', normals );
	this.addAttribute( 'uv', uvs );

	this.boundingSphere = new THREE.Sphere( new THREE.Vector3(), radius );

};

THREE.SphereBufferGeometry.prototype = Object.create( THREE.BufferGeometry.prototype );
THREE.SphereBufferGeometry.prototype.constructor = THREE.SphereBufferGeometry;

// File:src/extras/geometries/TorusGeometry.js

/**
 * @author oosmoxiecode
 * @author mrdoob / http://mrdoob.com/
 * based on http://code.google.com/p/away3d/source/browse/trunk/fp10/Away3DLite/src/away3dlite/primitives/Torus.as?r=2888
 */

THREE.TorusGeometry = function ( radius, tube, radialSegments, tubularSegments, arc ) {

	THREE.Geometry.call( this );

	this.type = 'TorusGeometry';

	this.parameters = {
		radius: radius,
		tube: tube,
		radialSegments: radialSegments,
		tubularSegments: tubularSegments,
		arc: arc
	};

	radius = radius || 100;
	tube = tube || 40;
	radialSegments = radialSegments || 8;
	tubularSegments = tubularSegments || 6;
	arc = arc || Math.PI * 2;

	var center = new THREE.Vector3(), uvs = [], normals = [];

	for ( var j = 0; j <= radialSegments; j ++ ) {

		for ( var i = 0; i <= tubularSegments; i ++ ) {

			var u = i / tubularSegments * arc;
			var v = j / radialSegments * Math.PI * 2;

			center.x = radius * Math.cos( u );
			center.y = radius * Math.sin( u );

			var vertex = new THREE.Vector3();
			vertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u );
			vertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u );
			vertex.z = tube * Math.sin( v );

			this.vertices.push( vertex );

			uvs.push( new THREE.Vector2( i / tubularSegments, j / radialSegments ) );
			normals.push( vertex.clone().sub( center ).normalize() );

		}

	}

	for ( var j = 1; j <= radialSegments; j ++ ) {

		for ( var i = 1; i <= tubularSegments; i ++ ) {

			var a = ( tubularSegments + 1 ) * j + i - 1;
			var b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1;
			var c = ( tubularSegments + 1 ) * ( j - 1 ) + i;
			var d = ( tubularSegments + 1 ) * j + i;

			var face = new THREE.Face3( a, b, d, [ normals[ a ].clone(), normals[ b ].clone(), normals[ d ].clone() ] );
			this.faces.push( face );
			this.faceVertexUvs[ 0 ].push( [ uvs[ a ].clone(), uvs[ b ].clone(), uvs[ d ].clone() ] );

			face = new THREE.Face3( b, c, d, [ normals[ b ].clone(), normals[ c ].clone(), normals[ d ].clone() ] );
			this.faces.push( face );
			this.faceVertexUvs[ 0 ].push( [ uvs[ b ].clone(), uvs[ c ].clone(), uvs[ d ].clone() ] );

		}

	}

	this.computeFaceNormals();

};

THREE.TorusGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.TorusGeometry.prototype.constructor = THREE.TorusGeometry;

// File:src/extras/geometries/TorusKnotGeometry.js

/**
 * @author oosmoxiecode
 * based on http://code.google.com/p/away3d/source/browse/trunk/fp10/Away3D/src/away3d/primitives/TorusKnot.as?spec=svn2473&r=2473
 */

THREE.TorusKnotGeometry = function ( radius, tube, radialSegments, tubularSegments, p, q, heightScale ) {

	THREE.Geometry.call( this );

	this.type = 'TorusKnotGeometry';

	this.parameters = {
		radius: radius,
		tube: tube,
		radialSegments: radialSegments,
		tubularSegments: tubularSegments,
		p: p,
		q: q,
		heightScale: heightScale
	};

	radius = radius || 100;
	tube = tube || 40;
	radialSegments = radialSegments || 64;
	tubularSegments = tubularSegments || 8;
	p = p || 2;
	q = q || 3;
	heightScale = heightScale || 1;

	var grid = new Array( radialSegments );
	var tang = new THREE.Vector3();
	var n = new THREE.Vector3();
	var bitan = new THREE.Vector3();

	for ( var i = 0; i < radialSegments; ++ i ) {

		grid[ i ] = new Array( tubularSegments );
		var u = i / radialSegments * 2 * p * Math.PI;
		var p1 = getPos( u, q, p, radius, heightScale );
		var p2 = getPos( u + 0.01, q, p, radius, heightScale );
		tang.subVectors( p2, p1 );
		n.addVectors( p2, p1 );

		bitan.crossVectors( tang, n );
		n.crossVectors( bitan, tang );
		bitan.normalize();
		n.normalize();

		for ( var j = 0; j < tubularSegments; ++ j ) {

			var v = j / tubularSegments * 2 * Math.PI;
			var cx = - tube * Math.cos( v ); // TODO: Hack: Negating it so it faces outside.
			var cy = tube * Math.sin( v );

			var pos = new THREE.Vector3();
			pos.x = p1.x + cx * n.x + cy * bitan.x;
			pos.y = p1.y + cx * n.y + cy * bitan.y;
			pos.z = p1.z + cx * n.z + cy * bitan.z;

			grid[ i ][ j ] = this.vertices.push( pos ) - 1;

		}

	}

	for ( var i = 0; i < radialSegments; ++ i ) {

		for ( var j = 0; j < tubularSegments; ++ j ) {

			var ip = ( i + 1 ) % radialSegments;
			var jp = ( j + 1 ) % tubularSegments;

			var a = grid[ i ][ j ];
			var b = grid[ ip ][ j ];
			var c = grid[ ip ][ jp ];
			var d = grid[ i ][ jp ];

			var uva = new THREE.Vector2( i / radialSegments, j / tubularSegments );
			var uvb = new THREE.Vector2( ( i + 1 ) / radialSegments, j / tubularSegments );
			var uvc = new THREE.Vector2( ( i + 1 ) / radialSegments, ( j + 1 ) / tubularSegments );
			var uvd = new THREE.Vector2( i / radialSegments, ( j + 1 ) / tubularSegments );

			this.faces.push( new THREE.Face3( a, b, d ) );
			this.faceVertexUvs[ 0 ].push( [ uva, uvb, uvd ] );

			this.faces.push( new THREE.Face3( b, c, d ) );
			this.faceVertexUvs[ 0 ].push( [ uvb.clone(), uvc, uvd.clone() ] );

		}

	}

	this.computeFaceNormals();
	this.computeVertexNormals();

	function getPos( u, in_q, in_p, radius, heightScale ) {

		var cu = Math.cos( u );
		var su = Math.sin( u );
		var quOverP = in_q / in_p * u;
		var cs = Math.cos( quOverP );

		var tx = radius * ( 2 + cs ) * 0.5 * cu;
		var ty = radius * ( 2 + cs ) * su * 0.5;
		var tz = heightScale * radius * Math.sin( quOverP ) * 0.5;

		return new THREE.Vector3( tx, ty, tz );

	}

};

THREE.TorusKnotGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.TorusKnotGeometry.prototype.constructor = THREE.TorusKnotGeometry;

// File:src/extras/geometries/TubeGeometry.js

/**
 * @author WestLangley / https://github.com/WestLangley
 * @author zz85 / https://github.com/zz85
 * @author miningold / https://github.com/miningold
 * @author jonobr1 / https://github.com/jonobr1
 *
 * Modified from the TorusKnotGeometry by @oosmoxiecode
 *
 * Creates a tube which extrudes along a 3d spline
 *
 * Uses parallel transport frames as described in
 * http://www.cs.indiana.edu/pub/techreports/TR425.pdf
 */

THREE.TubeGeometry = function ( path, segments, radius, radialSegments, closed, taper ) {

	THREE.Geometry.call( this );

	this.type = 'TubeGeometry';

	this.parameters = {
		path: path,
		segments: segments,
		radius: radius,
		radialSegments: radialSegments,
		closed: closed,
		taper: taper
	};

	segments = segments || 64;
	radius = radius || 1;
	radialSegments = radialSegments || 8;
	closed = closed || false;
	taper = taper || THREE.TubeGeometry.NoTaper;

	var grid = [];

	var scope = this,

		tangent,
		normal,
		binormal,

		numpoints = segments + 1,

		u, v, r,

		cx, cy,
		pos, pos2 = new THREE.Vector3(),
		i, j,
		ip, jp,
		a, b, c, d,
		uva, uvb, uvc, uvd;

	var frames = new THREE.TubeGeometry.FrenetFrames( path, segments, closed ),
		tangents = frames.tangents,
		normals = frames.normals,
		binormals = frames.binormals;

	// proxy internals
	this.tangents = tangents;
	this.normals = normals;
	this.binormals = binormals;

	function vert( x, y, z ) {

		return scope.vertices.push( new THREE.Vector3( x, y, z ) ) - 1;

	}

	// construct the grid

	for ( i = 0; i < numpoints; i ++ ) {

		grid[ i ] = [];

		u = i / ( numpoints - 1 );

		pos = path.getPointAt( u );

		tangent = tangents[ i ];
		normal = normals[ i ];
		binormal = binormals[ i ];

		r = radius * taper( u );

		for ( j = 0; j < radialSegments; j ++ ) {

			v = j / radialSegments * 2 * Math.PI;

			cx = - r * Math.cos( v ); // TODO: Hack: Negating it so it faces outside.
			cy = r * Math.sin( v );

			pos2.copy( pos );
			pos2.x += cx * normal.x + cy * binormal.x;
			pos2.y += cx * normal.y + cy * binormal.y;
			pos2.z += cx * normal.z + cy * binormal.z;

			grid[ i ][ j ] = vert( pos2.x, pos2.y, pos2.z );

		}

	}


	// construct the mesh

	for ( i = 0; i < segments; i ++ ) {

		for ( j = 0; j < radialSegments; j ++ ) {

			ip = ( closed ) ? ( i + 1 ) % segments : i + 1;
			jp = ( j + 1 ) % radialSegments;

			a = grid[ i ][ j ];		// *** NOT NECESSARILY PLANAR ! ***
			b = grid[ ip ][ j ];
			c = grid[ ip ][ jp ];
			d = grid[ i ][ jp ];

			uva = new THREE.Vector2( i / segments, j / radialSegments );
			uvb = new THREE.Vector2( ( i + 1 ) / segments, j / radialSegments );
			uvc = new THREE.Vector2( ( i + 1 ) / segments, ( j + 1 ) / radialSegments );
			uvd = new THREE.Vector2( i / segments, ( j + 1 ) / radialSegments );

			this.faces.push( new THREE.Face3( a, b, d ) );
			this.faceVertexUvs[ 0 ].push( [ uva, uvb, uvd ] );

			this.faces.push( new THREE.Face3( b, c, d ) );
			this.faceVertexUvs[ 0 ].push( [ uvb.clone(), uvc, uvd.clone() ] );

		}

	}

	this.computeFaceNormals();
	this.computeVertexNormals();

};

THREE.TubeGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.TubeGeometry.prototype.constructor = THREE.TubeGeometry;

THREE.TubeGeometry.NoTaper = function ( u ) {

	return 1;

};

THREE.TubeGeometry.SinusoidalTaper = function ( u ) {

	return Math.sin( Math.PI * u );

};

// For computing of Frenet frames, exposing the tangents, normals and binormals the spline
THREE.TubeGeometry.FrenetFrames = function ( path, segments, closed ) {

	var	normal = new THREE.Vector3(),

		tangents = [],
		normals = [],
		binormals = [],

		vec = new THREE.Vector3(),
		mat = new THREE.Matrix4(),

		numpoints = segments + 1,
		theta,
		smallest,

		tx, ty, tz,
		i, u;


	// expose internals
	this.tangents = tangents;
	this.normals = normals;
	this.binormals = binormals;

	// compute the tangent vectors for each segment on the path

	for ( i = 0; i < numpoints; i ++ ) {

		u = i / ( numpoints - 1 );

		tangents[ i ] = path.getTangentAt( u );
		tangents[ i ].normalize();

	}

	initialNormal3();

	/*
	function initialNormal1(lastBinormal) {
		// fixed start binormal. Has dangers of 0 vectors
		normals[ 0 ] = new THREE.Vector3();
		binormals[ 0 ] = new THREE.Vector3();
		if (lastBinormal===undefined) lastBinormal = new THREE.Vector3( 0, 0, 1 );
		normals[ 0 ].crossVectors( lastBinormal, tangents[ 0 ] ).normalize();
		binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] ).normalize();
	}

	function initialNormal2() {

		// This uses the Frenet-Serret formula for deriving binormal
		var t2 = path.getTangentAt( epsilon );

		normals[ 0 ] = new THREE.Vector3().subVectors( t2, tangents[ 0 ] ).normalize();
		binormals[ 0 ] = new THREE.Vector3().crossVectors( tangents[ 0 ], normals[ 0 ] );

		normals[ 0 ].crossVectors( binormals[ 0 ], tangents[ 0 ] ).normalize(); // last binormal x tangent
		binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] ).normalize();

	}
	*/

	function initialNormal3() {

		// select an initial normal vector perpendicular to the first tangent vector,
		// and in the direction of the smallest tangent xyz component

		normals[ 0 ] = new THREE.Vector3();
		binormals[ 0 ] = new THREE.Vector3();
		smallest = Number.MAX_VALUE;
		tx = Math.abs( tangents[ 0 ].x );
		ty = Math.abs( tangents[ 0 ].y );
		tz = Math.abs( tangents[ 0 ].z );

		if ( tx <= smallest ) {

			smallest = tx;
			normal.set( 1, 0, 0 );

		}

		if ( ty <= smallest ) {

			smallest = ty;
			normal.set( 0, 1, 0 );

		}

		if ( tz <= smallest ) {

			normal.set( 0, 0, 1 );

		}

		vec.crossVectors( tangents[ 0 ], normal ).normalize();

		normals[ 0 ].crossVectors( tangents[ 0 ], vec );
		binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] );

	}


	// compute the slowly-varying normal and binormal vectors for each segment on the path

	for ( i = 1; i < numpoints; i ++ ) {

		normals[ i ] = normals[ i - 1 ].clone();

		binormals[ i ] = binormals[ i - 1 ].clone();

		vec.crossVectors( tangents[ i - 1 ], tangents[ i ] );

		if ( vec.length() > Number.EPSILON ) {

			vec.normalize();

			theta = Math.acos( THREE.Math.clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors

			normals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) );

		}

		binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );

	}


	// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same

	if ( closed ) {

		theta = Math.acos( THREE.Math.clamp( normals[ 0 ].dot( normals[ numpoints - 1 ] ), - 1, 1 ) );
		theta /= ( numpoints - 1 );

		if ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ numpoints - 1 ] ) ) > 0 ) {

			theta = - theta;

		}

		for ( i = 1; i < numpoints; i ++ ) {

			// twist a little...
			normals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) );
			binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );

		}

	}

};

// File:src/extras/geometries/PolyhedronGeometry.js

/**
 * @author clockworkgeek / https://github.com/clockworkgeek
 * @author timothypratley / https://github.com/timothypratley
 * @author WestLangley / http://github.com/WestLangley
*/

THREE.PolyhedronGeometry = function ( vertices, indices, radius, detail ) {

	THREE.Geometry.call( this );

	this.type = 'PolyhedronGeometry';

	this.parameters = {
		vertices: vertices,
		indices: indices,
		radius: radius,
		detail: detail
	};

	radius = radius || 1;
	detail = detail || 0;

	var that = this;

	for ( var i = 0, l = vertices.length; i < l; i += 3 ) {

		prepare( new THREE.Vector3( vertices[ i ], vertices[ i + 1 ], vertices[ i + 2 ] ) );

	}

	var p = this.vertices;

	var faces = [];

	for ( var i = 0, j = 0, l = indices.length; i < l; i += 3, j ++ ) {

		var v1 = p[ indices[ i ] ];
		var v2 = p[ indices[ i + 1 ] ];
		var v3 = p[ indices[ i + 2 ] ];

		faces[ j ] = new THREE.Face3( v1.index, v2.index, v3.index, [ v1.clone(), v2.clone(), v3.clone() ], undefined, j );

	}

	var centroid = new THREE.Vector3();

	for ( var i = 0, l = faces.length; i < l; i ++ ) {

		subdivide( faces[ i ], detail );

	}


	// Handle case when face straddles the seam

	for ( var i = 0, l = this.faceVertexUvs[ 0 ].length; i < l; i ++ ) {

		var uvs = this.faceVertexUvs[ 0 ][ i ];

		var x0 = uvs[ 0 ].x;
		var x1 = uvs[ 1 ].x;
		var x2 = uvs[ 2 ].x;

		var max = Math.max( x0, x1, x2 );
		var min = Math.min( x0, x1, x2 );

		if ( max > 0.9 && min < 0.1 ) {

			// 0.9 is somewhat arbitrary

			if ( x0 < 0.2 ) uvs[ 0 ].x += 1;
			if ( x1 < 0.2 ) uvs[ 1 ].x += 1;
			if ( x2 < 0.2 ) uvs[ 2 ].x += 1;

		}

	}


	// Apply radius

	for ( var i = 0, l = this.vertices.length; i < l; i ++ ) {

		this.vertices[ i ].multiplyScalar( radius );

	}


	// Merge vertices

	this.mergeVertices();

	this.computeFaceNormals();

	this.boundingSphere = new THREE.Sphere( new THREE.Vector3(), radius );


	// Project vector onto sphere's surface

	function prepare( vector ) {

		var vertex = vector.normalize().clone();
		vertex.index = that.vertices.push( vertex ) - 1;

		// Texture coords are equivalent to map coords, calculate angle and convert to fraction of a circle.

		var u = azimuth( vector ) / 2 / Math.PI + 0.5;
		var v = inclination( vector ) / Math.PI + 0.5;
		vertex.uv = new THREE.Vector2( u, 1 - v );

		return vertex;

	}


	// Approximate a curved face with recursively sub-divided triangles.

	function make( v1, v2, v3, materialIndex ) {

		var face = new THREE.Face3( v1.index, v2.index, v3.index, [ v1.clone(), v2.clone(), v3.clone() ], undefined, materialIndex );
		that.faces.push( face );

		centroid.copy( v1 ).add( v2 ).add( v3 ).divideScalar( 3 );

		var azi = azimuth( centroid );

		that.faceVertexUvs[ 0 ].push( [
			correctUV( v1.uv, v1, azi ),
			correctUV( v2.uv, v2, azi ),
			correctUV( v3.uv, v3, azi )
		] );

	}


	// Analytically subdivide a face to the required detail level.

	function subdivide( face, detail ) {

		var cols = Math.pow( 2, detail );
		var a = prepare( that.vertices[ face.a ] );
		var b = prepare( that.vertices[ face.b ] );
		var c = prepare( that.vertices[ face.c ] );
		var v = [];

		var materialIndex = face.materialIndex;

		// Construct all of the vertices for this subdivision.

		for ( var i = 0 ; i <= cols; i ++ ) {

			v[ i ] = [];

			var aj = prepare( a.clone().lerp( c, i / cols ) );
			var bj = prepare( b.clone().lerp( c, i / cols ) );
			var rows = cols - i;

			for ( var j = 0; j <= rows; j ++ ) {

				if ( j === 0 && i === cols ) {

					v[ i ][ j ] = aj;

				} else {

					v[ i ][ j ] = prepare( aj.clone().lerp( bj, j / rows ) );

				}

			}

		}

		// Construct all of the faces.

		for ( var i = 0; i < cols ; i ++ ) {

			for ( var j = 0; j < 2 * ( cols - i ) - 1; j ++ ) {

				var k = Math.floor( j / 2 );

				if ( j % 2 === 0 ) {

					make(
						v[ i ][ k + 1 ],
						v[ i + 1 ][ k ],
						v[ i ][ k ],
						materialIndex
					);

				} else {

					make(
						v[ i ][ k + 1 ],
						v[ i + 1 ][ k + 1 ],
						v[ i + 1 ][ k ],
						materialIndex
					);

				}

			}

		}

	}


	// Angle around the Y axis, counter-clockwise when looking from above.

	function azimuth( vector ) {

		return Math.atan2( vector.z, - vector.x );

	}


	// Angle above the XZ plane.

	function inclination( vector ) {

		return Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) );

	}


	// Texture fixing helper. Spheres have some odd behaviours.

	function correctUV( uv, vector, azimuth ) {

		if ( ( azimuth < 0 ) && ( uv.x === 1 ) ) uv = new THREE.Vector2( uv.x - 1, uv.y );
		if ( ( vector.x === 0 ) && ( vector.z === 0 ) ) uv = new THREE.Vector2( azimuth / 2 / Math.PI + 0.5, uv.y );
		return uv.clone();

	}


};

THREE.PolyhedronGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.PolyhedronGeometry.prototype.constructor = THREE.PolyhedronGeometry;

// File:src/extras/geometries/DodecahedronGeometry.js

/**
 * @author Abe Pazos / https://hamoid.com
 */

THREE.DodecahedronGeometry = function ( radius, detail ) {

	var t = ( 1 + Math.sqrt( 5 ) ) / 2;
	var r = 1 / t;

	var vertices = [

		// (±1, ±1, ±1)
		- 1, - 1, - 1,    - 1, - 1,  1,
		- 1,  1, - 1,    - 1,  1,  1,
		 1, - 1, - 1,     1, - 1,  1,
		 1,  1, - 1,     1,  1,  1,

		// (0, ±1/φ, ±φ)
		 0, - r, - t,     0, - r,  t,
		 0,  r, - t,     0,  r,  t,

		// (±1/φ, ±φ, 0)
		- r, - t,  0,    - r,  t,  0,
		 r, - t,  0,     r,  t,  0,

		// (±φ, 0, ±1/φ)
		- t,  0, - r,     t,  0, - r,
		- t,  0,  r,     t,  0,  r
	];

	var indices = [
		 3, 11,  7,      3,  7, 15,      3, 15, 13,
		 7, 19, 17,      7, 17,  6,      7,  6, 15,
		17,  4,  8,     17,  8, 10,     17, 10,  6,
		 8,  0, 16,      8, 16,  2,      8,  2, 10,
		 0, 12,  1,      0,  1, 18,      0, 18, 16,
		 6, 10,  2,      6,  2, 13,      6, 13, 15,
		 2, 16, 18,      2, 18,  3,      2,  3, 13,
		18,  1,  9,     18,  9, 11,     18, 11,  3,
		 4, 14, 12,      4, 12,  0,      4,  0,  8,
		11,  9,  5,     11,  5, 19,     11, 19,  7,
		19,  5, 14,     19, 14,  4,     19,  4, 17,
		 1, 12, 14,      1, 14,  5,      1,  5,  9
	];

	THREE.PolyhedronGeometry.call( this, vertices, indices, radius, detail );

	this.type = 'DodecahedronGeometry';

	this.parameters = {
		radius: radius,
		detail: detail
	};

};

THREE.DodecahedronGeometry.prototype = Object.create( THREE.PolyhedronGeometry.prototype );
THREE.DodecahedronGeometry.prototype.constructor = THREE.DodecahedronGeometry;

// File:src/extras/geometries/IcosahedronGeometry.js

/**
 * @author timothypratley / https://github.com/timothypratley
 */

THREE.IcosahedronGeometry = function ( radius, detail ) {

	var t = ( 1 + Math.sqrt( 5 ) ) / 2;

	var vertices = [
		- 1,  t,  0,    1,  t,  0,   - 1, - t,  0,    1, - t,  0,
		 0, - 1,  t,    0,  1,  t,    0, - 1, - t,    0,  1, - t,
		 t,  0, - 1,    t,  0,  1,   - t,  0, - 1,   - t,  0,  1
	];

	var indices = [
		 0, 11,  5,    0,  5,  1,    0,  1,  7,    0,  7, 10,    0, 10, 11,
		 1,  5,  9,    5, 11,  4,   11, 10,  2,   10,  7,  6,    7,  1,  8,
		 3,  9,  4,    3,  4,  2,    3,  2,  6,    3,  6,  8,    3,  8,  9,
		 4,  9,  5,    2,  4, 11,    6,  2, 10,    8,  6,  7,    9,  8,  1
	];

	THREE.PolyhedronGeometry.call( this, vertices, indices, radius, detail );

	this.type = 'IcosahedronGeometry';

	this.parameters = {
		radius: radius,
		detail: detail
	};

};

THREE.IcosahedronGeometry.prototype = Object.create( THREE.PolyhedronGeometry.prototype );
THREE.IcosahedronGeometry.prototype.constructor = THREE.IcosahedronGeometry;

// File:src/extras/geometries/OctahedronGeometry.js

/**
 * @author timothypratley / https://github.com/timothypratley
 */

THREE.OctahedronGeometry = function ( radius, detail ) {

	var vertices = [
		1, 0, 0,   - 1, 0, 0,    0, 1, 0,    0, - 1, 0,    0, 0, 1,    0, 0, - 1
	];

	var indices = [
		0, 2, 4,    0, 4, 3,    0, 3, 5,    0, 5, 2,    1, 2, 5,    1, 5, 3,    1, 3, 4,    1, 4, 2
	];

	THREE.PolyhedronGeometry.call( this, vertices, indices, radius, detail );

	this.type = 'OctahedronGeometry';

	this.parameters = {
		radius: radius,
		detail: detail
	};

};

THREE.OctahedronGeometry.prototype = Object.create( THREE.PolyhedronGeometry.prototype );
THREE.OctahedronGeometry.prototype.constructor = THREE.OctahedronGeometry;

// File:src/extras/geometries/TetrahedronGeometry.js

/**
 * @author timothypratley / https://github.com/timothypratley
 */

THREE.TetrahedronGeometry = function ( radius, detail ) {

	var vertices = [
		 1,  1,  1,   - 1, - 1,  1,   - 1,  1, - 1,    1, - 1, - 1
	];

	var indices = [
		 2,  1,  0,    0,  3,  2,    1,  3,  0,    2,  3,  1
	];

	THREE.PolyhedronGeometry.call( this, vertices, indices, radius, detail );

	this.type = 'TetrahedronGeometry';

	this.parameters = {
		radius: radius,
		detail: detail
	};

};

THREE.TetrahedronGeometry.prototype = Object.create( THREE.PolyhedronGeometry.prototype );
THREE.TetrahedronGeometry.prototype.constructor = THREE.TetrahedronGeometry;

// File:src/extras/geometries/ParametricGeometry.js

/**
 * @author zz85 / https://github.com/zz85
 * Parametric Surfaces Geometry
 * based on the brilliant article by @prideout http://prideout.net/blog/?p=44
 *
 * new THREE.ParametricGeometry( parametricFunction, uSegments, ySegements );
 *
 */

THREE.ParametricGeometry = function ( func, slices, stacks ) {

	THREE.Geometry.call( this );

	this.type = 'ParametricGeometry';

	this.parameters = {
		func: func,
		slices: slices,
		stacks: stacks
	};

	var verts = this.vertices;
	var faces = this.faces;
	var uvs = this.faceVertexUvs[ 0 ];

	var i, j, p;
	var u, v;

	var sliceCount = slices + 1;

	for ( i = 0; i <= stacks; i ++ ) {

		v = i / stacks;

		for ( j = 0; j <= slices; j ++ ) {

			u = j / slices;

			p = func( u, v );
			verts.push( p );

		}

	}

	var a, b, c, d;
	var uva, uvb, uvc, uvd;

	for ( i = 0; i < stacks; i ++ ) {

		for ( j = 0; j < slices; j ++ ) {

			a = i * sliceCount + j;
			b = i * sliceCount + j + 1;
			c = ( i + 1 ) * sliceCount + j + 1;
			d = ( i + 1 ) * sliceCount + j;

			uva = new THREE.Vector2( j / slices, i / stacks );
			uvb = new THREE.Vector2( ( j + 1 ) / slices, i / stacks );
			uvc = new THREE.Vector2( ( j + 1 ) / slices, ( i + 1 ) / stacks );
			uvd = new THREE.Vector2( j / slices, ( i + 1 ) / stacks );

			faces.push( new THREE.Face3( a, b, d ) );
			uvs.push( [ uva, uvb, uvd ] );

			faces.push( new THREE.Face3( b, c, d ) );
			uvs.push( [ uvb.clone(), uvc, uvd.clone() ] );

		}

	}

	// console.log(this);

	// magic bullet
	// var diff = this.mergeVertices();
	// console.log('removed ', diff, ' vertices by merging');

	this.computeFaceNormals();
	this.computeVertexNormals();

};

THREE.ParametricGeometry.prototype = Object.create( THREE.Geometry.prototype );
THREE.ParametricGeometry.prototype.constructor = THREE.ParametricGeometry;

// File:src/extras/geometries/WireframeGeometry.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.WireframeGeometry = function ( geometry ) {

	THREE.BufferGeometry.call( this );

	var edge = [ 0, 0 ], hash = {};

	function sortFunction( a, b ) {

		return a - b;

	}

	var keys = [ 'a', 'b', 'c' ];

	if ( geometry instanceof THREE.Geometry ) {

		var vertices = geometry.vertices;
		var faces = geometry.faces;
		var numEdges = 0;

		// allocate maximal size
		var edges = new Uint32Array( 6 * faces.length );

		for ( var i = 0, l = faces.length; i < l; i ++ ) {

			var face = faces[ i ];

			for ( var j = 0; j < 3; j ++ ) {

				edge[ 0 ] = face[ keys[ j ] ];
				edge[ 1 ] = face[ keys[ ( j + 1 ) % 3 ] ];
				edge.sort( sortFunction );

				var key = edge.toString();

				if ( hash[ key ] === undefined ) {

					edges[ 2 * numEdges ] = edge[ 0 ];
					edges[ 2 * numEdges + 1 ] = edge[ 1 ];
					hash[ key ] = true;
					numEdges ++;

				}

			}

		}

		var coords = new Float32Array( numEdges * 2 * 3 );

		for ( var i = 0, l = numEdges; i < l; i ++ ) {

			for ( var j = 0; j < 2; j ++ ) {

				var vertex = vertices[ edges [ 2 * i + j ] ];

				var index = 6 * i + 3 * j;
				coords[ index + 0 ] = vertex.x;
				coords[ index + 1 ] = vertex.y;
				coords[ index + 2 ] = vertex.z;

			}

		}

		this.addAttribute( 'position', new THREE.BufferAttribute( coords, 3 ) );

	} else if ( geometry instanceof THREE.BufferGeometry ) {

		if ( geometry.index !== null ) {

			// Indexed BufferGeometry

			var indices = geometry.index.array;
			var vertices = geometry.attributes.position;
			var groups = geometry.groups;
			var numEdges = 0;

			if ( groups.length === 0 ) {

				geometry.addGroup( 0, indices.length );

			}

			// allocate maximal size
			var edges = new Uint32Array( 2 * indices.length );

			for ( var o = 0, ol = groups.length; o < ol; ++ o ) {

				var group = groups[ o ];

				var start = group.start;
				var count = group.count;

				for ( var i = start, il = start + count; i < il; i += 3 ) {

					for ( var j = 0; j < 3; j ++ ) {

						edge[ 0 ] = indices[ i + j ];
						edge[ 1 ] = indices[ i + ( j + 1 ) % 3 ];
						edge.sort( sortFunction );

						var key = edge.toString();

						if ( hash[ key ] === undefined ) {

							edges[ 2 * numEdges ] = edge[ 0 ];
							edges[ 2 * numEdges + 1 ] = edge[ 1 ];
							hash[ key ] = true;
							numEdges ++;

						}

					}

				}

			}

			var coords = new Float32Array( numEdges * 2 * 3 );

			for ( var i = 0, l = numEdges; i < l; i ++ ) {

				for ( var j = 0; j < 2; j ++ ) {

					var index = 6 * i + 3 * j;
					var index2 = edges[ 2 * i + j ];

					coords[ index + 0 ] = vertices.getX( index2 );
					coords[ index + 1 ] = vertices.getY( index2 );
					coords[ index + 2 ] = vertices.getZ( index2 );

				}

			}

			this.addAttribute( 'position', new THREE.BufferAttribute( coords, 3 ) );

		} else {

			// non-indexed BufferGeometry

			var vertices = geometry.attributes.position.array;
			var numEdges = vertices.length / 3;
			var numTris = numEdges / 3;

			var coords = new Float32Array( numEdges * 2 * 3 );

			for ( var i = 0, l = numTris; i < l; i ++ ) {

				for ( var j = 0; j < 3; j ++ ) {

					var index = 18 * i + 6 * j;

					var index1 = 9 * i + 3 * j;
					coords[ index + 0 ] = vertices[ index1 ];
					coords[ index + 1 ] = vertices[ index1 + 1 ];
					coords[ index + 2 ] = vertices[ index1 + 2 ];

					var index2 = 9 * i + 3 * ( ( j + 1 ) % 3 );
					coords[ index + 3 ] = vertices[ index2 ];
					coords[ index + 4 ] = vertices[ index2 + 1 ];
					coords[ index + 5 ] = vertices[ index2 + 2 ];

				}

			}

			this.addAttribute( 'position', new THREE.BufferAttribute( coords, 3 ) );

		}

	}

};

THREE.WireframeGeometry.prototype = Object.create( THREE.BufferGeometry.prototype );
THREE.WireframeGeometry.prototype.constructor = THREE.WireframeGeometry;

// File:src/extras/helpers/AxisHelper.js

/**
 * @author sroucheray / http://sroucheray.org/
 * @author mrdoob / http://mrdoob.com/
 */

THREE.AxisHelper = function ( size ) {

	size = size || 1;

	var vertices = new Float32Array( [
		0, 0, 0,  size, 0, 0,
		0, 0, 0,  0, size, 0,
		0, 0, 0,  0, 0, size
	] );

	var colors = new Float32Array( [
		1, 0, 0,  1, 0.6, 0,
		0, 1, 0,  0.6, 1, 0,
		0, 0, 1,  0, 0.6, 1
	] );

	var geometry = new THREE.BufferGeometry();
	geometry.addAttribute( 'position', new THREE.BufferAttribute( vertices, 3 ) );
	geometry.addAttribute( 'color', new THREE.BufferAttribute( colors, 3 ) );

	var material = new THREE.LineBasicMaterial( { vertexColors: THREE.VertexColors } );

	THREE.LineSegments.call( this, geometry, material );

};

THREE.AxisHelper.prototype = Object.create( THREE.LineSegments.prototype );
THREE.AxisHelper.prototype.constructor = THREE.AxisHelper;

// File:src/extras/helpers/ArrowHelper.js

/**
 * @author WestLangley / http://github.com/WestLangley
 * @author zz85 / http://github.com/zz85
 * @author bhouston / http://clara.io
 *
 * Creates an arrow for visualizing directions
 *
 * Parameters:
 *  dir - Vector3
 *  origin - Vector3
 *  length - Number
 *  color - color in hex value
 *  headLength - Number
 *  headWidth - Number
 */

THREE.ArrowHelper = ( function () {

	var lineGeometry = new THREE.Geometry();
	lineGeometry.vertices.push( new THREE.Vector3( 0, 0, 0 ), new THREE.Vector3( 0, 1, 0 ) );

	var coneGeometry = new THREE.CylinderGeometry( 0, 0.5, 1, 5, 1 );
	coneGeometry.translate( 0, - 0.5, 0 );

	return function ArrowHelper( dir, origin, length, color, headLength, headWidth ) {

		// dir is assumed to be normalized

		THREE.Object3D.call( this );

		if ( color === undefined ) color = 0xffff00;
		if ( length === undefined ) length = 1;
		if ( headLength === undefined ) headLength = 0.2 * length;
		if ( headWidth === undefined ) headWidth = 0.2 * headLength;

		this.position.copy( origin );
		
		this.line = new THREE.Line( lineGeometry, new THREE.LineBasicMaterial( { color: color } ) );
		this.line.matrixAutoUpdate = false;
		this.add( this.line );

		this.cone = new THREE.Mesh( coneGeometry, new THREE.MeshBasicMaterial( { color: color } ) );
		this.cone.matrixAutoUpdate = false;
		this.add( this.cone );

		this.setDirection( dir );
		this.setLength( length, headLength, headWidth );

	}

}() );

THREE.ArrowHelper.prototype = Object.create( THREE.Object3D.prototype );
THREE.ArrowHelper.prototype.constructor = THREE.ArrowHelper;

THREE.ArrowHelper.prototype.setDirection = ( function () {

	var axis = new THREE.Vector3();
	var radians;

	return function setDirection( dir ) {

		// dir is assumed to be normalized

		if ( dir.y > 0.99999 ) {

			this.quaternion.set( 0, 0, 0, 1 );

		} else if ( dir.y < - 0.99999 ) {

			this.quaternion.set( 1, 0, 0, 0 );

		} else {

			axis.set( dir.z, 0, - dir.x ).normalize();

			radians = Math.acos( dir.y );

			this.quaternion.setFromAxisAngle( axis, radians );

		}

	};

}() );

THREE.ArrowHelper.prototype.setLength = function ( length, headLength, headWidth ) {

	if ( headLength === undefined ) headLength = 0.2 * length;
	if ( headWidth === undefined ) headWidth = 0.2 * headLength;

	this.line.scale.set( 1, Math.max( 0, length - headLength ), 1 );
	this.line.updateMatrix();

	this.cone.scale.set( headWidth, headLength, headWidth );
	this.cone.position.y = length;
	this.cone.updateMatrix();

};

THREE.ArrowHelper.prototype.setColor = function ( color ) {

	this.line.material.color.set( color );
	this.cone.material.color.set( color );

};

// File:src/extras/helpers/BoxHelper.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.BoxHelper = function ( object ) {

	var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
	var positions = new Float32Array( 8 * 3 );

	var geometry = new THREE.BufferGeometry();
	geometry.setIndex( new THREE.BufferAttribute( indices, 1 ) );
	geometry.addAttribute( 'position', new THREE.BufferAttribute( positions, 3 ) );

	THREE.LineSegments.call( this, geometry, new THREE.LineBasicMaterial( { color: 0xffff00 } ) );

	if ( object !== undefined ) {

		this.update( object );

	}

};

THREE.BoxHelper.prototype = Object.create( THREE.LineSegments.prototype );
THREE.BoxHelper.prototype.constructor = THREE.BoxHelper;

THREE.BoxHelper.prototype.update = ( function () {

	var box = new THREE.Box3();

	return function ( object ) {

		box.setFromObject( object );

		if ( box.isEmpty() ) return;

		var min = box.min;
		var max = box.max;

		/*
		  5____4
		1/___0/|
		| 6__|_7
		2/___3/

		0: max.x, max.y, max.z
		1: min.x, max.y, max.z
		2: min.x, min.y, max.z
		3: max.x, min.y, max.z
		4: max.x, max.y, min.z
		5: min.x, max.y, min.z
		6: min.x, min.y, min.z
		7: max.x, min.y, min.z
		*/

		var position = this.geometry.attributes.position;
		var array = position.array;

		array[  0 ] = max.x; array[  1 ] = max.y; array[  2 ] = max.z;
		array[  3 ] = min.x; array[  4 ] = max.y; array[  5 ] = max.z;
		array[  6 ] = min.x; array[  7 ] = min.y; array[  8 ] = max.z;
		array[  9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;
		array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;
		array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;
		array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;
		array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;

		position.needsUpdate = true;

		this.geometry.computeBoundingSphere();

	};

} )();

// File:src/extras/helpers/BoundingBoxHelper.js

/**
 * @author WestLangley / http://github.com/WestLangley
 */

// a helper to show the world-axis-aligned bounding box for an object

THREE.BoundingBoxHelper = function ( object, hex ) {

	var color = ( hex !== undefined ) ? hex : 0x888888;

	this.object = object;

	this.box = new THREE.Box3();

	THREE.Mesh.call( this, new THREE.BoxGeometry( 1, 1, 1 ), new THREE.MeshBasicMaterial( { color: color, wireframe: true } ) );

};

THREE.BoundingBoxHelper.prototype = Object.create( THREE.Mesh.prototype );
THREE.BoundingBoxHelper.prototype.constructor = THREE.BoundingBoxHelper;

THREE.BoundingBoxHelper.prototype.update = function () {

	this.box.setFromObject( this.object );

	this.box.size( this.scale );

	this.box.center( this.position );

};

// File:src/extras/helpers/CameraHelper.js

/**
 * @author alteredq / http://alteredqualia.com/
 *
 *	- shows frustum, line of sight and up of the camera
 *	- suitable for fast updates
 * 	- based on frustum visualization in lightgl.js shadowmap example
 *		http://evanw.github.com/lightgl.js/tests/shadowmap.html
 */

THREE.CameraHelper = function ( camera ) {

	var geometry = new THREE.Geometry();
	var material = new THREE.LineBasicMaterial( { color: 0xffffff, vertexColors: THREE.FaceColors } );

	var pointMap = {};

	// colors

	var hexFrustum = 0xffaa00;
	var hexCone = 0xff0000;
	var hexUp = 0x00aaff;
	var hexTarget = 0xffffff;
	var hexCross = 0x333333;

	// near

	addLine( "n1", "n2", hexFrustum );
	addLine( "n2", "n4", hexFrustum );
	addLine( "n4", "n3", hexFrustum );
	addLine( "n3", "n1", hexFrustum );

	// far

	addLine( "f1", "f2", hexFrustum );
	addLine( "f2", "f4", hexFrustum );
	addLine( "f4", "f3", hexFrustum );
	addLine( "f3", "f1", hexFrustum );

	// sides

	addLine( "n1", "f1", hexFrustum );
	addLine( "n2", "f2", hexFrustum );
	addLine( "n3", "f3", hexFrustum );
	addLine( "n4", "f4", hexFrustum );

	// cone

	addLine( "p", "n1", hexCone );
	addLine( "p", "n2", hexCone );
	addLine( "p", "n3", hexCone );
	addLine( "p", "n4", hexCone );

	// up

	addLine( "u1", "u2", hexUp );
	addLine( "u2", "u3", hexUp );
	addLine( "u3", "u1", hexUp );

	// target

	addLine( "c", "t", hexTarget );
	addLine( "p", "c", hexCross );

	// cross

	addLine( "cn1", "cn2", hexCross );
	addLine( "cn3", "cn4", hexCross );

	addLine( "cf1", "cf2", hexCross );
	addLine( "cf3", "cf4", hexCross );

	function addLine( a, b, hex ) {

		addPoint( a, hex );
		addPoint( b, hex );

	}

	function addPoint( id, hex ) {

		geometry.vertices.push( new THREE.Vector3() );
		geometry.colors.push( new THREE.Color( hex ) );

		if ( pointMap[ id ] === undefined ) {

			pointMap[ id ] = [];

		}

		pointMap[ id ].push( geometry.vertices.length - 1 );

	}

	THREE.LineSegments.call( this, geometry, material );

	this.camera = camera;
	this.camera.updateProjectionMatrix();

	this.matrix = camera.matrixWorld;
	this.matrixAutoUpdate = false;

	this.pointMap = pointMap;

	this.update();

};

THREE.CameraHelper.prototype = Object.create( THREE.LineSegments.prototype );
THREE.CameraHelper.prototype.constructor = THREE.CameraHelper;

THREE.CameraHelper.prototype.update = function () {

	var geometry, pointMap;

	var vector = new THREE.Vector3();
	var camera = new THREE.Camera();

	function setPoint( point, x, y, z ) {

		vector.set( x, y, z ).unproject( camera );

		var points = pointMap[ point ];

		if ( points !== undefined ) {

			for ( var i = 0, il = points.length; i < il; i ++ ) {

				geometry.vertices[ points[ i ] ].copy( vector );

			}

		}

	}

	return function () {

		geometry = this.geometry;
		pointMap = this.pointMap;

		var w = 1, h = 1;

		// we need just camera projection matrix
		// world matrix must be identity

		camera.projectionMatrix.copy( this.camera.projectionMatrix );

		// center / target

		setPoint( "c", 0, 0, - 1 );
		setPoint( "t", 0, 0,  1 );

		// near

		setPoint( "n1", - w, - h, - 1 );
		setPoint( "n2",   w, - h, - 1 );
		setPoint( "n3", - w,   h, - 1 );
		setPoint( "n4",   w,   h, - 1 );

		// far

		setPoint( "f1", - w, - h, 1 );
		setPoint( "f2",   w, - h, 1 );
		setPoint( "f3", - w,   h, 1 );
		setPoint( "f4",   w,   h, 1 );

		// up

		setPoint( "u1",   w * 0.7, h * 1.1, - 1 );
		setPoint( "u2", - w * 0.7, h * 1.1, - 1 );
		setPoint( "u3",         0, h * 2,   - 1 );

		// cross

		setPoint( "cf1", - w,   0, 1 );
		setPoint( "cf2",   w,   0, 1 );
		setPoint( "cf3",   0, - h, 1 );
		setPoint( "cf4",   0,   h, 1 );

		setPoint( "cn1", - w,   0, - 1 );
		setPoint( "cn2",   w,   0, - 1 );
		setPoint( "cn3",   0, - h, - 1 );
		setPoint( "cn4",   0,   h, - 1 );

		geometry.verticesNeedUpdate = true;

	};

}();

// File:src/extras/helpers/DirectionalLightHelper.js

/**
 * @author alteredq / http://alteredqualia.com/
 * @author mrdoob / http://mrdoob.com/
 * @author WestLangley / http://github.com/WestLangley
 */

THREE.DirectionalLightHelper = function ( light, size ) {

	THREE.Object3D.call( this );

	this.light = light;
	this.light.updateMatrixWorld();

	this.matrix = light.matrixWorld;
	this.matrixAutoUpdate = false;

	size = size || 1;

	var geometry = new THREE.Geometry();
	geometry.vertices.push(
		new THREE.Vector3( - size,   size, 0 ),
		new THREE.Vector3(   size,   size, 0 ),
		new THREE.Vector3(   size, - size, 0 ),
		new THREE.Vector3( - size, - size, 0 ),
		new THREE.Vector3( - size,   size, 0 )
	);

	var material = new THREE.LineBasicMaterial( { fog: false } );
	material.color.copy( this.light.color ).multiplyScalar( this.light.intensity );

	this.lightPlane = new THREE.Line( geometry, material );
	this.add( this.lightPlane );

	geometry = new THREE.Geometry();
	geometry.vertices.push(
		new THREE.Vector3(),
		new THREE.Vector3()
	);

	material = new THREE.LineBasicMaterial( { fog: false } );
	material.color.copy( this.light.color ).multiplyScalar( this.light.intensity );

	this.targetLine = new THREE.Line( geometry, material );
	this.add( this.targetLine );

	this.update();

};

THREE.DirectionalLightHelper.prototype = Object.create( THREE.Object3D.prototype );
THREE.DirectionalLightHelper.prototype.constructor = THREE.DirectionalLightHelper;

THREE.DirectionalLightHelper.prototype.dispose = function () {

	this.lightPlane.geometry.dispose();
	this.lightPlane.material.dispose();
	this.targetLine.geometry.dispose();
	this.targetLine.material.dispose();

};

THREE.DirectionalLightHelper.prototype.update = function () {

	var v1 = new THREE.Vector3();
	var v2 = new THREE.Vector3();
	var v3 = new THREE.Vector3();

	return function () {

		v1.setFromMatrixPosition( this.light.matrixWorld );
		v2.setFromMatrixPosition( this.light.target.matrixWorld );
		v3.subVectors( v2, v1 );

		this.lightPlane.lookAt( v3 );
		this.lightPlane.material.color.copy( this.light.color ).multiplyScalar( this.light.intensity );

		this.targetLine.geometry.vertices[ 1 ].copy( v3 );
		this.targetLine.geometry.verticesNeedUpdate = true;
		this.targetLine.material.color.copy( this.lightPlane.material.color );

	};

}();

// File:src/extras/helpers/EdgesHelper.js

/**
 * @author WestLangley / http://github.com/WestLangley
 * @param object THREE.Mesh whose geometry will be used
 * @param hex line color
 * @param thresholdAngle the minimum angle (in degrees),
 * between the face normals of adjacent faces,
 * that is required to render an edge. A value of 10 means
 * an edge is only rendered if the angle is at least 10 degrees.
 */

THREE.EdgesHelper = function ( object, hex, thresholdAngle ) {

	var color = ( hex !== undefined ) ? hex : 0xffffff;

	THREE.LineSegments.call( this, new THREE.EdgesGeometry( object.geometry, thresholdAngle ), new THREE.LineBasicMaterial( { color: color } ) );

	this.matrix = object.matrixWorld;
	this.matrixAutoUpdate = false;

};

THREE.EdgesHelper.prototype = Object.create( THREE.LineSegments.prototype );
THREE.EdgesHelper.prototype.constructor = THREE.EdgesHelper;

// File:src/extras/helpers/FaceNormalsHelper.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author WestLangley / http://github.com/WestLangley
*/

THREE.FaceNormalsHelper = function ( object, size, hex, linewidth ) {

	// FaceNormalsHelper only supports THREE.Geometry

	this.object = object;

	this.size = ( size !== undefined ) ? size : 1;

	var color = ( hex !== undefined ) ? hex : 0xffff00;

	var width = ( linewidth !== undefined ) ? linewidth : 1;

	//

	var nNormals = 0;

	var objGeometry = this.object.geometry;

	if ( objGeometry instanceof THREE.Geometry ) {

		nNormals = objGeometry.faces.length;

	} else {

		console.warn( 'THREE.FaceNormalsHelper: only THREE.Geometry is supported. Use THREE.VertexNormalsHelper, instead.' );

	}

	//

	var geometry = new THREE.BufferGeometry();

	var positions = new THREE.Float32Attribute( nNormals * 2 * 3, 3 );

	geometry.addAttribute( 'position', positions );

	THREE.LineSegments.call( this, geometry, new THREE.LineBasicMaterial( { color: color, linewidth: width } ) );

	//

	this.matrixAutoUpdate = false;
	this.update();

};

THREE.FaceNormalsHelper.prototype = Object.create( THREE.LineSegments.prototype );
THREE.FaceNormalsHelper.prototype.constructor = THREE.FaceNormalsHelper;

THREE.FaceNormalsHelper.prototype.update = ( function () {

	var v1 = new THREE.Vector3();
	var v2 = new THREE.Vector3();
	var normalMatrix = new THREE.Matrix3();

	return function update() {

		this.object.updateMatrixWorld( true );

		normalMatrix.getNormalMatrix( this.object.matrixWorld );

		var matrixWorld = this.object.matrixWorld;

		var position = this.geometry.attributes.position;

		//

		var objGeometry = this.object.geometry;

		var vertices = objGeometry.vertices;

		var faces = objGeometry.faces;

		var idx = 0;

		for ( var i = 0, l = faces.length; i < l; i ++ ) {

			var face = faces[ i ];

			var normal = face.normal;

			v1.copy( vertices[ face.a ] )
				.add( vertices[ face.b ] )
				.add( vertices[ face.c ] )
				.divideScalar( 3 )
				.applyMatrix4( matrixWorld );

			v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );

			position.setXYZ( idx, v1.x, v1.y, v1.z );

			idx = idx + 1;

			position.setXYZ( idx, v2.x, v2.y, v2.z );

			idx = idx + 1;

		}

		position.needsUpdate = true;

		return this;

	}

}() );

// File:src/extras/helpers/GridHelper.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.GridHelper = function ( size, step ) {

	var geometry = new THREE.Geometry();
	var material = new THREE.LineBasicMaterial( { vertexColors: THREE.VertexColors } );

	this.color1 = new THREE.Color( 0x444444 );
	this.color2 = new THREE.Color( 0x888888 );

	for ( var i = - size; i <= size; i += step ) {

		geometry.vertices.push(
			new THREE.Vector3( - size, 0, i ), new THREE.Vector3( size, 0, i ),
			new THREE.Vector3( i, 0, - size ), new THREE.Vector3( i, 0, size )
		);

		var color = i === 0 ? this.color1 : this.color2;

		geometry.colors.push( color, color, color, color );

	}

	THREE.LineSegments.call( this, geometry, material );

};

THREE.GridHelper.prototype = Object.create( THREE.LineSegments.prototype );
THREE.GridHelper.prototype.constructor = THREE.GridHelper;

THREE.GridHelper.prototype.setColors = function( colorCenterLine, colorGrid ) {

	this.color1.set( colorCenterLine );
	this.color2.set( colorGrid );

	this.geometry.colorsNeedUpdate = true;

};

// File:src/extras/helpers/HemisphereLightHelper.js

/**
 * @author alteredq / http://alteredqualia.com/
 * @author mrdoob / http://mrdoob.com/
 */

THREE.HemisphereLightHelper = function ( light, sphereSize ) {

	THREE.Object3D.call( this );

	this.light = light;
	this.light.updateMatrixWorld();

	this.matrix = light.matrixWorld;
	this.matrixAutoUpdate = false;

	this.colors = [ new THREE.Color(), new THREE.Color() ];

	var geometry = new THREE.SphereGeometry( sphereSize, 4, 2 );
	geometry.rotateX( - Math.PI / 2 );

	for ( var i = 0, il = 8; i < il; i ++ ) {

		geometry.faces[ i ].color = this.colors[ i < 4 ? 0 : 1 ];

	}

	var material = new THREE.MeshBasicMaterial( { vertexColors: THREE.FaceColors, wireframe: true } );

	this.lightSphere = new THREE.Mesh( geometry, material );
	this.add( this.lightSphere );

	this.update();

};

THREE.HemisphereLightHelper.prototype = Object.create( THREE.Object3D.prototype );
THREE.HemisphereLightHelper.prototype.constructor = THREE.HemisphereLightHelper;

THREE.HemisphereLightHelper.prototype.dispose = function () {

	this.lightSphere.geometry.dispose();
	this.lightSphere.material.dispose();

};

THREE.HemisphereLightHelper.prototype.update = function () {

	var vector = new THREE.Vector3();

	return function () {

		this.colors[ 0 ].copy( this.light.color ).multiplyScalar( this.light.intensity );
		this.colors[ 1 ].copy( this.light.groundColor ).multiplyScalar( this.light.intensity );

		this.lightSphere.lookAt( vector.setFromMatrixPosition( this.light.matrixWorld ).negate() );
		this.lightSphere.geometry.colorsNeedUpdate = true;

	}

}();

// File:src/extras/helpers/PointLightHelper.js

/**
 * @author alteredq / http://alteredqualia.com/
 * @author mrdoob / http://mrdoob.com/
 */

THREE.PointLightHelper = function ( light, sphereSize ) {

	this.light = light;
	this.light.updateMatrixWorld();

	var geometry = new THREE.SphereGeometry( sphereSize, 4, 2 );
	var material = new THREE.MeshBasicMaterial( { wireframe: true, fog: false } );
	material.color.copy( this.light.color ).multiplyScalar( this.light.intensity );

	THREE.Mesh.call( this, geometry, material );

	this.matrix = this.light.matrixWorld;
	this.matrixAutoUpdate = false;

	/*
	var distanceGeometry = new THREE.IcosahedronGeometry( 1, 2 );
	var distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );

	this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
	this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );

	var d = light.distance;

	if ( d === 0.0 ) {

		this.lightDistance.visible = false;

	} else {

		this.lightDistance.scale.set( d, d, d );

	}

	this.add( this.lightDistance );
	*/

};

THREE.PointLightHelper.prototype = Object.create( THREE.Mesh.prototype );
THREE.PointLightHelper.prototype.constructor = THREE.PointLightHelper;

THREE.PointLightHelper.prototype.dispose = function () {

	this.geometry.dispose();
	this.material.dispose();

};

THREE.PointLightHelper.prototype.update = function () {

	this.material.color.copy( this.light.color ).multiplyScalar( this.light.intensity );

	/*
	var d = this.light.distance;

	if ( d === 0.0 ) {

		this.lightDistance.visible = false;

	} else {

		this.lightDistance.visible = true;
		this.lightDistance.scale.set( d, d, d );

	}
	*/

};

// File:src/extras/helpers/SkeletonHelper.js

/**
 * @author Sean Griffin / http://twitter.com/sgrif
 * @author Michael Guerrero / http://realitymeltdown.com
 * @author mrdoob / http://mrdoob.com/
 * @author ikerr / http://verold.com
 */

THREE.SkeletonHelper = function ( object ) {

	this.bones = this.getBoneList( object );

	var geometry = new THREE.Geometry();

	for ( var i = 0; i < this.bones.length; i ++ ) {

		var bone = this.bones[ i ];

		if ( bone.parent instanceof THREE.Bone ) {

			geometry.vertices.push( new THREE.Vector3() );
			geometry.vertices.push( new THREE.Vector3() );
			geometry.colors.push( new THREE.Color( 0, 0, 1 ) );
			geometry.colors.push( new THREE.Color( 0, 1, 0 ) );

		}

	}

	geometry.dynamic = true;

	var material = new THREE.LineBasicMaterial( { vertexColors: THREE.VertexColors, depthTest: false, depthWrite: false, transparent: true } );

	THREE.LineSegments.call( this, geometry, material );

	this.root = object;

	this.matrix = object.matrixWorld;
	this.matrixAutoUpdate = false;

	this.update();

};


THREE.SkeletonHelper.prototype = Object.create( THREE.LineSegments.prototype );
THREE.SkeletonHelper.prototype.constructor = THREE.SkeletonHelper;

THREE.SkeletonHelper.prototype.getBoneList = function( object ) {

	var boneList = [];

	if ( object instanceof THREE.Bone ) {

		boneList.push( object );

	}

	for ( var i = 0; i < object.children.length; i ++ ) {

		boneList.push.apply( boneList, this.getBoneList( object.children[ i ] ) );

	}

	return boneList;

};

THREE.SkeletonHelper.prototype.update = function () {

	var geometry = this.geometry;

	var matrixWorldInv = new THREE.Matrix4().getInverse( this.root.matrixWorld );

	var boneMatrix = new THREE.Matrix4();

	var j = 0;

	for ( var i = 0; i < this.bones.length; i ++ ) {

		var bone = this.bones[ i ];

		if ( bone.parent instanceof THREE.Bone ) {

			boneMatrix.multiplyMatrices( matrixWorldInv, bone.matrixWorld );
			geometry.vertices[ j ].setFromMatrixPosition( boneMatrix );

			boneMatrix.multiplyMatrices( matrixWorldInv, bone.parent.matrixWorld );
			geometry.vertices[ j + 1 ].setFromMatrixPosition( boneMatrix );

			j += 2;

		}

	}

	geometry.verticesNeedUpdate = true;

	geometry.computeBoundingSphere();

};

// File:src/extras/helpers/SpotLightHelper.js

/**
 * @author alteredq / http://alteredqualia.com/
 * @author mrdoob / http://mrdoob.com/
 * @author WestLangley / http://github.com/WestLangley
*/

THREE.SpotLightHelper = function ( light ) {

	THREE.Object3D.call( this );

	this.light = light;
	this.light.updateMatrixWorld();

	this.matrix = light.matrixWorld;
	this.matrixAutoUpdate = false;

	var geometry = new THREE.CylinderGeometry( 0, 1, 1, 8, 1, true );

	geometry.translate( 0, - 0.5, 0 );
	geometry.rotateX( - Math.PI / 2 );

	var material = new THREE.MeshBasicMaterial( { wireframe: true, fog: false } );

	this.cone = new THREE.Mesh( geometry, material );
	this.add( this.cone );

	this.update();

};

THREE.SpotLightHelper.prototype = Object.create( THREE.Object3D.prototype );
THREE.SpotLightHelper.prototype.constructor = THREE.SpotLightHelper;

THREE.SpotLightHelper.prototype.dispose = function () {

	this.cone.geometry.dispose();
	this.cone.material.dispose();

};

THREE.SpotLightHelper.prototype.update = function () {

	var vector = new THREE.Vector3();
	var vector2 = new THREE.Vector3();

	return function () {

		var coneLength = this.light.distance ? this.light.distance : 10000;
		var coneWidth = coneLength * Math.tan( this.light.angle );

		this.cone.scale.set( coneWidth, coneWidth, coneLength );

		vector.setFromMatrixPosition( this.light.matrixWorld );
		vector2.setFromMatrixPosition( this.light.target.matrixWorld );

		this.cone.lookAt( vector2.sub( vector ) );

		this.cone.material.color.copy( this.light.color ).multiplyScalar( this.light.intensity );

	};

}();

// File:src/extras/helpers/VertexNormalsHelper.js

/**
 * @author mrdoob / http://mrdoob.com/
 * @author WestLangley / http://github.com/WestLangley
*/

THREE.VertexNormalsHelper = function ( object, size, hex, linewidth ) {

	this.object = object;

	this.size = ( size !== undefined ) ? size : 1;

	var color = ( hex !== undefined ) ? hex : 0xff0000;

	var width = ( linewidth !== undefined ) ? linewidth : 1;

	//

	var nNormals = 0;

	var objGeometry = this.object.geometry;

	if ( objGeometry instanceof THREE.Geometry ) {

		nNormals = objGeometry.faces.length * 3;

	} else if ( objGeometry instanceof THREE.BufferGeometry ) {

		nNormals = objGeometry.attributes.normal.count

	}

	//

	var geometry = new THREE.BufferGeometry();

	var positions = new THREE.Float32Attribute( nNormals * 2 * 3, 3 );

	geometry.addAttribute( 'position', positions );

	THREE.LineSegments.call( this, geometry, new THREE.LineBasicMaterial( { color: color, linewidth: width } ) );

	//

	this.matrixAutoUpdate = false;

	this.update();

};

THREE.VertexNormalsHelper.prototype = Object.create( THREE.LineSegments.prototype );
THREE.VertexNormalsHelper.prototype.constructor = THREE.VertexNormalsHelper;

THREE.VertexNormalsHelper.prototype.update = ( function () {

	var v1 = new THREE.Vector3();
	var v2 = new THREE.Vector3();
	var normalMatrix = new THREE.Matrix3();

	return function update() {

		var keys = [ 'a', 'b', 'c' ];

		this.object.updateMatrixWorld( true );

		normalMatrix.getNormalMatrix( this.object.matrixWorld );

		var matrixWorld = this.object.matrixWorld;

		var position = this.geometry.attributes.position;

		//

		var objGeometry = this.object.geometry;

		if ( objGeometry instanceof THREE.Geometry ) {

			var vertices = objGeometry.vertices;

			var faces = objGeometry.faces;

			var idx = 0;

			for ( var i = 0, l = faces.length; i < l; i ++ ) {

				var face = faces[ i ];

				for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {

					var vertex = vertices[ face[ keys[ j ] ] ];

					var normal = face.vertexNormals[ j ];

					v1.copy( vertex ).applyMatrix4( matrixWorld );

					v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );

					position.setXYZ( idx, v1.x, v1.y, v1.z );

					idx = idx + 1;

					position.setXYZ( idx, v2.x, v2.y, v2.z );

					idx = idx + 1;

				}

			}

		} else if ( objGeometry instanceof THREE.BufferGeometry ) {

			var objPos = objGeometry.attributes.position;

			var objNorm = objGeometry.attributes.normal;

			var idx = 0;

			// for simplicity, ignore index and drawcalls, and render every normal

			for ( var j = 0, jl = objPos.count; j < jl; j ++ ) {

				v1.set( objPos.getX( j ), objPos.getY( j ), objPos.getZ( j ) ).applyMatrix4( matrixWorld );

				v2.set( objNorm.getX( j ), objNorm.getY( j ), objNorm.getZ( j ) );

				v2.applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );

				position.setXYZ( idx, v1.x, v1.y, v1.z );

				idx = idx + 1;

				position.setXYZ( idx, v2.x, v2.y, v2.z );

				idx = idx + 1;

			}

		}

		position.needsUpdate = true;

		return this;

	}

}() );

// File:src/extras/helpers/WireframeHelper.js

/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.WireframeHelper = function ( object, hex ) {

	var color = ( hex !== undefined ) ? hex : 0xffffff;

	THREE.LineSegments.call( this, new THREE.WireframeGeometry( object.geometry ), new THREE.LineBasicMaterial( { color: color } ) );

	this.matrix = object.matrixWorld;
	this.matrixAutoUpdate = false;

};

THREE.WireframeHelper.prototype = Object.create( THREE.LineSegments.prototype );
THREE.WireframeHelper.prototype.constructor = THREE.WireframeHelper;

// File:src/extras/objects/ImmediateRenderObject.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.ImmediateRenderObject = function ( material ) {

	THREE.Object3D.call( this );

	this.material = material;
	this.render = function ( renderCallback ) {};

};

THREE.ImmediateRenderObject.prototype = Object.create( THREE.Object3D.prototype );
THREE.ImmediateRenderObject.prototype.constructor = THREE.ImmediateRenderObject;

// File:src/extras/objects/MorphBlendMesh.js

/**
 * @author alteredq / http://alteredqualia.com/
 */

THREE.MorphBlendMesh = function( geometry, material ) {

	THREE.Mesh.call( this, geometry, material );

	this.animationsMap = {};
	this.animationsList = [];

	// prepare default animation
	// (all frames played together in 1 second)

	var numFrames = this.geometry.morphTargets.length;

	var name = "__default";

	var startFrame = 0;
	var endFrame = numFrames - 1;

	var fps = numFrames / 1;

	this.createAnimation( name, startFrame, endFrame, fps );
	this.setAnimationWeight( name, 1 );

};

THREE.MorphBlendMesh.prototype = Object.create( THREE.Mesh.prototype );
THREE.MorphBlendMesh.prototype.constructor = THREE.MorphBlendMesh;

THREE.MorphBlendMesh.prototype.createAnimation = function ( name, start, end, fps ) {

	var animation = {

		start: start,
		end: end,

		length: end - start + 1,

		fps: fps,
		duration: ( end - start ) / fps,

		lastFrame: 0,
		currentFrame: 0,

		active: false,

		time: 0,
		direction: 1,
		weight: 1,

		directionBackwards: false,
		mirroredLoop: false

	};

	this.animationsMap[ name ] = animation;
	this.animationsList.push( animation );

};

THREE.MorphBlendMesh.prototype.autoCreateAnimations = function ( fps ) {

	var pattern = /([a-z]+)_?(\d+)/i;

	var firstAnimation, frameRanges = {};

	var geometry = this.geometry;

	for ( var i = 0, il = geometry.morphTargets.length; i < il; i ++ ) {

		var morph = geometry.morphTargets[ i ];
		var chunks = morph.name.match( pattern );

		if ( chunks && chunks.length > 1 ) {

			var name = chunks[ 1 ];

			if ( ! frameRanges[ name ] ) frameRanges[ name ] = { start: Infinity, end: - Infinity };

			var range = frameRanges[ name ];

			if ( i < range.start ) range.start = i;
			if ( i > range.end ) range.end = i;

			if ( ! firstAnimation ) firstAnimation = name;

		}

	}

	for ( var name in frameRanges ) {

		var range = frameRanges[ name ];
		this.createAnimation( name, range.start, range.end, fps );

	}

	this.firstAnimation = firstAnimation;

};

THREE.MorphBlendMesh.prototype.setAnimationDirectionForward = function ( name ) {

	var animation = this.animationsMap[ name ];

	if ( animation ) {

		animation.direction = 1;
		animation.directionBackwards = false;

	}

};

THREE.MorphBlendMesh.prototype.setAnimationDirectionBackward = function ( name ) {

	var animation = this.animationsMap[ name ];

	if ( animation ) {

		animation.direction = - 1;
		animation.directionBackwards = true;

	}

};

THREE.MorphBlendMesh.prototype.setAnimationFPS = function ( name, fps ) {

	var animation = this.animationsMap[ name ];

	if ( animation ) {

		animation.fps = fps;
		animation.duration = ( animation.end - animation.start ) / animation.fps;

	}

};

THREE.MorphBlendMesh.prototype.setAnimationDuration = function ( name, duration ) {

	var animation = this.animationsMap[ name ];

	if ( animation ) {

		animation.duration = duration;
		animation.fps = ( animation.end - animation.start ) / animation.duration;

	}

};

THREE.MorphBlendMesh.prototype.setAnimationWeight = function ( name, weight ) {

	var animation = this.animationsMap[ name ];

	if ( animation ) {

		animation.weight = weight;

	}

};

THREE.MorphBlendMesh.prototype.setAnimationTime = function ( name, time ) {

	var animation = this.animationsMap[ name ];

	if ( animation ) {

		animation.time = time;

	}

};

THREE.MorphBlendMesh.prototype.getAnimationTime = function ( name ) {

	var time = 0;

	var animation = this.animationsMap[ name ];

	if ( animation ) {

		time = animation.time;

	}

	return time;

};

THREE.MorphBlendMesh.prototype.getAnimationDuration = function ( name ) {

	var duration = - 1;

	var animation = this.animationsMap[ name ];

	if ( animation ) {

		duration = animation.duration;

	}

	return duration;

};

THREE.MorphBlendMesh.prototype.playAnimation = function ( name ) {

	var animation = this.animationsMap[ name ];

	if ( animation ) {

		animation.time = 0;
		animation.active = true;

	} else {

		console.warn( "THREE.MorphBlendMesh: animation[" + name + "] undefined in .playAnimation()" );

	}

};

THREE.MorphBlendMesh.prototype.stopAnimation = function ( name ) {

	var animation = this.animationsMap[ name ];

	if ( animation ) {

		animation.active = false;

	}

};

THREE.MorphBlendMesh.prototype.update = function ( delta ) {

	for ( var i = 0, il = this.animationsList.length; i < il; i ++ ) {

		var animation = this.animationsList[ i ];

		if ( ! animation.active ) continue;

		var frameTime = animation.duration / animation.length;

		animation.time += animation.direction * delta;

		if ( animation.mirroredLoop ) {

			if ( animation.time > animation.duration || animation.time < 0 ) {

				animation.direction *= - 1;

				if ( animation.time > animation.duration ) {

					animation.time = animation.duration;
					animation.directionBackwards = true;

				}

				if ( animation.time < 0 ) {

					animation.time = 0;
					animation.directionBackwards = false;

				}

			}

		} else {

			animation.time = animation.time % animation.duration;

			if ( animation.time < 0 ) animation.time += animation.duration;

		}

		var keyframe = animation.start + THREE.Math.clamp( Math.floor( animation.time / frameTime ), 0, animation.length - 1 );
		var weight = animation.weight;

		if ( keyframe !== animation.currentFrame ) {

			this.morphTargetInfluences[ animation.lastFrame ] = 0;
			this.morphTargetInfluences[ animation.currentFrame ] = 1 * weight;

			this.morphTargetInfluences[ keyframe ] = 0;

			animation.lastFrame = animation.currentFrame;
			animation.currentFrame = keyframe;

		}

		var mix = ( animation.time % frameTime ) / frameTime;

		if ( animation.directionBackwards ) mix = 1 - mix;

		if ( animation.currentFrame !== animation.lastFrame ) {

			this.morphTargetInfluences[ animation.currentFrame ] = mix * weight;
			this.morphTargetInfluences[ animation.lastFrame ] = ( 1 - mix ) * weight;

		} else {

			this.morphTargetInfluences[ animation.currentFrame ] = weight;

		}

	}

};


},{}],36:[function(require,module,exports){
/**
 * @author dmarcos / https://github.com/dmarcos
 * @author mrdoob / http://mrdoob.com
 */

THREE.VRControls = function ( object, onError ) {

	var scope = this;

	var vrInputs = [];

	function filterInvalidDevices( devices ) {

		// Exclude Cardboard position sensor if Oculus exists.

		var oculusDevices = devices.filter( function ( device ) {

			return device.deviceName.toLowerCase().indexOf( 'oculus' ) !== - 1;

		} );

		if ( oculusDevices.length >= 1 ) {

			return devices.filter( function ( device ) {

				return device.deviceName.toLowerCase().indexOf( 'cardboard' ) === - 1;

			} );

		} else {

			return devices;

		}

	}

	function gotVRDevices( devices ) {

		devices = filterInvalidDevices( devices );

		for ( var i = 0; i < devices.length; i ++ ) {

			if ( devices[ i ] instanceof PositionSensorVRDevice ) {

				vrInputs.push( devices[ i ] );

			}

		}

		if ( onError ) onError( 'HMD not available' );

	}

	if ( navigator.getVRDevices ) {

		navigator.getVRDevices().then( gotVRDevices );

	}

	// the Rift SDK returns the position in meters
	// this scale factor allows the user to define how meters
	// are converted to scene units.

	this.scale = 1;

	this.update = function () {

		for ( var i = 0; i < vrInputs.length; i ++ ) {

			var vrInput = vrInputs[ i ];

			var state = vrInput.getState();

			if ( state.orientation !== null ) {

				object.quaternion.copy( state.orientation );

			}

			if ( state.position !== null ) {

				object.position.copy( state.position ).multiplyScalar( scope.scale );

			}

		}

	};

	this.resetSensor = function () {

		for ( var i = 0; i < vrInputs.length; i ++ ) {

			var vrInput = vrInputs[ i ];

			if ( vrInput.resetSensor !== undefined ) {

				vrInput.resetSensor();

			} else if ( vrInput.zeroSensor !== undefined ) {

				vrInput.zeroSensor();

			}

		}

	};

	this.zeroSensor = function () {

		console.warn( 'THREE.VRControls: .zeroSensor() is now .resetSensor().' );
		this.resetSensor();

	};

	this.dispose = function () {

		vrInputs = [];

	};

};

},{}],37:[function(require,module,exports){
/**
 * @author dmarcos / https://github.com/dmarcos
 * @author mrdoob / http://mrdoob.com
 *
 * WebVR Spec: http://mozvr.github.io/webvr-spec/webvr.html
 *
 * Firefox: http://mozvr.com/downloads/
 * Chromium: https://drive.google.com/folderview?id=0BzudLt22BqGRbW9WTHMtOWMzNjQ&usp=sharing#list
 *
 */

THREE.VREffect = function ( renderer, onError ) {

	var vrHMD;
	var eyeTranslationL, eyeFOVL;
	var eyeTranslationR, eyeFOVR;

	function gotVRDevices( devices ) {

		for ( var i = 0; i < devices.length; i ++ ) {

			if ( devices[ i ] instanceof HMDVRDevice ) {

				vrHMD = devices[ i ];

				break; // We keep the first we encounter

			}

		}

		if ( vrHMD === undefined ) {

			if ( onError ) onError( 'HMD not available' );

		}

	}

	if ( navigator.getVRDevices ) {

		navigator.getVRDevices().then( gotVRDevices );

	}

	//

	this.scale = 1;

	this.setSize = function( width, height ) {

		renderer.setSize( width, height );

	};

	// fullscreen

	var isFullscreen = false;

	var canvas = renderer.domElement;
	var fullscreenchange = canvas.mozRequestFullScreen ? 'mozfullscreenchange' : 'webkitfullscreenchange';

	document.addEventListener( fullscreenchange, function ( event ) {

		isFullscreen = document.mozFullScreenElement || document.webkitFullscreenElement;

	}, false );

	this.setFullScreen = function ( boolean ) {

		if ( vrHMD === undefined ) return;
		if ( isFullscreen === boolean ) return;

		if ( canvas.mozRequestFullScreen ) {

			canvas.mozRequestFullScreen( { vrDisplay: vrHMD } );

		} else if ( canvas.webkitRequestFullscreen ) {

			canvas.webkitRequestFullscreen( { vrDisplay: vrHMD } );

		}

	};

	// render

	var cameraL = new THREE.PerspectiveCamera();
	cameraL.layers.enable( 1 );

	var cameraR = new THREE.PerspectiveCamera();
	cameraR.layers.enable( 2 );

	this.render = function ( scene, camera ) {

		if ( vrHMD ) {

			var eyeParamsL = vrHMD.getEyeParameters( 'left' );
			var eyeParamsR = vrHMD.getEyeParameters( 'right' );

			eyeTranslationL = eyeParamsL.eyeTranslation;
			eyeTranslationR = eyeParamsR.eyeTranslation;
			eyeFOVL = eyeParamsL.recommendedFieldOfView;
			eyeFOVR = eyeParamsR.recommendedFieldOfView;

			if ( Array.isArray( scene ) ) {

				console.warn( 'THREE.VREffect.render() no longer supports arrays. Use object.layers instead.' );
				scene = scene[ 0 ];

			}

			var size = renderer.getSize();
			size.width /= 2;

			renderer.setScissorTest( true );
			renderer.clear();

			if ( camera.parent === null ) camera.updateMatrixWorld();

			cameraL.projectionMatrix = fovToProjection( eyeFOVL, true, camera.near, camera.far );
			cameraR.projectionMatrix = fovToProjection( eyeFOVR, true, camera.near, camera.far );

			camera.matrixWorld.decompose( cameraL.position, cameraL.quaternion, cameraL.scale );
			camera.matrixWorld.decompose( cameraR.position, cameraR.quaternion, cameraR.scale );

			cameraL.translateX( eyeTranslationL.x * this.scale );
			cameraR.translateX( eyeTranslationR.x * this.scale );

			// render left eye
			renderer.setViewport( 0, 0, size.width, size.height );
			renderer.setScissor( 0, 0, size.width, size.height );
			renderer.render( scene, cameraL );

			// render right eye
			renderer.setViewport( size.width, 0, size.width, size.height );
			renderer.setScissor( size.width, 0, size.width, size.height );
			renderer.render( scene, cameraR );

			renderer.setScissorTest( false );

			return;

		}

		// Regular render mode if not HMD

		renderer.render( scene, camera );

	};

	//

	function fovToNDCScaleOffset( fov ) {

		var pxscale = 2.0 / ( fov.leftTan + fov.rightTan );
		var pxoffset = ( fov.leftTan - fov.rightTan ) * pxscale * 0.5;
		var pyscale = 2.0 / ( fov.upTan + fov.downTan );
		var pyoffset = ( fov.upTan - fov.downTan ) * pyscale * 0.5;
		return { scale: [ pxscale, pyscale ], offset: [ pxoffset, pyoffset ] };

	}

	function fovPortToProjection( fov, rightHanded, zNear, zFar ) {

		rightHanded = rightHanded === undefined ? true : rightHanded;
		zNear = zNear === undefined ? 0.01 : zNear;
		zFar = zFar === undefined ? 10000.0 : zFar;

		var handednessScale = rightHanded ? - 1.0 : 1.0;

		// start with an identity matrix
		var mobj = new THREE.Matrix4();
		var m = mobj.elements;

		// and with scale/offset info for normalized device coords
		var scaleAndOffset = fovToNDCScaleOffset( fov );

		// X result, map clip edges to [-w,+w]
		m[ 0 * 4 + 0 ] = scaleAndOffset.scale[ 0 ];
		m[ 0 * 4 + 1 ] = 0.0;
		m[ 0 * 4 + 2 ] = scaleAndOffset.offset[ 0 ] * handednessScale;
		m[ 0 * 4 + 3 ] = 0.0;

		// Y result, map clip edges to [-w,+w]
		// Y offset is negated because this proj matrix transforms from world coords with Y=up,
		// but the NDC scaling has Y=down (thanks D3D?)
		m[ 1 * 4 + 0 ] = 0.0;
		m[ 1 * 4 + 1 ] = scaleAndOffset.scale[ 1 ];
		m[ 1 * 4 + 2 ] = - scaleAndOffset.offset[ 1 ] * handednessScale;
		m[ 1 * 4 + 3 ] = 0.0;

		// Z result (up to the app)
		m[ 2 * 4 + 0 ] = 0.0;
		m[ 2 * 4 + 1 ] = 0.0;
		m[ 2 * 4 + 2 ] = zFar / ( zNear - zFar ) * - handednessScale;
		m[ 2 * 4 + 3 ] = ( zFar * zNear ) / ( zNear - zFar );

		// W result (= Z in)
		m[ 3 * 4 + 0 ] = 0.0;
		m[ 3 * 4 + 1 ] = 0.0;
		m[ 3 * 4 + 2 ] = handednessScale;
		m[ 3 * 4 + 3 ] = 0.0;

		mobj.transpose();

		return mobj;

	}

	function fovToProjection( fov, rightHanded, zNear, zFar ) {

		var DEG2RAD = Math.PI / 180.0;

		var fovPort = {
			upTan: Math.tan( fov.upDegrees * DEG2RAD ),
			downTan: Math.tan( fov.downDegrees * DEG2RAD ),
			leftTan: Math.tan( fov.leftDegrees * DEG2RAD ),
			rightTan: Math.tan( fov.rightDegrees * DEG2RAD )
		};

		return fovPortToProjection( fovPort, rightHanded, zNear, zFar );

	}

};

},{}],38:[function(require,module,exports){
/**
* @author Tim Knip / http://www.floorplanner.com/ / tim at floorplanner.com
* @author Tony Parisi / http://www.tonyparisi.com/
*/

THREE.ColladaLoader = function () {

	var COLLADA = null;
	var scene = null;
	var visualScene;
	var kinematicsModel;

	var readyCallbackFunc = null;

	var sources = {};
	var images = {};
	var animations = {};
	var controllers = {};
	var geometries = {};
	var materials = {};
	var effects = {};
	var cameras = {};
	var lights = {};

	var animData;
	var kinematics;
	var visualScenes;
	var kinematicsModels;
	var baseUrl;
	var morphs;
	var skins;

	var flip_uv = true;
	var preferredShading = THREE.SmoothShading;

	var options = {
		// Force Geometry to always be centered at the local origin of the
		// containing Mesh.
		centerGeometry: false,

		// Axis conversion is done for geometries, animations, and controllers.
		// If we ever pull cameras or lights out of the COLLADA file, they'll
		// need extra work.
		convertUpAxis: false,

		subdivideFaces: true,

		upAxis: 'Y',

		// For reflective or refractive materials we'll use this cubemap
		defaultEnvMap: null

	};

	var colladaUnit = 1.0;
	var colladaUp = 'Y';
	var upConversion = null;

	function load ( url, readyCallback, progressCallback, failCallback ) {

		var length = 0;

		if ( document.implementation && document.implementation.createDocument ) {

			var request = new XMLHttpRequest();

			request.onreadystatechange = function() {

				if ( request.readyState === 4 ) {

					if ( request.status === 0 || request.status === 200 ) {

						if ( request.response ) {

							readyCallbackFunc = readyCallback;
							parse( request.response, undefined, url );

						} else {

							if ( failCallback ) {

								failCallback();

							} else {

								console.error( "ColladaLoader: Empty or non-existing file (" + url + ")" );

							}

						}

					}

				} else if ( request.readyState === 3 ) {

					if ( progressCallback ) {

						if ( length === 0 ) {

							length = request.getResponseHeader( "Content-Length" );

						}

						progressCallback( { total: length, loaded: request.responseText.length } );

					}

				}

			};

			request.open( "GET", url, true );
			request.send( null );

		} else {

			alert( "Don't know how to parse XML!" );

		}

	}

	function parse( text, callBack, url ) {

		COLLADA = new DOMParser().parseFromString( text, 'text/xml' );
		callBack = callBack || readyCallbackFunc;

		if ( url !== undefined ) {

			var parts = url.split( '/' );
			parts.pop();
			baseUrl = ( parts.length < 1 ? '.' : parts.join( '/' ) ) + '/';

		}

		parseAsset();
		setUpConversion();
		images = parseLib( "library_images image", _Image, "image" );
		materials = parseLib( "library_materials material", Material, "material" );
		effects = parseLib( "library_effects effect", Effect, "effect" );
		geometries = parseLib( "library_geometries geometry", Geometry, "geometry" );
		cameras = parseLib( "library_cameras camera", Camera, "camera" );
		lights = parseLib( "library_lights light", Light, "light" );
		controllers = parseLib( "library_controllers controller", Controller, "controller" );
		animations = parseLib( "library_animations animation", Animation, "animation" );
		visualScenes = parseLib( "library_visual_scenes visual_scene", VisualScene, "visual_scene" );
		kinematicsModels = parseLib( "library_kinematics_models kinematics_model", KinematicsModel, "kinematics_model" );

		morphs = [];
		skins = [];

		visualScene = parseScene();
		scene = new THREE.Group();

		for ( var i = 0; i < visualScene.nodes.length; i ++ ) {

			scene.add( createSceneGraph( visualScene.nodes[ i ] ) );

		}

		// unit conversion
		scene.scale.multiplyScalar( colladaUnit );

		createAnimations();

		kinematicsModel = parseKinematicsModel();
		createKinematics();

		var result = {

			scene: scene,
			morphs: morphs,
			skins: skins,
			animations: animData,
			kinematics: kinematics,
			dae: {
				images: images,
				materials: materials,
				cameras: cameras,
				lights: lights,
				effects: effects,
				geometries: geometries,
				controllers: controllers,
				animations: animations,
				visualScenes: visualScenes,
				visualScene: visualScene,
				scene: visualScene,
				kinematicsModels: kinematicsModels,
				kinematicsModel: kinematicsModel
			}

		};

		if ( callBack ) {

			callBack( result );

		}

		return result;

	}

	function setPreferredShading ( shading ) {

		preferredShading = shading;

	}

	function parseAsset () {

		var elements = COLLADA.querySelectorAll('asset');

		var element = elements[0];

		if ( element && element.childNodes ) {

			for ( var i = 0; i < element.childNodes.length; i ++ ) {

				var child = element.childNodes[ i ];

				switch ( child.nodeName ) {

					case 'unit':

						var meter = child.getAttribute( 'meter' );

						if ( meter ) {

							colladaUnit = parseFloat( meter );

						}

						break;

					case 'up_axis':

						colladaUp = child.textContent.charAt(0);
						break;

				}

			}

		}

	}

	function parseLib ( q, classSpec, prefix ) {

		var elements = COLLADA.querySelectorAll(q);

		var lib = {};

		var i = 0;

		var elementsLength = elements.length;

		for ( var j = 0; j < elementsLength; j ++ ) {

			var element = elements[j];
			var daeElement = ( new classSpec() ).parse( element );

			if ( !daeElement.id || daeElement.id.length === 0 ) daeElement.id = prefix + ( i ++ );
			lib[ daeElement.id ] = daeElement;

		}

		return lib;

	}

	function parseScene() {

		var sceneElement = COLLADA.querySelectorAll('scene instance_visual_scene')[0];

		if ( sceneElement ) {

			var url = sceneElement.getAttribute( 'url' ).replace( /^#/, '' );
			return visualScenes[ url.length > 0 ? url : 'visual_scene0' ];

		} else {

			return null;

		}

	}

	function parseKinematicsModel() {

		var kinematicsModelElement = COLLADA.querySelectorAll('instance_kinematics_model')[0];

		if ( kinematicsModelElement ) {

			var url = kinematicsModelElement.getAttribute( 'url' ).replace(/^#/, '');
			return kinematicsModels[ url.length > 0 ? url : 'kinematics_model0' ];

		} else {

			return null;

		}

	}

	function createAnimations() {

		animData = [];

		// fill in the keys
		recurseHierarchy( scene );

	}

	function recurseHierarchy( node ) {

		var n = visualScene.getChildById( node.colladaId, true ),
			newData = null;

		if ( n && n.keys ) {

			newData = {
				fps: 60,
				hierarchy: [ {
					node: n,
					keys: n.keys,
					sids: n.sids
				} ],
				node: node,
				name: 'animation_' + node.name,
				length: 0
			};

			animData.push(newData);

			for ( var i = 0, il = n.keys.length; i < il; i ++ ) {

				newData.length = Math.max( newData.length, n.keys[i].time );

			}

		} else {

			newData = {
				hierarchy: [ {
					keys: [],
					sids: []
				} ]
			}

		}

		for ( var i = 0, il = node.children.length; i < il; i ++ ) {

			var d = recurseHierarchy( node.children[i] );

			for ( var j = 0, jl = d.hierarchy.length; j < jl; j ++ ) {

				newData.hierarchy.push( {
					keys: [],
					sids: []
				} );

			}

		}

		return newData;

	}

	function calcAnimationBounds () {

		var start = 1000000;
		var end = -start;
		var frames = 0;
		var ID;
		for ( var id in animations ) {

			var animation = animations[ id ];
			ID = ID || animation.id;
			for ( var i = 0; i < animation.sampler.length; i ++ ) {

				var sampler = animation.sampler[ i ];

				sampler.create();

				start = Math.min( start, sampler.startTime );
				end = Math.max( end, sampler.endTime );
				frames = Math.max( frames, sampler.input.length );

			}

		}

		return { start:start, end:end, frames:frames,ID:ID };

	}

	function createMorph ( geometry, ctrl ) {

		var morphCtrl = ctrl instanceof InstanceController ? controllers[ ctrl.url ] : ctrl;

		if ( !morphCtrl || !morphCtrl.morph ) {

			console.log("could not find morph controller!");
			return;

		}

		var morph = morphCtrl.morph;

		for ( var i = 0; i < morph.targets.length; i ++ ) {

			var target_id = morph.targets[ i ];
			var daeGeometry = geometries[ target_id ];

			if ( !daeGeometry.mesh ||
				 !daeGeometry.mesh.primitives ||
				 !daeGeometry.mesh.primitives.length ) {
				 continue;
			}

			var target = daeGeometry.mesh.primitives[ 0 ].geometry;

			if ( target.vertices.length === geometry.vertices.length ) {

				geometry.morphTargets.push( { name: "target_1", vertices: target.vertices } );

			}

		}

		geometry.morphTargets.push( { name: "target_Z", vertices: geometry.vertices } );

	}

	function createSkin ( geometry, ctrl, applyBindShape ) {

		var skinCtrl = controllers[ ctrl.url ];

		if ( !skinCtrl || !skinCtrl.skin ) {

			console.log( "could not find skin controller!" );
			return;

		}

		if ( !ctrl.skeleton || !ctrl.skeleton.length ) {

			console.log( "could not find the skeleton for the skin!" );
			return;

		}

		var skin = skinCtrl.skin;
		var skeleton = visualScene.getChildById( ctrl.skeleton[ 0 ] );
		var hierarchy = [];

		applyBindShape = applyBindShape !== undefined ? applyBindShape : true;

		var bones = [];
		geometry.skinWeights = [];
		geometry.skinIndices = [];

		//createBones( geometry.bones, skin, hierarchy, skeleton, null, -1 );
		//createWeights( skin, geometry.bones, geometry.skinIndices, geometry.skinWeights );

		/*
		geometry.animation = {
			name: 'take_001',
			fps: 30,
			length: 2,
			JIT: true,
			hierarchy: hierarchy
		};
		*/

		if ( applyBindShape ) {

			for ( var i = 0; i < geometry.vertices.length; i ++ ) {

				geometry.vertices[ i ].applyMatrix4( skin.bindShapeMatrix );

			}

		}

	}

	function setupSkeleton ( node, bones, frame, parent ) {

		node.world = node.world || new THREE.Matrix4();
		node.localworld = node.localworld || new THREE.Matrix4();
		node.world.copy( node.matrix );
		node.localworld.copy( node.matrix );

		if ( node.channels && node.channels.length ) {

			var channel = node.channels[ 0 ];
			var m = channel.sampler.output[ frame ];

			if ( m instanceof THREE.Matrix4 ) {

				node.world.copy( m );
				node.localworld.copy(m);
				if (frame === 0)
					node.matrix.copy(m);
			}

		}

		if ( parent ) {

			node.world.multiplyMatrices( parent, node.world );

		}

		bones.push( node );

		for ( var i = 0; i < node.nodes.length; i ++ ) {

			setupSkeleton( node.nodes[ i ], bones, frame, node.world );

		}

	}

	function setupSkinningMatrices ( bones, skin ) {

		// FIXME: this is dumb...

		for ( var i = 0; i < bones.length; i ++ ) {

			var bone = bones[ i ];
			var found = -1;

			if ( bone.type != 'JOINT' ) continue;

			for ( var j = 0; j < skin.joints.length; j ++ ) {

				if ( bone.sid === skin.joints[ j ] ) {

					found = j;
					break;

				}

			}

			if ( found >= 0 ) {

				var inv = skin.invBindMatrices[ found ];

				bone.invBindMatrix = inv;
				bone.skinningMatrix = new THREE.Matrix4();
				bone.skinningMatrix.multiplyMatrices(bone.world, inv); // (IBMi * JMi)
				bone.animatrix = new THREE.Matrix4();

				bone.animatrix.copy(bone.localworld);
				bone.weights = [];

				for ( var j = 0; j < skin.weights.length; j ++ ) {

					for (var k = 0; k < skin.weights[ j ].length; k ++ ) {

						var w = skin.weights[ j ][ k ];

						if ( w.joint === found ) {

							bone.weights.push( w );

						}

					}

				}

			} else {

				console.warn( "ColladaLoader: Could not find joint '" + bone.sid + "'." );

				bone.skinningMatrix = new THREE.Matrix4();
				bone.weights = [];

			}
		}

	}

	//Walk the Collada tree and flatten the bones into a list, extract the position, quat and scale from the matrix
	function flattenSkeleton(skeleton) {

		var list = [];
		var walk = function(parentid, node, list) {

			var bone = {};
			bone.name = node.sid;
			bone.parent = parentid;
			bone.matrix = node.matrix;
			var data = [ new THREE.Vector3(),new THREE.Quaternion(),new THREE.Vector3() ];
			bone.matrix.decompose(data[0], data[1], data[2]);

			bone.pos = [ data[0].x,data[0].y,data[0].z ];

			bone.scl = [ data[2].x,data[2].y,data[2].z ];
			bone.rotq = [ data[1].x,data[1].y,data[1].z,data[1].w ];
			list.push(bone);

			for (var i in node.nodes) {

				walk(node.sid, node.nodes[i], list);

			}

		};

		walk(-1, skeleton, list);
		return list;

	}

	//Move the vertices into the pose that is proper for the start of the animation
	function skinToBindPose(geometry,skeleton,skinController) {

		var bones = [];
		setupSkeleton( skeleton, bones, -1 );
		setupSkinningMatrices( bones, skinController.skin );
		var v = new THREE.Vector3();
		var skinned = [];

		for (var i = 0; i < geometry.vertices.length; i ++) {

			skinned.push(new THREE.Vector3());

		}

		for ( i = 0; i < bones.length; i ++ ) {

			if ( bones[ i ].type != 'JOINT' ) continue;

			for ( var j = 0; j < bones[ i ].weights.length; j ++ ) {

				var w = bones[ i ].weights[ j ];
				var vidx = w.index;
				var weight = w.weight;

				var o = geometry.vertices[vidx];
				var s = skinned[vidx];

				v.x = o.x;
				v.y = o.y;
				v.z = o.z;

				v.applyMatrix4( bones[i].skinningMatrix );

				s.x += (v.x * weight);
				s.y += (v.y * weight);
				s.z += (v.z * weight);
			}

		}

		for (var i = 0; i < geometry.vertices.length; i ++) {

			geometry.vertices[i] = skinned[i];

		}

	}

	function applySkin ( geometry, instanceCtrl, frame ) {

		var skinController = controllers[ instanceCtrl.url ];

		frame = frame !== undefined ? frame : 40;

		if ( !skinController || !skinController.skin ) {

			console.log( 'ColladaLoader: Could not find skin controller.' );
			return;

		}

		if ( !instanceCtrl.skeleton || !instanceCtrl.skeleton.length ) {

			console.log( 'ColladaLoader: Could not find the skeleton for the skin. ' );
			return;

		}

		var animationBounds = calcAnimationBounds();
		var skeleton = visualScene.getChildById( instanceCtrl.skeleton[0], true ) || visualScene.getChildBySid( instanceCtrl.skeleton[0], true );

		//flatten the skeleton into a list of bones
		var bonelist = flattenSkeleton(skeleton);
		var joints = skinController.skin.joints;

		//sort that list so that the order reflects the order in the joint list
		var sortedbones = [];
		for (var i = 0; i < joints.length; i ++) {

			for (var j = 0; j < bonelist.length; j ++) {

				if (bonelist[j].name === joints[i]) {

					sortedbones[i] = bonelist[j];

				}

			}

		}

		//hook up the parents by index instead of name
		for (var i = 0; i < sortedbones.length; i ++) {

			for (var j = 0; j < sortedbones.length; j ++) {

				if (sortedbones[i].parent === sortedbones[j].name) {

					sortedbones[i].parent = j;

				}

			}

		}


		var i, j, w, vidx, weight;
		var v = new THREE.Vector3(), o, s;

		// move vertices to bind shape
		for ( i = 0; i < geometry.vertices.length; i ++ ) {
			geometry.vertices[i].applyMatrix4( skinController.skin.bindShapeMatrix );
		}

		var skinIndices = [];
		var skinWeights = [];
		var weights = skinController.skin.weights;

		// hook up the skin weights
		// TODO - this might be a good place to choose greatest 4 weights
		for ( var i =0; i < weights.length; i ++ ) {

			var indicies = new THREE.Vector4(weights[i][0] ? weights[i][0].joint : 0,weights[i][1] ? weights[i][1].joint : 0,weights[i][2] ? weights[i][2].joint : 0,weights[i][3] ? weights[i][3].joint : 0);
			var weight = new THREE.Vector4(weights[i][0] ? weights[i][0].weight : 0,weights[i][1] ? weights[i][1].weight : 0,weights[i][2] ? weights[i][2].weight : 0,weights[i][3] ? weights[i][3].weight : 0);

			skinIndices.push(indicies);
			skinWeights.push(weight);

		}

		geometry.skinIndices = skinIndices;
		geometry.skinWeights = skinWeights;
		geometry.bones = sortedbones;
		// process animation, or simply pose the rig if no animation

		//create an animation for the animated bones
		//NOTE: this has no effect when using morphtargets
		var animationdata = { "name":animationBounds.ID,"fps":30,"length":animationBounds.frames / 30,"hierarchy":[] };

		for (var j = 0; j < sortedbones.length; j ++) {

			animationdata.hierarchy.push({ parent:sortedbones[j].parent, name:sortedbones[j].name, keys:[] });

		}

		console.log( 'ColladaLoader:', animationBounds.ID + ' has ' + sortedbones.length + ' bones.' );



		skinToBindPose(geometry, skeleton, skinController);


		for ( frame = 0; frame < animationBounds.frames; frame ++ ) {

			var bones = [];
			var skinned = [];
			// process the frame and setup the rig with a fresh
			// transform, possibly from the bone's animation channel(s)

			setupSkeleton( skeleton, bones, frame );
			setupSkinningMatrices( bones, skinController.skin );

			for (var i = 0; i < bones.length; i ++) {

				for (var j = 0; j < animationdata.hierarchy.length; j ++) {

					if (animationdata.hierarchy[j].name === bones[i].sid) {

						var key = {};
						key.time = (frame / 30);
						key.matrix = bones[i].animatrix;

						if (frame === 0)
							bones[i].matrix = key.matrix;

						var data = [ new THREE.Vector3(),new THREE.Quaternion(),new THREE.Vector3() ];
						key.matrix.decompose(data[0], data[1], data[2]);

						key.pos = [ data[0].x,data[0].y,data[0].z ];

						key.scl = [ data[2].x,data[2].y,data[2].z ];
						key.rot = data[1];

						animationdata.hierarchy[j].keys.push(key);

					}

				}

			}

			geometry.animation = animationdata;

		}

	}

	function createKinematics() {

		if ( kinematicsModel && kinematicsModel.joints.length === 0 ) {
			kinematics = undefined;
			return;
		}

		var jointMap = {};

		var _addToMap = function( jointIndex, parentVisualElement ) {

			var parentVisualElementId = parentVisualElement.getAttribute( 'id' );
			var colladaNode = visualScene.getChildById( parentVisualElementId, true );
			var joint = kinematicsModel.joints[ jointIndex ];

			scene.traverse(function( node ) {

				if ( node.colladaId == parentVisualElementId ) {

					jointMap[ jointIndex ] = {
						node: node,
						transforms: colladaNode.transforms,
						joint: joint,
						position: joint.zeroPosition
					};

				}

			});

		};

		kinematics = {

			joints: kinematicsModel && kinematicsModel.joints,

			getJointValue: function( jointIndex ) {

				var jointData = jointMap[ jointIndex ];

				if ( jointData ) {

					return jointData.position;

				} else {

					console.log( 'getJointValue: joint ' + jointIndex + ' doesn\'t exist' );

				}

			},

			setJointValue: function( jointIndex, value ) {

				var jointData = jointMap[ jointIndex ];

				if ( jointData ) {

					var joint = jointData.joint;

					if ( value > joint.limits.max || value < joint.limits.min ) {

						console.log( 'setJointValue: joint ' + jointIndex + ' value ' + value + ' outside of limits (min: ' + joint.limits.min + ', max: ' + joint.limits.max + ')' );

					} else if ( joint.static ) {

						console.log( 'setJointValue: joint ' + jointIndex + ' is static' );

					} else {

						var threejsNode = jointData.node;
						var axis = joint.axis;
						var transforms = jointData.transforms;

						var matrix = new THREE.Matrix4();

						for (i = 0; i < transforms.length; i ++ ) {

							var transform = transforms[ i ];

							// kinda ghetto joint detection
							if ( transform.sid && transform.sid.indexOf( 'joint' + jointIndex ) !== -1 ) {

								// apply actual joint value here
								switch ( joint.type ) {

									case 'revolute':

										matrix.multiply( m1.makeRotationAxis( axis, THREE.Math.degToRad(value) ) );
										break;

									case 'prismatic':

										matrix.multiply( m1.makeTranslation(axis.x * value, axis.y * value, axis.z * value ) );
										break;

									default:

										console.warn( 'setJointValue: unknown joint type: ' + joint.type );
										break;

								}

							} else {

								var m1 = new THREE.Matrix4();

								switch ( transform.type ) {

									case 'matrix':

										matrix.multiply( transform.obj );

										break;

									case 'translate':

										matrix.multiply( m1.makeTranslation( transform.obj.x, transform.obj.y, transform.obj.z ) );

										break;

									case 'rotate':

										matrix.multiply( m1.makeRotationAxis( transform.obj, transform.angle ) );

										break;

								}
							}
						}

						// apply the matrix to the threejs node
						var elementsFloat32Arr = matrix.elements;
						var elements = Array.prototype.slice.call( elementsFloat32Arr );

						var elementsRowMajor = [
							elements[ 0 ],
							elements[ 4 ],
							elements[ 8 ],
							elements[ 12 ],
							elements[ 1 ],
							elements[ 5 ],
							elements[ 9 ],
							elements[ 13 ],
							elements[ 2 ],
							elements[ 6 ],
							elements[ 10 ],
							elements[ 14 ],
							elements[ 3 ],
							elements[ 7 ],
							elements[ 11 ],
							elements[ 15 ]
						];

						threejsNode.matrix.set.apply( threejsNode.matrix, elementsRowMajor );
						threejsNode.matrix.decompose( threejsNode.position, threejsNode.quaternion, threejsNode.scale );
					}

				} else {

					console.log( 'setJointValue: joint ' + jointIndex + ' doesn\'t exist' );

				}

			}

		};

		var element = COLLADA.querySelector('scene instance_kinematics_scene');

		if ( element ) {

			for ( var i = 0; i < element.childNodes.length; i ++ ) {

				var child = element.childNodes[ i ];

				if ( child.nodeType != 1 ) continue;

				switch ( child.nodeName ) {

					case 'bind_joint_axis':

						var visualTarget = child.getAttribute( 'target' ).split( '/' ).pop();
						var axis = child.querySelector('axis param').textContent;
						var jointIndex = parseInt( axis.split( 'joint' ).pop().split( '.' )[0] );
						var visualTargetElement = COLLADA.querySelector( '[sid="' + visualTarget + '"]' );

						if ( visualTargetElement ) {
							var parentVisualElement = visualTargetElement.parentElement;
							_addToMap(jointIndex, parentVisualElement);
						}

						break;

					default:

						break;

				}

			}
		}

	}

	function createSceneGraph ( node, parent ) {

		var obj = new THREE.Object3D();
		var skinned = false;
		var skinController;
		var morphController;
		var i, j;

		// FIXME: controllers

		for ( i = 0; i < node.controllers.length; i ++ ) {

			var controller = controllers[ node.controllers[ i ].url ];

			switch ( controller.type ) {

				case 'skin':

					if ( geometries[ controller.skin.source ] ) {

						var inst_geom = new InstanceGeometry();

						inst_geom.url = controller.skin.source;
						inst_geom.instance_material = node.controllers[ i ].instance_material;

						node.geometries.push( inst_geom );
						skinned = true;
						skinController = node.controllers[ i ];

					} else if ( controllers[ controller.skin.source ] ) {

						// urgh: controller can be chained
						// handle the most basic case...

						var second = controllers[ controller.skin.source ];
						morphController = second;
					//	skinController = node.controllers[i];

						if ( second.morph && geometries[ second.morph.source ] ) {

							var inst_geom = new InstanceGeometry();

							inst_geom.url = second.morph.source;
							inst_geom.instance_material = node.controllers[ i ].instance_material;

							node.geometries.push( inst_geom );

						}

					}

					break;

				case 'morph':

					if ( geometries[ controller.morph.source ] ) {

						var inst_geom = new InstanceGeometry();

						inst_geom.url = controller.morph.source;
						inst_geom.instance_material = node.controllers[ i ].instance_material;

						node.geometries.push( inst_geom );
						morphController = node.controllers[ i ];

					}

					console.log( 'ColladaLoader: Morph-controller partially supported.' );

				default:
					break;

			}

		}

		// geometries

		var double_sided_materials = {};

		for ( i = 0; i < node.geometries.length; i ++ ) {

			var instance_geometry = node.geometries[i];
			var instance_materials = instance_geometry.instance_material;
			var geometry = geometries[ instance_geometry.url ];
			var used_materials = {};
			var used_materials_array = [];
			var num_materials = 0;
			var first_material;

			if ( geometry ) {

				if ( !geometry.mesh || !geometry.mesh.primitives )
					continue;

				if ( obj.name.length === 0 ) {

					obj.name = geometry.id;

				}

				// collect used fx for this geometry-instance

				if ( instance_materials ) {

					for ( j = 0; j < instance_materials.length; j ++ ) {

						var instance_material = instance_materials[ j ];
						var mat = materials[ instance_material.target ];
						var effect_id = mat.instance_effect.url;
						var shader = effects[ effect_id ].shader;
						var material3js = shader.material;

						if ( geometry.doubleSided ) {

							if ( !( instance_material.symbol in double_sided_materials ) ) {

								var _copied_material = material3js.clone();
								_copied_material.side = THREE.DoubleSide;
								double_sided_materials[ instance_material.symbol ] = _copied_material;

							}

							material3js = double_sided_materials[ instance_material.symbol ];

						}

						material3js.opacity = !material3js.opacity ? 1 : material3js.opacity;
						used_materials[ instance_material.symbol ] = num_materials;
						used_materials_array.push( material3js );
						first_material = material3js;
						first_material.name = mat.name === null || mat.name === '' ? mat.id : mat.name;
						num_materials ++;

					}

				}

				var mesh;
				var material = first_material || new THREE.MeshLambertMaterial( { color: 0xdddddd, side: geometry.doubleSided ? THREE.DoubleSide : THREE.FrontSide } );
				var geom = geometry.mesh.geometry3js;

				if ( num_materials > 1 ) {

					material = new THREE.MeshFaceMaterial( used_materials_array );

				}

				if ( skinController !== undefined ) {


					applySkin( geom, skinController );

					if ( geom.morphTargets.length > 0 ) {

						material.morphTargets = true;
						material.skinning = false;

					} else {

						material.morphTargets = false;
						material.skinning = true;

					}


					mesh = new THREE.SkinnedMesh( geom, material, false );


					//mesh.skeleton = skinController.skeleton;
					//mesh.skinController = controllers[ skinController.url ];
					//mesh.skinInstanceController = skinController;
					mesh.name = 'skin_' + skins.length;



					//mesh.animationHandle.setKey(0);
					skins.push( mesh );

				} else if ( morphController !== undefined ) {

					createMorph( geom, morphController );

					material.morphTargets = true;

					mesh = new THREE.Mesh( geom, material );
					mesh.name = 'morph_' + morphs.length;

					morphs.push( mesh );

				} else {

					if ( geom.isLineStrip === true ) {

						mesh = new THREE.Line( geom );

					} else {

						mesh = new THREE.Mesh( geom, material );

					}

				}

				obj.add(mesh);

			}

		}

		for ( i = 0; i < node.cameras.length; i ++ ) {

			var instance_camera = node.cameras[i];
			var cparams = cameras[instance_camera.url];

			var cam = new THREE.PerspectiveCamera(cparams.yfov, parseFloat(cparams.aspect_ratio),
					parseFloat(cparams.znear), parseFloat(cparams.zfar));

			obj.add(cam);
		}

		for ( i = 0; i < node.lights.length; i ++ ) {

			var light = null;
			var instance_light = node.lights[i];
			var lparams = lights[instance_light.url];

			if ( lparams && lparams.technique ) {

				var color = lparams.color.getHex();
				var intensity = lparams.intensity;
				var distance = lparams.distance;
				var angle = lparams.falloff_angle;
				var exponent; // Intentionally undefined, don't know what this is yet

				switch ( lparams.technique ) {

					case 'directional':

						light = new THREE.DirectionalLight( color, intensity, distance );
						light.position.set(0, 0, 1);
						break;

					case 'point':

						light = new THREE.PointLight( color, intensity, distance );
						break;

					case 'spot':

						light = new THREE.SpotLight( color, intensity, distance, angle, exponent );
						light.position.set(0, 0, 1);
						break;

					case 'ambient':

						light = new THREE.AmbientLight( color );
						break;

				}

			}

			if (light) {
				obj.add(light);
			}
		}

		obj.name = node.name || node.id || "";
		obj.colladaId = node.id || "";
		obj.layer = node.layer || "";
		obj.matrix = node.matrix;
		obj.matrix.decompose( obj.position, obj.quaternion, obj.scale );

		if ( options.centerGeometry && obj.geometry ) {

			var delta = obj.geometry.center();
			delta.multiply( obj.scale );
			delta.applyQuaternion( obj.quaternion );

			obj.position.sub( delta );

		}

		for ( i = 0; i < node.nodes.length; i ++ ) {

			obj.add( createSceneGraph( node.nodes[i], node ) );

		}

		return obj;

	}

	function getJointId( skin, id ) {

		for ( var i = 0; i < skin.joints.length; i ++ ) {

			if ( skin.joints[ i ] === id ) {

				return i;

			}

		}

	}

	function getLibraryNode( id ) {

		var nodes = COLLADA.querySelectorAll('library_nodes node');

		for ( var i = 0; i < nodes.length; i++ ) {

			var attObj = nodes[i].attributes.getNamedItem('id');

			if ( attObj && attObj.value === id ) {

				return nodes[i];

			}

		}

		return undefined;

	}

	function getChannelsForNode ( node ) {

		var channels = [];
		var startTime = 1000000;
		var endTime = -1000000;

		for ( var id in animations ) {

			var animation = animations[id];

			for ( var i = 0; i < animation.channel.length; i ++ ) {

				var channel = animation.channel[i];
				var sampler = animation.sampler[i];
				var id = channel.target.split('/')[0];

				if ( id == node.id ) {

					sampler.create();
					channel.sampler = sampler;
					startTime = Math.min(startTime, sampler.startTime);
					endTime = Math.max(endTime, sampler.endTime);
					channels.push(channel);

				}

			}

		}

		if ( channels.length ) {

			node.startTime = startTime;
			node.endTime = endTime;

		}

		return channels;

	}

	function calcFrameDuration( node ) {

		var minT = 10000000;

		for ( var i = 0; i < node.channels.length; i ++ ) {

			var sampler = node.channels[i].sampler;

			for ( var j = 0; j < sampler.input.length - 1; j ++ ) {

				var t0 = sampler.input[ j ];
				var t1 = sampler.input[ j + 1 ];
				minT = Math.min( minT, t1 - t0 );

			}
		}

		return minT;

	}

	function calcMatrixAt( node, t ) {

		var animated = {};

		var i, j;

		for ( i = 0; i < node.channels.length; i ++ ) {

			var channel = node.channels[ i ];
			animated[ channel.sid ] = channel;

		}

		var matrix = new THREE.Matrix4();

		for ( i = 0; i < node.transforms.length; i ++ ) {

			var transform = node.transforms[ i ];
			var channel = animated[ transform.sid ];

			if ( channel !== undefined ) {

				var sampler = channel.sampler;
				var value;

				for ( j = 0; j < sampler.input.length - 1; j ++ ) {

					if ( sampler.input[ j + 1 ] > t ) {

						value = sampler.output[ j ];
						//console.log(value.flatten)
						break;

					}

				}

				if ( value !== undefined ) {

					if ( value instanceof THREE.Matrix4 ) {

						matrix.multiplyMatrices( matrix, value );

					} else {

						// FIXME: handle other types

						matrix.multiplyMatrices( matrix, transform.matrix );

					}

				} else {

					matrix.multiplyMatrices( matrix, transform.matrix );

				}

			} else {

				matrix.multiplyMatrices( matrix, transform.matrix );

			}

		}

		return matrix;

	}

	function bakeAnimations ( node ) {

		if ( node.channels && node.channels.length ) {

			var keys = [],
				sids = [];

			for ( var i = 0, il = node.channels.length; i < il; i ++ ) {

				var channel = node.channels[i],
					fullSid = channel.fullSid,
					sampler = channel.sampler,
					input = sampler.input,
					transform = node.getTransformBySid( channel.sid ),
					member;

				if ( channel.arrIndices ) {

					member = [];

					for ( var j = 0, jl = channel.arrIndices.length; j < jl; j ++ ) {

						member[ j ] = getConvertedIndex( channel.arrIndices[ j ] );

					}

				} else {

					member = getConvertedMember( channel.member );

				}

				if ( transform ) {

					if ( sids.indexOf( fullSid ) === -1 ) {

						sids.push( fullSid );

					}

					for ( var j = 0, jl = input.length; j < jl; j ++ ) {

						var time = input[j],
							data = sampler.getData( transform.type, j, member ),
							key = findKey( keys, time );

						if ( !key ) {

							key = new Key( time );
							var timeNdx = findTimeNdx( keys, time );
							keys.splice( timeNdx === -1 ? keys.length : timeNdx, 0, key );

						}

						key.addTarget( fullSid, transform, member, data );

					}

				} else {

					console.log( 'Could not find transform "' + channel.sid + '" in node ' + node.id );

				}

			}

			// post process
			for ( var i = 0; i < sids.length; i ++ ) {

				var sid = sids[ i ];

				for ( var j = 0; j < keys.length; j ++ ) {

					var key = keys[ j ];

					if ( !key.hasTarget( sid ) ) {

						interpolateKeys( keys, key, j, sid );

					}

				}

			}

			node.keys = keys;
			node.sids = sids;

		}

	}

	function findKey ( keys, time) {

		var retVal = null;

		for ( var i = 0, il = keys.length; i < il && retVal === null; i ++ ) {

			var key = keys[i];

			if ( key.time === time ) {

				retVal = key;

			} else if ( key.time > time ) {

				break;

			}

		}

		return retVal;

	}

	function findTimeNdx ( keys, time) {

		var ndx = -1;

		for ( var i = 0, il = keys.length; i < il && ndx === -1; i ++ ) {

			var key = keys[i];

			if ( key.time >= time ) {

				ndx = i;

			}

		}

		return ndx;

	}

	function interpolateKeys ( keys, key, ndx, fullSid ) {

		var prevKey = getPrevKeyWith( keys, fullSid, ndx ? ndx - 1 : 0 ),
			nextKey = getNextKeyWith( keys, fullSid, ndx + 1 );

		if ( prevKey && nextKey ) {

			var scale = (key.time - prevKey.time) / (nextKey.time - prevKey.time),
				prevTarget = prevKey.getTarget( fullSid ),
				nextData = nextKey.getTarget( fullSid ).data,
				prevData = prevTarget.data,
				data;

			if ( prevTarget.type === 'matrix' ) {

				data = prevData;

			} else if ( prevData.length ) {

				data = [];

				for ( var i = 0; i < prevData.length; ++ i ) {

					data[ i ] = prevData[ i ] + ( nextData[ i ] - prevData[ i ] ) * scale;

				}

			} else {

				data = prevData + ( nextData - prevData ) * scale;

			}

			key.addTarget( fullSid, prevTarget.transform, prevTarget.member, data );

		}

	}

	// Get next key with given sid

	function getNextKeyWith( keys, fullSid, ndx ) {

		for ( ; ndx < keys.length; ndx ++ ) {

			var key = keys[ ndx ];

			if ( key.hasTarget( fullSid ) ) {

				return key;

			}

		}

		return null;

	}

	// Get previous key with given sid

	function getPrevKeyWith( keys, fullSid, ndx ) {

		ndx = ndx >= 0 ? ndx : ndx + keys.length;

		for ( ; ndx >= 0; ndx -- ) {

			var key = keys[ ndx ];

			if ( key.hasTarget( fullSid ) ) {

				return key;

			}

		}

		return null;

	}

	function _Image() {

		this.id = "";
		this.init_from = "";

	}

	_Image.prototype.parse = function(element) {

		this.id = element.getAttribute('id');

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];

			if ( child.nodeName === 'init_from' ) {

				this.init_from = child.textContent;

			}

		}

		return this;

	};

	function Controller() {

		this.id = "";
		this.name = "";
		this.type = "";
		this.skin = null;
		this.morph = null;

	}

	Controller.prototype.parse = function( element ) {

		this.id = element.getAttribute('id');
		this.name = element.getAttribute('name');
		this.type = "none";

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];

			switch ( child.nodeName ) {

				case 'skin':

					this.skin = (new Skin()).parse(child);
					this.type = child.nodeName;
					break;

				case 'morph':

					this.morph = (new Morph()).parse(child);
					this.type = child.nodeName;
					break;

				default:
					break;

			}
		}

		return this;

	};

	function Morph() {

		this.method = null;
		this.source = null;
		this.targets = null;
		this.weights = null;

	}

	Morph.prototype.parse = function( element ) {

		var sources = {};
		var inputs = [];
		var i;

		this.method = element.getAttribute( 'method' );
		this.source = element.getAttribute( 'source' ).replace( /^#/, '' );

		for ( i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'source':

					var source = ( new Source() ).parse( child );
					sources[ source.id ] = source;
					break;

				case 'targets':

					inputs = this.parseInputs( child );
					break;

				default:

					console.log( child.nodeName );
					break;

			}

		}

		for ( i = 0; i < inputs.length; i ++ ) {

			var input = inputs[ i ];
			var source = sources[ input.source ];

			switch ( input.semantic ) {

				case 'MORPH_TARGET':

					this.targets = source.read();
					break;

				case 'MORPH_WEIGHT':

					this.weights = source.read();
					break;

				default:
					break;

			}
		}

		return this;

	};

	Morph.prototype.parseInputs = function(element) {

		var inputs = [];

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[i];
			if ( child.nodeType != 1) continue;

			switch ( child.nodeName ) {

				case 'input':

					inputs.push( (new Input()).parse(child) );
					break;

				default:
					break;
			}
		}

		return inputs;

	};

	function Skin() {

		this.source = "";
		this.bindShapeMatrix = null;
		this.invBindMatrices = [];
		this.joints = [];
		this.weights = [];

	}

	Skin.prototype.parse = function( element ) {

		var sources = {};
		var joints, weights;

		this.source = element.getAttribute( 'source' ).replace( /^#/, '' );
		this.invBindMatrices = [];
		this.joints = [];
		this.weights = [];

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[i];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'bind_shape_matrix':

					var f = _floats(child.textContent);
					this.bindShapeMatrix = getConvertedMat4( f );
					break;

				case 'source':

					var src = new Source().parse(child);
					sources[ src.id ] = src;
					break;

				case 'joints':

					joints = child;
					break;

				case 'vertex_weights':

					weights = child;
					break;

				default:

					console.log( child.nodeName );
					break;

			}
		}

		this.parseJoints( joints, sources );
		this.parseWeights( weights, sources );

		return this;

	};

	Skin.prototype.parseJoints = function ( element, sources ) {

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'input':

					var input = ( new Input() ).parse( child );
					var source = sources[ input.source ];

					if ( input.semantic === 'JOINT' ) {

						this.joints = source.read();

					} else if ( input.semantic === 'INV_BIND_MATRIX' ) {

						this.invBindMatrices = source.read();

					}

					break;

				default:
					break;
			}

		}

	};

	Skin.prototype.parseWeights = function ( element, sources ) {

		var v, vcount, inputs = [];

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'input':

					inputs.push( ( new Input() ).parse( child ) );
					break;

				case 'v':

					v = _ints( child.textContent );
					break;

				case 'vcount':

					vcount = _ints( child.textContent );
					break;

				default:
					break;

			}

		}

		var index = 0;

		for ( var i = 0; i < vcount.length; i ++ ) {

			var numBones = vcount[i];
			var vertex_weights = [];

			for ( var j = 0; j < numBones; j ++ ) {

				var influence = {};

				for ( var k = 0; k < inputs.length; k ++ ) {

					var input = inputs[ k ];
					var value = v[ index + input.offset ];

					switch ( input.semantic ) {

						case 'JOINT':

							influence.joint = value;//this.joints[value];
							break;

						case 'WEIGHT':

							influence.weight = sources[ input.source ].data[ value ];
							break;

						default:
							break;

					}

				}

				vertex_weights.push( influence );
				index += inputs.length;
			}

			for ( var j = 0; j < vertex_weights.length; j ++ ) {

				vertex_weights[ j ].index = i;

			}

			this.weights.push( vertex_weights );

		}

	};

	function VisualScene () {

		this.id = "";
		this.name = "";
		this.nodes = [];
		this.scene = new THREE.Group();

	}

	VisualScene.prototype.getChildById = function( id, recursive ) {

		for ( var i = 0; i < this.nodes.length; i ++ ) {

			var node = this.nodes[ i ].getChildById( id, recursive );

			if ( node ) {

				return node;

			}

		}

		return null;

	};

	VisualScene.prototype.getChildBySid = function( sid, recursive ) {

		for ( var i = 0; i < this.nodes.length; i ++ ) {

			var node = this.nodes[ i ].getChildBySid( sid, recursive );

			if ( node ) {

				return node;

			}

		}

		return null;

	};

	VisualScene.prototype.parse = function( element ) {

		this.id = element.getAttribute( 'id' );
		this.name = element.getAttribute( 'name' );
		this.nodes = [];

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'node':

					this.nodes.push( ( new Node() ).parse( child ) );
					break;

				default:
					break;

			}

		}

		return this;

	};

	function Node() {

		this.id = "";
		this.name = "";
		this.sid = "";
		this.nodes = [];
		this.controllers = [];
		this.transforms = [];
		this.geometries = [];
		this.channels = [];
		this.matrix = new THREE.Matrix4();

	}

	Node.prototype.getChannelForTransform = function( transformSid ) {

		for ( var i = 0; i < this.channels.length; i ++ ) {

			var channel = this.channels[i];
			var parts = channel.target.split('/');
			var id = parts.shift();
			var sid = parts.shift();
			var dotSyntax = (sid.indexOf(".") >= 0);
			var arrSyntax = (sid.indexOf("(") >= 0);
			var arrIndices;
			var member;

			if ( dotSyntax ) {

				parts = sid.split(".");
				sid = parts.shift();
				member = parts.shift();

			} else if ( arrSyntax ) {

				arrIndices = sid.split("(");
				sid = arrIndices.shift();

				for ( var j = 0; j < arrIndices.length; j ++ ) {

					arrIndices[ j ] = parseInt( arrIndices[ j ].replace( /\)/, '' ) );

				}

			}

			if ( sid === transformSid ) {

				channel.info = { sid: sid, dotSyntax: dotSyntax, arrSyntax: arrSyntax, arrIndices: arrIndices };
				return channel;

			}

		}

		return null;

	};

	Node.prototype.getChildById = function ( id, recursive ) {

		if ( this.id === id ) {

			return this;

		}

		if ( recursive ) {

			for ( var i = 0; i < this.nodes.length; i ++ ) {

				var n = this.nodes[ i ].getChildById( id, recursive );

				if ( n ) {

					return n;

				}

			}

		}

		return null;

	};

	Node.prototype.getChildBySid = function ( sid, recursive ) {

		if ( this.sid === sid ) {

			return this;

		}

		if ( recursive ) {

			for ( var i = 0; i < this.nodes.length; i ++ ) {

				var n = this.nodes[ i ].getChildBySid( sid, recursive );

				if ( n ) {

					return n;

				}

			}
		}

		return null;

	};

	Node.prototype.getTransformBySid = function ( sid ) {

		for ( var i = 0; i < this.transforms.length; i ++ ) {

			if ( this.transforms[ i ].sid === sid ) return this.transforms[ i ];

		}

		return null;

	};

	Node.prototype.parse = function( element ) {

		var url;

		this.id = element.getAttribute('id');
		this.sid = element.getAttribute('sid');
		this.name = element.getAttribute('name');
		this.type = element.getAttribute('type');
		this.layer = element.getAttribute('layer');

		this.type = this.type === 'JOINT' ? this.type : 'NODE';

		this.nodes = [];
		this.transforms = [];
		this.geometries = [];
		this.cameras = [];
		this.lights = [];
		this.controllers = [];
		this.matrix = new THREE.Matrix4();

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'node':

					this.nodes.push( ( new Node() ).parse( child ) );
					break;

				case 'instance_camera':

					this.cameras.push( ( new InstanceCamera() ).parse( child ) );
					break;

				case 'instance_controller':

					this.controllers.push( ( new InstanceController() ).parse( child ) );
					break;

				case 'instance_geometry':

					this.geometries.push( ( new InstanceGeometry() ).parse( child ) );
					break;

				case 'instance_light':

					this.lights.push( ( new InstanceLight() ).parse( child ) );
					break;

				case 'instance_node':

					url = child.getAttribute( 'url' ).replace( /^#/, '' );
					var iNode = getLibraryNode( url );

					if ( iNode ) {

						this.nodes.push( ( new Node() ).parse( iNode )) ;

					}

					break;

				case 'rotate':
				case 'translate':
				case 'scale':
				case 'matrix':
				case 'lookat':
				case 'skew':

					this.transforms.push( ( new Transform() ).parse( child ) );
					break;

				case 'extra':
					break;

				default:

					console.log( child.nodeName );
					break;

			}

		}

		this.channels = getChannelsForNode( this );
		bakeAnimations( this );

		this.updateMatrix();

		return this;

	};

	Node.prototype.updateMatrix = function () {

		this.matrix.identity();

		for ( var i = 0; i < this.transforms.length; i ++ ) {

			this.transforms[ i ].apply( this.matrix );

		}

	};

	function Transform () {

		this.sid = "";
		this.type = "";
		this.data = [];
		this.obj = null;

	}

	Transform.prototype.parse = function ( element ) {

		this.sid = element.getAttribute( 'sid' );
		this.type = element.nodeName;
		this.data = _floats( element.textContent );
		this.convert();

		return this;

	};

	Transform.prototype.convert = function () {

		switch ( this.type ) {

			case 'matrix':

				this.obj = getConvertedMat4( this.data );
				break;

			case 'rotate':

				this.angle = THREE.Math.degToRad( this.data[3] );

			case 'translate':

				fixCoords( this.data, -1 );
				this.obj = new THREE.Vector3( this.data[ 0 ], this.data[ 1 ], this.data[ 2 ] );
				break;

			case 'scale':

				fixCoords( this.data, 1 );
				this.obj = new THREE.Vector3( this.data[ 0 ], this.data[ 1 ], this.data[ 2 ] );
				break;

			default:
				console.log( 'Can not convert Transform of type ' + this.type );
				break;

		}

	};

	Transform.prototype.apply = function () {

		var m1 = new THREE.Matrix4();

		return function ( matrix ) {

			switch ( this.type ) {

				case 'matrix':

					matrix.multiply( this.obj );

					break;

				case 'translate':

					matrix.multiply( m1.makeTranslation( this.obj.x, this.obj.y, this.obj.z ) );

					break;

				case 'rotate':

					matrix.multiply( m1.makeRotationAxis( this.obj, this.angle ) );

					break;

				case 'scale':

					matrix.scale( this.obj );

					break;

			}

		};

	}();

	Transform.prototype.update = function ( data, member ) {

		var members = [ 'X', 'Y', 'Z', 'ANGLE' ];

		switch ( this.type ) {

			case 'matrix':

				if ( ! member ) {

					this.obj.copy( data );

				} else if ( member.length === 1 ) {

					switch ( member[ 0 ] ) {

						case 0:

							this.obj.n11 = data[ 0 ];
							this.obj.n21 = data[ 1 ];
							this.obj.n31 = data[ 2 ];
							this.obj.n41 = data[ 3 ];

							break;

						case 1:

							this.obj.n12 = data[ 0 ];
							this.obj.n22 = data[ 1 ];
							this.obj.n32 = data[ 2 ];
							this.obj.n42 = data[ 3 ];

							break;

						case 2:

							this.obj.n13 = data[ 0 ];
							this.obj.n23 = data[ 1 ];
							this.obj.n33 = data[ 2 ];
							this.obj.n43 = data[ 3 ];

							break;

						case 3:

							this.obj.n14 = data[ 0 ];
							this.obj.n24 = data[ 1 ];
							this.obj.n34 = data[ 2 ];
							this.obj.n44 = data[ 3 ];

							break;

					}

				} else if ( member.length === 2 ) {

					var propName = 'n' + ( member[ 0 ] + 1 ) + ( member[ 1 ] + 1 );
					this.obj[ propName ] = data;

				} else {

					console.log('Incorrect addressing of matrix in transform.');

				}

				break;

			case 'translate':
			case 'scale':

				if ( Object.prototype.toString.call( member ) === '[object Array]' ) {

					member = members[ member[ 0 ] ];

				}

				switch ( member ) {

					case 'X':

						this.obj.x = data;
						break;

					case 'Y':

						this.obj.y = data;
						break;

					case 'Z':

						this.obj.z = data;
						break;

					default:

						this.obj.x = data[ 0 ];
						this.obj.y = data[ 1 ];
						this.obj.z = data[ 2 ];
						break;

				}

				break;

			case 'rotate':

				if ( Object.prototype.toString.call( member ) === '[object Array]' ) {

					member = members[ member[ 0 ] ];

				}

				switch ( member ) {

					case 'X':

						this.obj.x = data;
						break;

					case 'Y':

						this.obj.y = data;
						break;

					case 'Z':

						this.obj.z = data;
						break;

					case 'ANGLE':

						this.angle = THREE.Math.degToRad( data );
						break;

					default:

						this.obj.x = data[ 0 ];
						this.obj.y = data[ 1 ];
						this.obj.z = data[ 2 ];
						this.angle = THREE.Math.degToRad( data[ 3 ] );
						break;

				}
				break;

		}

	};

	function InstanceController() {

		this.url = "";
		this.skeleton = [];
		this.instance_material = [];

	}

	InstanceController.prototype.parse = function ( element ) {

		this.url = element.getAttribute('url').replace(/^#/, '');
		this.skeleton = [];
		this.instance_material = [];

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType !== 1 ) continue;

			switch ( child.nodeName ) {

				case 'skeleton':

					this.skeleton.push( child.textContent.replace(/^#/, '') );
					break;

				case 'bind_material':

					var instances = child.querySelectorAll('instance_material');

					for ( var j = 0; j < instances.length; j ++ ) {

						var instance = instances[j];
						this.instance_material.push( (new InstanceMaterial()).parse(instance) );

					}


					break;

				case 'extra':
					break;

				default:
					break;

			}
		}

		return this;

	};

	function InstanceMaterial () {

		this.symbol = "";
		this.target = "";

	}

	InstanceMaterial.prototype.parse = function ( element ) {

		this.symbol = element.getAttribute('symbol');
		this.target = element.getAttribute('target').replace(/^#/, '');
		return this;

	};

	function InstanceGeometry() {

		this.url = "";
		this.instance_material = [];

	}

	InstanceGeometry.prototype.parse = function ( element ) {

		this.url = element.getAttribute('url').replace(/^#/, '');
		this.instance_material = [];

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[i];
			if ( child.nodeType != 1 ) continue;

			if ( child.nodeName === 'bind_material' ) {

				var instances = child.querySelectorAll('instance_material');

				for ( var j = 0; j < instances.length; j ++ ) {

					var instance = instances[j];
					this.instance_material.push( (new InstanceMaterial()).parse(instance) );

				}

				break;

			}

		}

		return this;

	};

	function Geometry() {

		this.id = "";
		this.mesh = null;

	}

	Geometry.prototype.parse = function ( element ) {

		this.id = element.getAttribute('id');

		extractDoubleSided( this, element );

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[i];

			switch ( child.nodeName ) {

				case 'mesh':

					this.mesh = (new Mesh(this)).parse(child);
					break;

				case 'extra':

					// console.log( child );
					break;

				default:
					break;
			}
		}

		return this;

	};

	function Mesh( geometry ) {

		this.geometry = geometry.id;
		this.primitives = [];
		this.vertices = null;
		this.geometry3js = null;

	}

	Mesh.prototype.parse = function ( element ) {

		this.primitives = [];

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];

			switch ( child.nodeName ) {

				case 'source':

					_source( child );
					break;

				case 'vertices':

					this.vertices = ( new Vertices() ).parse( child );
					break;

				case 'linestrips':

					this.primitives.push( ( new LineStrips().parse( child ) ) );
					break;

				case 'triangles':

					this.primitives.push( ( new Triangles().parse( child ) ) );
					break;

				case 'polygons':

					this.primitives.push( ( new Polygons().parse( child ) ) );
					break;

				case 'polylist':

					this.primitives.push( ( new Polylist().parse( child ) ) );
					break;

				default:
					break;

			}

		}

		this.geometry3js = new THREE.Geometry();

		if ( this.vertices === null ) {

			// TODO (mrdoob): Study case when this is null (carrier.dae)

			return this;

		}

		var vertexData = sources[ this.vertices.input['POSITION'].source ].data;

		for ( var i = 0; i < vertexData.length; i += 3 ) {

			this.geometry3js.vertices.push( getConvertedVec3( vertexData, i ).clone() );

		}

		for ( var i = 0; i < this.primitives.length; i ++ ) {

			var primitive = this.primitives[ i ];
			primitive.setVertices( this.vertices );
			this.handlePrimitive( primitive, this.geometry3js );

		}

		if ( this.geometry3js.calcNormals ) {

			this.geometry3js.computeVertexNormals();
			delete this.geometry3js.calcNormals;

		}

		return this;

	};

	Mesh.prototype.handlePrimitive = function ( primitive, geom ) {

		if ( primitive instanceof LineStrips ) {

			// TODO: Handle indices. Maybe easier with BufferGeometry?

			geom.isLineStrip = true;
			return;

		}

		var j, k, pList = primitive.p, inputs = primitive.inputs;
		var input, index, idx32;
		var source, numParams;
		var vcIndex = 0, vcount = 3, maxOffset = 0;
		var texture_sets = [];

		for ( j = 0; j < inputs.length; j ++ ) {

			input = inputs[ j ];

			var offset = input.offset + 1;
			maxOffset = (maxOffset < offset) ? offset : maxOffset;

			switch ( input.semantic ) {

				case 'TEXCOORD':
					texture_sets.push( input.set );
					break;

			}

		}

		for ( var pCount = 0; pCount < pList.length; ++ pCount ) {

			var p = pList[ pCount ], i = 0;

			while ( i < p.length ) {

				var vs = [];
				var ns = [];
				var ts = null;
				var cs = [];

				if ( primitive.vcount ) {

					vcount = primitive.vcount.length ? primitive.vcount[ vcIndex ++ ] : primitive.vcount;

				} else {

					vcount = p.length / maxOffset;

				}


				for ( j = 0; j < vcount; j ++ ) {

					for ( k = 0; k < inputs.length; k ++ ) {

						input = inputs[ k ];
						source = sources[ input.source ];

						index = p[ i + ( j * maxOffset ) + input.offset ];
						numParams = source.accessor.params.length;
						idx32 = index * numParams;

						switch ( input.semantic ) {

							case 'VERTEX':

								vs.push( index );

								break;

							case 'NORMAL':

								ns.push( getConvertedVec3( source.data, idx32 ) );

								break;

							case 'TEXCOORD':

								ts = ts || { };
								if ( ts[ input.set ] === undefined ) ts[ input.set ] = [];
								// invert the V
								ts[ input.set ].push( new THREE.Vector2( source.data[ idx32 ], source.data[ idx32 + 1 ] ) );

								break;

							case 'COLOR':

								cs.push( new THREE.Color().setRGB( source.data[ idx32 ], source.data[ idx32 + 1 ], source.data[ idx32 + 2 ] ) );

								break;

							default:

								break;

						}

					}

				}

				if ( ns.length === 0 ) {

					// check the vertices inputs
					input = this.vertices.input.NORMAL;

					if ( input ) {

						source = sources[ input.source ];
						numParams = source.accessor.params.length;

						for ( var ndx = 0, len = vs.length; ndx < len; ndx ++ ) {

							ns.push( getConvertedVec3( source.data, vs[ ndx ] * numParams ) );

						}

					} else {

						geom.calcNormals = true;

					}

				}

				if ( !ts ) {

					ts = { };
					// check the vertices inputs
					input = this.vertices.input.TEXCOORD;

					if ( input ) {

						texture_sets.push( input.set );
						source = sources[ input.source ];
						numParams = source.accessor.params.length;

						for ( var ndx = 0, len = vs.length; ndx < len; ndx ++ ) {

							idx32 = vs[ ndx ] * numParams;
							if ( ts[ input.set ] === undefined ) ts[ input.set ] = [ ];
							// invert the V
							ts[ input.set ].push( new THREE.Vector2( source.data[ idx32 ], 1.0 - source.data[ idx32 + 1 ] ) );

						}

					}

				}

				if ( cs.length === 0 ) {

					// check the vertices inputs
					input = this.vertices.input.COLOR;

					if ( input ) {

						source = sources[ input.source ];
						numParams = source.accessor.params.length;

						for ( var ndx = 0, len = vs.length; ndx < len; ndx ++ ) {

							idx32 = vs[ ndx ] * numParams;
							cs.push( new THREE.Color().setRGB( source.data[ idx32 ], source.data[ idx32 + 1 ], source.data[ idx32 + 2 ] ) );

						}

					}

				}

				var face = null, faces = [], uv, uvArr;

				if ( vcount === 3 ) {

					faces.push( new THREE.Face3( vs[0], vs[1], vs[2], ns, cs.length ? cs : new THREE.Color() ) );

				} else if ( vcount === 4 ) {

					faces.push( new THREE.Face3( vs[0], vs[1], vs[3], [ ns[0].clone(), ns[1].clone(), ns[3].clone() ], cs.length ? [ cs[0], cs[1], cs[3] ] : new THREE.Color() ) );

					faces.push( new THREE.Face3( vs[1], vs[2], vs[3], [ ns[1].clone(), ns[2].clone(), ns[3].clone() ], cs.length ? [ cs[1], cs[2], cs[3] ] : new THREE.Color() ) );

				} else if ( vcount > 4 && options.subdivideFaces ) {

					var clr = cs.length ? cs : new THREE.Color(),
						vec1, vec2, vec3, v1, v2, norm;

					// subdivide into multiple Face3s

					for ( k = 1; k < vcount - 1; ) {

						faces.push( new THREE.Face3( vs[0], vs[k], vs[k + 1], [ ns[0].clone(), ns[k ++].clone(), ns[k].clone() ], clr ) );

					}

				}

				if ( faces.length ) {

					for ( var ndx = 0, len = faces.length; ndx < len; ndx ++ ) {

						face = faces[ndx];
						face.daeMaterial = primitive.material;
						geom.faces.push( face );

						for ( k = 0; k < texture_sets.length; k ++ ) {

							uv = ts[ texture_sets[k] ];

							if ( vcount > 4 ) {

								// Grab the right UVs for the vertices in this face
								uvArr = [ uv[0], uv[ndx + 1], uv[ndx + 2] ];

							} else if ( vcount === 4 ) {

								if ( ndx === 0 ) {

									uvArr = [ uv[0], uv[1], uv[3] ];

								} else {

									uvArr = [ uv[1].clone(), uv[2], uv[3].clone() ];

								}

							} else {

								uvArr = [ uv[0], uv[1], uv[2] ];

							}

							if ( geom.faceVertexUvs[k] === undefined ) {

								geom.faceVertexUvs[k] = [];

							}

							geom.faceVertexUvs[k].push( uvArr );

						}

					}

				} else {

					console.log( 'dropped face with vcount ' + vcount + ' for geometry with id: ' + geom.id );

				}

				i += maxOffset * vcount;

			}

		}

	};

	function Polygons () {

		this.material = "";
		this.count = 0;
		this.inputs = [];
		this.vcount = null;
		this.p = [];
		this.geometry = new THREE.Geometry();

	}

	Polygons.prototype.setVertices = function ( vertices ) {

		for ( var i = 0; i < this.inputs.length; i ++ ) {

			if ( this.inputs[ i ].source === vertices.id ) {

				this.inputs[ i ].source = vertices.input[ 'POSITION' ].source;

			}

		}

	};

	Polygons.prototype.parse = function ( element ) {

		this.material = element.getAttribute( 'material' );
		this.count = _attr_as_int( element, 'count', 0 );

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];

			switch ( child.nodeName ) {

				case 'input':

					this.inputs.push( ( new Input() ).parse( element.childNodes[ i ] ) );
					break;

				case 'vcount':

					this.vcount = _ints( child.textContent );
					break;

				case 'p':

					this.p.push( _ints( child.textContent ) );
					break;

				case 'ph':

					console.warn( 'polygon holes not yet supported!' );
					break;

				default:
					break;

			}

		}

		return this;

	};

	function Polylist () {

		Polygons.call( this );

		this.vcount = [];

	}

	Polylist.prototype = Object.create( Polygons.prototype );
	Polylist.prototype.constructor = Polylist;

	function LineStrips() {

		Polygons.call( this );

		this.vcount = 1;

	}

	LineStrips.prototype = Object.create( Polygons.prototype );
	LineStrips.prototype.constructor = LineStrips;

	function Triangles () {

		Polygons.call( this );

		this.vcount = 3;

	}

	Triangles.prototype = Object.create( Polygons.prototype );
	Triangles.prototype.constructor = Triangles;

	function Accessor() {

		this.source = "";
		this.count = 0;
		this.stride = 0;
		this.params = [];

	}

	Accessor.prototype.parse = function ( element ) {

		this.params = [];
		this.source = element.getAttribute( 'source' );
		this.count = _attr_as_int( element, 'count', 0 );
		this.stride = _attr_as_int( element, 'stride', 0 );

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];

			if ( child.nodeName === 'param' ) {

				var param = {};
				param[ 'name' ] = child.getAttribute( 'name' );
				param[ 'type' ] = child.getAttribute( 'type' );
				this.params.push( param );

			}

		}

		return this;

	};

	function Vertices() {

		this.input = {};

	}

	Vertices.prototype.parse = function ( element ) {

		this.id = element.getAttribute('id');

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			if ( element.childNodes[i].nodeName === 'input' ) {

				var input = ( new Input() ).parse( element.childNodes[ i ] );
				this.input[ input.semantic ] = input;

			}

		}

		return this;

	};

	function Input () {

		this.semantic = "";
		this.offset = 0;
		this.source = "";
		this.set = 0;

	}

	Input.prototype.parse = function ( element ) {

		this.semantic = element.getAttribute('semantic');
		this.source = element.getAttribute('source').replace(/^#/, '');
		this.set = _attr_as_int(element, 'set', -1);
		this.offset = _attr_as_int(element, 'offset', 0);

		if ( this.semantic === 'TEXCOORD' && this.set < 0 ) {

			this.set = 0;

		}

		return this;

	};

	function Source ( id ) {

		this.id = id;
		this.type = null;

	}

	Source.prototype.parse = function ( element ) {

		this.id = element.getAttribute( 'id' );

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[i];

			switch ( child.nodeName ) {

				case 'bool_array':

					this.data = _bools( child.textContent );
					this.type = child.nodeName;
					break;

				case 'float_array':

					this.data = _floats( child.textContent );
					this.type = child.nodeName;
					break;

				case 'int_array':

					this.data = _ints( child.textContent );
					this.type = child.nodeName;
					break;

				case 'IDREF_array':
				case 'Name_array':

					this.data = _strings( child.textContent );
					this.type = child.nodeName;
					break;

				case 'technique_common':

					for ( var j = 0; j < child.childNodes.length; j ++ ) {

						if ( child.childNodes[ j ].nodeName === 'accessor' ) {

							this.accessor = ( new Accessor() ).parse( child.childNodes[ j ] );
							break;

						}
					}
					break;

				default:
					// console.log(child.nodeName);
					break;

			}

		}

		return this;

	};

	Source.prototype.read = function () {

		var result = [];

		//for (var i = 0; i < this.accessor.params.length; i++) {

		var param = this.accessor.params[ 0 ];

			//console.log(param.name + " " + param.type);

		switch ( param.type ) {

			case 'IDREF':
			case 'Name': case 'name':
			case 'float':

				return this.data;

			case 'float4x4':

				for ( var j = 0; j < this.data.length; j += 16 ) {

					var s = this.data.slice( j, j + 16 );
					var m = getConvertedMat4( s );
					result.push( m );
				}

				break;

			default:

				console.log( 'ColladaLoader: Source: Read dont know how to read ' + param.type + '.' );
				break;

		}

		//}

		return result;

	};

	function Material () {

		this.id = "";
		this.name = "";
		this.instance_effect = null;

	}

	Material.prototype.parse = function ( element ) {

		this.id = element.getAttribute( 'id' );
		this.name = element.getAttribute( 'name' );

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			if ( element.childNodes[ i ].nodeName === 'instance_effect' ) {

				this.instance_effect = ( new InstanceEffect() ).parse( element.childNodes[ i ] );
				break;

			}

		}

		return this;

	};

	function ColorOrTexture () {

		this.color = new THREE.Color();
		this.color.setRGB( Math.random(), Math.random(), Math.random() );
		this.color.a = 1.0;

		this.texture = null;
		this.texcoord = null;
		this.texOpts = null;

	}

	ColorOrTexture.prototype.isColor = function () {

		return ( this.texture === null );

	};

	ColorOrTexture.prototype.isTexture = function () {

		return ( this.texture != null );

	};

	ColorOrTexture.prototype.parse = function ( element ) {

		if (element.nodeName === 'transparent') {

			this.opaque = element.getAttribute('opaque');

		}

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'color':

					var rgba = _floats( child.textContent );
					this.color = new THREE.Color();
					this.color.setRGB( rgba[0], rgba[1], rgba[2] );
					this.color.a = rgba[3];
					break;

				case 'texture':

					this.texture = child.getAttribute('texture');
					this.texcoord = child.getAttribute('texcoord');
					// Defaults from:
					// https://collada.org/mediawiki/index.php/Maya_texture_placement_MAYA_extension
					this.texOpts = {
						offsetU: 0,
						offsetV: 0,
						repeatU: 1,
						repeatV: 1,
						wrapU: 1,
						wrapV: 1
					};
					this.parseTexture( child );
					break;

				default:
					break;

			}

		}

		return this;

	};

	ColorOrTexture.prototype.parseTexture = function ( element ) {

		if ( ! element.childNodes ) return this;

		// This should be supported by Maya, 3dsMax, and MotionBuilder

		if ( element.childNodes[1] && element.childNodes[1].nodeName === 'extra' ) {

			element = element.childNodes[1];

			if ( element.childNodes[1] && element.childNodes[1].nodeName === 'technique' ) {

				element = element.childNodes[1];

			}

		}

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];

			switch ( child.nodeName ) {

				case 'offsetU':
				case 'offsetV':
				case 'repeatU':
				case 'repeatV':

					this.texOpts[ child.nodeName ] = parseFloat( child.textContent );

					break;

				case 'wrapU':
				case 'wrapV':

					// some dae have a value of true which becomes NaN via parseInt

					if ( child.textContent.toUpperCase() === 'TRUE' ) {

						this.texOpts[ child.nodeName ] = 1;

					} else {

						this.texOpts[ child.nodeName ] = parseInt( child.textContent );

					}
					break;

				default:

					this.texOpts[ child.nodeName ] = child.textContent;

					break;

			}

		}

		return this;

	};

	function Shader ( type, effect ) {

		this.type = type;
		this.effect = effect;
		this.material = null;

	}

	Shader.prototype.parse = function ( element ) {

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'emission':
				case 'diffuse':
				case 'specular':
				case 'transparent':

					this[ child.nodeName ] = ( new ColorOrTexture() ).parse( child );
					break;

				case 'bump':

					// If 'bumptype' is 'heightfield', create a 'bump' property
					// Else if 'bumptype' is 'normalmap', create a 'normal' property
					// (Default to 'bump')
					var bumpType = child.getAttribute( 'bumptype' );
					if ( bumpType ) {
						if ( bumpType.toLowerCase() === "heightfield" ) {
							this[ 'bump' ] = ( new ColorOrTexture() ).parse( child );
						} else if ( bumpType.toLowerCase() === "normalmap" ) {
							this[ 'normal' ] = ( new ColorOrTexture() ).parse( child );
						} else {
							console.error( "Shader.prototype.parse: Invalid value for attribute 'bumptype' (" + bumpType + ") - valid bumptypes are 'HEIGHTFIELD' and 'NORMALMAP' - defaulting to 'HEIGHTFIELD'" );
							this[ 'bump' ] = ( new ColorOrTexture() ).parse( child );
						}
					} else {
						console.warn( "Shader.prototype.parse: Attribute 'bumptype' missing from bump node - defaulting to 'HEIGHTFIELD'" );
						this[ 'bump' ] = ( new ColorOrTexture() ).parse( child );
					}

					break;

				case 'shininess':
				case 'reflectivity':
				case 'index_of_refraction':
				case 'transparency':

					var f = child.querySelectorAll('float');

					if ( f.length > 0 )
						this[ child.nodeName ] = parseFloat( f[ 0 ].textContent );

					break;

				default:
					break;

			}

		}

		this.create();
		return this;

	};

	Shader.prototype.create = function() {

		var props = {};

		var transparent = false;

		if (this['transparency'] !== undefined && this['transparent'] !== undefined) {
			// convert transparent color RBG to average value
			var transparentColor = this['transparent'];
			var transparencyLevel = (this.transparent.color.r + this.transparent.color.g + this.transparent.color.b) / 3 * this.transparency;

			if (transparencyLevel > 0) {
				transparent = true;
				props[ 'transparent' ] = true;
				props[ 'opacity' ] = 1 - transparencyLevel;

			}

		}

		var keys = {
			'diffuse':'map',
			'ambient':'lightMap',
			'specular':'specularMap',
			'emission':'emissionMap',
			'bump':'bumpMap',
			'normal':'normalMap'
			};

		for ( var prop in this ) {

			switch ( prop ) {

				case 'ambient':
				case 'emission':
				case 'diffuse':
				case 'specular':
				case 'bump':
				case 'normal':

					var cot = this[ prop ];

					if ( cot instanceof ColorOrTexture ) {

						if ( cot.isTexture() ) {

							var samplerId = cot.texture;
							var surfaceId = this.effect.sampler[samplerId];

							if ( surfaceId !== undefined && surfaceId.source !== undefined ) {

								var surface = this.effect.surface[surfaceId.source];

								if ( surface !== undefined ) {

									var image = images[ surface.init_from ];

									if ( image ) {

										var url = baseUrl + image.init_from;

										var texture;
										var loader = THREE.Loader.Handlers.get( url );

										if ( loader !== null ) {

											texture = loader.load( url );

										} else {

											texture = new THREE.Texture();

											loadTextureImage( texture, url );

										}

										texture.wrapS = cot.texOpts.wrapU ? THREE.RepeatWrapping : THREE.ClampToEdgeWrapping;
										texture.wrapT = cot.texOpts.wrapV ? THREE.RepeatWrapping : THREE.ClampToEdgeWrapping;
										texture.offset.x = cot.texOpts.offsetU;
										texture.offset.y = cot.texOpts.offsetV;
										texture.repeat.x = cot.texOpts.repeatU;
										texture.repeat.y = cot.texOpts.repeatV;
										props[keys[prop]] = texture;

										// Texture with baked lighting?
										if (prop === 'emission') props['emissive'] = 0xffffff;

									}

								}

							}

						} else if ( prop === 'diffuse' || !transparent ) {

							if ( prop === 'emission' ) {

								props[ 'emissive' ] = cot.color.getHex();

							} else {

								props[ prop ] = cot.color.getHex();

							}

						}

					}

					break;

				case 'shininess':

					props[ prop ] = this[ prop ];
					break;

				case 'reflectivity':

					props[ prop ] = this[ prop ];
					if ( props[ prop ] > 0.0 ) props['envMap'] = options.defaultEnvMap;
					props['combine'] = THREE.MixOperation;	//mix regular shading with reflective component
					break;

				case 'index_of_refraction':

					props[ 'refractionRatio' ] = this[ prop ]; //TODO: "index_of_refraction" becomes "refractionRatio" in shader, but I'm not sure if the two are actually comparable
					if ( this[ prop ] !== 1.0 ) props['envMap'] = options.defaultEnvMap;
					break;

				case 'transparency':
					// gets figured out up top
					break;

				default:
					break;

			}

		}

		props[ 'shading' ] = preferredShading;
		props[ 'side' ] = this.effect.doubleSided ? THREE.DoubleSide : THREE.FrontSide;

		if ( props.diffuse !== undefined ) {

			props.color = props.diffuse;
			delete props.diffuse;

		}

		switch ( this.type ) {

			case 'constant':

				if (props.emissive != undefined) props.color = props.emissive;
				this.material = new THREE.MeshBasicMaterial( props );
				break;

			case 'phong':
			case 'blinn':

				this.material = new THREE.MeshPhongMaterial( props );
				break;

			case 'lambert':
			default:

				this.material = new THREE.MeshLambertMaterial( props );
				break;

		}

		return this.material;

	};

	function Surface ( effect ) {

		this.effect = effect;
		this.init_from = null;
		this.format = null;

	}

	Surface.prototype.parse = function ( element ) {

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'init_from':

					this.init_from = child.textContent;
					break;

				case 'format':

					this.format = child.textContent;
					break;

				default:

					console.log( "unhandled Surface prop: " + child.nodeName );
					break;

			}

		}

		return this;

	};

	function Sampler2D ( effect ) {

		this.effect = effect;
		this.source = null;
		this.wrap_s = null;
		this.wrap_t = null;
		this.minfilter = null;
		this.magfilter = null;
		this.mipfilter = null;

	}

	Sampler2D.prototype.parse = function ( element ) {

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'source':

					this.source = child.textContent;
					break;

				case 'minfilter':

					this.minfilter = child.textContent;
					break;

				case 'magfilter':

					this.magfilter = child.textContent;
					break;

				case 'mipfilter':

					this.mipfilter = child.textContent;
					break;

				case 'wrap_s':

					this.wrap_s = child.textContent;
					break;

				case 'wrap_t':

					this.wrap_t = child.textContent;
					break;

				default:

					console.log( "unhandled Sampler2D prop: " + child.nodeName );
					break;

			}

		}

		return this;

	};

	function Effect () {

		this.id = "";
		this.name = "";
		this.shader = null;
		this.surface = {};
		this.sampler = {};

	}

	Effect.prototype.create = function () {

		if ( this.shader === null ) {

			return null;

		}

	};

	Effect.prototype.parse = function ( element ) {

		this.id = element.getAttribute( 'id' );
		this.name = element.getAttribute( 'name' );

		extractDoubleSided( this, element );

		this.shader = null;

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'profile_COMMON':

					this.parseTechnique( this.parseProfileCOMMON( child ) );
					break;

				default:
					break;

			}

		}

		return this;

	};

	Effect.prototype.parseNewparam = function ( element ) {

		var sid = element.getAttribute( 'sid' );

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'surface':

					this.surface[sid] = ( new Surface( this ) ).parse( child );
					break;

				case 'sampler2D':

					this.sampler[sid] = ( new Sampler2D( this ) ).parse( child );
					break;

				case 'extra':

					break;

				default:

					console.log( child.nodeName );
					break;

			}

		}

	};

	Effect.prototype.parseProfileCOMMON = function ( element ) {

		var technique;

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];

			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'profile_COMMON':

					this.parseProfileCOMMON( child );
					break;

				case 'technique':

					technique = child;
					break;

				case 'newparam':

					this.parseNewparam( child );
					break;

				case 'image':

					var _image = ( new _Image() ).parse( child );
					images[ _image.id ] = _image;
					break;

				case 'extra':
					break;

				default:

					console.log( child.nodeName );
					break;

			}

		}

		return technique;

	};

	Effect.prototype.parseTechnique = function ( element ) {

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[i];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'constant':
				case 'lambert':
				case 'blinn':
				case 'phong':

					this.shader = ( new Shader( child.nodeName, this ) ).parse( child );
					break;
				case 'extra':
					this.parseExtra(child);
					break;
				default:
					break;

			}

		}

	};

	Effect.prototype.parseExtra = function ( element ) {

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[i];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'technique':
					this.parseExtraTechnique( child );
					break;
				default:
					break;

			}

		}

	};

	Effect.prototype.parseExtraTechnique = function ( element ) {

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[i];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'bump':
					this.shader.parse( element );
					break;
				default:
					break;

			}

		}

	};

	function InstanceEffect () {

		this.url = "";

	}

	InstanceEffect.prototype.parse = function ( element ) {

		this.url = element.getAttribute( 'url' ).replace( /^#/, '' );
		return this;

	};

	function Animation() {

		this.id = "";
		this.name = "";
		this.source = {};
		this.sampler = [];
		this.channel = [];

	}

	Animation.prototype.parse = function ( element ) {

		this.id = element.getAttribute( 'id' );
		this.name = element.getAttribute( 'name' );
		this.source = {};

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];

			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'animation':

					var anim = ( new Animation() ).parse( child );

					for ( var src in anim.source ) {

						this.source[ src ] = anim.source[ src ];

					}

					for ( var j = 0; j < anim.channel.length; j ++ ) {

						this.channel.push( anim.channel[ j ] );
						this.sampler.push( anim.sampler[ j ] );

					}

					break;

				case 'source':

					var src = ( new Source() ).parse( child );
					this.source[ src.id ] = src;
					break;

				case 'sampler':

					this.sampler.push( ( new Sampler( this ) ).parse( child ) );
					break;

				case 'channel':

					this.channel.push( ( new Channel( this ) ).parse( child ) );
					break;

				default:
					break;

			}

		}

		return this;

	};

	function Channel( animation ) {

		this.animation = animation;
		this.source = "";
		this.target = "";
		this.fullSid = null;
		this.sid = null;
		this.dotSyntax = null;
		this.arrSyntax = null;
		this.arrIndices = null;
		this.member = null;

	}

	Channel.prototype.parse = function ( element ) {

		this.source = element.getAttribute( 'source' ).replace( /^#/, '' );
		this.target = element.getAttribute( 'target' );

		var parts = this.target.split( '/' );

		var id = parts.shift();
		var sid = parts.shift();

		var dotSyntax = ( sid.indexOf(".") >= 0 );
		var arrSyntax = ( sid.indexOf("(") >= 0 );

		if ( dotSyntax ) {

			parts = sid.split(".");
			this.sid = parts.shift();
			this.member = parts.shift();

		} else if ( arrSyntax ) {

			var arrIndices = sid.split("(");
			this.sid = arrIndices.shift();

			for (var j = 0; j < arrIndices.length; j ++ ) {

				arrIndices[j] = parseInt( arrIndices[j].replace(/\)/, '') );

			}

			this.arrIndices = arrIndices;

		} else {

			this.sid = sid;

		}

		this.fullSid = sid;
		this.dotSyntax = dotSyntax;
		this.arrSyntax = arrSyntax;

		return this;

	};

	function Sampler ( animation ) {

		this.id = "";
		this.animation = animation;
		this.inputs = [];
		this.input = null;
		this.output = null;
		this.strideOut = null;
		this.interpolation = null;
		this.startTime = null;
		this.endTime = null;
		this.duration = 0;

	}

	Sampler.prototype.parse = function ( element ) {

		this.id = element.getAttribute( 'id' );
		this.inputs = [];

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'input':

					this.inputs.push( (new Input()).parse( child ) );
					break;

				default:
					break;

			}

		}

		return this;

	};

	Sampler.prototype.create = function () {

		for ( var i = 0; i < this.inputs.length; i ++ ) {

			var input = this.inputs[ i ];
			var source = this.animation.source[ input.source ];

			switch ( input.semantic ) {

				case 'INPUT':

					this.input = source.read();
					break;

				case 'OUTPUT':

					this.output = source.read();
					this.strideOut = source.accessor.stride;
					break;

				case 'INTERPOLATION':

					this.interpolation = source.read();
					break;

				case 'IN_TANGENT':

					break;

				case 'OUT_TANGENT':

					break;

				default:

					console.log(input.semantic);
					break;

			}

		}

		this.startTime = 0;
		this.endTime = 0;
		this.duration = 0;

		if ( this.input.length ) {

			this.startTime = 100000000;
			this.endTime = -100000000;

			for ( var i = 0; i < this.input.length; i ++ ) {

				this.startTime = Math.min( this.startTime, this.input[ i ] );
				this.endTime = Math.max( this.endTime, this.input[ i ] );

			}

			this.duration = this.endTime - this.startTime;

		}

	};

	Sampler.prototype.getData = function ( type, ndx, member ) {

		var data;

		if ( type === 'matrix' && this.strideOut === 16 ) {

			data = this.output[ ndx ];

		} else if ( this.strideOut > 1 ) {

			data = [];
			ndx *= this.strideOut;

			for ( var i = 0; i < this.strideOut; ++ i ) {

				data[ i ] = this.output[ ndx + i ];

			}

			if ( this.strideOut === 3 ) {

				switch ( type ) {

					case 'rotate':
					case 'translate':

						fixCoords( data, -1 );
						break;

					case 'scale':

						fixCoords( data, 1 );
						break;

				}

			} else if ( this.strideOut === 4 && type === 'matrix' ) {

				fixCoords( data, -1 );

			}

		} else {

			data = this.output[ ndx ];

			if ( member && type === 'translate' ) {
				data = getConvertedTranslation( member, data );
			}

		}

		return data;

	};

	function Key ( time ) {

		this.targets = [];
		this.time = time;

	}

	Key.prototype.addTarget = function ( fullSid, transform, member, data ) {

		this.targets.push( {
			sid: fullSid,
			member: member,
			transform: transform,
			data: data
		} );

	};

	Key.prototype.apply = function ( opt_sid ) {

		for ( var i = 0; i < this.targets.length; ++ i ) {

			var target = this.targets[ i ];

			if ( !opt_sid || target.sid === opt_sid ) {

				target.transform.update( target.data, target.member );

			}

		}

	};

	Key.prototype.getTarget = function ( fullSid ) {

		for ( var i = 0; i < this.targets.length; ++ i ) {

			if ( this.targets[ i ].sid === fullSid ) {

				return this.targets[ i ];

			}

		}

		return null;

	};

	Key.prototype.hasTarget = function ( fullSid ) {

		for ( var i = 0; i < this.targets.length; ++ i ) {

			if ( this.targets[ i ].sid === fullSid ) {

				return true;

			}

		}

		return false;

	};

	// TODO: Currently only doing linear interpolation. Should support full COLLADA spec.
	Key.prototype.interpolate = function ( nextKey, time ) {

		for ( var i = 0, l = this.targets.length; i < l; i ++ ) {

			var target = this.targets[ i ],
				nextTarget = nextKey.getTarget( target.sid ),
				data;

			if ( target.transform.type !== 'matrix' && nextTarget ) {

				var scale = ( time - this.time ) / ( nextKey.time - this.time ),
					nextData = nextTarget.data,
					prevData = target.data;

				if ( scale < 0 ) scale = 0;
				if ( scale > 1 ) scale = 1;

				if ( prevData.length ) {

					data = [];

					for ( var j = 0; j < prevData.length; ++ j ) {

						data[ j ] = prevData[ j ] + ( nextData[ j ] - prevData[ j ] ) * scale;

					}

				} else {

					data = prevData + ( nextData - prevData ) * scale;

				}

			} else {

				data = target.data;

			}

			target.transform.update( data, target.member );

		}

	};

	// Camera
	function Camera() {

		this.id = "";
		this.name = "";
		this.technique = "";

	}

	Camera.prototype.parse = function ( element ) {

		this.id = element.getAttribute( 'id' );
		this.name = element.getAttribute( 'name' );

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'optics':

					this.parseOptics( child );
					break;

				default:
					break;

			}

		}

		return this;

	};

	Camera.prototype.parseOptics = function ( element ) {

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			if ( element.childNodes[ i ].nodeName === 'technique_common' ) {

				var technique = element.childNodes[ i ];

				for ( var j = 0; j < technique.childNodes.length; j ++ ) {

					this.technique = technique.childNodes[ j ].nodeName;

					if ( this.technique === 'perspective' ) {

						var perspective = technique.childNodes[ j ];

						for ( var k = 0; k < perspective.childNodes.length; k ++ ) {

							var param = perspective.childNodes[ k ];

							switch ( param.nodeName ) {

								case 'yfov':
									this.yfov = param.textContent;
									break;
								case 'xfov':
									this.xfov = param.textContent;
									break;
								case 'znear':
									this.znear = param.textContent;
									break;
								case 'zfar':
									this.zfar = param.textContent;
									break;
								case 'aspect_ratio':
									this.aspect_ratio = param.textContent;
									break;

							}

						}

					} else if ( this.technique === 'orthographic' ) {

						var orthographic = technique.childNodes[ j ];

						for ( var k = 0; k < orthographic.childNodes.length; k ++ ) {

							var param = orthographic.childNodes[ k ];

							switch ( param.nodeName ) {

								case 'xmag':
									this.xmag = param.textContent;
									break;
								case 'ymag':
									this.ymag = param.textContent;
									break;
								case 'znear':
									this.znear = param.textContent;
									break;
								case 'zfar':
									this.zfar = param.textContent;
									break;
								case 'aspect_ratio':
									this.aspect_ratio = param.textContent;
									break;

							}

						}

					}

				}

			}

		}

		return this;

	};

	function InstanceCamera() {

		this.url = "";

	}

	InstanceCamera.prototype.parse = function ( element ) {

		this.url = element.getAttribute('url').replace(/^#/, '');

		return this;

	};

	// Light

	function Light() {

		this.id = "";
		this.name = "";
		this.technique = "";

	}

	Light.prototype.parse = function ( element ) {

		this.id = element.getAttribute( 'id' );
		this.name = element.getAttribute( 'name' );

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'technique_common':

					this.parseCommon( child );
					break;

				case 'technique':

					this.parseTechnique( child );
					break;

				default:
					break;

			}

		}

		return this;

	};

	Light.prototype.parseCommon = function ( element ) {

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			switch ( element.childNodes[ i ].nodeName ) {

				case 'directional':
				case 'point':
				case 'spot':
				case 'ambient':

					this.technique = element.childNodes[ i ].nodeName;

					var light = element.childNodes[ i ];

					for ( var j = 0; j < light.childNodes.length; j ++ ) {

						var child = light.childNodes[j];

						switch ( child.nodeName ) {

							case 'color':

								var rgba = _floats( child.textContent );
								this.color = new THREE.Color(0);
								this.color.setRGB( rgba[0], rgba[1], rgba[2] );
								this.color.a = rgba[3];
								break;

							case 'falloff_angle':

								this.falloff_angle = parseFloat( child.textContent );
								break;

							case 'quadratic_attenuation':
								var f = parseFloat( child.textContent );
								this.distance = f ? Math.sqrt( 1 / f ) : 0;
						}

					}

			}

		}

		return this;

	};

	Light.prototype.parseTechnique = function ( element ) {

		this.profile = element.getAttribute( 'profile' );

		for ( var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];

			switch ( child.nodeName ) {

				case 'intensity':

					this.intensity = parseFloat(child.textContent);
					break;

			}

		}

		return this;

	};

	function InstanceLight() {

		this.url = "";

	}

	InstanceLight.prototype.parse = function ( element ) {

		this.url = element.getAttribute('url').replace(/^#/, '');

		return this;

	};

	function KinematicsModel( ) {

		this.id = '';
		this.name = '';
		this.joints = [];
		this.links = [];

	}

	KinematicsModel.prototype.parse = function( element ) {

		this.id = element.getAttribute('id');
		this.name = element.getAttribute('name');
		this.joints = [];
		this.links = [];

		for (var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'technique_common':

					this.parseCommon(child);
					break;

				default:
					break;

			}

		}

		return this;

	};

	KinematicsModel.prototype.parseCommon = function( element ) {

		for (var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( element.childNodes[ i ].nodeName ) {

				case 'joint':
					this.joints.push( (new Joint()).parse(child) );
					break;

				case 'link':
					this.links.push( (new Link()).parse(child) );
					break;

				default:
					break;

			}

		}

		return this;

	};

	function Joint( ) {

		this.sid = '';
		this.name = '';
		this.axis = new THREE.Vector3();
		this.limits = {
			min: 0,
			max: 0
		};
		this.type = '';
		this.static = false;
		this.zeroPosition = 0.0;
		this.middlePosition = 0.0;

	}

	Joint.prototype.parse = function( element ) {

		this.sid = element.getAttribute('sid');
		this.name = element.getAttribute('name');
		this.axis = new THREE.Vector3();
		this.limits = {
			min: 0,
			max: 0
		};
		this.type = '';
		this.static = false;
		this.zeroPosition = 0.0;
		this.middlePosition = 0.0;

		var axisElement = element.querySelector('axis');
		var _axis = _floats(axisElement.textContent);
		this.axis = getConvertedVec3(_axis, 0);

		var min = element.querySelector('limits min') ? parseFloat(element.querySelector('limits min').textContent) : -360;
		var max = element.querySelector('limits max') ? parseFloat(element.querySelector('limits max').textContent) : 360;

		this.limits = {
			min: min,
			max: max
		};

		var jointTypes = [ 'prismatic', 'revolute' ];
		for (var i = 0; i < jointTypes.length; i ++ ) {

			var type = jointTypes[ i ];

			var jointElement = element.querySelector(type);

			if ( jointElement ) {

				this.type = type;

			}

		}

		// if the min is equal to or somehow greater than the max, consider the joint static
		if ( this.limits.min >= this.limits.max ) {

			this.static = true;

		}

		this.middlePosition = (this.limits.min + this.limits.max) / 2.0;
		return this;

	};

	function Link( ) {

		this.sid = '';
		this.name = '';
		this.transforms = [];
		this.attachments = [];

	}

	Link.prototype.parse = function( element ) {

		this.sid = element.getAttribute('sid');
		this.name = element.getAttribute('name');
		this.transforms = [];
		this.attachments = [];

		for (var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'attachment_full':
					this.attachments.push( (new Attachment()).parse(child) );
					break;

				case 'rotate':
				case 'translate':
				case 'matrix':

					this.transforms.push( (new Transform()).parse(child) );
					break;

				default:

					break;

			}

		}

		return this;

	};

	function Attachment( ) {

		this.joint = '';
		this.transforms = [];
		this.links = [];

	}

	Attachment.prototype.parse = function( element ) {

		this.joint = element.getAttribute('joint').split('/').pop();
		this.links = [];

		for (var i = 0; i < element.childNodes.length; i ++ ) {

			var child = element.childNodes[ i ];
			if ( child.nodeType != 1 ) continue;

			switch ( child.nodeName ) {

				case 'link':
					this.links.push( (new Link()).parse(child) );
					break;

				case 'rotate':
				case 'translate':
				case 'matrix':

					this.transforms.push( (new Transform()).parse(child) );
					break;

				default:

					break;

			}

		}

		return this;

	};

	function _source( element ) {

		var id = element.getAttribute( 'id' );

		if ( sources[ id ] != undefined ) {

			return sources[ id ];

		}

		sources[ id ] = ( new Source(id )).parse( element );
		return sources[ id ];

	}

	function _nsResolver( nsPrefix ) {

		if ( nsPrefix === "dae" ) {

			return "http://www.collada.org/2005/11/COLLADASchema";

		}

		return null;

	}

	function _bools( str ) {

		var raw = _strings( str );
		var data = [];

		for ( var i = 0, l = raw.length; i < l; i ++ ) {

			data.push( (raw[i] === 'true' || raw[i] === '1') ? true : false );

		}

		return data;

	}

	function _floats( str ) {

		var raw = _strings(str);
		var data = [];

		for ( var i = 0, l = raw.length; i < l; i ++ ) {

			data.push( parseFloat( raw[ i ] ) );

		}

		return data;

	}

	function _ints( str ) {

		var raw = _strings( str );
		var data = [];

		for ( var i = 0, l = raw.length; i < l; i ++ ) {

			data.push( parseInt( raw[ i ], 10 ) );

		}

		return data;

	}

	function _strings( str ) {

		return ( str.length > 0 ) ? _trimString( str ).split( /\s+/ ) : [];

	}

	function _trimString( str ) {

		return str.replace( /^\s+/, "" ).replace( /\s+$/, "" );

	}

	function _attr_as_float( element, name, defaultValue ) {

		if ( element.hasAttribute( name ) ) {

			return parseFloat( element.getAttribute( name ) );

		} else {

			return defaultValue;

		}

	}

	function _attr_as_int( element, name, defaultValue ) {

		if ( element.hasAttribute( name ) ) {

			return parseInt( element.getAttribute( name ), 10) ;

		} else {

			return defaultValue;

		}

	}

	function _attr_as_string( element, name, defaultValue ) {

		if ( element.hasAttribute( name ) ) {

			return element.getAttribute( name );

		} else {

			return defaultValue;

		}

	}

	function _format_float( f, num ) {

		if ( f === undefined ) {

			var s = '0.';

			while ( s.length < num + 2 ) {

				s += '0';

			}

			return s;

		}

		num = num || 2;

		var parts = f.toString().split( '.' );
		parts[ 1 ] = parts.length > 1 ? parts[ 1 ].substr( 0, num ) : "0";

		while ( parts[ 1 ].length < num ) {

			parts[ 1 ] += '0';

		}

		return parts.join( '.' );

	}

	function loadTextureImage ( texture, url ) {

		var loader = new THREE.ImageLoader();

		loader.load( url, function ( image ) {

			texture.image = image;
			texture.needsUpdate = true;

		} );

	}

	function extractDoubleSided( obj, element ) {

		obj.doubleSided = false;

		var node = element.querySelectorAll('extra double_sided')[0];

		if ( node ) {

			if ( node && parseInt( node.textContent, 10 ) === 1 ) {

				obj.doubleSided = true;

			}

		}

	}

	// Up axis conversion

	function setUpConversion() {

		if ( options.convertUpAxis !== true || colladaUp === options.upAxis ) {

			upConversion = null;

		} else {

			switch ( colladaUp ) {

				case 'X':

					upConversion = options.upAxis === 'Y' ? 'XtoY' : 'XtoZ';
					break;

				case 'Y':

					upConversion = options.upAxis === 'X' ? 'YtoX' : 'YtoZ';
					break;

				case 'Z':

					upConversion = options.upAxis === 'X' ? 'ZtoX' : 'ZtoY';
					break;

			}

		}

	}

	function fixCoords( data, sign ) {

		if ( options.convertUpAxis !== true || colladaUp === options.upAxis ) {

			return;

		}

		switch ( upConversion ) {

			case 'XtoY':

				var tmp = data[ 0 ];
				data[ 0 ] = sign * data[ 1 ];
				data[ 1 ] = tmp;
				break;

			case 'XtoZ':

				var tmp = data[ 2 ];
				data[ 2 ] = data[ 1 ];
				data[ 1 ] = data[ 0 ];
				data[ 0 ] = tmp;
				break;

			case 'YtoX':

				var tmp = data[ 0 ];
				data[ 0 ] = data[ 1 ];
				data[ 1 ] = sign * tmp;
				break;

			case 'YtoZ':

				var tmp = data[ 1 ];
				data[ 1 ] = sign * data[ 2 ];
				data[ 2 ] = tmp;
				break;

			case 'ZtoX':

				var tmp = data[ 0 ];
				data[ 0 ] = data[ 1 ];
				data[ 1 ] = data[ 2 ];
				data[ 2 ] = tmp;
				break;

			case 'ZtoY':

				var tmp = data[ 1 ];
				data[ 1 ] = data[ 2 ];
				data[ 2 ] = sign * tmp;
				break;

		}

	}

	function getConvertedTranslation( axis, data ) {

		if ( options.convertUpAxis !== true || colladaUp === options.upAxis ) {

			return data;

		}

		switch ( axis ) {
			case 'X':
				data = upConversion === 'XtoY' ? data * -1 : data;
				break;
			case 'Y':
				data = upConversion === 'YtoZ' || upConversion === 'YtoX' ? data * -1 : data;
				break;
			case 'Z':
				data = upConversion === 'ZtoY' ? data * -1 : data ;
				break;
			default:
				break;
		}

		return data;
	}

	function getConvertedVec3( data, offset ) {

		var arr = [ data[ offset ], data[ offset + 1 ], data[ offset + 2 ] ];
		fixCoords( arr, -1 );
		return new THREE.Vector3( arr[ 0 ], arr[ 1 ], arr[ 2 ] );

	}

	function getConvertedMat4( data ) {

		if ( options.convertUpAxis ) {

			// First fix rotation and scale

			// Columns first
			var arr = [ data[ 0 ], data[ 4 ], data[ 8 ] ];
			fixCoords( arr, -1 );
			data[ 0 ] = arr[ 0 ];
			data[ 4 ] = arr[ 1 ];
			data[ 8 ] = arr[ 2 ];
			arr = [ data[ 1 ], data[ 5 ], data[ 9 ] ];
			fixCoords( arr, -1 );
			data[ 1 ] = arr[ 0 ];
			data[ 5 ] = arr[ 1 ];
			data[ 9 ] = arr[ 2 ];
			arr = [ data[ 2 ], data[ 6 ], data[ 10 ] ];
			fixCoords( arr, -1 );
			data[ 2 ] = arr[ 0 ];
			data[ 6 ] = arr[ 1 ];
			data[ 10 ] = arr[ 2 ];
			// Rows second
			arr = [ data[ 0 ], data[ 1 ], data[ 2 ] ];
			fixCoords( arr, -1 );
			data[ 0 ] = arr[ 0 ];
			data[ 1 ] = arr[ 1 ];
			data[ 2 ] = arr[ 2 ];
			arr = [ data[ 4 ], data[ 5 ], data[ 6 ] ];
			fixCoords( arr, -1 );
			data[ 4 ] = arr[ 0 ];
			data[ 5 ] = arr[ 1 ];
			data[ 6 ] = arr[ 2 ];
			arr = [ data[ 8 ], data[ 9 ], data[ 10 ] ];
			fixCoords( arr, -1 );
			data[ 8 ] = arr[ 0 ];
			data[ 9 ] = arr[ 1 ];
			data[ 10 ] = arr[ 2 ];

			// Now fix translation
			arr = [ data[ 3 ], data[ 7 ], data[ 11 ] ];
			fixCoords( arr, -1 );
			data[ 3 ] = arr[ 0 ];
			data[ 7 ] = arr[ 1 ];
			data[ 11 ] = arr[ 2 ];

		}

		return new THREE.Matrix4().set(
			data[0], data[1], data[2], data[3],
			data[4], data[5], data[6], data[7],
			data[8], data[9], data[10], data[11],
			data[12], data[13], data[14], data[15]
			);

	}

	function getConvertedIndex( index ) {

		if ( index > -1 && index < 3 ) {

			var members = [ 'X', 'Y', 'Z' ],
				indices = { X: 0, Y: 1, Z: 2 };

			index = getConvertedMember( members[ index ] );
			index = indices[ index ];

		}

		return index;

	}

	function getConvertedMember( member ) {

		if ( options.convertUpAxis ) {

			switch ( member ) {

				case 'X':

					switch ( upConversion ) {

						case 'XtoY':
						case 'XtoZ':
						case 'YtoX':

							member = 'Y';
							break;

						case 'ZtoX':

							member = 'Z';
							break;

					}

					break;

				case 'Y':

					switch ( upConversion ) {

						case 'XtoY':
						case 'YtoX':
						case 'ZtoX':

							member = 'X';
							break;

						case 'XtoZ':
						case 'YtoZ':
						case 'ZtoY':

							member = 'Z';
							break;

					}

					break;

				case 'Z':

					switch ( upConversion ) {

						case 'XtoZ':

							member = 'X';
							break;

						case 'YtoZ':
						case 'ZtoX':
						case 'ZtoY':

							member = 'Y';
							break;

					}

					break;

			}

		}

		return member;

	}

	return {

		load: load,
		parse: parse,
		setPreferredShading: setPreferredShading,
		applySkin: applySkin,
		geometries : geometries,
		options: options

	};

};

},{}],39:[function(require,module,exports){
/**
 * @author mrdoob / http://mrdoob.com/
 */

THREE.OBJLoader = function ( manager ) {

	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;

	this.materials = null;

};

THREE.OBJLoader.prototype = {

	constructor: THREE.OBJLoader,

	load: function ( url, onLoad, onProgress, onError ) {

		var scope = this;

		var loader = new THREE.XHRLoader( scope.manager );
		loader.setPath( this.path );
		loader.load( url, function ( text ) {

			onLoad( scope.parse( text ) );

		}, onProgress, onError );

	},

	setPath: function ( value ) {

		this.path = value;

	},

	setMaterials: function ( materials ) {

		this.materials = materials;

	},

	parse: function ( text ) {

		console.time( 'OBJLoader' );

		var objects = [];
		var object;
		var foundObjects = false;
		var vertices = [];
		var normals = [];
		var uvs = [];

		function addObject(name) {

			var geometry = {
				vertices: [],
				normals: [],
				uvs: []
			};

			var material = {
				name: '',
				smooth: true
			};

			object = {
				name: name,
				geometry: geometry,
				material: material
			};

			objects.push( object );

		}

		function parseVertexIndex( value ) {

			var index = parseInt( value );

			return ( index >= 0 ? index - 1 : index + vertices.length / 3 ) * 3;

		}

		function parseNormalIndex( value ) {

			var index = parseInt( value );

			return ( index >= 0 ? index - 1 : index + normals.length / 3 ) * 3;

		}

		function parseUVIndex( value ) {

			var index = parseInt( value );

			return ( index >= 0 ? index - 1 : index + uvs.length / 2 ) * 2;

		}

		function addVertex( a, b, c ) {

			object.geometry.vertices.push(
				vertices[ a ], vertices[ a + 1 ], vertices[ a + 2 ],
				vertices[ b ], vertices[ b + 1 ], vertices[ b + 2 ],
				vertices[ c ], vertices[ c + 1 ], vertices[ c + 2 ]
			);

		}

		function addNormal( a, b, c ) {

			object.geometry.normals.push(
				normals[ a ], normals[ a + 1 ], normals[ a + 2 ],
				normals[ b ], normals[ b + 1 ], normals[ b + 2 ],
				normals[ c ], normals[ c + 1 ], normals[ c + 2 ]
			);

		}

		function addUV( a, b, c ) {

			object.geometry.uvs.push(
				uvs[ a ], uvs[ a + 1 ],
				uvs[ b ], uvs[ b + 1 ],
				uvs[ c ], uvs[ c + 1 ]
			);

		}

		function addFace( a, b, c, d,  ua, ub, uc, ud, na, nb, nc, nd ) {

			var ia = parseVertexIndex( a );
			var ib = parseVertexIndex( b );
			var ic = parseVertexIndex( c );
			var id;

			if ( d === undefined ) {

				addVertex( ia, ib, ic );

			} else {

				id = parseVertexIndex( d );

				addVertex( ia, ib, id );
				addVertex( ib, ic, id );

			}

			if ( ua !== undefined ) {

				ia = parseUVIndex( ua );
				ib = parseUVIndex( ub );
				ic = parseUVIndex( uc );

				if ( d === undefined ) {

					addUV( ia, ib, ic );

				} else {

					id = parseUVIndex( ud );

					addUV( ia, ib, id );
					addUV( ib, ic, id );

				}

			}

			if ( na !== undefined ) {

				ia = parseNormalIndex( na );
				ib = parseNormalIndex( nb );
				ic = parseNormalIndex( nc );

				if ( d === undefined ) {

					addNormal( ia, ib, ic );

				} else {

					id = parseNormalIndex( nd );

					addNormal( ia, ib, id );
					addNormal( ib, ic, id );

				}

			}

		}

		addObject("");

		// v float float float
		var vertex_pattern = /^v\s+([\d|\.|\+|\-|e|E]+)\s+([\d|\.|\+|\-|e|E]+)\s+([\d|\.|\+|\-|e|E]+)/;

		// vn float float float
		var normal_pattern = /^vn\s+([\d|\.|\+|\-|e|E]+)\s+([\d|\.|\+|\-|e|E]+)\s+([\d|\.|\+|\-|e|E]+)/;

		// vt float float
		var uv_pattern = /^vt\s+([\d|\.|\+|\-|e|E]+)\s+([\d|\.|\+|\-|e|E]+)/;

		// f vertex vertex vertex ...
		var face_pattern1 = /^f\s+(-?\d+)\s+(-?\d+)\s+(-?\d+)(?:\s+(-?\d+))?/;

		// f vertex/uv vertex/uv vertex/uv ...
		var face_pattern2 = /^f\s+((-?\d+)\/(-?\d+))\s+((-?\d+)\/(-?\d+))\s+((-?\d+)\/(-?\d+))(?:\s+((-?\d+)\/(-?\d+)))?/;

		// f vertex/uv/normal vertex/uv/normal vertex/uv/normal ...
		var face_pattern3 = /^f\s+((-?\d+)\/(-?\d+)\/(-?\d+))\s+((-?\d+)\/(-?\d+)\/(-?\d+))\s+((-?\d+)\/(-?\d+)\/(-?\d+))(?:\s+((-?\d+)\/(-?\d+)\/(-?\d+)))?/;

		// f vertex//normal vertex//normal vertex//normal ...
		var face_pattern4 = /^f\s+((-?\d+)\/\/(-?\d+))\s+((-?\d+)\/\/(-?\d+))\s+((-?\d+)\/\/(-?\d+))(?:\s+((-?\d+)\/\/(-?\d+)))?/;

		var object_pattern = /^[og]\s+(.+)/;

		var smoothing_pattern = /^s\s+([01]|on|off)/;

		//

		var lines = text.split( '\n' );

		for ( var i = 0; i < lines.length; i ++ ) {

			var line = lines[ i ];
			line = line.trim();

			var result;

			if ( line.length === 0 || line.charAt( 0 ) === '#' ) {

				continue;

			} else if ( ( result = vertex_pattern.exec( line ) ) !== null ) {

				// ["v 1.0 2.0 3.0", "1.0", "2.0", "3.0"]

				vertices.push(
					parseFloat( result[ 1 ] ),
					parseFloat( result[ 2 ] ),
					parseFloat( result[ 3 ] )
				);

			} else if ( ( result = normal_pattern.exec( line ) ) !== null ) {

				// ["vn 1.0 2.0 3.0", "1.0", "2.0", "3.0"]

				normals.push(
					parseFloat( result[ 1 ] ),
					parseFloat( result[ 2 ] ),
					parseFloat( result[ 3 ] )
				);

			} else if ( ( result = uv_pattern.exec( line ) ) !== null ) {

				// ["vt 0.1 0.2", "0.1", "0.2"]

				uvs.push(
					parseFloat( result[ 1 ] ),
					parseFloat( result[ 2 ] )
				);

			} else if ( ( result = face_pattern1.exec( line ) ) !== null ) {

				// ["f 1 2 3", "1", "2", "3", undefined]

				addFace(
					result[ 1 ], result[ 2 ], result[ 3 ], result[ 4 ]
				);

			} else if ( ( result = face_pattern2.exec( line ) ) !== null ) {

				// ["f 1/1 2/2 3/3", " 1/1", "1", "1", " 2/2", "2", "2", " 3/3", "3", "3", undefined, undefined, undefined]

				addFace(
					result[ 2 ], result[ 5 ], result[ 8 ], result[ 11 ],
					result[ 3 ], result[ 6 ], result[ 9 ], result[ 12 ]
				);

			} else if ( ( result = face_pattern3.exec( line ) ) !== null ) {

				// ["f 1/1/1 2/2/2 3/3/3", " 1/1/1", "1", "1", "1", " 2/2/2", "2", "2", "2", " 3/3/3", "3", "3", "3", undefined, undefined, undefined, undefined]

				addFace(
					result[ 2 ], result[ 6 ], result[ 10 ], result[ 14 ],
					result[ 3 ], result[ 7 ], result[ 11 ], result[ 15 ],
					result[ 4 ], result[ 8 ], result[ 12 ], result[ 16 ]
				);

			} else if ( ( result = face_pattern4.exec( line ) ) !== null ) {

				// ["f 1//1 2//2 3//3", " 1//1", "1", "1", " 2//2", "2", "2", " 3//3", "3", "3", undefined, undefined, undefined]

				addFace(
					result[ 2 ], result[ 5 ], result[ 8 ], result[ 11 ],
					undefined, undefined, undefined, undefined,
					result[ 3 ], result[ 6 ], result[ 9 ], result[ 12 ]
				);

			} else if ( ( result = object_pattern.exec( line ) ) !== null ) {

				// o object_name
				// or
				// g group_name

				var name = result[1].trim();

				if ( foundObjects === false ) {

					foundObjects = true;
					object.name = name;

				} else {

					addObject(name);

				}

			} else if ( /^usemtl /.test( line ) ) {

				// material

				object.material.name = line.substring( 7 ).trim();

			} else if ( /^mtllib /.test( line ) ) {

				// mtl file

			} else if ( ( result = smoothing_pattern.exec( line ) ) !== null ) {

				// smooth shading

				object.material.smooth = result[ 1 ] === "1" || result[ 1 ] === "on";

			} else {

				// console.log( "THREE.OBJLoader: Unhandled line " + line );

			}

		}

		var container = new THREE.Group();

		for ( var i = 0, l = objects.length; i < l; i ++ ) {

			object = objects[ i ];
			var geometry = object.geometry;

			var buffergeometry = new THREE.BufferGeometry();

			buffergeometry.addAttribute( 'position', new THREE.BufferAttribute( new Float32Array( geometry.vertices ), 3 ) );

			if ( geometry.normals.length > 0 ) {

				buffergeometry.addAttribute( 'normal', new THREE.BufferAttribute( new Float32Array( geometry.normals ), 3 ) );

			} else {

				buffergeometry.computeVertexNormals();

			}

			if ( geometry.uvs.length > 0 ) {

				buffergeometry.addAttribute( 'uv', new THREE.BufferAttribute( new Float32Array( geometry.uvs ), 2 ) );

			}

			var material;

			if ( this.materials !== null ) {

				material = this.materials.create( object.material.name );

			}

			if ( !material ) {

				material = new THREE.MeshPhongMaterial();
				material.name = object.material.name;

			}

			material.shading = object.material.smooth ? THREE.SmoothShading : THREE.FlatShading;

			var mesh = new THREE.Mesh( buffergeometry, material );
			mesh.name = object.name;

			container.add( mesh );

		}

		console.timeEnd( 'OBJLoader' );

		return container;

	}

};

},{}],40:[function(require,module,exports){
(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * The base class for all VR devices.
 */
function VRDevice() {
  this.hardwareUnitId = 'webvr-polyfill hardwareUnitId';
  this.deviceId = 'webvr-polyfill deviceId';
  this.deviceName = 'webvr-polyfill deviceName';
}

/**
 * The base class for all VR HMD devices.
 */
function HMDVRDevice() {
}
HMDVRDevice.prototype = new VRDevice();

/**
 * The base class for all VR position sensor devices.
 */
function PositionSensorVRDevice() {
}
PositionSensorVRDevice.prototype = new VRDevice();

module.exports.VRDevice = VRDevice;
module.exports.HMDVRDevice = HMDVRDevice;
module.exports.PositionSensorVRDevice = PositionSensorVRDevice;

},{}],2:[function(_dereq_,module,exports){
/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var HMDVRDevice = _dereq_('./base.js').HMDVRDevice;

// Constants from vrtoolkit: https://github.com/googlesamples/cardboard-java.
var INTERPUPILLARY_DISTANCE = 0.06;
var DEFAULT_MAX_FOV_LEFT_RIGHT = 40;
var DEFAULT_MAX_FOV_BOTTOM = 40;
var DEFAULT_MAX_FOV_TOP = 40;

/**
 * The HMD itself, providing rendering parameters.
 */
function CardboardHMDVRDevice() {
  // From com/google/vrtoolkit/cardboard/FieldOfView.java.
  this.fov = {
    upDegrees: DEFAULT_MAX_FOV_TOP,
    downDegrees: DEFAULT_MAX_FOV_BOTTOM,
    leftDegrees: DEFAULT_MAX_FOV_LEFT_RIGHT,
    rightDegrees: DEFAULT_MAX_FOV_LEFT_RIGHT
  };
  // Set display constants.
  this.eyeTranslationLeft = {
    x: INTERPUPILLARY_DISTANCE * -0.5,
    y: 0,
    z: 0
  };
  this.eyeTranslationRight = {
    x: INTERPUPILLARY_DISTANCE * 0.5,
    y: 0,
    z: 0
  };
}
CardboardHMDVRDevice.prototype = new HMDVRDevice();

CardboardHMDVRDevice.prototype.getEyeParameters = function(whichEye) {
  var eyeTranslation;
  if (whichEye == 'left') {
    eyeTranslation = this.eyeTranslationLeft;
  } else if (whichEye == 'right') {
    eyeTranslation = this.eyeTranslationRight;
  } else {
    console.error('Invalid eye provided: %s', whichEye);
    return null;
  }
  return {
    recommendedFieldOfView: this.fov,
    eyeTranslation: eyeTranslation
  };
};

module.exports = CardboardHMDVRDevice;

},{"./base.js":1}],3:[function(_dereq_,module,exports){
/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * TODO: Fix up all "new THREE" instantiations to improve performance.
 */
var SensorSample = _dereq_('./sensor-sample.js');
var THREE = _dereq_('./three-math.js');
var Util = _dereq_('./util.js');

var DEBUG = false;

/**
 * An implementation of a simple complementary filter, which fuses gyroscope and
 * accelerometer data from the 'devicemotion' event.
 *
 * Accelerometer data is very noisy, but stable over the long term.
 * Gyroscope data is smooth, but tends to drift over the long term.
 *
 * This fusion is relatively simple:
 * 1. Get orientation estimates from accelerometer by applying a low-pass filter
 *    on that data.
 * 2. Get orientation estimates from gyroscope by integrating over time.
 * 3. Combine the two estimates, weighing (1) in the long term, but (2) for the
 *    short term.
 */
function ComplementaryFilter(kFilter) {
  this.kFilter = kFilter;

  // Raw sensor measurements.
  this.currentAccelMeasurement = new SensorSample();
  this.currentGyroMeasurement = new SensorSample();
  this.previousGyroMeasurement = new SensorSample();

  // Current filter orientation
  this.filterQ = new THREE.Quaternion();
  this.previousFilterQ = new THREE.Quaternion();

  // Orientation based on the accelerometer.
  this.accelQ = new THREE.Quaternion();
  // Whether or not the orientation has been initialized.
  this.isOrientationInitialized = false;
  // Running estimate of gravity based on the current orientation.
  this.estimatedGravity = new THREE.Vector3();
  // Measured gravity based on accelerometer.
  this.measuredGravity = new THREE.Vector3();

  // Debug only quaternion of gyro-based orientation.
  this.gyroIntegralQ = new THREE.Quaternion();
}

ComplementaryFilter.prototype.addAccelMeasurement = function(vector, timestampS) {
  this.currentAccelMeasurement.set(vector, timestampS);
};

ComplementaryFilter.prototype.addGyroMeasurement = function(vector, timestampS) {
  this.currentGyroMeasurement.set(vector, timestampS);

  var deltaT = timestampS - this.previousGyroMeasurement.timestampS;
  if (Util.isTimestampDeltaValid(deltaT)) {
    this.run_();
  }
  
  this.previousGyroMeasurement.copy(this.currentGyroMeasurement);
};

ComplementaryFilter.prototype.run_ = function() {

  if (!this.isOrientationInitialized) {
    this.accelQ = this.accelToQuaternion_(this.currentAccelMeasurement.sample);
    this.previousFilterQ.copy(this.accelQ);
    this.isOrientationInitialized = true;
    return;
  }

  var deltaT = this.currentGyroMeasurement.timestampS -
      this.previousGyroMeasurement.timestampS;

  // Convert gyro rotation vector to a quaternion delta.
  var gyroDeltaQ = this.gyroToQuaternionDelta_(this.currentGyroMeasurement.sample, deltaT);
  this.gyroIntegralQ.multiply(gyroDeltaQ);

  // filter_1 = K * (filter_0 + gyro * dT) + (1 - K) * accel.
  this.filterQ.copy(this.previousFilterQ);
  this.filterQ.multiply(gyroDeltaQ);

  // Calculate the delta between the current estimated gravity and the real
  // gravity vector from accelerometer.
  var invFilterQ = new THREE.Quaternion();
  invFilterQ.copy(this.filterQ);
  invFilterQ.inverse();

  this.estimatedGravity.set(0, 0, -1);
  this.estimatedGravity.applyQuaternion(invFilterQ);
  this.estimatedGravity.normalize();

  this.measuredGravity.copy(this.currentAccelMeasurement.sample);
  this.measuredGravity.normalize();

  // Compare estimated gravity with measured gravity, get the delta quaternion
  // between the two.
  var deltaQ = new THREE.Quaternion();
  deltaQ.setFromUnitVectors(this.estimatedGravity, this.measuredGravity);
  deltaQ.inverse();

  if (DEBUG) {
    console.log('Delta: %d deg, G_est: (%s, %s, %s), G_meas: (%s, %s, %s)',
                THREE.Math.radToDeg(Util.getQuaternionAngle(deltaQ)),
                (this.estimatedGravity.x).toFixed(1),
                (this.estimatedGravity.y).toFixed(1),
                (this.estimatedGravity.z).toFixed(1),
                (this.measuredGravity.x).toFixed(1),
                (this.measuredGravity.y).toFixed(1),
                (this.measuredGravity.z).toFixed(1));
  }

  // Calculate the SLERP target: current orientation plus the measured-estimated
  // quaternion delta.
  var targetQ = new THREE.Quaternion();
  targetQ.copy(this.filterQ);
  targetQ.multiply(deltaQ);

  // SLERP factor: 0 is pure gyro, 1 is pure accel.
  this.filterQ.slerp(targetQ, 1 - this.kFilter);

  this.previousFilterQ.copy(this.filterQ);
};

ComplementaryFilter.prototype.getOrientation = function() {
  return this.filterQ;
};

ComplementaryFilter.prototype.accelToQuaternion_ = function(accel) {
  var normAccel = new THREE.Vector3();
  normAccel.copy(accel);
  normAccel.normalize();
  var quat = new THREE.Quaternion();
  quat.setFromUnitVectors(new THREE.Vector3(0, 0, -1), normAccel);
  quat.inverse();
  return quat;
};

ComplementaryFilter.prototype.gyroToQuaternionDelta_ = function(gyro, dt) {
  // Extract axis and angle from the gyroscope data.
  var quat = new THREE.Quaternion();
  var axis = new THREE.Vector3();
  axis.copy(gyro);
  axis.normalize();
  quat.setFromAxisAngle(axis, gyro.length() * dt);
  return quat;
};


module.exports = ComplementaryFilter;

},{"./sensor-sample.js":8,"./three-math.js":9,"./util.js":11}],4:[function(_dereq_,module,exports){
/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var PositionSensorVRDevice = _dereq_('./base.js').PositionSensorVRDevice;

var ComplementaryFilter = _dereq_('./complementary-filter.js');
var PosePredictor = _dereq_('./pose-predictor.js');
var TouchPanner = _dereq_('./touch-panner.js');
var THREE = _dereq_('./three-math.js');
var Util = _dereq_('./util.js');

/**
 * The positional sensor, implemented using DeviceMotion APIs.
 */
function FusionPositionSensorVRDevice() {
  this.deviceId = 'webvr-polyfill:fused';
  this.deviceName = 'VR Position Device (webvr-polyfill:fused)';

  this.accelerometer = new THREE.Vector3();
  this.gyroscope = new THREE.Vector3();

  window.addEventListener('devicemotion', this.onDeviceMotionChange_.bind(this));
  window.addEventListener('orientationchange', this.onScreenOrientationChange_.bind(this));

  this.filter = new ComplementaryFilter(WebVRConfig.K_FILTER || 0.98);
  this.posePredictor = new PosePredictor(WebVRConfig.PREDICTION_TIME_S || 0.040);
  this.touchPanner = new TouchPanner();

  this.filterToWorldQ = new THREE.Quaternion();

  // Set the filter to world transform, depending on OS.
  if (Util.isIOS()) {
    this.filterToWorldQ.setFromAxisAngle(new THREE.Vector3(1, 0, 0), Math.PI/2);
  } else {
    this.filterToWorldQ.setFromAxisAngle(new THREE.Vector3(1, 0, 0), -Math.PI/2);
  }

  this.worldToScreenQ = new THREE.Quaternion();
  this.setScreenTransform_();

  // Keep track of a reset transform for resetSensor.
  this.resetQ = new THREE.Quaternion();

  this.isFirefoxAndroid = Util.isFirefoxAndroid();
  this.isIOS = Util.isIOS();
}
FusionPositionSensorVRDevice.prototype = new PositionSensorVRDevice();

/**
 * Returns {orientation: {x,y,z,w}, position: null}.
 * Position is not supported since we can't do 6DOF.
 */
FusionPositionSensorVRDevice.prototype.getState = function() {
  return {
    hasOrientation: true,
    orientation: this.getOrientation(),
    hasPosition: false,
    position: null
  }
};

FusionPositionSensorVRDevice.prototype.getOrientation = function() {
  // Convert from filter space to the the same system used by the
  // deviceorientation event.
  var orientation = this.filter.getOrientation();

  // Predict orientation.
  this.predictedQ = this.posePredictor.getPrediction(orientation, this.gyroscope, this.previousTimestampS);

  // Convert to THREE coordinate system: -Z forward, Y up, X right.
  var out = new THREE.Quaternion();
  out.copy(this.filterToWorldQ);
  out.multiply(this.resetQ);
  if (!WebVRConfig.TOUCH_PANNER_DISABLED) {
    out.multiply(this.touchPanner.getOrientation());
  }
  out.multiply(this.predictedQ);
  out.multiply(this.worldToScreenQ);

  // Handle the yaw-only case.
  if (WebVRConfig.YAW_ONLY) {
    // Make a quaternion that only turns around the Y-axis.
    out.x = 0;
    out.z = 0;
    out.normalize();
  }
  return out;
};

FusionPositionSensorVRDevice.prototype.resetSensor = function() {
  var euler = new THREE.Euler();
  euler.setFromQuaternion(this.filter.getOrientation());
  var yaw = euler.y;
  console.log('resetSensor with yaw: %f', yaw);
  this.resetQ.setFromAxisAngle(new THREE.Vector3(0, 0, 1), -yaw);
  if (!WebVRConfig.TOUCH_PANNER_DISABLED) {
    this.touchPanner.resetSensor();
  }
};

FusionPositionSensorVRDevice.prototype.onDeviceMotionChange_ = function(deviceMotion) {
  var accGravity = deviceMotion.accelerationIncludingGravity;
  var rotRate = deviceMotion.rotationRate;
  var timestampS = deviceMotion.timeStamp / 1000;

  // Firefox Android timeStamp returns one thousandth of a millisecond.
  if (this.isFirefoxAndroid) {
    timestampS /= 1000;
  }

  var deltaS = timestampS - this.previousTimestampS;
  if (deltaS <= Util.MIN_TIMESTEP || deltaS > Util.MAX_TIMESTEP) {
    console.warn('Invalid timestamps detected. Time step between successive ' +
                 'gyroscope sensor samples is very small or not monotonic');
    this.previousTimestampS = timestampS;
    return;
  }
  this.accelerometer.set(-accGravity.x, -accGravity.y, -accGravity.z);
  this.gyroscope.set(rotRate.alpha, rotRate.beta, rotRate.gamma);

  // With iOS and Firefox Android, rotationRate is reported in degrees,
  // so we first convert to radians.
  if (this.isIOS || this.isFirefoxAndroid) {
    this.gyroscope.multiplyScalar(Math.PI / 180);
  }

  this.filter.addAccelMeasurement(this.accelerometer, timestampS);
  this.filter.addGyroMeasurement(this.gyroscope, timestampS);

  this.previousTimestampS = timestampS;
};

FusionPositionSensorVRDevice.prototype.onScreenOrientationChange_ =
    function(screenOrientation) {
  this.setScreenTransform_();
};

FusionPositionSensorVRDevice.prototype.setScreenTransform_ = function() {
  this.worldToScreenQ.set(0, 0, 0, 1);
  switch (window.orientation) {
    case 0:
      break;
    case 90:
      this.worldToScreenQ.setFromAxisAngle(new THREE.Vector3(0, 0, 1), -Math.PI/2);
      break;
    case -90:
      this.worldToScreenQ.setFromAxisAngle(new THREE.Vector3(0, 0, 1), Math.PI/2);
      break;
    case 180:
      // TODO.
      break;
  }
};


module.exports = FusionPositionSensorVRDevice;

},{"./base.js":1,"./complementary-filter.js":3,"./pose-predictor.js":7,"./three-math.js":9,"./touch-panner.js":10,"./util.js":11}],5:[function(_dereq_,module,exports){
/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var WebVRPolyfill = _dereq_('./webvr-polyfill.js');

// Initialize a WebVRConfig just in case.
window.WebVRConfig = window.WebVRConfig || {};
new WebVRPolyfill();

},{"./webvr-polyfill.js":12}],6:[function(_dereq_,module,exports){
/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var PositionSensorVRDevice = _dereq_('./base.js').PositionSensorVRDevice;
var THREE = _dereq_('./three-math.js');
var Util = _dereq_('./util.js');

// How much to rotate per key stroke.
var KEY_SPEED = 0.15;
var KEY_ANIMATION_DURATION = 80;

// How much to rotate for mouse events.
var MOUSE_SPEED_X = 0.5;
var MOUSE_SPEED_Y = 0.3;

/**
 * A virtual position sensor, implemented using keyboard and
 * mouse APIs. This is designed as for desktops/laptops where no Device*
 * events work.
 */
function MouseKeyboardPositionSensorVRDevice() {
  this.deviceId = 'webvr-polyfill:mouse-keyboard';
  this.deviceName = 'VR Position Device (webvr-polyfill:mouse-keyboard)';

  // Attach to mouse and keyboard events.
  window.addEventListener('keydown', this.onKeyDown_.bind(this));
  window.addEventListener('mousemove', this.onMouseMove_.bind(this));
  window.addEventListener('mousedown', this.onMouseDown_.bind(this));
  window.addEventListener('mouseup', this.onMouseUp_.bind(this));

  this.phi = 0;
  this.theta = 0;

  // Variables for keyboard-based rotation animation.
  this.targetAngle = null;

  // State variables for calculations.
  this.euler = new THREE.Euler();
  this.orientation = new THREE.Quaternion();

  // Variables for mouse-based rotation.
  this.rotateStart = new THREE.Vector2();
  this.rotateEnd = new THREE.Vector2();
  this.rotateDelta = new THREE.Vector2();
}
MouseKeyboardPositionSensorVRDevice.prototype = new PositionSensorVRDevice();

/**
 * Returns {orientation: {x,y,z,w}, position: null}.
 * Position is not supported for parity with other PositionSensors.
 */
MouseKeyboardPositionSensorVRDevice.prototype.getState = function() {
  this.euler.set(this.phi, this.theta, 0, 'YXZ');
  this.orientation.setFromEuler(this.euler);

  return {
    hasOrientation: true,
    orientation: this.orientation,
    hasPosition: false,
    position: null
  }
};

MouseKeyboardPositionSensorVRDevice.prototype.onKeyDown_ = function(e) {
  // Track WASD and arrow keys.
  if (e.keyCode == 38) { // Up key.
    this.animatePhi_(this.phi + KEY_SPEED);
  } else if (e.keyCode == 39) { // Right key.
    this.animateTheta_(this.theta - KEY_SPEED);
  } else if (e.keyCode == 40) { // Down key.
    this.animatePhi_(this.phi - KEY_SPEED);
  } else if (e.keyCode == 37) { // Left key.
    this.animateTheta_(this.theta + KEY_SPEED);
  }
};

MouseKeyboardPositionSensorVRDevice.prototype.animateTheta_ = function(targetAngle) {
  this.animateKeyTransitions_('theta', targetAngle);
};

MouseKeyboardPositionSensorVRDevice.prototype.animatePhi_ = function(targetAngle) {
  // Prevent looking too far up or down.
  targetAngle = Util.clamp(targetAngle, -Math.PI/2, Math.PI/2);
  this.animateKeyTransitions_('phi', targetAngle);
};

/**
 * Start an animation to transition an angle from one value to another.
 */
MouseKeyboardPositionSensorVRDevice.prototype.animateKeyTransitions_ = function(angleName, targetAngle) {
  // If an animation is currently running, cancel it.
  if (this.angleAnimation) {
    clearInterval(this.angleAnimation);
  }
  var startAngle = this[angleName];
  var startTime = new Date();
  // Set up an interval timer to perform the animation.
  this.angleAnimation = setInterval(function() {
    // Once we're finished the animation, we're done.
    var elapsed = new Date() - startTime;
    if (elapsed >= KEY_ANIMATION_DURATION) {
      this[angleName] = targetAngle;
      clearInterval(this.angleAnimation);
      return;
    }
    // Linearly interpolate the angle some amount.
    var percent = elapsed / KEY_ANIMATION_DURATION;
    this[angleName] = startAngle + (targetAngle - startAngle) * percent;
  }.bind(this), 1000/60);
};

MouseKeyboardPositionSensorVRDevice.prototype.onMouseDown_ = function(e) {
  this.rotateStart.set(e.clientX, e.clientY);
  this.isDragging = true;
};

// Very similar to https://gist.github.com/mrflix/8351020
MouseKeyboardPositionSensorVRDevice.prototype.onMouseMove_ = function(e) {
  if (!this.isDragging && !this.isPointerLocked_()) {
    return;
  }
  // Support pointer lock API.
  if (this.isPointerLocked_()) {
    var movementX = e.movementX || e.mozMovementX || 0;
    var movementY = e.movementY || e.mozMovementY || 0;
    this.rotateEnd.set(this.rotateStart.x - movementX, this.rotateStart.y - movementY);
  } else {
    this.rotateEnd.set(e.clientX, e.clientY);
  }
  // Calculate how much we moved in mouse space.
  this.rotateDelta.subVectors(this.rotateEnd, this.rotateStart);
  this.rotateStart.copy(this.rotateEnd);

  // Keep track of the cumulative euler angles.
  var element = document.body;
  this.phi += 2 * Math.PI * this.rotateDelta.y / element.clientHeight * MOUSE_SPEED_Y;
  this.theta += 2 * Math.PI * this.rotateDelta.x / element.clientWidth * MOUSE_SPEED_X;

  // Prevent looking too far up or down.
  this.phi = Util.clamp(this.phi, -Math.PI/2, Math.PI/2);
};

MouseKeyboardPositionSensorVRDevice.prototype.onMouseUp_ = function(e) {
  this.isDragging = false;
};

MouseKeyboardPositionSensorVRDevice.prototype.isPointerLocked_ = function() {
  var el = document.pointerLockElement || document.mozPointerLockElement ||
      document.webkitPointerLockElement;
  return el !== undefined;
};

MouseKeyboardPositionSensorVRDevice.prototype.resetSensor = function() {
  console.error('Not implemented yet.');
};

module.exports = MouseKeyboardPositionSensorVRDevice;

},{"./base.js":1,"./three-math.js":9,"./util.js":11}],7:[function(_dereq_,module,exports){
/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var THREE = _dereq_('./three-math.js');

var DEBUG = false;

/**
 * Given an orientation and the gyroscope data, predicts the future orientation
 * of the head. This makes rendering appear faster.
 *
 * Also see: http://msl.cs.uiuc.edu/~lavalle/papers/LavYerKatAnt14.pdf
 *
 * @param {Number} predictionTimeS time from head movement to the appearance of
 * the corresponding image.
 */
function PosePredictor(predictionTimeS) {
  this.predictionTimeS = predictionTimeS;

  // The quaternion corresponding to the previous state.
  this.previousQ = new THREE.Quaternion();
  // Previous time a prediction occurred.
  this.previousTimestampS = null;

  // The delta quaternion that adjusts the current pose.
  this.deltaQ = new THREE.Quaternion();
  // The output quaternion.
  this.outQ = new THREE.Quaternion();
}

PosePredictor.prototype.getPrediction = function(currentQ, gyro, timestampS) {
  if (!this.previousTimestampS) {
    this.previousQ.copy(currentQ);
    this.previousTimestampS = timestampS;
    return currentQ;
  }

  // Calculate axis and angle based on gyroscope rotation rate data.
  var axis = new THREE.Vector3();
  axis.copy(gyro);
  axis.normalize();

  var angularSpeed = gyro.length();

  // If we're rotating slowly, don't do prediction.
  if (angularSpeed < THREE.Math.degToRad(20)) {
    if (DEBUG) {
      console.log('Moving slowly, at %s deg/s: no prediction',
                  THREE.Math.radToDeg(angularSpeed).toFixed(1));
    }
    this.outQ.copy(currentQ);
    this.previousQ.copy(currentQ);
    return this.outQ;
  }

  // Get the predicted angle based on the time delta and latency.
  var deltaT = timestampS - this.previousTimestampS;
  var predictAngle = angularSpeed * this.predictionTimeS;

  this.deltaQ.setFromAxisAngle(axis, predictAngle);
  this.outQ.copy(this.previousQ);
  this.outQ.multiply(this.deltaQ);

  this.previousQ.copy(currentQ);

  return this.outQ;
};


module.exports = PosePredictor;

},{"./three-math.js":9}],8:[function(_dereq_,module,exports){
function SensorSample(sample, timestampS) {
  this.set(sample, timestampS);
};

SensorSample.prototype.set = function(sample, timestampS) {
  this.sample = sample;
  this.timestampS = timestampS;
};

SensorSample.prototype.copy = function(sensorSample) {
  this.set(sensorSample.sample, sensorSample.timestampS);
};

module.exports = SensorSample;

},{}],9:[function(_dereq_,module,exports){
/*
 * A subset of THREE.js, providing mostly quaternion and euler-related
 * operations, manually lifted from
 * https://github.com/mrdoob/three.js/tree/master/src/math, as of 9c30286b38df039fca389989ff06ea1c15d6bad1
 */

// Only use if the real THREE is not provided.
var THREE = window.THREE || {};

// If some piece of THREE is missing, fill it in here.
if (!THREE.Quaternion || !THREE.Vector3 || !THREE.Vector2 || !THREE.Euler || !THREE.Math) {
console.log('No THREE.js found.');


/*** START Quaternion ***/

/**
 * @author mikael emtinger / http://gomo.se/
 * @author alteredq / http://alteredqualia.com/
 * @author WestLangley / http://github.com/WestLangley
 * @author bhouston / http://exocortex.com
 */

THREE.Quaternion = function ( x, y, z, w ) {

	this._x = x || 0;
	this._y = y || 0;
	this._z = z || 0;
	this._w = ( w !== undefined ) ? w : 1;

};

THREE.Quaternion.prototype = {

	constructor: THREE.Quaternion,

	_x: 0,_y: 0, _z: 0, _w: 0,

	get x () {

		return this._x;

	},

	set x ( value ) {

		this._x = value;
		this.onChangeCallback();

	},

	get y () {

		return this._y;

	},

	set y ( value ) {

		this._y = value;
		this.onChangeCallback();

	},

	get z () {

		return this._z;

	},

	set z ( value ) {

		this._z = value;
		this.onChangeCallback();

	},

	get w () {

		return this._w;

	},

	set w ( value ) {

		this._w = value;
		this.onChangeCallback();

	},

	set: function ( x, y, z, w ) {

		this._x = x;
		this._y = y;
		this._z = z;
		this._w = w;

		this.onChangeCallback();

		return this;

	},

	copy: function ( quaternion ) {

		this._x = quaternion.x;
		this._y = quaternion.y;
		this._z = quaternion.z;
		this._w = quaternion.w;

		this.onChangeCallback();

		return this;

	},

	setFromEuler: function ( euler, update ) {

		if ( euler instanceof THREE.Euler === false ) {

			throw new Error( 'THREE.Quaternion: .setFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );
		}

		// http://www.mathworks.com/matlabcentral/fileexchange/
		// 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
		//	content/SpinCalc.m

		var c1 = Math.cos( euler._x / 2 );
		var c2 = Math.cos( euler._y / 2 );
		var c3 = Math.cos( euler._z / 2 );
		var s1 = Math.sin( euler._x / 2 );
		var s2 = Math.sin( euler._y / 2 );
		var s3 = Math.sin( euler._z / 2 );

		if ( euler.order === 'XYZ' ) {

			this._x = s1 * c2 * c3 + c1 * s2 * s3;
			this._y = c1 * s2 * c3 - s1 * c2 * s3;
			this._z = c1 * c2 * s3 + s1 * s2 * c3;
			this._w = c1 * c2 * c3 - s1 * s2 * s3;

		} else if ( euler.order === 'YXZ' ) {

			this._x = s1 * c2 * c3 + c1 * s2 * s3;
			this._y = c1 * s2 * c3 - s1 * c2 * s3;
			this._z = c1 * c2 * s3 - s1 * s2 * c3;
			this._w = c1 * c2 * c3 + s1 * s2 * s3;

		} else if ( euler.order === 'ZXY' ) {

			this._x = s1 * c2 * c3 - c1 * s2 * s3;
			this._y = c1 * s2 * c3 + s1 * c2 * s3;
			this._z = c1 * c2 * s3 + s1 * s2 * c3;
			this._w = c1 * c2 * c3 - s1 * s2 * s3;

		} else if ( euler.order === 'ZYX' ) {

			this._x = s1 * c2 * c3 - c1 * s2 * s3;
			this._y = c1 * s2 * c3 + s1 * c2 * s3;
			this._z = c1 * c2 * s3 - s1 * s2 * c3;
			this._w = c1 * c2 * c3 + s1 * s2 * s3;

		} else if ( euler.order === 'YZX' ) {

			this._x = s1 * c2 * c3 + c1 * s2 * s3;
			this._y = c1 * s2 * c3 + s1 * c2 * s3;
			this._z = c1 * c2 * s3 - s1 * s2 * c3;
			this._w = c1 * c2 * c3 - s1 * s2 * s3;

		} else if ( euler.order === 'XZY' ) {

			this._x = s1 * c2 * c3 - c1 * s2 * s3;
			this._y = c1 * s2 * c3 - s1 * c2 * s3;
			this._z = c1 * c2 * s3 + s1 * s2 * c3;
			this._w = c1 * c2 * c3 + s1 * s2 * s3;

		}

		if ( update !== false ) this.onChangeCallback();

		return this;

	},

	setFromAxisAngle: function ( axis, angle ) {

		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm

		// assumes axis is normalized

		var halfAngle = angle / 2, s = Math.sin( halfAngle );

		this._x = axis.x * s;
		this._y = axis.y * s;
		this._z = axis.z * s;
		this._w = Math.cos( halfAngle );

		this.onChangeCallback();

		return this;

	},

	setFromRotationMatrix: function ( m ) {

		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm

		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

		var te = m.elements,

			m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
			m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
			m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],

			trace = m11 + m22 + m33,
			s;

		if ( trace > 0 ) {

			s = 0.5 / Math.sqrt( trace + 1.0 );

			this._w = 0.25 / s;
			this._x = ( m32 - m23 ) * s;
			this._y = ( m13 - m31 ) * s;
			this._z = ( m21 - m12 ) * s;

		} else if ( m11 > m22 && m11 > m33 ) {

			s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );

			this._w = ( m32 - m23 ) / s;
			this._x = 0.25 * s;
			this._y = ( m12 + m21 ) / s;
			this._z = ( m13 + m31 ) / s;

		} else if ( m22 > m33 ) {

			s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );

			this._w = ( m13 - m31 ) / s;
			this._x = ( m12 + m21 ) / s;
			this._y = 0.25 * s;
			this._z = ( m23 + m32 ) / s;

		} else {

			s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );

			this._w = ( m21 - m12 ) / s;
			this._x = ( m13 + m31 ) / s;
			this._y = ( m23 + m32 ) / s;
			this._z = 0.25 * s;

		}

		this.onChangeCallback();

		return this;

	},

	setFromUnitVectors: function () {

		// http://lolengine.net/blog/2014/02/24/quaternion-from-two-vectors-final

		// assumes direction vectors vFrom and vTo are normalized

		var v1, r;

		var EPS = 0.000001;

		return function ( vFrom, vTo ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();

			r = vFrom.dot( vTo ) + 1;

			if ( r < EPS ) {

				r = 0;

				if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {

					v1.set( - vFrom.y, vFrom.x, 0 );

				} else {

					v1.set( 0, - vFrom.z, vFrom.y );

				}

			} else {

				v1.crossVectors( vFrom, vTo );

			}

			this._x = v1.x;
			this._y = v1.y;
			this._z = v1.z;
			this._w = r;

			this.normalize();

			return this;

		}

	}(),

	inverse: function () {

		this.conjugate().normalize();

		return this;

	},

	conjugate: function () {

		this._x *= - 1;
		this._y *= - 1;
		this._z *= - 1;

		this.onChangeCallback();

		return this;

	},

	dot: function ( v ) {

		return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;

	},

	lengthSq: function () {

		return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;

	},

	length: function () {

		return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );

	},

	normalize: function () {

		var l = this.length();

		if ( l === 0 ) {

			this._x = 0;
			this._y = 0;
			this._z = 0;
			this._w = 1;

		} else {

			l = 1 / l;

			this._x = this._x * l;
			this._y = this._y * l;
			this._z = this._z * l;
			this._w = this._w * l;

		}

		this.onChangeCallback();

		return this;

	},

	multiply: function ( q, p ) {

		if ( p !== undefined ) {

			console.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );
			return this.multiplyQuaternions( q, p );

		}

		return this.multiplyQuaternions( this, q );

	},

	multiplyQuaternions: function ( a, b ) {

		// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm

		var qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;
		var qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;

		this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
		this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
		this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
		this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;

		this.onChangeCallback();

		return this;

	},

	multiplyVector3: function ( vector ) {

		console.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );
		return vector.applyQuaternion( this );

	},

	slerp: function ( qb, t ) {

		if ( t === 0 ) return this;
		if ( t === 1 ) return this.copy( qb );

		var x = this._x, y = this._y, z = this._z, w = this._w;

		// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/

		var cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;

		if ( cosHalfTheta < 0 ) {

			this._w = - qb._w;
			this._x = - qb._x;
			this._y = - qb._y;
			this._z = - qb._z;

			cosHalfTheta = - cosHalfTheta;

		} else {

			this.copy( qb );

		}

		if ( cosHalfTheta >= 1.0 ) {

			this._w = w;
			this._x = x;
			this._y = y;
			this._z = z;

			return this;

		}

		var halfTheta = Math.acos( cosHalfTheta );
		var sinHalfTheta = Math.sqrt( 1.0 - cosHalfTheta * cosHalfTheta );

		if ( Math.abs( sinHalfTheta ) < 0.001 ) {

			this._w = 0.5 * ( w + this._w );
			this._x = 0.5 * ( x + this._x );
			this._y = 0.5 * ( y + this._y );
			this._z = 0.5 * ( z + this._z );

			return this;

		}

		var ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,
		ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;

		this._w = ( w * ratioA + this._w * ratioB );
		this._x = ( x * ratioA + this._x * ratioB );
		this._y = ( y * ratioA + this._y * ratioB );
		this._z = ( z * ratioA + this._z * ratioB );

		this.onChangeCallback();

		return this;

	},

	equals: function ( quaternion ) {

		return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );

	},

	fromArray: function ( array, offset ) {

		if ( offset === undefined ) offset = 0;

		this._x = array[ offset ];
		this._y = array[ offset + 1 ];
		this._z = array[ offset + 2 ];
		this._w = array[ offset + 3 ];

		this.onChangeCallback();

		return this;

	},

	toArray: function ( array, offset ) {

		if ( array === undefined ) array = [];
		if ( offset === undefined ) offset = 0;

		array[ offset ] = this._x;
		array[ offset + 1 ] = this._y;
		array[ offset + 2 ] = this._z;
		array[ offset + 3 ] = this._w;

		return array;

	},

	onChange: function ( callback ) {

		this.onChangeCallback = callback;

		return this;

	},

	onChangeCallback: function () {},

	clone: function () {

		return new THREE.Quaternion( this._x, this._y, this._z, this._w );

	}

};

THREE.Quaternion.slerp = function ( qa, qb, qm, t ) {

	return qm.copy( qa ).slerp( qb, t );

}

/*** END Quaternion ***/
/*** START Vector2 ***/
/**
 * @author mrdoob / http://mrdoob.com/
 * @author philogb / http://blog.thejit.org/
 * @author egraether / http://egraether.com/
 * @author zz85 / http://www.lab4games.net/zz85/blog
 */

THREE.Vector2 = function ( x, y ) {

	this.x = x || 0;
	this.y = y || 0;

};

THREE.Vector2.prototype = {

	constructor: THREE.Vector2,

	set: function ( x, y ) {

		this.x = x;
		this.y = y;

		return this;

	},

	setX: function ( x ) {

		this.x = x;

		return this;

	},

	setY: function ( y ) {

		this.y = y;

		return this;

	},

	setComponent: function ( index, value ) {

		switch ( index ) {

			case 0: this.x = value; break;
			case 1: this.y = value; break;
			default: throw new Error( 'index is out of range: ' + index );

		}

	},

	getComponent: function ( index ) {

		switch ( index ) {

			case 0: return this.x;
			case 1: return this.y;
			default: throw new Error( 'index is out of range: ' + index );

		}

	},

	copy: function ( v ) {

		this.x = v.x;
		this.y = v.y;

		return this;

	},

	add: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
			return this.addVectors( v, w );

		}

		this.x += v.x;
		this.y += v.y;

		return this;

	},

	addVectors: function ( a, b ) {

		this.x = a.x + b.x;
		this.y = a.y + b.y;

		return this;

	},

	addScalar: function ( s ) {

		this.x += s;
		this.y += s;

		return this;

	},

	sub: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
			return this.subVectors( v, w );

		}

		this.x -= v.x;
		this.y -= v.y;

		return this;

	},

	subVectors: function ( a, b ) {

		this.x = a.x - b.x;
		this.y = a.y - b.y;

		return this;

	},

	multiply: function ( v ) {

		this.x *= v.x;
		this.y *= v.y;

		return this;

	},

	multiplyScalar: function ( s ) {

		this.x *= s;
		this.y *= s;

		return this;

	},

	divide: function ( v ) {

		this.x /= v.x;
		this.y /= v.y;

		return this;

	},

	divideScalar: function ( scalar ) {

		if ( scalar !== 0 ) {

			var invScalar = 1 / scalar;

			this.x *= invScalar;
			this.y *= invScalar;

		} else {

			this.x = 0;
			this.y = 0;

		}

		return this;

	},

	min: function ( v ) {

		if ( this.x > v.x ) {

			this.x = v.x;

		}

		if ( this.y > v.y ) {

			this.y = v.y;

		}

		return this;

	},

	max: function ( v ) {

		if ( this.x < v.x ) {

			this.x = v.x;

		}

		if ( this.y < v.y ) {

			this.y = v.y;

		}

		return this;

	},

	clamp: function ( min, max ) {

		// This function assumes min < max, if this assumption isn't true it will not operate correctly

		if ( this.x < min.x ) {

			this.x = min.x;

		} else if ( this.x > max.x ) {

			this.x = max.x;

		}

		if ( this.y < min.y ) {

			this.y = min.y;

		} else if ( this.y > max.y ) {

			this.y = max.y;

		}

		return this;
	},

	clampScalar: ( function () {

		var min, max;

		return function ( minVal, maxVal ) {

			if ( min === undefined ) {

				min = new THREE.Vector2();
				max = new THREE.Vector2();

			}

			min.set( minVal, minVal );
			max.set( maxVal, maxVal );

			return this.clamp( min, max );

		};

	} )(),

	floor: function () {

		this.x = Math.floor( this.x );
		this.y = Math.floor( this.y );

		return this;

	},

	ceil: function () {

		this.x = Math.ceil( this.x );
		this.y = Math.ceil( this.y );

		return this;

	},

	round: function () {

		this.x = Math.round( this.x );
		this.y = Math.round( this.y );

		return this;

	},

	roundToZero: function () {

		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );

		return this;

	},

	negate: function () {

		this.x = - this.x;
		this.y = - this.y;

		return this;

	},

	dot: function ( v ) {

		return this.x * v.x + this.y * v.y;

	},

	lengthSq: function () {

		return this.x * this.x + this.y * this.y;

	},

	length: function () {

		return Math.sqrt( this.x * this.x + this.y * this.y );

	},

	normalize: function () {

		return this.divideScalar( this.length() );

	},

	distanceTo: function ( v ) {

		return Math.sqrt( this.distanceToSquared( v ) );

	},

	distanceToSquared: function ( v ) {

		var dx = this.x - v.x, dy = this.y - v.y;
		return dx * dx + dy * dy;

	},

	setLength: function ( l ) {

		var oldLength = this.length();

		if ( oldLength !== 0 && l !== oldLength ) {

			this.multiplyScalar( l / oldLength );
		}

		return this;

	},

	lerp: function ( v, alpha ) {

		this.x += ( v.x - this.x ) * alpha;
		this.y += ( v.y - this.y ) * alpha;

		return this;

	},

	equals: function ( v ) {

		return ( ( v.x === this.x ) && ( v.y === this.y ) );

	},

	fromArray: function ( array, offset ) {

		if ( offset === undefined ) offset = 0;

		this.x = array[ offset ];
		this.y = array[ offset + 1 ];

		return this;

	},

	toArray: function ( array, offset ) {

		if ( array === undefined ) array = [];
		if ( offset === undefined ) offset = 0;

		array[ offset ] = this.x;
		array[ offset + 1 ] = this.y;

		return array;

	},

	fromAttribute: function ( attribute, index, offset ) {

	    if ( offset === undefined ) offset = 0;

	    index = index * attribute.itemSize + offset;

	    this.x = attribute.array[ index ];
	    this.y = attribute.array[ index + 1 ];

	    return this;

	},

	clone: function () {

		return new THREE.Vector2( this.x, this.y );

	}

};
/*** END Vector2 ***/
/*** START Vector3 ***/

/**
 * @author mrdoob / http://mrdoob.com/
 * @author *kile / http://kile.stravaganza.org/
 * @author philogb / http://blog.thejit.org/
 * @author mikael emtinger / http://gomo.se/
 * @author egraether / http://egraether.com/
 * @author WestLangley / http://github.com/WestLangley
 */

THREE.Vector3 = function ( x, y, z ) {

	this.x = x || 0;
	this.y = y || 0;
	this.z = z || 0;

};

THREE.Vector3.prototype = {

	constructor: THREE.Vector3,

	set: function ( x, y, z ) {

		this.x = x;
		this.y = y;
		this.z = z;

		return this;

	},

	setX: function ( x ) {

		this.x = x;

		return this;

	},

	setY: function ( y ) {

		this.y = y;

		return this;

	},

	setZ: function ( z ) {

		this.z = z;

		return this;

	},

	setComponent: function ( index, value ) {

		switch ( index ) {

			case 0: this.x = value; break;
			case 1: this.y = value; break;
			case 2: this.z = value; break;
			default: throw new Error( 'index is out of range: ' + index );

		}

	},

	getComponent: function ( index ) {

		switch ( index ) {

			case 0: return this.x;
			case 1: return this.y;
			case 2: return this.z;
			default: throw new Error( 'index is out of range: ' + index );

		}

	},

	copy: function ( v ) {

		this.x = v.x;
		this.y = v.y;
		this.z = v.z;

		return this;

	},

	add: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
			return this.addVectors( v, w );

		}

		this.x += v.x;
		this.y += v.y;
		this.z += v.z;

		return this;

	},

	addScalar: function ( s ) {

		this.x += s;
		this.y += s;
		this.z += s;

		return this;

	},

	addVectors: function ( a, b ) {

		this.x = a.x + b.x;
		this.y = a.y + b.y;
		this.z = a.z + b.z;

		return this;

	},

	sub: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
			return this.subVectors( v, w );

		}

		this.x -= v.x;
		this.y -= v.y;
		this.z -= v.z;

		return this;

	},

	subVectors: function ( a, b ) {

		this.x = a.x - b.x;
		this.y = a.y - b.y;
		this.z = a.z - b.z;

		return this;

	},

	multiply: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' );
			return this.multiplyVectors( v, w );

		}

		this.x *= v.x;
		this.y *= v.y;
		this.z *= v.z;

		return this;

	},

	multiplyScalar: function ( scalar ) {

		this.x *= scalar;
		this.y *= scalar;
		this.z *= scalar;

		return this;

	},

	multiplyVectors: function ( a, b ) {

		this.x = a.x * b.x;
		this.y = a.y * b.y;
		this.z = a.z * b.z;

		return this;

	},

	applyEuler: function () {

		var quaternion;

		return function ( euler ) {

			if ( euler instanceof THREE.Euler === false ) {

				console.error( 'THREE.Vector3: .applyEuler() now expects a Euler rotation rather than a Vector3 and order.' );

			}

			if ( quaternion === undefined ) quaternion = new THREE.Quaternion();

			this.applyQuaternion( quaternion.setFromEuler( euler ) );

			return this;

		};

	}(),

	applyAxisAngle: function () {

		var quaternion;

		return function ( axis, angle ) {

			if ( quaternion === undefined ) quaternion = new THREE.Quaternion();

			this.applyQuaternion( quaternion.setFromAxisAngle( axis, angle ) );

			return this;

		};

	}(),

	applyMatrix3: function ( m ) {

		var x = this.x;
		var y = this.y;
		var z = this.z;

		var e = m.elements;

		this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;
		this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;
		this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;

		return this;

	},

	applyMatrix4: function ( m ) {

		// input: THREE.Matrix4 affine matrix

		var x = this.x, y = this.y, z = this.z;

		var e = m.elements;

		this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ]  * z + e[ 12 ];
		this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ]  * z + e[ 13 ];
		this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ];

		return this;

	},

	applyProjection: function ( m ) {

		// input: THREE.Matrix4 projection matrix

		var x = this.x, y = this.y, z = this.z;

		var e = m.elements;
		var d = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] ); // perspective divide

		this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ]  * z + e[ 12 ] ) * d;
		this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ]  * z + e[ 13 ] ) * d;
		this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * d;

		return this;

	},

	applyQuaternion: function ( q ) {

		var x = this.x;
		var y = this.y;
		var z = this.z;

		var qx = q.x;
		var qy = q.y;
		var qz = q.z;
		var qw = q.w;

		// calculate quat * vector

		var ix =  qw * x + qy * z - qz * y;
		var iy =  qw * y + qz * x - qx * z;
		var iz =  qw * z + qx * y - qy * x;
		var iw = - qx * x - qy * y - qz * z;

		// calculate result * inverse quat

		this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;
		this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;
		this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;

		return this;

	},

	project: function () {

		var matrix;

		return function ( camera ) {

			if ( matrix === undefined ) matrix = new THREE.Matrix4();

			matrix.multiplyMatrices( camera.projectionMatrix, matrix.getInverse( camera.matrixWorld ) );
			return this.applyProjection( matrix );

		};

	}(),

	unproject: function () {

		var matrix;

		return function ( camera ) {

			if ( matrix === undefined ) matrix = new THREE.Matrix4();

			matrix.multiplyMatrices( camera.matrixWorld, matrix.getInverse( camera.projectionMatrix ) );
			return this.applyProjection( matrix );

		};

	}(),

	transformDirection: function ( m ) {

		// input: THREE.Matrix4 affine matrix
		// vector interpreted as a direction

		var x = this.x, y = this.y, z = this.z;

		var e = m.elements;

		this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ]  * z;
		this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ]  * z;
		this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;

		this.normalize();

		return this;

	},

	divide: function ( v ) {

		this.x /= v.x;
		this.y /= v.y;
		this.z /= v.z;

		return this;

	},

	divideScalar: function ( scalar ) {

		if ( scalar !== 0 ) {

			var invScalar = 1 / scalar;

			this.x *= invScalar;
			this.y *= invScalar;
			this.z *= invScalar;

		} else {

			this.x = 0;
			this.y = 0;
			this.z = 0;

		}

		return this;

	},

	min: function ( v ) {

		if ( this.x > v.x ) {

			this.x = v.x;

		}

		if ( this.y > v.y ) {

			this.y = v.y;

		}

		if ( this.z > v.z ) {

			this.z = v.z;

		}

		return this;

	},

	max: function ( v ) {

		if ( this.x < v.x ) {

			this.x = v.x;

		}

		if ( this.y < v.y ) {

			this.y = v.y;

		}

		if ( this.z < v.z ) {

			this.z = v.z;

		}

		return this;

	},

	clamp: function ( min, max ) {

		// This function assumes min < max, if this assumption isn't true it will not operate correctly

		if ( this.x < min.x ) {

			this.x = min.x;

		} else if ( this.x > max.x ) {

			this.x = max.x;

		}

		if ( this.y < min.y ) {

			this.y = min.y;

		} else if ( this.y > max.y ) {

			this.y = max.y;

		}

		if ( this.z < min.z ) {

			this.z = min.z;

		} else if ( this.z > max.z ) {

			this.z = max.z;

		}

		return this;

	},

	clampScalar: ( function () {

		var min, max;

		return function ( minVal, maxVal ) {

			if ( min === undefined ) {

				min = new THREE.Vector3();
				max = new THREE.Vector3();

			}

			min.set( minVal, minVal, minVal );
			max.set( maxVal, maxVal, maxVal );

			return this.clamp( min, max );

		};

	} )(),

	floor: function () {

		this.x = Math.floor( this.x );
		this.y = Math.floor( this.y );
		this.z = Math.floor( this.z );

		return this;

	},

	ceil: function () {

		this.x = Math.ceil( this.x );
		this.y = Math.ceil( this.y );
		this.z = Math.ceil( this.z );

		return this;

	},

	round: function () {

		this.x = Math.round( this.x );
		this.y = Math.round( this.y );
		this.z = Math.round( this.z );

		return this;

	},

	roundToZero: function () {

		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
		this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );

		return this;

	},

	negate: function () {

		this.x = - this.x;
		this.y = - this.y;
		this.z = - this.z;

		return this;

	},

	dot: function ( v ) {

		return this.x * v.x + this.y * v.y + this.z * v.z;

	},

	lengthSq: function () {

		return this.x * this.x + this.y * this.y + this.z * this.z;

	},

	length: function () {

		return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );

	},

	lengthManhattan: function () {

		return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );

	},

	normalize: function () {

		return this.divideScalar( this.length() );

	},

	setLength: function ( l ) {

		var oldLength = this.length();

		if ( oldLength !== 0 && l !== oldLength  ) {

			this.multiplyScalar( l / oldLength );
		}

		return this;

	},

	lerp: function ( v, alpha ) {

		this.x += ( v.x - this.x ) * alpha;
		this.y += ( v.y - this.y ) * alpha;
		this.z += ( v.z - this.z ) * alpha;

		return this;

	},

	cross: function ( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' );
			return this.crossVectors( v, w );

		}

		var x = this.x, y = this.y, z = this.z;

		this.x = y * v.z - z * v.y;
		this.y = z * v.x - x * v.z;
		this.z = x * v.y - y * v.x;

		return this;

	},

	crossVectors: function ( a, b ) {

		var ax = a.x, ay = a.y, az = a.z;
		var bx = b.x, by = b.y, bz = b.z;

		this.x = ay * bz - az * by;
		this.y = az * bx - ax * bz;
		this.z = ax * by - ay * bx;

		return this;

	},

	projectOnVector: function () {

		var v1, dot;

		return function ( vector ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();

			v1.copy( vector ).normalize();

			dot = this.dot( v1 );

			return this.copy( v1 ).multiplyScalar( dot );

		};

	}(),

	projectOnPlane: function () {

		var v1;

		return function ( planeNormal ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();

			v1.copy( this ).projectOnVector( planeNormal );

			return this.sub( v1 );

		}

	}(),

	reflect: function () {

		// reflect incident vector off plane orthogonal to normal
		// normal is assumed to have unit length

		var v1;

		return function ( normal ) {

			if ( v1 === undefined ) v1 = new THREE.Vector3();

			return this.sub( v1.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );

		}

	}(),

	angleTo: function ( v ) {

		var theta = this.dot( v ) / ( this.length() * v.length() );

		// clamp, to handle numerical problems

		return Math.acos( THREE.Math.clamp( theta, - 1, 1 ) );

	},

	distanceTo: function ( v ) {

		return Math.sqrt( this.distanceToSquared( v ) );

	},

	distanceToSquared: function ( v ) {

		var dx = this.x - v.x;
		var dy = this.y - v.y;
		var dz = this.z - v.z;

		return dx * dx + dy * dy + dz * dz;

	},

	setEulerFromRotationMatrix: function ( m, order ) {

		console.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' );

	},

	setEulerFromQuaternion: function ( q, order ) {

		console.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' );

	},

	getPositionFromMatrix: function ( m ) {

		console.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' );

		return this.setFromMatrixPosition( m );

	},

	getScaleFromMatrix: function ( m ) {

		console.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' );

		return this.setFromMatrixScale( m );
	},

	getColumnFromMatrix: function ( index, matrix ) {

		console.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' );

		return this.setFromMatrixColumn( index, matrix );

	},

	setFromMatrixPosition: function ( m ) {

		this.x = m.elements[ 12 ];
		this.y = m.elements[ 13 ];
		this.z = m.elements[ 14 ];

		return this;

	},

	setFromMatrixScale: function ( m ) {

		var sx = this.set( m.elements[ 0 ], m.elements[ 1 ], m.elements[  2 ] ).length();
		var sy = this.set( m.elements[ 4 ], m.elements[ 5 ], m.elements[  6 ] ).length();
		var sz = this.set( m.elements[ 8 ], m.elements[ 9 ], m.elements[ 10 ] ).length();

		this.x = sx;
		this.y = sy;
		this.z = sz;

		return this;
	},

	setFromMatrixColumn: function ( index, matrix ) {

		var offset = index * 4;

		var me = matrix.elements;

		this.x = me[ offset ];
		this.y = me[ offset + 1 ];
		this.z = me[ offset + 2 ];

		return this;

	},

	equals: function ( v ) {

		return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );

	},

	fromArray: function ( array, offset ) {

		if ( offset === undefined ) offset = 0;

		this.x = array[ offset ];
		this.y = array[ offset + 1 ];
		this.z = array[ offset + 2 ];

		return this;

	},

	toArray: function ( array, offset ) {

		if ( array === undefined ) array = [];
		if ( offset === undefined ) offset = 0;

		array[ offset ] = this.x;
		array[ offset + 1 ] = this.y;
		array[ offset + 2 ] = this.z;

		return array;

	},

	fromAttribute: function ( attribute, index, offset ) {

	    if ( offset === undefined ) offset = 0;

	    index = index * attribute.itemSize + offset;

	    this.x = attribute.array[ index ];
	    this.y = attribute.array[ index + 1 ];
	    this.z = attribute.array[ index + 2 ];

	    return this;

	},

	clone: function () {

		return new THREE.Vector3( this.x, this.y, this.z );

	}

};
/*** END Vector3 ***/
/*** START Euler ***/
/**
 * @author mrdoob / http://mrdoob.com/
 * @author WestLangley / http://github.com/WestLangley
 * @author bhouston / http://exocortex.com
 */

THREE.Euler = function ( x, y, z, order ) {

	this._x = x || 0;
	this._y = y || 0;
	this._z = z || 0;
	this._order = order || THREE.Euler.DefaultOrder;

};

THREE.Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];

THREE.Euler.DefaultOrder = 'XYZ';

THREE.Euler.prototype = {

	constructor: THREE.Euler,

	_x: 0, _y: 0, _z: 0, _order: THREE.Euler.DefaultOrder,

	get x () {

		return this._x;

	},

	set x ( value ) {

		this._x = value;
		this.onChangeCallback();

	},

	get y () {

		return this._y;

	},

	set y ( value ) {

		this._y = value;
		this.onChangeCallback();

	},

	get z () {

		return this._z;

	},

	set z ( value ) {

		this._z = value;
		this.onChangeCallback();

	},

	get order () {

		return this._order;

	},

	set order ( value ) {

		this._order = value;
		this.onChangeCallback();

	},

	set: function ( x, y, z, order ) {

		this._x = x;
		this._y = y;
		this._z = z;
		this._order = order || this._order;

		this.onChangeCallback();

		return this;

	},

	copy: function ( euler ) {

		this._x = euler._x;
		this._y = euler._y;
		this._z = euler._z;
		this._order = euler._order;

		this.onChangeCallback();

		return this;

	},

	setFromRotationMatrix: function ( m, order, update ) {

		var clamp = THREE.Math.clamp;

		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

		var te = m.elements;
		var m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];
		var m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];
		var m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];

		order = order || this._order;

		if ( order === 'XYZ' ) {

			this._y = Math.asin( clamp( m13, - 1, 1 ) );

			if ( Math.abs( m13 ) < 0.99999 ) {

				this._x = Math.atan2( - m23, m33 );
				this._z = Math.atan2( - m12, m11 );

			} else {

				this._x = Math.atan2( m32, m22 );
				this._z = 0;

			}

		} else if ( order === 'YXZ' ) {

			this._x = Math.asin( - clamp( m23, - 1, 1 ) );

			if ( Math.abs( m23 ) < 0.99999 ) {

				this._y = Math.atan2( m13, m33 );
				this._z = Math.atan2( m21, m22 );

			} else {

				this._y = Math.atan2( - m31, m11 );
				this._z = 0;

			}

		} else if ( order === 'ZXY' ) {

			this._x = Math.asin( clamp( m32, - 1, 1 ) );

			if ( Math.abs( m32 ) < 0.99999 ) {

				this._y = Math.atan2( - m31, m33 );
				this._z = Math.atan2( - m12, m22 );

			} else {

				this._y = 0;
				this._z = Math.atan2( m21, m11 );

			}

		} else if ( order === 'ZYX' ) {

			this._y = Math.asin( - clamp( m31, - 1, 1 ) );

			if ( Math.abs( m31 ) < 0.99999 ) {

				this._x = Math.atan2( m32, m33 );
				this._z = Math.atan2( m21, m11 );

			} else {

				this._x = 0;
				this._z = Math.atan2( - m12, m22 );

			}

		} else if ( order === 'YZX' ) {

			this._z = Math.asin( clamp( m21, - 1, 1 ) );

			if ( Math.abs( m21 ) < 0.99999 ) {

				this._x = Math.atan2( - m23, m22 );
				this._y = Math.atan2( - m31, m11 );

			} else {

				this._x = 0;
				this._y = Math.atan2( m13, m33 );

			}

		} else if ( order === 'XZY' ) {

			this._z = Math.asin( - clamp( m12, - 1, 1 ) );

			if ( Math.abs( m12 ) < 0.99999 ) {

				this._x = Math.atan2( m32, m22 );
				this._y = Math.atan2( m13, m11 );

			} else {

				this._x = Math.atan2( - m23, m33 );
				this._y = 0;

			}

		} else {

			console.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order )

		}

		this._order = order;

		if ( update !== false ) this.onChangeCallback();

		return this;

	},

	setFromQuaternion: function () {

		var matrix;

		return function ( q, order, update ) {

			if ( matrix === undefined ) matrix = new THREE.Matrix4();
			matrix.makeRotationFromQuaternion( q );
			this.setFromRotationMatrix( matrix, order, update );

			return this;

		};

	}(),

	setFromVector3: function ( v, order ) {

		return this.set( v.x, v.y, v.z, order || this._order );

	},

	reorder: function () {

		// WARNING: this discards revolution information -bhouston

		var q = new THREE.Quaternion();

		return function ( newOrder ) {

			q.setFromEuler( this );
			this.setFromQuaternion( q, newOrder );

		};

	}(),

	equals: function ( euler ) {

		return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );

	},

	fromArray: function ( array ) {

		this._x = array[ 0 ];
		this._y = array[ 1 ];
		this._z = array[ 2 ];
		if ( array[ 3 ] !== undefined ) this._order = array[ 3 ];

		this.onChangeCallback();

		return this;

	},

	toArray: function () {

		return [ this._x, this._y, this._z, this._order ];

	},

	toVector3: function ( optionalResult ) {

		if ( optionalResult ) {

			return optionalResult.set( this._x, this._y, this._z );

		} else {

			return new THREE.Vector3( this._x, this._y, this._z );

		}

	},

	onChange: function ( callback ) {

		this.onChangeCallback = callback;

		return this;

	},

	onChangeCallback: function () {},

	clone: function () {

		return new THREE.Euler( this._x, this._y, this._z, this._order );

	}

};
/*** END Euler ***/
/*** START Math ***/
/**
 * @author alteredq / http://alteredqualia.com/
 * @author mrdoob / http://mrdoob.com/
 */

THREE.Math = {

	generateUUID: function () {

		// http://www.broofa.com/Tools/Math.uuid.htm

		var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split( '' );
		var uuid = new Array( 36 );
		var rnd = 0, r;

		return function () {

			for ( var i = 0; i < 36; i ++ ) {

				if ( i == 8 || i == 13 || i == 18 || i == 23 ) {

					uuid[ i ] = '-';

				} else if ( i == 14 ) {

					uuid[ i ] = '4';

				} else {

					if ( rnd <= 0x02 ) rnd = 0x2000000 + ( Math.random() * 0x1000000 ) | 0;
					r = rnd & 0xf;
					rnd = rnd >> 4;
					uuid[ i ] = chars[ ( i == 19 ) ? ( r & 0x3 ) | 0x8 : r ];

				}
			}

			return uuid.join( '' );

		};

	}(),

	// Clamp value to range <a, b>

	clamp: function ( x, a, b ) {

		return ( x < a ) ? a : ( ( x > b ) ? b : x );

	},

	// Clamp value to range <a, inf)

	clampBottom: function ( x, a ) {

		return x < a ? a : x;

	},

	// Linear mapping from range <a1, a2> to range <b1, b2>

	mapLinear: function ( x, a1, a2, b1, b2 ) {

		return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );

	},

	// http://en.wikipedia.org/wiki/Smoothstep

	smoothstep: function ( x, min, max ) {

		if ( x <= min ) return 0;
		if ( x >= max ) return 1;

		x = ( x - min ) / ( max - min );

		return x * x * ( 3 - 2 * x );

	},

	smootherstep: function ( x, min, max ) {

		if ( x <= min ) return 0;
		if ( x >= max ) return 1;

		x = ( x - min ) / ( max - min );

		return x * x * x * ( x * ( x * 6 - 15 ) + 10 );

	},

	// Random float from <0, 1> with 16 bits of randomness
	// (standard Math.random() creates repetitive patterns when applied over larger space)

	random16: function () {

		return ( 65280 * Math.random() + 255 * Math.random() ) / 65535;

	},

	// Random integer from <low, high> interval

	randInt: function ( low, high ) {

		return Math.floor( this.randFloat( low, high ) );

	},

	// Random float from <low, high> interval

	randFloat: function ( low, high ) {

		return low + Math.random() * ( high - low );

	},

	// Random float from <-range/2, range/2> interval

	randFloatSpread: function ( range ) {

		return range * ( 0.5 - Math.random() );

	},

	degToRad: function () {

		var degreeToRadiansFactor = Math.PI / 180;

		return function ( degrees ) {

			return degrees * degreeToRadiansFactor;

		};

	}(),

	radToDeg: function () {

		var radianToDegreesFactor = 180 / Math.PI;

		return function ( radians ) {

			return radians * radianToDegreesFactor;

		};

	}(),

	isPowerOfTwo: function ( value ) {

		return ( value & ( value - 1 ) ) === 0 && value !== 0;

	},

	nextPowerOfTwo: function ( value ) {

		value --;
		value |= value >> 1;
		value |= value >> 2;
		value |= value >> 4;
		value |= value >> 8;
		value |= value >> 16;
		value ++;

		return value;
	}

};

/*** END Math ***/

}

module.exports = THREE;

},{}],10:[function(_dereq_,module,exports){
/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var THREE = _dereq_('./three-math.js');
var Util = _dereq_('./util.js');

var ROTATE_SPEED = 0.5;
/**
 * Provides a quaternion responsible for pre-panning the scene before further
 * transformations due to device sensors.
 */
function TouchPanner() {
  window.addEventListener('touchstart', this.onTouchStart_.bind(this));
  window.addEventListener('touchmove', this.onTouchMove_.bind(this));
  window.addEventListener('touchend', this.onTouchEnd_.bind(this));

  this.isTouching = false;
  this.rotateStart = new THREE.Vector2();
  this.rotateEnd = new THREE.Vector2();
  this.rotateDelta = new THREE.Vector2();

  this.theta = 0;
  this.orientation = new THREE.Quaternion();
}

TouchPanner.prototype.getOrientation = function() {
  this.orientation.setFromEuler(new THREE.Euler(0, 0, this.theta));
  return this.orientation;
};

TouchPanner.prototype.resetSensor = function() {
  this.theta = 0;
};

TouchPanner.prototype.onTouchStart_ = function(e) {
  // Only respond if there is exactly one touch.
  if (e.touches.length != 1) {
    return;
  }
  this.rotateStart.set(e.touches[0].pageX, e.touches[0].pageY);
  this.isTouching = true;
};

TouchPanner.prototype.onTouchMove_ = function(e) {
  if (!this.isTouching) {
    return;
  }
  this.rotateEnd.set(e.touches[0].pageX, e.touches[0].pageY);
  this.rotateDelta.subVectors(this.rotateEnd, this.rotateStart);
  this.rotateStart.copy(this.rotateEnd);

  // On iOS, direction is inverted.
  if (Util.isIOS()) {
    this.rotateDelta.x *= -1;
  }

  var element = document.body;
  this.theta += 2 * Math.PI * this.rotateDelta.x / element.clientWidth * ROTATE_SPEED;
};

TouchPanner.prototype.onTouchEnd_ = function(e) {
  this.isTouching = false;
};

module.exports = TouchPanner;

},{"./three-math.js":9,"./util.js":11}],11:[function(_dereq_,module,exports){
/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var Util = window.Util || {};

Util.MIN_TIMESTEP = 0.001;
Util.MAX_TIMESTEP = 1;

Util.clamp = function(value, min, max) {
  return Math.min(Math.max(min, value), max);
};

Util.isIOS = function() {
  return /iPad|iPhone|iPod/.test(navigator.platform);
};

Util.isFirefoxAndroid = function() {
  return navigator.userAgent.indexOf('Firefox') !== -1 && navigator.userAgent.indexOf('Android') !== -1;
}

// Helper method to validate the time steps of sensor timestamps.
Util.isTimestampDeltaValid = function(timestampDeltaS) {
  if (isNaN(timestampDeltaS)) {
    return false;
  }
  if (timestampDeltaS <= Util.MIN_TIMESTEP) {
    return false;
  }
  if (timestampDeltaS > Util.MAX_TIMESTEP) {
    return false;
  }
  return true;
}

module.exports = Util;

},{}],12:[function(_dereq_,module,exports){
/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var CardboardHMDVRDevice = _dereq_('./cardboard-hmd-vr-device.js');
//var OrientationPositionSensorVRDevice = require('./orientation-position-sensor-vr-device.js');
var FusionPositionSensorVRDevice = _dereq_('./fusion-position-sensor-vr-device.js');
var MouseKeyboardPositionSensorVRDevice = _dereq_('./mouse-keyboard-position-sensor-vr-device.js');
// Uncomment to add positional tracking via webcam.
//var WebcamPositionSensorVRDevice = require('./webcam-position-sensor-vr-device.js');
var HMDVRDevice = _dereq_('./base.js').HMDVRDevice;
var PositionSensorVRDevice = _dereq_('./base.js').PositionSensorVRDevice;

function WebVRPolyfill() {
  this.devices = [];

  if (!this.isWebVRAvailable()) {
    this.enablePolyfill();
  }
}

WebVRPolyfill.prototype.isWebVRAvailable = function() {
  return ('getVRDevices' in navigator) || ('mozGetVRDevices' in navigator);
};


WebVRPolyfill.prototype.enablePolyfill = function() {
  // Initialize our virtual VR devices.
  if (this.isCardboardCompatible()) {
    this.devices.push(new CardboardHMDVRDevice());
  }

  // Polyfill using the right position sensor.
  if (this.isMobile()) {
    //this.devices.push(new OrientationPositionSensorVRDevice());
    this.devices.push(new FusionPositionSensorVRDevice());
  } else {
    if (!WebVRConfig.MOUSE_KEYBOARD_CONTROLS_DISABLED) {
      this.devices.push(new MouseKeyboardPositionSensorVRDevice());
    }
    // Uncomment to add positional tracking via webcam.
    //this.devices.push(new WebcamPositionSensorVRDevice());
  }

  // Provide navigator.getVRDevices.
  navigator.getVRDevices = this.getVRDevices.bind(this);

  // Provide the CardboardHMDVRDevice and PositionSensorVRDevice objects.
  window.HMDVRDevice = HMDVRDevice;
  window.PositionSensorVRDevice = PositionSensorVRDevice;
};

WebVRPolyfill.prototype.getVRDevices = function() {
  var devices = this.devices;
  return new Promise(function(resolve, reject) {
    try {
      resolve(devices);
    } catch (e) {
      reject(e);
    }
  });
};

/**
 * Determine if a device is mobile.
 */
WebVRPolyfill.prototype.isMobile = function() {
  return /Android/i.test(navigator.userAgent) ||
      /iPhone|iPad|iPod/i.test(navigator.userAgent);
};

WebVRPolyfill.prototype.isCardboardCompatible = function() {
  // For now, support all iOS and Android devices.
  // Also enable the WebVRConfig.FORCE_VR flag for debugging.
  return this.isMobile() || WebVRConfig.FORCE_ENABLE_VR;
};

module.exports = WebVRPolyfill;

},{"./base.js":1,"./cardboard-hmd-vr-device.js":2,"./fusion-position-sensor-vr-device.js":4,"./mouse-keyboard-position-sensor-vr-device.js":6}]},{},[5]);

},{}],41:[function(require,module,exports){
module.exports={
  "name": "aframe-core",
  "version": "0.1.6",
  "homepage": "https://github.com/aframevr/aframe-core",
  "license": "MIT",
  "main": "src/index.js",
  "dependencies": {
    "debug": "^2.2.0",
    "document-register-element": "^0.5.2",
    "es6-promise": "^3.0.2",
    "object-assign": "^4.0.1",
    "present": "0.0.6",
    "request-interval": "^1.0.0",
    "style-attr": "^1.0.1",
    "three-dev": "^0.74.0-beta8",
    "tween.js": "^15.0.0",
    "webvr-polyfill": "github:borismus/webvr-polyfill#3f47796"
  },
  "devDependencies": {
    "browserify": "^11.0.1",
    "browserify-css": "^0.8.2",
    "budo": "^7.0.2",
    "chai-shallow-deep-equal": "^1.3.0",
    "exorcist": "^0.4.0",
    "gh-pages": "^0.4.0",
    "husky": "^0.10.1",
    "karma": "^0.13.15",
    "karma-browserify": "^4.4.0",
    "karma-chai-shallow-deep-equal": "0.0.4",
    "karma-env-preprocessor": "^0.1.1",
    "karma-firefox-launcher": "^0.1.6",
    "karma-mocha": "^0.2.0",
    "karma-mocha-reporter": "^1.1.0",
    "karma-sinon-chai": "^1.1.0",
    "mocha": "^2.3.3",
    "mozilla-download": "^1.0.5",
    "replace": "^0.3.0",
    "semistandard": "^7.0.2",
    "snazzy": "^2.0.1",
    "uglifyjs": "^2.4.10"
  },
  "scripts": {
    "start": "npm run dev",
    "dev": "npm run build && budo src/index.js:build/aframe-core.js --debug --verbose --port 9001 --onupdate 'semistandard -v $(git ls-files \"*.js\") | snazzy' -- ./src/index.js -s 'aframe-core'",
    "browserify": "browserify ./src/index.js -s 'aframe-core'",
    "build": "mkdir -p build/ && npm run browserify -- --debug -o build/aframe-core.js",
    "dist": "rm -rf dist/ && mkdir -p dist/ && npm run dist:js",
    "dist:js": "npm run browserify -s -- --debug | exorcist dist/aframe-core.js.map > dist/aframe-core.js && uglifyjs dist/aframe-core.js -c warnings=false -m -o dist/aframe-core.min.js",
    "preghpages": "npm run dist && rm -rf gh-pages && mkdir -p gh-pages && cp -r {.nojekyll,dist,lib,examples,style,index.html} gh-pages/. && git checkout dist/ && replace 'build/aframe-core.js' 'dist/aframe-core.min.js' gh-pages/ -r --silent",
    "ghpages": "node ./scripts/gh-pages",
    "gh-pages": "npm run ghpages",
    "version": "npm run dist",
    "release:bump": "npm version patch --preminor && git commit -a -C HEAD --amend",
    "release:push": "npm login && npm publish && git push --follow-tags",
    "test": "karma start ./tests/karma.conf.js",
    "test:ci": "TEST_ENV=ci karma start ./tests/karma.conf.js --single-run",
    "lint": "semistandard -v $(git ls-files '*.js') | snazzy",
    "precommit": "npm run lint"
  },
  "repository": {
    "type": "git",
    "url": "git+https://github.com/aframevr/aframe-core.git"
  },
  "bugs": {
    "url": "https://github.com/aframevr/aframe-core/issues"
  },
  "semistandard": {
    "ignore": [
      "dist/**",
      "examples/_js/**",
      "lib/vendor/**",
      "src/shaders/**"
    ]
  },
  "browserify": {
    "transform": [
      "browserify-css"
    ]
  },
  "browserify-css": {
    "minify": true
  },
  "engines": {
    "node": ">= 0.12.7",
    "npm": ">= 2.12.1"
  },
  "gitHead": "b951d8d5de537fa75443587bff979a7fd9427b6b",
  "description": "> `aframe-core` has merged into [aframe dev branch](https://github.com/aframevr/aframe/tree/dev) and all development has moved to the [aframe repo](https://github.com/aframevr/aframe). This repository will be removed later.",
  "_id": "aframe-core@0.1.6",
  "_shasum": "fcb04280ee32b62f276013c9238022ac933f8546",
  "_from": "aframe-core@0.1.6",
  "_npmVersion": "2.11.2",
  "_nodeVersion": "0.12.6",
  "_npmUser": {
    "name": "ngokevin",
    "email": "me@ngokevin.com"
  },
  "dist": {
    "shasum": "fcb04280ee32b62f276013c9238022ac933f8546",
    "tarball": "http://registry.npmjs.org/aframe-core/-/aframe-core-0.1.6.tgz"
  },
  "maintainers": [
    {
      "name": "caseyyee",
      "email": "caseyyee.ca@gmail.com"
    },
    {
      "name": "cvan",
      "email": "hearcomestreble@gmail.com"
    },
    {
      "name": "dmarcos",
      "email": "diego.marcos@gmail.com"
    },
    {
      "name": "mozvr",
      "email": "cvan@mozilla.com"
    },
    {
      "name": "ngokevin",
      "email": "me@ngokevin.com"
    }
  ],
  "_npmOperationalInternal": {
    "host": "packages-13-west.internal.npmjs.com",
    "tmp": "tmp/aframe-core-0.1.6.tgz_1457747622022_0.8922319989651442"
  },
  "directories": {},
  "_resolved": "https://registry.npmjs.org/aframe-core/-/aframe-core-0.1.6.tgz"
}

},{}],42:[function(require,module,exports){
var registerComponent = require('../core/component').registerComponent;
var THREE = require('../../lib/three');

module.exports.Component = registerComponent('camera', {
  schema: {
    far: { default: 10000 },
    fov: { default: 80, min: 0 },
    near: { default: 0.5, min: 0 }
  },

  /**
   * Initializes three.js camera, adding it to the entity.
   * Adds a reference from the scene to this entity as the camera.
   */
  init: function () {
    var camera = this.camera = new THREE.PerspectiveCamera();
    var el = this.el;
    el.object3D.add(camera);
    el.sceneEl.cameraEl = el;
  },

  /**
   * Updates three.js camera.
   */
  update: function () {
    var data = this.data;
    var camera = this.camera;
    camera.aspect = data.aspect || (window.innerWidth / window.innerHeight);
    camera.far = data.far;
    camera.fov = data.fov;
    camera.near = data.near;
    camera.updateProjectionMatrix();
  }
});

},{"../../lib/three":30,"../core/component":68}],43:[function(require,module,exports){
var registerComponent = require('../core/component').registerComponent;
var utils = require('../utils/');

module.exports.Component = registerComponent('cursor', {
  schema: {
    timeout: { default: 1500, min: 0 },
    maxDistance: { default: 5, min: 0 },
    fuse: { default: false }
  },

  dependencies: [ 'raycaster' ],

  init: function () {
    this.raycaster = this.el.components.raycaster;
    // The cursor defaults to fuse in mobile environments
    this.schema.fuse.default = utils.isMobile();
    this.attachEventListeners();
  },

  attachEventListeners: function () {
    var el = this.el;
    var canvas = el.sceneEl.canvas;

    canvas.addEventListener('mousedown', this.onMouseDown.bind(this));
    canvas.addEventListener('mouseup', this.onMouseUp.bind(this));

    el.addEventListener('intersection', this.onIntersection.bind(this));
    el.addEventListener('intersectioncleared', this.onIntersectionCleared.bind(this));
  },

  onMouseDown: function (evt) {
    this.emit('mousedown');
    this.mouseDownEl = this.intersectedEl;
  },

  onMouseUp: function () {
    this.emit('mouseup');
    if (this.data.fuse) { return; }
    if (!this.intersectedEl) { return; }
    if (this.mouseDownEl === this.intersectedEl) {
      this.emit('click');
    }
  },

  emit: function (evt) {
    var intersectedEl = this.intersectedEl;
    this.el.emit(evt);
    if (intersectedEl) { intersectedEl.emit(evt); }
  },

  emitter: function (evt) {
    return function () {
      this.emit(evt);
    }.bind(this);
  },

  onIntersection: function (evt) {
    var self = this;
    var data = this.data;
    var el = evt.detail.el;
    var distance = evt.detail.distance;
    if (this.intersectedEl === el) { return; }
    if (distance >= this.data.maxDistance) { return; }
    this.intersectedEl = el;
    el.addState('hovered');
    el.emit('mouseenter');
    this.el.addState('hovering');
    if (data.timeout === 0) { return; }
    if (!data.fuse) { return; }
    this.el.addState('fusing');
    this.fuseTimeout = setTimeout(fuse, data.timeout);
    function fuse () {
      self.el.removeState('fusing');
      self.emit('click');
    }
  },

  onIntersectionCleared: function (evt) {
    var el = evt.detail.el;
    if (!el || !this.intersectedEl) { return; }
    this.intersectedEl = null;
    el.removeState('hovered');
    el.emit('mouseleave');
    this.el.removeState('hovering');
    this.el.removeState('fusing');
    clearTimeout(this.fuseTimeout);
  }
});

},{"../core/component":68,"../utils/":73}],44:[function(require,module,exports){
var register = require('../core/component').registerComponent;
var THREE = require('../../lib/three');
var debug = require('../utils/debug');

var warn = debug('components:fog:warn');

/**
 * Fog component.
 * Applies only to the scene entity.
 */
module.exports.Component = register('fog', {
  schema: {
    color: { default: '#000' },
    density: { default: 0.00025 },
    far: { default: 1000, min: 0 },
    near: { default: 1, min: 0 },
    type: { default: 'linear', oneOf: ['linear', 'exponential'] }
  },

  update: function () {
    var data = this.data;
    var el = this.el;
    var fog = this.el.object3D.fog;

    if (!el.isScene) {
      warn('Fog component can only be applied to <a-scene>');
      return;
    }

    // (Re)create fog if fog doesn't exist or fog type changed.
    if (!fog || data.type !== fog.name) {
      el.object3D.fog = getFog(data);
      el.updateMaterials();
      return;
    }

    // Fog data changed. Update fog.
    Object.keys(this.schema).forEach(function (key) {
      var value = data[key];
      if (key === 'color') { value = new THREE.Color(value); }
      fog[key] = value;
    });
  },

  /**
   * Remove fog on remove (callback).
   */
  remove: function () {
    var fog = this.el.object3D.fog;
    if (fog) {
      fog.density = 0;
      fog.far = 0;
      fog.near = 0;
    }
  }
});

/**
 * Creates a fog object. Sets fog.name to be able to detect fog type changes.
 *
 * @param {object} data - Fog data.
 * @returns {object} fog
 */
function getFog (data) {
  var fog;
  if (data.type === 'exponential') {
    fog = new THREE.FogExp2(data.color, data.density);
  } else {
    fog = new THREE.Fog(data.color, data.near, data.far);
  }
  fog.name = data.type;
  return fog;
}

},{"../../lib/three":30,"../core/component":68,"../utils/debug":72}],45:[function(require,module,exports){
var debug = require('../utils/debug');
var registerComponent = require('../core/component').registerComponent;
var THREE = require('../../lib/three');
var utils = require('../utils');

var DEFAULT_RADIUS = 1;
var helperMatrix = new THREE.Matrix4();
var rad = THREE.Math.degToRad;
var warn = debug('components:geometry:warn');

/**
 * Geometry component. Combined with material component to make a mesh in 3D object.
 *
 * @param {number} [arc=360] -
 *   Used by torus. A central angle that determines arc length of the torus. In degrees.
 * @param {number} [depth=2] - Used by box. Depth of the sides on the Z axis.
 * @param {number} [height=2] -
 *   Used by box, cylinder, plane. Height of the sides on the Y axis.
 * @param {bool} [openEnded=false] - Used by cylinder.
 * @param {number} [p=2] - Used by torusKnot. Coprime of q.
 * @param {number} [primitive=null] - type of shape (e.g., box, sphere).
 * @param {number} [q=3] - Used by torusKnot. Coprime of p.
 * @param {number} [radius=1] - Used by circle, cylinder, ring, sphere, torus, torusKnot.
 * @param {number} [radiusBottom=1] - Used by cylinder.
 * @param {number} [radiusInner=0.8] - Used by ring.
 * @param {number} [radiusOuter=1.2] - Used by ring.
 * @param {number} [radiusTop=1] - Used by cylinder.
 * @param {number} [radiusTube=0.2] - Used by torus. Tube radius.
 * @param {number} [scaleHeight=1] - Used by torusKnot.
 * @param {number} [segments=8] - Used by circle. Number of segments.
 * @param {number} [segmentsHeight=18] - Used by cylinder, sphere. Number of segments.
 * @param {number} [segmentsPhi=8] - Used by ring.
 * @param {number} [segmentsRadial=36] - Used by cylinder. Number of segments.
 * @param {number} [segmentsTheta=8] -
 *   Used by ring. Number of segments. A higher number means the ring will be more round.
 *   Minimum is 3.
 * @param {number} [segmentsTubular=8] - Used by torus, torusKnot. Number of segments.
 * @param {number} [segmentsWidth=36] - Used by sphere.
 * @param {number} [thetaLength=360] - Used by circle, cylinder, ring. In degrees.
 * @param {number} [thetaStart=0] - Used by circle, cylinder, ring. In degrees.
 * @param {string} translate -
 *   Defined as a coordinate (e.g., `-1 0 5`) that translates geometry vertices. Useful for
 *   effectively changing the pivot point.
 * @param {number} [width=2] - Used by box, plane.
 */
module.exports.Component = registerComponent('geometry', {
  schema: {
    arc: { default: 360, if: { primitive: ['torus'] } },
    depth: { default: 2, min: 0, if: { primitive: ['box'] } },
    height: { default: 2, min: 0, if: { primitive: ['box', 'plane'] } },
    openEnded: { default: false, if: { primitive: ['cylinder'] } },
    p: { default: 2, if: { primitive: ['torusKnot'] } },
    translate: { default: { x: 0, y: 0, z: 0 } },
    primitive: {
      default: '',
      oneOf: ['', 'box', 'circle', 'cylinder', 'plane',
              'ring', 'sphere', 'torus', 'torusKnot'] },
    q: { default: 3, if: { primitive: ['torusKnot'] } },
    radius: { default: DEFAULT_RADIUS, min: 0, if: { primitive: ['circle', 'cylinder', 'sphere', 'torus', 'torusKnot'] } },
    radiusBottom: { default: DEFAULT_RADIUS, min: 0, if: { primitive: ['cylinder'] } },
    radiusInner: { default: 0.8, min: 0, if: { primitive: ['ring'] } },
    radiusOuter: { default: 1.2, min: 0, if: { primitive: ['ring'] } },
    radiusTop: { default: DEFAULT_RADIUS, if: { primitive: ['cylinder'] } },
    radiusTubular: { default: 0.2, min: 0, if: { primitive: ['torus'] } },
    scaleHeight: { default: 1, min: 0, if: { primitive: ['torusKnot'] } },
    segments: { default: 8, min: 0, if: { primitive: ['circle'] } },
    segmentsHeight: { default: 18, min: 0, if: { primitive: ['cylinder', 'sphere'] } },
    segmentsPhi: { default: 8, min: 0, if: { primitive: ['ring'] } },
    segmentsRadial: { default: 36, min: 0, if: { primitive: ['cylinder'] } },
    segmentsTheta: { default: 8, min: 0, if: { primitive: ['ring'] } },
    segmentsTubular: { default: 8, min: 0, if: { primitive: ['torus', 'torusKnot'] } },
    segmentsWidth: { default: 36, min: 0, if: { primitive: ['sphere'] } },
    thetaLength: { default: 360, min: 0, if: { primitive: ['circle', 'cylinder', 'ring'] } },
    thetaStart: { default: 0, if: { primitive: ['circle', 'cylinder', 'ring'] } },
    width: { default: 2, min: 0, if: { primitive: ['box', 'plane'] } }
  },

  /**
   * Creates a new geometry on every update as there's not an easy way to
   * update a geometry that would be faster than just creating a new one.
   */
  update: function (previousData) {
    previousData = previousData || {};
    var data = this.data;
    var currentTranslate = previousData.translate || this.schema.translate.default;
    var diff = utils.diff(previousData, data);
    var geometry = this.el.object3D.geometry;
    var geometryNeedsUpdate = !(Object.keys(diff).length === 1 && 'translate' in diff);
    var translateNeedsUpdate = !utils.deepEqual(data.translate, currentTranslate);

    if (geometryNeedsUpdate) {
      geometry = this.el.object3D.geometry = getGeometry(this.data, this.schema);
    }
    if (translateNeedsUpdate) {
      applyTranslate(geometry, data.translate, currentTranslate);
    }
  },

  /**
   * Removes geometry on remove (callback).
   */
  remove: function () {
    this.el.object3D.geometry = new THREE.Geometry();
  }
});

/**
 * Creates a three.js geometry.
 *
 * @param {object} data
 * @param {object} schema
 * @returns {object} geometry
 */
function getGeometry (data, schema) {
  switch (data.primitive) {
    case 'box': {
      return new THREE.BoxGeometry(data.width, data.height, data.depth);
    }
    case 'circle': {
      return new THREE.CircleGeometry(
        data.radius, data.segments, rad(data.thetaStart), rad(data.thetaLength));
    }
    case 'cone': {
      return new THREE.CylinderGeometry(
        data.radiusTop, data.radiusBottom, data.height,
        data.segmentsRadial, data.segmentsHeight,
        data.openEnded, rad(data.thetaStart), rad(data.thetaLength));
    }
    case 'cylinder': {
      return new THREE.CylinderGeometry(
        data.radius, data.radius, data.height,
        data.segmentsRadial, data.segmentsHeight,
        data.openEnded, rad(data.thetaStart), rad(data.thetaLength));
    }
    case 'plane': {
      return new THREE.PlaneBufferGeometry(data.width, data.height);
    }
    case 'ring': {
      return new THREE.RingGeometry(
        data.radiusInner, data.radiusOuter, data.segmentsTheta, data.segmentsPhi,
        rad(data.thetaStart), rad(data.thetaLength));
    }
    case 'sphere': {
      return new THREE.SphereGeometry(
        data.radius, data.segmentsWidth, data.segmentsHeight);
    }
    case 'torus': {
      return new THREE.TorusGeometry(
        data.radius, data.radiusTubular * 2, data.segmentsRadial, data.segmentsTubular,
        rad(data.arc));
    }
    case 'torusKnot': {
      return new THREE.TorusKnotGeometry(
        data.radius, data.radiusTubular * 2, data.segmentsRadial, data.segmentsTubular,
        data.p, data.q, data.scaleHeight);
    }
    default: {
      warn('Primitive type not supported: ' + data.primitive);
      return new THREE.Geometry();
    }
  }
}

/**
 * Translates geometry vertices.
 *
 * @param {object} geometry - three.js geometry.
 * @param {object} translate - New translation.
 * @param {object} currentTranslate - Currently applied translation.
 */
function applyTranslate (geometry, translate, currentTranslate) {
  var translation = helperMatrix.makeTranslation(
    translate.x - currentTranslate.x,
    translate.y - currentTranslate.y,
    translate.z - currentTranslate.z
  );
  geometry.applyMatrix(translation);
  geometry.verticesNeedsUpdate = true;
}

},{"../../lib/three":30,"../core/component":68,"../utils":73,"../utils/debug":72}],46:[function(require,module,exports){
require('../components/camera');
require('../components/cursor');
require('../components/fog');
require('../components/geometry');
require('../components/light');
require('../components/loader');
require('../components/look-at');
require('../components/look-controls');
require('../components/material');
require('../components/position');
require('../components/raycaster');
require('../components/rotation');
require('../components/scale');
require('../components/sound');
require('../components/visible');
require('../components/wasd-controls');

},{"../components/camera":42,"../components/cursor":43,"../components/fog":44,"../components/geometry":45,"../components/light":47,"../components/loader":48,"../components/look-at":49,"../components/look-controls":50,"../components/material":51,"../components/position":52,"../components/raycaster":53,"../components/rotation":54,"../components/scale":55,"../components/sound":56,"../components/visible":57,"../components/wasd-controls":58}],47:[function(require,module,exports){
var diff = require('../utils').diff;
var debug = require('../utils/debug');
var registerComponent = require('../core/component').registerComponent;
var THREE = require('../../lib/three');

var rad = THREE.Math.degToRad;
var warn = debug('components:light:warn');

/**
 * Light component.
 *
 * @namespace light
 * @param {number} [angle=60] - maximum extent of light from its direction,
          in degrees. For spot lights.
 * @param {string} [color=#FFF] - light color. For every light.
 * @param {number} [decay=1] - amount the light dims along the distance of the
          light. For point and spot lights.
 * @param {number} [exponent=10.0] - rapidity of falloff of light from its
          target direction. For spot lights.
 * @param {string} [groundColor=#FFF] - ground light color. For hemisphere
          lights.
 * @param {number} [intensity=1.0] - light strength. For every light except
          ambient.
 * @param {string} [type=directional] - light type (ambient, directional,
          hemisphere, point, spot).
 */
module.exports.Component = registerComponent('light', {
  schema: {
    angle: { default: 60, if: { type: ['spot'] } },
    color: { default: '#FFF' },
    groundColor: { default: '#FFF', if: { type: ['hemisphere'] } },
    decay: { default: 1, if: { type: ['point', 'spot'] } },
    distance: { default: 0.0, min: 0, if: { type: ['point', 'spot'] } },
    exponent: { default: 10.0, if: { type: ['spot'] } },
    intensity: { default: 1.0, min: 0, if: { type: ['directional', 'hemisphere', 'point', 'spot'] } },
    type: { default: 'directional',
            oneOf: ['ambient', 'directional', 'hemisphere', 'point', 'spot']
    }
  },

  /**
   * Notifies scene a light has been added to remove default lighting.
   */
  init: function () {
    var el = this.el;
    this.light = null;
    el.sceneEl.registerLight(el);
  },

  /**
   * (Re)create or update light.
   */
  update: function (oldData) {
    var data = this.data;
    var diffData = diff(data, oldData || {});
    var el = this.el;
    var light = this.light;

    // Existing light.
    if (light) {
      // Light type has changed. Recreate light.
      if ('type' in diffData) {
        var newLight = getLight(data);
        if (newLight) {
          el.object3D.remove(light);
          el.object3D.add(newLight);
          this.light = newLight;
        }
        return;
      }
      // Light type has not changed. Update light.
      Object.keys(diffData).forEach(function (key) {
        var value = data[key];
        if (['color', 'groundColor'].indexOf(key) !== -1) {
          value = new THREE.Color(value);
        }
        light[key] = value;
      });
      return;
    }

    // No light yet. Create and add light.
    this.light = getLight(data);
    if (this.light) {
      el.object3D.add(this.light);
    }
  },

  /**
   * Remove light on remove (callback).
   */
  remove: function () {
    if (this.light) { this.el.object3D.remove(this.light); }
  }
});

/**
 * Creates a new three.js light object given data object defining the light.
 *
 * @param {object} data
 */
function getLight (data) {
  var angle = data.angle;
  var color = new THREE.Color(data.color).getHex();
  var decay = data.decay;
  var distance = data.distance;
  var groundColor = new THREE.Color(data.groundColor).getHex();
  var intensity = data.intensity;
  var type = data.type;

  switch (type.toLowerCase()) {
    case 'ambient': {
      return new THREE.AmbientLight(color);
    }
    case 'directional': {
      return new THREE.DirectionalLight(color, intensity);
    }
    case 'hemisphere': {
      return new THREE.HemisphereLight(color, groundColor, intensity);
    }
    case 'point': {
      return new THREE.PointLight(color, intensity, distance, decay);
    }
    case 'spot': {
      return new THREE.SpotLight(color, intensity, distance, rad(angle), data.exponent,
                                 decay);
    }
    default: {
      warn('%s is not a valid light type. ' +
           'Choose from ambient, directional, hemisphere, point, spot.', type);
    }
  }
}

},{"../../lib/three":30,"../core/component":68,"../utils":73,"../utils/debug":72}],48:[function(require,module,exports){
var debug = require('../utils/debug');
var registerComponent = require('../core/component').registerComponent;
var parseUrl = require('../utils/src-loader').parseUrl;
var THREE = require('../../lib/three');

var warn = debug('components:loader:warn');

module.exports.Component = registerComponent('loader', {
  dependencies: [ 'material' ],

  schema: {
    src: { default: '' },
    format: {
      default: 'obj',
      oneOf: ['obj', 'collada']
    }
  },

  update: function () {
    var el = this.el;
    var data = this.data;
    var model = this.model;
    var url = parseUrl(data.src);
    var format = data.format;
    if (model) { el.object3D.remove(model); }
    if (!url) {
      warn('Model URL not provided');
      return;
    }
    switch (format) {
      case 'obj':
        this.loadObj(url);
        break;
      case 'collada':
        this.loadCollada(url);
        break;
      default:
        warn('Model format not supported');
    }
  },

  loadObj: function (url) {
    var self = this;
    var el = this.el;
    var loader = new THREE.OBJLoader();
    loader.load(url, function (object) {
      self.model = object;
      self.applyMaterial();
      el.object3D.add(object);
    });
  },

  applyMaterial: function () {
    var material = this.el.components.material.material;
    if (!this.model) { return; }
    this.model.traverse(function (child) {
      if (child instanceof THREE.Mesh) {
        child.material = material;
      }
    });
  },

  loadCollada: function (url) {
    var self = this;
    var el = this.el;
    var loader = new THREE.ColladaLoader();
    loader.options.convertUpAxis = true;
    loader.load(url, function (collada) {
      self.model = collada.scene;
      el.object3D.add(collada.scene);
    });
  }
});

},{"../../lib/three":30,"../core/component":68,"../utils/debug":72,"../utils/src-loader":74}],49:[function(require,module,exports){
var debug = require('../utils/debug');
var coordinates = require('../utils/coordinates');
var registerComponent = require('../core/component').registerComponent;
var THREE = require('../../lib/three');

var warn = debug('components:look-at:warn');
var isCoordinate = coordinates.isCoordinate;

/**
 * Look-at component.
 * Modifies rotation to either track another entity OR do a one-time turn towards a position
 * vector.
 *
 * If tracking an object via setting the component value via a selector, look-at will register
 * a behavior to the scene to update rotation on every tick.
 *
 * Examples:
 *
 * look-at="#the-mirror"
 * look-at="0 5 -2"
 *
 * @param Look-at either takes a target selector pointing to another object or a
 *        position.
 * @member {object} target3D - object3D of targeted element that look-at is currently
           tracking.
 * @member {object} vector - Helper vector to do matrix transformations.
 */
module.exports.Component = registerComponent('look-at', {
  init: function () {
    this.target3D = null;
    this.vector = new THREE.Vector3();
  },

  /**
   * If tracking an object, this will be called on every tick.
   * If looking at a position vector, this will only be called once (until further updates).
   */
  update: function () {
    var self = this;
    var data = self.data;
    var position = data.position;
    var object3D = self.el.object3D;
    var target3D = self.target3D;
    var targetEl;
    var targetSelector = data.targetSelector;

    // Track target object position. Depends on parent object keeping global transforms up
    // to state with updateMatrixWorld(). In practice, this is handled by the renderer.
    if (target3D) {
      return object3D.lookAt(self.vector.setFromMatrixPosition(target3D.matrixWorld));
    }

    // Query for the element, grab its object3D, then register a behavior on the scene to
    // track the target on every tick.
    if (targetSelector) {
      targetEl = document.querySelector(targetSelector);
      if (!targetEl) {
        warn('"' + targetSelector + '" does not point to a valid entity to look-at');
        return;
      }
      if (!targetEl.object3D) {
        return targetEl.addEventListener('loaded', function () {
          self.beginTracking(targetEl);
        });
      }
      return self.beginTracking(targetEl);
    }

    // Look at a position.
    if (position) {
      object3D.lookAt(new THREE.Vector3(position.x, position.y, position.z));
      return;
    }

    // No longer looking at anything (i.e., look-at="").
    if (!position && !targetSelector) { return self.remove(); }
  },

  /**
   * Remove follow behavior on remove (callback).
   */
  remove: function () {
    this.el.sceneEl.removeBehavior(this);
  },

  beginTracking: function (targetEl) {
    this.target3D = targetEl.object3D;
    this.el.sceneEl.addBehavior(this);
  },

  /**
   * Determine whether attribute value is a target selector or a position.
   * Parse the attribute value if it is a position.
   *
   * @param {string} value - HTML attribute of component.
   * @returns {object}
   */
  parse: function (value) {
    if (!value) {
      return {
        position: null,
        targetSelector: null
      };
    }
    // Check if value is a position. Need to match digits since a target selector could have
    // three values as well (e.g., look-at="#el .el .box").
    if (isCoordinate(value)) {
      return {
        position: coordinates.parse(value),
        targetSelector: null
      };
    }
    return {
      position: null,
      targetSelector: value
    };
  },

  stringify: coordinates.componentMixin.stringify
});

},{"../../lib/three":30,"../core/component":68,"../utils/coordinates":71,"../utils/debug":72}],50:[function(require,module,exports){
var registerComponent = require('../core/component').registerComponent;
var THREE = require('../../lib/three');

// To avoid recalculation at every mouse movement tick
var PI_2 = Math.PI / 2;

module.exports.Component = registerComponent('look-controls', {
  dependencies: ['position', 'rotation'],

  schema: {
    enabled: { default: true }
  },

  init: function () {
    var scene = this.el.sceneEl;
    this.setupMouseControls();
    this.setupHMDControls();
    this.attachEventListeners();
    scene.addBehavior(this);
    this.previousPosition = new THREE.Vector3();
    this.deltaPosition = new THREE.Vector3();
  },

  setupMouseControls: function () {
    this.canvasEl = document.querySelector('a-scene').canvas;
    // The canvas where the scene is painted
    this.mouseDown = false;
    this.pitchObject = new THREE.Object3D();
    this.yawObject = new THREE.Object3D();
    this.yawObject.position.y = 10;
    this.yawObject.add(this.pitchObject);
  },

  setupHMDControls: function () {
    this.dolly = new THREE.Object3D();
    this.euler = new THREE.Euler();
    this.controls = new THREE.VRControls(this.dolly);
    this.zeroQuaternion = new THREE.Quaternion();
  },

  attachEventListeners: function () {
    var canvasEl = document.querySelector('a-scene').canvas;

    // Mouse Events
    canvasEl.addEventListener('mousedown', this.onMouseDown.bind(this), true);
    canvasEl.addEventListener('mousemove', this.onMouseMove.bind(this), true);
    canvasEl.addEventListener('mouseup', this.releaseMouse.bind(this), true);
    canvasEl.addEventListener('mouseout', this.releaseMouse.bind(this), true);

    // Touch events
    canvasEl.addEventListener('touchstart', this.onTouchStart.bind(this));
    canvasEl.addEventListener('touchmove', this.onTouchMove.bind(this));
    canvasEl.addEventListener('touchend', this.onTouchEnd.bind(this));
  },

  update: function () {
    if (!this.data.enabled) { return; }
    this.controls.update();
    this.updateOrientation();
    this.updatePosition();
  },

  updateOrientation: (function () {
    var hmdEuler = new THREE.Euler();
    hmdEuler.order = 'YXZ';
    return function () {
      var pitchObject = this.pitchObject;
      var yawObject = this.yawObject;
      var hmdQuaternion = this.calculateHMDQuaternion();
      hmdEuler.setFromQuaternion(hmdQuaternion);
      this.el.setAttribute('rotation', {
        x: THREE.Math.radToDeg(hmdEuler.x) + THREE.Math.radToDeg(pitchObject.rotation.x),
        y: THREE.Math.radToDeg(hmdEuler.y) + THREE.Math.radToDeg(yawObject.rotation.y),
        z: THREE.Math.radToDeg(hmdEuler.z)
      });
    };
  })(),

  calculateHMDQuaternion: (function () {
    var hmdQuaternion = new THREE.Quaternion();
    return function () {
      var dolly = this.dolly;
      if (!this.zeroed && !dolly.quaternion.equals(this.zeroQuaternion)) {
        this.zeroOrientation();
        this.zeroed = true;
      }
      hmdQuaternion.copy(this.zeroQuaternion).multiply(dolly.quaternion);
      return hmdQuaternion;
    };
  })(),

  updatePosition: function () {
    var el = this.el;
    var deltaPosition = this.calculateDeltaPosition();
    var currentPosition = el.getComputedAttribute('position');
    el.setAttribute('position', {
      x: currentPosition.x + deltaPosition.x,
      y: currentPosition.y + deltaPosition.y,
      z: currentPosition.z + deltaPosition.z
    });
  },

  calculateDeltaPosition: function () {
    var dolly = this.dolly;
    var deltaPosition = this.deltaPosition;
    var previousPosition = this.previousPosition;
    deltaPosition.copy(dolly.position);
    deltaPosition.sub(previousPosition);
    previousPosition.copy(dolly.position);
    return deltaPosition;
  },

  updateHMDQuaternion: (function () {
    var hmdQuaternion = new THREE.Quaternion();
    return function () {
      var dolly = this.dolly;
      this.controls.update();
      if (!this.zeroed && !dolly.quaternion.equals(this.zeroQuaternion)) {
        this.zeroOrientation();
        this.zeroed = true;
      }
      hmdQuaternion.copy(this.zeroQuaternion).multiply(dolly.quaternion);
      return hmdQuaternion;
    };
  })(),

  zeroOrientation: function () {
    var euler = new THREE.Euler();
    euler.setFromQuaternion(this.dolly.quaternion.clone().inverse());
    // Cancel out roll and pitch. We want to only reset yaw
    euler.z = 0;
    euler.x = 0;
    this.zeroQuaternion.setFromEuler(euler);
  },

  onMouseMove: function (event) {
    var pitchObject = this.pitchObject;
    var yawObject = this.yawObject;
    var previousMouseEvent = this.previousMouseEvent;

    if (!this.mouseDown || !this.data.enabled) { return; }

    var movementX = event.movementX || event.mozMovementX;
    var movementY = event.movementY || event.mozMovementY;

    if (movementX === undefined || movementY === undefined) {
      movementX = event.screenX - previousMouseEvent.screenX;
      movementY = event.screenY - previousMouseEvent.screenY;
    }
    this.previousMouseEvent = event;

    yawObject.rotation.y -= movementX * 0.002;
    pitchObject.rotation.x -= movementY * 0.002;
    pitchObject.rotation.x = Math.max(-PI_2, Math.min(PI_2, pitchObject.rotation.x));
  },

  onMouseDown: function (event) {
    this.mouseDown = true;
    this.previousMouseEvent = event;
  },

  releaseMouse: function () {
    this.mouseDown = false;
  },

  onTouchStart: function (e) {
    if (e.touches.length !== 1) { return; }
    this.touchStart = {
      x: e.touches[0].pageX,
      y: e.touches[0].pageY
    };
    this.touchStarted = true;
  },

  onTouchMove: function (e) {
    var deltaY;
    var yawObject = this.yawObject;
    if (!this.touchStarted) { return; }
    deltaY = 2 * Math.PI * (e.touches[0].pageX - this.touchStart.x) / this.canvasEl.clientWidth;
    // Limits touch orientaion to to yaw (y axis)
    yawObject.rotation.y -= deltaY * 0.5;
    this.touchStart = {
      x: e.touches[0].pageX,
      y: e.touches[0].pageY
    };
  },

  onTouchEnd: function () {
    this.touchStarted = false;
  }
});

},{"../../lib/three":30,"../core/component":68}],51:[function(require,module,exports){
/* global Promise */
var debug = require('../utils/debug');
var diff = require('../utils').diff;
var registerComponent = require('../core/component').registerComponent;
var srcLoader = require('../utils/src-loader');
var THREE = require('../../lib/three');

var CubeLoader = new THREE.CubeTextureLoader();
var error = debug('components:material:error');
var TextureLoader = new THREE.TextureLoader();
var texturePromises = {};
var warn = debug('components:material:warn');

var MATERIAL_TYPE_BASIC = 'MeshBasicMaterial';
var MATERIAL_TYPE_STANDARD = 'MeshStandardMaterial';

/**
 * Material component.
 *
 * @namespace material
 * @param {string} color - Diffuse color.
 * @param {string} envMap - To load a environment cubemap. Takes a selector
 *         to an element containing six img elements, or a comma-separated
 *         string of direct url()s.
 * @param {boolean} fog - Whether or not to be affected by fog.
 * @param {number} height - Height to render texture.
 * @param {number} metalness - Parameter for physical/standard material.
 * @param {number} opacity - [0-1].
 * @param {number} reflectivity - Parameter for physical/standard material.
 * @param {string} repeat - X and Y value for size of texture repeating
 *         (in UV units).
 * @param {number} roughness - Parameter for physical/standard material.
 * @param {string} [side=front] - Which side(s) to render (i.e., front, back,
 *         both).
 * @param {string} shader - Determines how material is shaded. Defaults to `standard`,
 *         three.js's implementation of PBR. Another option is `flat` where we use
 *         MeshBasicMaterial.
 * @param {string} src - To load a texture. takes a selector to an img/video
 *         element or a direct url().
 * @param {boolean} transparent - Whether to render transparent the alpha
 *         channel of a texture (e.g., .png).
 * @param {number} width - Width to render texture.
 */
module.exports.Component = registerComponent('material', {
  schema: {
    color: { default: '#FFF' },
    envMap: { default: '' },
    fog: { default: true },
    height: { default: 360 },
    metalness: { default: 0.0, min: 0.0, max: 1.0, if: { shader: ['standard'] } },
    opacity: { default: 1.0, min: 0.0, max: 1.0 },
    reflectivity: { default: 1.0, min: 0.0, max: 1.0, if: { shader: ['standard'] } },
    repeat: { default: '' },
    roughness: { default: 0.5, min: 0.0, max: 1.0, if: { shader: ['standard'] } },
    shader: { default: 'standard', oneOf: ['flat', 'standard'] },
    side: { default: 'front', oneOf: ['front', 'back', 'double'] },
    src: { default: '' },
    transparent: { default: false },
    width: { default: 640 }
  },

  init: function () {
    this.isLoadingEnvMap = false;
    this.material = null;
    this.textureSrc = null;
  },

  /**
   * Update or create material.
   *
   * Material type depends on shader:
   *   shader=flat - MeshBasicMaterial.
   *   shader=XXX - MeshStandardMaterial.
   *
   * @param {object|null} oldData
   */
  update: function (oldData) {
    var data = this.data;
    var material;
    var materialType = getMaterialType(data);
    var src = data.src;

    if (!oldData || getMaterialType(oldData) !== materialType) {
      material = this.createMaterial(getMaterialData(data), materialType);
    } else {
      material = this.updateMaterial(processMaterialData(diff(oldData, data)));
    }

    // Load textures and/or cubemaps.
    if (material.type === MATERIAL_TYPE_STANDARD) { this.updateEnvMap(); }
    this.updateTexture(src);
  },

  /**
   * Remove material on remove (callback).
   */
  remove: function () {
    var el = this.el;
    var defaultColor = this.schema.color.default;
    var defaultMaterial = new THREE.MeshBasicMaterial({ color: defaultColor });
    var object3D = el.object3D;
    if (object3D) { object3D.material = defaultMaterial; }
    el.sceneEl.unregisterMaterial(this.material);
  },

  /**
   * (Re)create new material. Has side-effects of setting `this.material` and updating
   * material registration in scene.
   *
   * @param {object} data - Material component data.
   * @param {object} type - Material type to create.
   * @returns {object} Material.
   */
  createMaterial: function (data, type) {
    var material;
    var sceneEl = this.el.sceneEl;
    if (this.material) {
      sceneEl.unregisterMaterial(this.material);
    }
    material = this.material = this.el.object3D.material = new THREE[type](data);
    sceneEl.registerMaterial(material);
    return material;
  },

  /**
   * Updating existing material.
   *
   * @param {object} data - Material component data.
   * @returns {object} Material.
   */
  updateMaterial: function (data) {
    var material = this.material;
    Object.keys(data).forEach(function (key) {
      material[key] = data[key];
    });
    return material;
  },

  /**
   * Handle environment cubemap. Textures are cached in texturePromises.
   */
  updateEnvMap: function () {
    var self = this;
    var material = this.material;
    var envMap = this.data.envMap;
    // Environment cubemaps.
    if (!envMap || this.isLoadingEnvMap) {
      material.envMap = null;
      material.needsUpdate = true;
      return;
    }
    this.isLoadingEnvMap = true;
    if (texturePromises[envMap]) {
      // Another material is already loading this texture. Wait on promise.
      texturePromises[envMap].then(function (cube) {
        self.isLoadingEnvMap = false;
        material.envMap = cube;
        material.needsUpdate = true;
      });
    } else {
      // Material is first to load this texture. Load and resolve texture.
      texturePromises[envMap] = new Promise(function (resolve) {
        srcLoader.validateCubemapSrc(envMap, function loadEnvMap (urls) {
          CubeLoader.load(urls, function (cube) {
            // Texture loaded.
            self.isLoadingEnvMap = false;
            material.envMap = cube;
            resolve(cube);
          });
        });
      });
    }
  },

  /*
   * Updates material texture map.
   *
   * @param {string|object} src - An <img> / <video> element or url to an image/video file.
   */
  updateTexture: function (src) {
    var data = this.data;
    var material = this.material;
    if (src) {
      if (src !== this.textureSrc) {
        // Texture added or changed.
        this.textureSrc = src;
        srcLoader.validateSrc(src, loadImage, loadVideo);
      }
    } else {
      // Texture removed.
      material.map = null;
      material.needsUpdate = true;
    }
    function loadImage (src) { loadImageTexture(material, src, data.repeat); }
    function loadVideo (src) { loadVideoTexture(material, src, data.width, data.height); }
  }
});

/**
 * Sets image texture on material as `map`.
 *
 * @param {object} material - three.js material.
 * @param {string|object} src - An <img> element or url to an image file.
 * @param {string} repeat - X and Y value for size of texture repeating (in UV units).
 */
function loadImageTexture (material, src, repeat) {
  var isEl = typeof src !== 'string';

  var onLoad = createTexture;
  var onProgress = function () {};
  var onError = function (xhr) {
    error('The URL "$s" could not be fetched (Error code: %s; Response: %s)',
          xhr.status, xhr.statusText);
  };

  if (isEl) {
    createTexture(src);
  } else {
    TextureLoader.load(src, onLoad, onProgress, onError);
  }

  function createTexture (texture) {
    if (!(texture instanceof THREE.Texture)) { texture = new THREE.Texture(texture); }
    var repeatXY;
    if (repeat) {
      repeatXY = repeat.split(' ');
      if (repeatXY.length === 2) {
        texture.wrapS = THREE.RepeatWrapping;
        texture.wrapT = THREE.RepeatWrapping;
        texture.repeat.set(parseInt(repeatXY[0], 10),
                           parseInt(repeatXY[1], 10));
      }
    }
    material.map = texture;
    texture.needsUpdate = true;
    material.needsUpdate = true;
  }
}

/**
 * Creates a video element to be used as a texture.
 *
 * @param {object} material - three.js material.
 * @param {string} src - Url to a video file.
 * @param {number} width - Width of the video.
 * @param {number} height - Height of the video.
 * @returns {Element} Video element.
 */
function createVideoEl (material, src, width, height) {
  var el = material.videoEl || document.createElement('video');
  function onError () {
    warn('The URL "$s" is not a valid image or video', src);
  }
  el.width = width;
  el.height = height;
  // Attach event listeners if brand new video element.
  if (el !== this.videoEl) {
    el.autoplay = true;
    el.loop = true;
    el.crossOrigin = true;
    el.addEventListener('error', onError, true);
    material.videoEl = el;
  }
  el.src = src;
  return el;
}

/**
 * Sets video texture on material as map.
 *
 * @param {object} material - three.js material.
 * @param {string} src - Url to a video file.
 * @param {number} width - Width of the video.
 * @param {number} height - Height of the video.
*/
function loadVideoTexture (material, src, height, width) {
  // three.js video texture loader requires a <video>.
  var videoEl = typeof src !== 'string' ? fixVideoAttributes(src) : createVideoEl(material, src, height, width);
  var texture = new THREE.VideoTexture(videoEl);
  texture.minFilter = THREE.LinearFilter;
  texture.needsUpdate = true;
  material.map = texture;
  material.needsUpdate = true;
}

/**
 * Fixes a video element's attributes to prevent developers from accidentally
 * passing the wrong attribute values to commonly misused video attributes.
 *
 * @see https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#Attributes
 * @param {Element} videoEl - Video element.
 * @returns {Element} Video element with the correct properties updated.
 */
function fixVideoAttributes (videoEl) {
  // The `<video>` element treats `loop` and `muted` as boolean attributes, but
  // of course does not with `autoplay`, `controls`, `preload` (and `crossorigin`).
  // If we get passed a `<video autoplay="false">`, let's assume the dev wanted
  // `autoplay` to be disabled.
  videoEl.autoplay = videoEl.getAttribute('autoplay') !== 'false';
  videoEl.controls = videoEl.getAttribute('controls') !== 'false';
  if (videoEl.getAttribute('preload') === 'false') {
    videoEl.preload = 'none';
  }
  return videoEl;
}

/**
 * Builds and normalize material data, normalizing stuff along the way.
 *
 * @param {object} data - Material data.
 * @returns {object} data - Processed material data.
 */
function getMaterialData (data) {
  var materialData = {
    color: data.color,
    side: data.side,
    opacity: data.opacity,
    transparent: data.transparent !== false || data.opacity < 1.0
  };
  if (getMaterialType(data) === MATERIAL_TYPE_STANDARD) {
    // Attach standard material parameters.
    materialData.metalness = data.metalness;
    materialData.reflectivity = data.reflectivity;
    materialData.roughness = data.roughness;
  }
  return processMaterialData(materialData);
}

/**
 * Necessary transforms to material data before passing to three.js.
 *
 * @param {object} data - Material data.
 * @returns {object} Processed material data.
 */
function processMaterialData (data) {
  if ('color' in data) {
    data.color = new THREE.Color(data.color);
  }
  if ('opacity' in data && data.opacity < 1) {
    data.transparent = true;
  }
  if ('side' in data) {
    data.side = getSide(data.side);
  }
  return data;
}

/**
 * Get material type based on shader.
 *
 * @param {object} Material component data.
 * @returns {string} Material type (as three.js constructor name)
 */
function getMaterialType (data) {
  return data.shader === 'flat' ? MATERIAL_TYPE_BASIC : MATERIAL_TYPE_STANDARD;
}

/**
 * Returns a three.js constant determining which material face sides to render
 * based on the side parameter (passed as a component attribute).
 *
 * @param {string} [side=front] - `front`, `back`, or `double`.
 * @returns {number} THREE.FrontSide, THREE.BackSide, or THREE.DoubleSide.
 */
function getSide (side) {
  switch (side) {
    case 'back': {
      return THREE.BackSide;
    }
    case 'double': {
      return THREE.DoubleSide;
    }
    default: {
      // Including case `front`.
      return THREE.FrontSide;
    }
  }
}

},{"../../lib/three":30,"../core/component":68,"../utils":73,"../utils/debug":72,"../utils/src-loader":74}],52:[function(require,module,exports){
var coordinatesMixin = require('../utils/coordinates').componentMixin;
var registerComponent = require('../core/component').registerComponent;
var utils = require('../utils/');

module.exports.Component = registerComponent('position', utils.extend({
  schema: {
    x: { default: 0 },
    y: { default: 0 },
    z: { default: 0 }
  },

  update: function () {
    var object3D = this.el.object3D;
    var data = this.data;
    object3D.position.set(data.x, data.y, data.z);
  }
}, coordinatesMixin));

},{"../core/component":68,"../utils/":73,"../utils/coordinates":71}],53:[function(require,module,exports){
var registerComponent = require('../core/component').registerComponent;
var requestInterval = require('request-interval');
var THREE = require('../../lib/three');

module.exports.Component = registerComponent('raycaster', {
  init: function () {
    this.raycaster = new THREE.Raycaster();
    this.intersectedEl = null;
    this.pollForHoverIntersections();
  },

  remove: function () {
    requestInterval.clear(this.pollInterval);
  },

  pollForHoverIntersections: function () {
    this.pollInterval = requestInterval(100, this.getIntersections.bind(this));
  },

  getIntersections: function () {
    var closest = this.getClosestIntersected();
    if (closest) {
      this.handleIntersection(closest);
      return;
    }
    // If we have no intersections other than the cursor itself,
    // but we still have a previously intersected element, clear it.
    if (this.intersectedEl) {
      this.clearExistingIntersection();
    }
  },

  intersect: function (objects) {
    var el = this.el;
    var raycaster = this.raycaster;
    var cursor = el.object3D;
    var parent = el.parentNode.object3D;
    var originPosition = new THREE.Vector3().setFromMatrixPosition(parent.matrixWorld);
    var cursorPosition = new THREE.Vector3().setFromMatrixPosition(cursor.matrixWorld);
    var direction = cursorPosition.sub(originPosition).normalize();
    raycaster.set(originPosition, direction);
    return raycaster.intersectObjects(objects, true);
  },

  /**
   * Returns the closest intersected object.
   *
   * @returns {Object|null}
   *   The closest intersected element that is not the cursor itself,
   *   an invisible element, or not a a-frame entity element.
   *   If no objects are intersected, `null` is returned.
   */
  getClosestIntersected: function () {
    var scene = this.el.sceneEl.object3D;
    var cursorEl = this.el;
    var intersectedObj;
    var intersectedObjs = this.intersect(scene.children);
    for (var i = 0; i < intersectedObjs.length; ++i) {
      intersectedObj = intersectedObjs[i];
      // If the intersected object is the cursor itself
      // or the object is further than the max distance
      if (intersectedObj.object.el === undefined) { continue; }
      if (intersectedObj.object.el === cursorEl) { continue; }
      if (!intersectedObj.object.visible) { continue; }
      return intersectedObj;
    }
    return null;
  },

  /**
   * Remembers the last intersected element
   */
  setExistingIntersection: function (el, distance) {
    this.intersectedEl = el;
    this.el.emit('intersection', { el: el, distance: distance });
  },

  /**
   * Emits a `mouseleave` event and clears info about the last intersection.
   */
  clearExistingIntersection: function () {
    var intersectedEl = this.intersectedEl;
    this.el.emit('intersectioncleared', { el: intersectedEl });
    this.intersectedEl = null;
  },

  handleIntersection: function (obj) {
    var el = obj.object.el;

    // A new intersection where previously a different element was
    // and now needs a mouseleave event.
    if (this.intersectedEl !== el) {
      this.clearExistingIntersection();
    }
    this.setExistingIntersection(el, obj.distance);
  }
});

},{"../../lib/three":30,"../core/component":68,"request-interval":86}],54:[function(require,module,exports){
var coordinatesMixin = require('../utils/coordinates').componentMixin;
var registerComponent = require('../core/component').registerComponent;
var THREE = require('../../lib/three');
var utils = require('../utils/');

module.exports.Component = registerComponent('rotation', utils.extend({
  schema: {
    x: { default: 0 },
    y: { default: 0 },
    z: { default: 0 }
  },

  /**
   * Updates object3D rotation.
   */
  update: function () {
    var data = this.data;
    var object3D = this.el.object3D;
    object3D.rotation.set(THREE.Math.degToRad(data.x),
                          THREE.Math.degToRad(data.y),
                          THREE.Math.degToRad(data.z));
    object3D.rotation.order = 'YXZ';
  }
}, coordinatesMixin));

},{"../../lib/three":30,"../core/component":68,"../utils/":73,"../utils/coordinates":71}],55:[function(require,module,exports){
var coordinatesMixin = require('../utils/coordinates').componentMixin;
var registerComponent = require('../core/component').registerComponent;
var utils = require('../utils/');

// Avoids triggering a zero-determinant which makes object3D matrix non-invertible.
var zeroScale = 0.00001;

module.exports.Component = registerComponent('scale', utils.extend({
  schema: {
    x: { default: 1 },
    y: { default: 1 },
    z: { default: 1 }
  },

  update: function () {
    var data = this.data;
    var object3D = this.el.object3D;
    var x = data.x === 0 ? zeroScale : data.x;
    var y = data.y === 0 ? zeroScale : data.y;
    var z = data.z === 0 ? zeroScale : data.z;
    object3D.scale.set(x, y, z);
  }
}, coordinatesMixin));

},{"../core/component":68,"../utils/":73,"../utils/coordinates":71}],56:[function(require,module,exports){
var debug = require('../utils/debug');
var diff = require('../utils').diff;
var registerComponent = require('../core/component').registerComponent;
var THREE = require('../../lib/three');

var warn = debug('components:sound:warn');

/**
 * Sound component.
 *
 * @param {bool} [autoplay=false]
 * @param {string} on
 * @param {bool} [loop=false]
 * @param {number} [volume=1]
 */
module.exports.Component = registerComponent('sound', {
  schema: {
    src: { default: '' },
    on: { default: 'click' },
    autoplay: { default: false },
    loop: { default: false },
    volume: { default: 1 }
  },

  init: function () {
    this.listener = null;
    this.sound = null;
  },

  update: function (oldData) {
    var data = this.data;
    var diffData = diff(oldData || {}, data);
    var el = this.el;
    var sound = this.sound;
    var src = data.src;
    var srcChanged = 'src' in diffData;

    // Create new sound if not yet created or changing `src`.
    if (srcChanged) {
      if (!src) {
        warn('Audio source was not specified with `src`');
        return;
      }
      sound = this.setupSound();
    }

    if (srcChanged || 'autoplay' in diffData) {
      sound.autoplay = data.autoplay;
    }

    if (srcChanged || 'loop' in diffData) {
      sound.setLoop(data.loop);
    }

    if (srcChanged || 'volume' in diffData) {
      sound.setVolume(data.volume);
    }

    if ('on' in diffData) {
      if (oldData && oldData.on) {
        el.removeEventListener(oldData.on);
      }
      el.addEventListener(data.on, this.play.bind(this));
    }

    // All sound values set. Load in `src.
    if (srcChanged) {
      sound.load(src);
    }
  },

  remove: function () {
    this.el.object3D.remove(this.sound);
  },

  /**
   * Removes current sound object, creates new sound object, adds to entity.
   *
   * @returns {object} sound
   */
  setupSound: function () {
    var el = this.el;
    var listener;
    var sound = this.sound;

    if (sound) {
      this.stop();
      el.object3D.remove(sound);
    }

    listener = this.listener = new THREE.AudioListener();
    sound = this.sound = new THREE.Audio(listener);
    el.object3D.add(sound);
    return sound;
  },

  play: function () {
    this.sound.play();
  },

  stop: function () {
    this.sound.stop();
  },

  pause: function () {
    this.sound.pause();
  }
});

},{"../../lib/three":30,"../core/component":68,"../utils":73,"../utils/debug":72}],57:[function(require,module,exports){
var registerComponent = require('../core/component').registerComponent;

/**
 * Visibility component.
 *
 * @param {bool}
 */
module.exports.Component = registerComponent('visible', {
  schema: { default: true },

  update: function () {
    this.el.object3D.visible = this.data;
  },

  parse: function (value) {
    return value !== 'false';
  },

  stringify: function (value) {
    return value.toString();
  }
});

},{"../core/component":68}],58:[function(require,module,exports){
var registerComponent = require('../core/component').registerComponent;
var THREE = require('../../lib/three');

var MAX_DELTA = 0.2;

/**
 * WASD component.
 *
 * Control your entities with the WASD keys.
 *
 * @namespace wasd-controls
 * @param {number} [easing=20] - How fast the movement decelerates. If you hold the
 * keys the entity moves and if you release it will stop. Easing simulates friction.
 * @param {number} [acceleration=65] - Determines the acceleration given
 * to the entity when pressing the keys.
 * @param {bool} [enabled=true] - To completely enable or disable the controls
 * @param {bool} [fly=false] - Determines if the direction of the movement sticks
 * to the plane where the entity started off or if there are 6 degrees of
 * freedom as a diver underwater or a plane flying.
 * @param {string} [wsAxis='z'] - The axis that the W and S keys operate on
 * @param {string} [adAxis='x'] - The axis that the A and D keys operate on
 * @param {bool} [wsInverted=false] - WS Axis is inverted
 * @param {bool} [adInverted=false] - AD Axis is inverted
 */
module.exports.Component = registerComponent('wasd-controls', {
  schema: {
    easing: { default: 20 },
    acceleration: { default: 65 },
    enabled: { default: true },
    fly: { default: false },
    wsAxis: { default: 'z', oneOf: [ 'x', 'y', 'z' ] },
    adAxis: { default: 'x', oneOf: [ 'x', 'y', 'z' ] },
    wsInverted: { default: false },
    wsEnabled: { default: true },
    adInverted: { default: false },
    adEnabled: { default: true }
  },

  init: function () {
    this.setupControls();
  },

  setupControls: function () {
    var scene = this.el.sceneEl;
    this.prevTime = Date.now();
    // To keep track of the pressed keys
    this.keys = {};
    this.velocity = new THREE.Vector3();
    this.attachEventListeners();
    scene.addBehavior(this);
  },

  update: function (previousData) {
    var data = this.data;
    var acceleration = data.acceleration;
    var easing = data.easing;
    var velocity = this.velocity;
    var time = window.performance.now();
    var delta = (time - this.prevTime) / 1000;
    var keys = this.keys;
    var movementVector;
    var adAxis = data.adAxis;
    var wsAxis = data.wsAxis;
    var adSign = data.adInverted ? -1 : 1;
    var wsSign = data.wsInverted ? -1 : 1;
    var el = this.el;
    this.prevTime = time;

    // If data has changed or FPS is too low
    // we reset the velocity
    if (previousData || delta > MAX_DELTA) {
      velocity[adAxis] = 0;
      velocity[wsAxis] = 0;
      return;
    }

    velocity[adAxis] -= velocity[adAxis] * easing * delta;
    velocity[wsAxis] -= velocity[wsAxis] * easing * delta;

    var position = el.getComputedAttribute('position');

    if (data.enabled) {
      if (data.adEnabled) {
        if (keys[65]) { velocity[adAxis] -= adSign * acceleration * delta; } // Left
        if (keys[68]) { velocity[adAxis] += adSign * acceleration * delta; } // Right
      }
      if (data.wsEnabled) {
        if (keys[87]) { velocity[wsAxis] -= wsSign * acceleration * delta; } // Up
        if (keys[83]) { velocity[wsAxis] += wsSign * acceleration * delta; } // Down
      }
    }

    movementVector = this.getMovementVector(delta);
    el.object3D.translateX(movementVector.x);
    el.object3D.translateY(movementVector.y);
    el.object3D.translateZ(movementVector.z);

    el.setAttribute('position', {
      x: position.x + movementVector.x,
      y: position.y + movementVector.y,
      z: position.z + movementVector.z
    });
  },

  attachEventListeners: function () {
    // Keyboard events
    window.addEventListener('keydown', this.onKeyDown.bind(this), false);
    window.addEventListener('keyup', this.onKeyUp.bind(this), false);
  },

  onKeyDown: function (event) {
    this.keys[event.keyCode] = true;
  },

  onKeyUp: function (event) {
    this.keys[event.keyCode] = false;
  },

  getMovementVector: (function (delta) {
    var direction = new THREE.Vector3(0, 0, 0);
    var rotation = new THREE.Euler(0, 0, 0, 'YXZ');
    return function (delta) {
      var velocity = this.velocity;
      var elRotation = this.el.getAttribute('rotation');
      direction.copy(velocity);
      direction.multiplyScalar(delta);
      if (!elRotation) { return direction; }
      if (!this.data.fly) { elRotation.x = 0; }
      rotation.set(THREE.Math.degToRad(elRotation.x),
                   THREE.Math.degToRad(elRotation.y), 0);
      direction.applyEuler(rotation);
      return direction;
    };
  })()
});

},{"../../lib/three":30,"../core/component":68}],59:[function(require,module,exports){
/**
 * Animation configuration options for TWEEN.js animations.
 * Used by `<a-animation>`.
 */
var TWEEN = require('tween.js');

var DIRECTIONS = {
  alternate: 'alternate',
  alternateReverse: 'alternate-reverse',
  normal: 'normal',
  reverse: 'reverse'
};

var EASING_FUNCTIONS = {
  'linear': TWEEN.Easing.Linear.None,

  'ease': TWEEN.Easing.Cubic.InOut,
  'ease-in': TWEEN.Easing.Cubic.In,
  'ease-out': TWEEN.Easing.Cubic.Out,
  'ease-in-out': TWEEN.Easing.Cubic.InOut,

  'ease-cubic': TWEEN.Easing.Cubic.In,
  'ease-in-cubic': TWEEN.Easing.Cubic.In,
  'ease-out-cubic': TWEEN.Easing.Cubic.Out,
  'ease-in-out-cubic': TWEEN.Easing.Cubic.InOut,

  'ease-quad': TWEEN.Easing.Quadratic.InOut,
  'ease-in-quad': TWEEN.Easing.Quadratic.In,
  'ease-out-quad': TWEEN.Easing.Quadratic.Out,
  'ease-in-out-quad': TWEEN.Easing.Quadratic.InOut,

  'ease-quart': TWEEN.Easing.Quartic.InOut,
  'ease-in-quart': TWEEN.Easing.Quartic.In,
  'ease-out-quart': TWEEN.Easing.Quartic.Out,
  'ease-in-out-quart': TWEEN.Easing.Quartic.InOut,

  'ease-quint': TWEEN.Easing.Quintic.InOut,
  'ease-in-quint': TWEEN.Easing.Quintic.In,
  'ease-out-quint': TWEEN.Easing.Quintic.Out,
  'ease-in-out-quint': TWEEN.Easing.Quintic.InOut,

  'ease-sine': TWEEN.Easing.Sinusoidal.InOut,
  'ease-in-sine': TWEEN.Easing.Sinusoidal.In,
  'ease-out-sine': TWEEN.Easing.Sinusoidal.Out,
  'ease-in-out-sine': TWEEN.Easing.Sinusoidal.InOut,

  'ease-expo': TWEEN.Easing.Exponential.InOut,
  'ease-in-expo': TWEEN.Easing.Exponential.In,
  'ease-out-expo': TWEEN.Easing.Exponential.Out,
  'ease-in-out-expo': TWEEN.Easing.Exponential.InOut,

  'ease-circ': TWEEN.Easing.Circular.InOut,
  'ease-in-circ': TWEEN.Easing.Circular.In,
  'ease-out-circ': TWEEN.Easing.Circular.Out,
  'ease-in-out-circ': TWEEN.Easing.Circular.InOut,

  'ease-elastic': TWEEN.Easing.Elastic.InOut,
  'ease-in-elastic': TWEEN.Easing.Elastic.In,
  'ease-out-elastic': TWEEN.Easing.Elastic.Out,
  'ease-in-out-elastic': TWEEN.Easing.Elastic.InOut,

  'ease-back': TWEEN.Easing.Back.InOut,
  'ease-in-back': TWEEN.Easing.Back.In,
  'ease-out-back': TWEEN.Easing.Back.Out,
  'ease-in-out-back': TWEEN.Easing.Back.InOut,

  'ease-bounce': TWEEN.Easing.Bounce.InOut,
  'ease-in-bounce': TWEEN.Easing.Bounce.In,
  'ease-out-bounce': TWEEN.Easing.Bounce.Out,
  'ease-in-out-bounce': TWEEN.Easing.Bounce.InOut
};

var FILLS = {
  backwards: 'backwards',
  both: 'both',
  forwards: 'forwards',
  none: 'none'
};

var REPEATS = {
  indefinite: 'indefinite'
};

var DEFAULTS = {
  attribute: 'rotation',
  begin: '0',
  dur: 1000,
  easing: 'ease',
  direction: DIRECTIONS.normal,
  fill: FILLS.forwards,
  from: undefined,
  repeat: 0,
  to: undefined
};

module.exports.defaults = DEFAULTS;
module.exports.directions = DIRECTIONS;
module.exports.easingFunctions = EASING_FUNCTIONS;
module.exports.fills = FILLS;
module.exports.repeats = REPEATS;

},{"tween.js":90}],60:[function(require,module,exports){
var ANode = require('./a-node');
var coerce = require('../utils/').coerce;
var constants = require('../constants/animation');
var coordinates = require('../utils/').coordinates;
var registerElement = require('./a-register-element').registerElement;
var TWEEN = require('tween.js');
var utils = require('../utils/');

var DEFAULTS = constants.defaults;
var DIRECTIONS = constants.directions;
var EASING_FUNCTIONS = constants.easingFunctions;
var FILLS = constants.fills;
var REPEATS = constants.repeats;
var isCoordinate = coordinates.isCoordinate;

/**
 * Animation element that applies Tween animation to parent element (entity).
 * Takes after the Web Animations spec.
 *
 * @namespace <a-animation>
 * @param {string} attribute -
 *   Entity attribute to animate. Can be a component name (e.g., `position`) if the component
 *   is set via a single value. Or can be a dot-separated componentName.componentAttr to
 *   animate a single component attribute (e.g., `light.intensity`, `material.opacity`).
 * @param {number|string} begin -
 *   Either milliseconds to delay or an event name to wait upon before starting animation.
 * @param {string} direction -
 *   Direction of the animation between from and to.
 *     - alternate: Even iterations played as specified, odd iterations played in reverse
 *                direction from way specified.
 *     - alternate-reverse: Even iterations are played in the reverse direction from way
 *                        specified, odd iterations played as specified.
 *     - normal: All iterations are played as specified.
 *     - reverse: All iterations are played in reverse direction from way specified.
 * @param {number} dur - How long to run the animation in milliseconds.
 * @param {string} easing -
 *   Easing function of animation (e.g., ease, ease-in, ease-in-out, ease-out, linear).
 * @param {string} [fill=forwards] -
 *   Determines effect of animation when not in play.
 *     - backwards: Before animation, set initial value to `from`.
 *     - both: Before animation, backwards fill. After animation, forwards fill.
 *     - forwards: After animation, value will stay at `to`.
 *     - none: Animation has no effect when not in play.
 * @param {number} from - Start value. Defaults to the entity's current value for that attr.
 * @param {number|string} repeat -
 *   How the animation should repeat (e.g., a number or `indefinite`).
 * @param {number} to - End value.
 * @member {number} count -
 *   Decrementing counter for how many cycles of animations left to run.
 * @member {Element} el - Entity which the animation is modifying to.
 * @member initialValue - Value before animation started. Used to restore state.
 * @member {bool} isRunning - Whether animation is currently running.
 * @member {function} partialSetAttribute -
 *   setAttribute function that is agnostic to whether we are setting an attribute value
 *   or a component attribute value. The el and the attribute names are bundled with
 *   the function.
 * @member {object} tween - tween.js object.
 */
module.exports.AAnimation = registerElement('a-animation', {
  prototype: Object.create(ANode.prototype, {
    createdCallback: {
      value: function () {
        this.isRunning = false;
        this.partialSetAttribute = function () { /* no-op */ };
        this.tween = null;
      }
    },

    attachedCallback: {
      value: function () {
        var self = this;
        var el = self.el = self.parentNode;

        if (el.isNode) {
          init();
        } else {
          // To handle elements that are not yet `<a-entity>`s (e.g., templates).
          el.addEventListener('nodeready', init.bind(self));
        }

        function init () {
          self.bindMethods();
          self.applyMixin();
          self.update();
          self.load();
        }
      }
    },

    attributeChangedCallback: {
      value: function (attr, oldVal, newVal) {
        if (!this.hasLoaded || !this.isRunning) { return; }
        this.stop();
        this.applyMixin();
        this.update();
      }
    },

    /**
     * Builds a Tween object to handle animations.
     * Uses tween.js's from, to, delay, easing, repeat, onUpdate, and onComplete.
     * Note: tween.js takes objects for its `from` and `to` values.
     *
     * @returns {object}
     */
    getTween: {
      value: function () {
        var self = this;
        var data = self.data;
        var el = self.el;
        var animationValues;
        var attribute = data.attribute;
        var begin = parseInt(data.begin, 10);
        var currentValue = el.getComputedAttribute(attribute);
        var direction = self.getDirection(data.direction);
        var easing = EASING_FUNCTIONS[data.easing];
        var fill = data.fill;
        var from;
        var repeat = data.repeat === REPEATS.indefinite ? Infinity : 0;
        var to;
        var toTemp;
        var yoyo = false;

        animationValues = getAnimationValues(el, attribute, data.from, data.to, currentValue);
        from = animationValues.from;
        to = animationValues.to;
        self.partialSetAttribute = animationValues.partialSetAttribute;

        if (self.count === undefined) {
          self.count = repeat === Infinity ? 0 : parseInt(data.repeat, 10);
        }

        if (isNaN(begin)) { begin = 0; }

        // Store initial state.
        self.initialValue = cloneValue(currentValue);

        // Handle indefinite + forwards + alternate yoyo edge-case (#405).
        if (repeat === Infinity && fill === FILLS.forwards &&
            [DIRECTIONS.alternate,
             DIRECTIONS.alternateReverse].indexOf(data.direction) !== -1) {
          yoyo = true;
        }

        // If reversing, swap from and to.
        if (direction === DIRECTIONS.reverse) {
          toTemp = to;
          to = cloneValue(from);
          from = cloneValue(toTemp);
        }

        // If fill is backwards or both, start animation at the specified from.
        if ([FILLS.backwards, FILLS.both].indexOf(fill) !== -1) {
          self.partialSetAttribute(from);
        }

        // Create Tween.
        return new TWEEN.Tween(cloneValue(from))
          .to(to, data.dur)
          .delay(begin)
          .easing(easing)
          .repeat(repeat)
          .yoyo(yoyo)
          .onUpdate(function () {
            self.partialSetAttribute(this);
          })
          .onComplete(self.onCompleted.bind(self));
      }
    },

    /**
     * Animation parameters changed. Stop current animation, get a new one, and start it.
     */
    update: {
      value: function () {
        var data = this.data;
        var begin = data.begin;
        // Cancel previous event listeners
        this.removeEventListeners(this.evt);
        this.addEventListeners(begin);
        // Store new event name.
        this.evt = begin;
        // If `begin` is a number, start the animation right away.
        if (!isNaN(begin)) {
          this.stop();
          this.start();
        }
      },
      writable: window.debug
    },

    /**
     * Callback for when a cycle of an animation is complete. Handles when to completely
     * finish the animation.
     *
     * If `repeat` is set to a value, this method is called after each repeat. Repeats are
     * handled by ending the current animation and creating a new one with `count` updated.
     * Note that this method is *not* called if repeat is set to `indefinite`.
     */
    onCompleted: {
      value: function () {
        var data = this.data;
        this.isRunning = false;
        if ([FILLS.backwards, FILLS.none].indexOf(data.fill) !== -1) {
          this.partialSetAttribute(this.initialValue);
        }
        if (this.count === 0) {
          this.count = undefined;
          this.emit('animationend');
          return;
        }
        this.isRunning = false;
        this.count--;
        this.start();
      }
    },

    start: {
      value: function () {
        if (this.isRunning) { return; }
        this.tween = this.getTween();
        this.isRunning = true;
        this.tween.start();
        this.emit('animationstart');
      },
      writable: true
    },

    stop: {
      value: function () {
        var tween = this.tween;
        if (!tween) { return; }
        tween.stop();
        this.isRunning = false;
        this.partialSetAttribute(this.initialValue);
      },
      writable: true
    },

    /**
     * Handle alternating directions. Given the current direction, calculate the next one,
     * and store the current one.
     *
     * @param {string} direction
     * @returns {string} Direction that the next individual cycle of the animation will go
     *          towards.
     */
    getDirection: {
      value: function (direction) {
        if (direction === DIRECTIONS.alternate) {
          this.prevDirection =
            this.prevDirection === DIRECTIONS.normal ? DIRECTIONS.reverse : DIRECTIONS.normal;
          return this.prevDirection;
        }
        if (direction === DIRECTIONS.alternateReverse) {
          this.prevDirection =
            this.prevDirection === DIRECTIONS.reverse ? DIRECTIONS.normal : DIRECTIONS.reverse;
          return this.prevDirection;
        }
        return direction;
      }
    },

    /**
     * Preemptive binding to attach/detach event listeners (see `update`).
     */
    bindMethods: {
      value: function () {
        this.start = this.start.bind(this);
        this.stop = this.stop.bind(this);
        this.onStateAdded = this.onStateAdded.bind(this);
        this.onStateRemoved = this.onStateRemoved.bind(this);
      }
    },

    addEventListeners: {
      value: function (evts) {
        var el = this.el;
        var start = this.start.bind(this);
        utils.splitString(evts).forEach(function (evt) {
          el.addEventListener(evt, start);
        });
        el.addEventListener('stateadded', this.onStateAdded);
        el.addEventListener('stateremoved', this.onStateRemoved);
      }
    },

    removeEventListeners: {
      value: function (evts) {
        var el = this.el;
        var start = this.start;
        utils.splitString(evts).forEach(function (evt) {
          el.removeEventListener(evt, start);
        });
        el.removeEventListener('stateadded', this.onStateAdded);
        el.removeEventListener('stateremoved', this.onStateRemoved);
      }
    },

    onStateAdded: {
      value: function (evt) {
        if (evt.detail.state === this.data.begin) { this.start(); }
      },
      writable: true
    },

    onStateRemoved: {
      value: function (evt) {
        if (evt.detail.state === this.data.begin) { this.stop(); }
      },
      writable: true
    },

    /**
     * Applies animation data from a mixin element.
     * Works the same as component mixins but reimplemented because animations
     * aren't components.
     */
    applyMixin: {
      value: function () {
        var data = {};
        var elData;
        var mixinData;
        var mixinEl;

        // Get mixin data.
        mixinEl = document.querySelector('#' + this.getAttribute('mixin'));
        mixinData = mixinEl ? utils.getElData(mixinEl, DEFAULTS) : {};

        elData = utils.getElData(this, DEFAULTS);
        utils.extend(data, DEFAULTS, mixinData, elData);
        this.data = data;
      }
    }
  })
});

function cloneValue (val) {
  return utils.extend({}, val);
}

/**
 * Deduces different animation values based on whether we are:
 *   - animating an inner attribute of a component.
 *   - animating a coordinate component.
 *   - animating a boolean.
 *   - animating a number.
 *
 * @param {Element} el
 * @param {string} attribute - Tells what to animate based on whether it is dot-separated.
 * @param {string} dataFrom - Data `from` value.
 * @param {string} dataTo - Data `to` value.
 * @param currentValue
 * @returns {object}
 *   Object with keys [from, to, partialSetAttribute].
 *     `from` and `to`
 *        Objects where key is attribute being animated and value is value.
 *     `partialSetAttribute`
 *        Closured-function that tells tween how to update the component.
 */
function getAnimationValues (el, attribute, dataFrom, dataTo, currentValue) {
  var attributeSplit = attribute.split('.');
  var coerceSchema;
  var component;
  var componentAttrName;
  var componentName;
  var from = {};
  var partialSetAttribute;
  var to = {};

  if (attributeSplit.length === 2) {
    getForComponentAttribute();
  } else if (dataTo && isCoordinate(dataTo)) {
    getForCoordinateComponent();
  } else if (['true', 'false'].indexOf(dataTo) !== -1) {
    getForBoolean();
  } else {
    getForNumber();
  }
  return {
    from: from,
    partialSetAttribute: partialSetAttribute,
    to: to
  };

  /**
   * Animating a component that has multiple attributes (e.g., geometry.width).
   */
  function getForComponentAttribute () {
    componentName = attributeSplit[0];
    componentAttrName = attributeSplit[1];
    component = el.components[componentName];
    if (!component) {
      el.setAttribute(componentName, '');
      component = el.components[componentName];
    }
    coerceSchema = component.schema;
    if (dataFrom === undefined) {  // dataFrom can be 0.
      from[attribute] = el.getComputedAttribute(componentName)[componentAttrName];
    } else {
      from[attribute] = dataFrom;
    }
    from[attribute] = coerce(from[attribute], coerceSchema, componentAttrName);
    to[attribute] = coerce(dataTo, coerceSchema, componentAttrName);
    partialSetAttribute = function (value) {
      el.setAttribute(componentName, componentAttrName, value[attribute]);
    };
  }

  /**
   * Animating a component that is an XYZ coordinate (e.g., position).
   * Will be tweening {x, y, z} all at once.
   */
  function getForCoordinateComponent () {
    from = dataFrom ? coordinates.parse(dataFrom) : currentValue;
    to = coordinates.parse(dataTo);
    partialSetAttribute = function (value) {
      el.setAttribute(attribute, value);
    };
  }

  /**
   * Animation a boolean (e.g., visible).
   * Have to convert from boolean to an integer (0 is false, > 0 is true) for tween.
   */
  function getForBoolean () {
    if (dataFrom === undefined) {
      from[attribute] = false;
    } else {
      from[attribute] = strToBool(dataFrom);
    }
    from[attribute] = boolToNum(from[attribute]);
    to[attribute] = boolToNum(strToBool(dataTo));
    partialSetAttribute = function (value) {
      el.setAttribute(attribute, !!value[attribute]);
    };
  }

  /**
   * Animating a numbered attribute (e.g., opacity).
   */
  function getForNumber () {
    if (dataFrom === undefined) {  // dataFrom can be 0.
      from[attribute] = parseFloat(el.getAttribute(attribute));
    } else {
      from[attribute] = parseFloat(dataFrom);
    }
    to[attribute] = parseFloat(dataTo);
    partialSetAttribute = function (value) {
      el.setAttribute(attribute, value[attribute]);
    };
  }
}
module.exports.getAnimationValues = getAnimationValues;

/**
 * Converts string to bool.
 *
 * @param {string} str - `true` or `false`.
 * @returns {bool}
 */
function strToBool (str) {
  if (str === 'true') { return true; }
  return false;
}

/**
 * Converts boolean to number.
 *
 * @param {bool}
 * @returns {number}
 */
function boolToNum (bool) {
  return bool ? 1 : 0;
}

},{"../constants/animation":59,"../utils/":73,"./a-node":65,"./a-register-element":66,"tween.js":90}],61:[function(require,module,exports){
/* global HTMLElement */
var re = require('./a-register-element');
var utils = require('../utils/');

var isNode = re.isNode;
var registerElement = re.registerElement;

module.exports = registerElement(
  'a-assets',
  {
    prototype: Object.create(
      HTMLElement.prototype,
      {
        attachedCallback: {
          value: function () {
            this.attachEventListeners();
          }
        },

        attachEventListeners: {
          value: function () {
            var self = this;
            var assetLoaded = this.assetLoaded.bind(this);
            this.assetsPending = 0;
            var children = this.querySelectorAll('*');
            Array.prototype.slice.call(children).forEach(countElement);

            if (!this.assetsPending) {
              assetLoaded();
            }

            function countElement (node) {
              if (!isNode(node)) { return; }
              if (!node.hasLoaded) {
                attachEventListener(node);
                self.assetsPending++;
              }
            }

            function attachEventListener (node) {
              node.addEventListener('loaded', assetLoaded);
            }
          }
        },

        assetLoaded: {
          value: function () {
            this.assetsPending--;
            if (this.assetsPending <= 0) {
              this.load();
            }
          }
        },

        load: {
          value: function () {
            // To prevent emitting the loaded event more than once.
            if (this.hasLoaded) { return; }
            this.hasLoaded = true;
            var data = { bubbles: false, detail: {} };
            utils.fireEvent(this, 'loaded', data);
          }
        }
      }
    )
  }
);

},{"../utils/":73,"./a-register-element":66}],62:[function(require,module,exports){
/* global HTMLElement */
var debug = require('../utils/debug');
var registerElement = require('./a-register-element').registerElement;

var warn = debug('core:cubemap:warn');

/**
 * Cubemap element that handles validation and exposes list of URLs.
 * Does not listen to updates.
 */
module.exports = registerElement('a-cubemap', {
  prototype: Object.create(HTMLElement.prototype, {
    /**
     * Calculates this.srcs.
     */
    attachedCallback: {
      value: function () {
        this.srcs = this.validate();
      },
      writable: window.debug
    },

    /**
     * Checks for exactly six elements with [src].
     * Does not check explicitly for <img>s in case user does not want
     * prefetching.
     *
     * @returns {Array|null} - six URLs if valid, else null.
     */
    validate: {
      value: function () {
        var elements = this.querySelectorAll('[src]');
        var i;
        var srcs = [];
        if (elements.length === 6) {
          for (i = 0; i < elements.length; i++) {
            srcs.push(elements[i].getAttribute('src'));
          }
          return srcs;
        }
        // Else if there are not six elements, throw a warning.
        warn(
          '<a-cubemap> did not contain exactly six elements each with a ' +
          '`src` attribute.');
      },
      writable: window.debug
    }
  })
});

},{"../utils/debug":72,"./a-register-element":66}],63:[function(require,module,exports){
/* global HTMLElement */
var ANode = require('./a-node');
var components = require('./component').components;
var debug = require('../utils/debug');
var re = require('./a-register-element');
var THREE = require('../../lib/three');

var isNode = re.isNode;
var log = debug('core:a-entity');
var error = debug('core:a-entity:error');
var registerElement = re.registerElement;

/**
 * Entity element definition.
 * Entities represent all elements that are part of the scene, and always have
 * a position, rotation, and scale.
 * In the entity-component system, entities are just a container of components.
 *
 * For convenience of inheriting components, the scene element inherits from
 * this prototype. When necessary, it differentiates itself by setting
 * `this.isScene`.
 *
 * @namespace Entity
 * @member {object} components - entity's currently initialized components.
 * @member {object} object3D - three.js object.
 * @member {array} states
 */
var proto = {
  defaults: {
    value: {
      position: '',
      rotation: '',
      scale: '',
      visible: ''
    }
  },

  createdCallback: {
    value: function () {
      this.states = [];
      this.components = {};
      this.object3D = new THREE.Mesh();
    }
  },

  attributeChangedCallback: {
    value: function (attr, oldVal, newVal) {
      this.setEntityAttribute(attr, oldVal, newVal);
    }
  },

  attachedCallback: {
    value: function () {
      this.addToParent();
      this.load();
    }
  },

  /**
   * Tell parent to remove this element's object3D from its object3D.
   * Do not call on scene element because that will cause a call to
   * document.body.remove().
   */
  detachedCallback: {
    value: function () {
      if (!this.parentEl || this.isScene) { return; }
      this.removeComponents();
      this.parentEl.remove(this);
    }
  },

  applyMixin: {
    value: function (attr) {
      var attrValue = this.getAttribute(attr);
      if (!attr) {
        this.updateComponents();
        return;
      }
      this.updateComponent(attr, attrValue);
    }
  },

  mapStateMixins: {
    value: function (state, op) {
      var mixins = this.getAttribute('mixin');
      var mixinIds;
      if (!mixins) { return; }
      mixinIds = mixins.split(' ');
      mixinIds.forEach(function (id) {
        var mixinId = id + '-' + state;
        op(mixinId);
      });
      this.updateComponents();
    }
  },

  updateStateMixins: {
    value: function (newMixins, oldMixins) {
      var self = this;
      oldMixins = oldMixins || '';
      var newMixinsIds = newMixins.split(' ');
      var oldMixinsIds = oldMixins ? oldMixins.split(' ') : [];
      // The list of mixins that might have been removed on update
      var diff = oldMixinsIds.filter(function (i) { return newMixinsIds.indexOf(i) < 0; });
      // Remove the mixins that are gone on update
      diff.forEach(function (mixinId) {
        var forEach = Array.prototype.forEach;
        // State Mixins
        var stateMixinsEls = document.querySelectorAll('[id^=' + mixinId + '-]');
        var stateMixinIds = [];
        forEach.call(stateMixinsEls, function (el) { stateMixinIds.push(el.id); });
        stateMixinIds.forEach(self.unregisterMixin.bind(self));
      });
      this.states.forEach(function (state) {
        newMixinsIds.forEach(function (id) {
          var mixinId = id + '-' + state;
          self.registerMixin(mixinId);
        });
      });
    }
  },

  add: {
    value: function (el) {
      if (!el.object3D) {
        error("Trying to add an object3D that doesn't exist");
      }
      this.object3D.add(el.object3D);
    }
  },

  addToParent: {
    value: function () {
      var self = this;
      var parent = this.parentEl = this.parentNode;
      var attachedToParent = this.attachedToParent;
      if (!parent || attachedToParent) { return; }
      if (isNode(parent)) {
        attach();
        return;
      }
      // If the parent isn't an `ANode` but eventually it will be
      // when a templated element is created, we want to attach
      // this element to the parent then.
      parent.addEventListener('nodeready', attach);
      function attach () {
        // To prevent an object to attach itself multiple times to the parent.
        self.attachedToParent = true;
        if (parent.add) {
          parent.add(self);
        }
      }
    }
  },

  load: {
    value: function () {
      // To prevent calling load more than once
      if (this.hasLoaded) { return; }
      // Handle to the associated DOM element
      this.object3D.el = this;
      // It attaches itself to the threejs parent object3D
      this.addToParent();
      // Components initialization
      this.updateComponents();
      // Call the parent class
      ANode.prototype.load.call(this);
    },
    writable: window.debug
  },

  remove: {
    value: function (el) {
      this.object3D.remove(el.object3D);
    }
  },

  /**
   * Check if a component is defined for an entity, including defaults and mixins.
   *
   * @param {string} name - Component name.
   */
  isComponentDefined: {
    value: function (name) {
      // If the defaults contain the component
      var inDefaults = this.defaults[name];
      // If the element contains the component
      var inAttribute = this.hasAttribute(name);
      if (inDefaults !== undefined || inAttribute) { return true; }
      return this.isComponentMixedIn(name);
    }
  },

  isComponentMixedIn: {
    value: function (name) {
      var i;
      var inMixin = false;
      var mixinEls = this.mixinEls;
     // If any of the mixins contains the component
      for (i = 0; i < mixinEls.length; ++i) {
        inMixin = mixinEls[i].hasAttribute(name);
        if (inMixin) { break; }
      }
      return inMixin;
    }
  },

  initComponent: {
    value: function (name, isDependency) {
      var isComponentDefined;
      // If it's not a component name or
      // If the component is already initialized
      if (!components[name] || this.components[name]) { return; }
      isComponentDefined = this.isComponentDefined(name);
      // If the component is not defined for the element
      if (!isComponentDefined && !isDependency) { return; }
      this.initComponentDependencies(name);
      // If a component it's a dependency of another but it's not defined
      // on the attribute, mixins or entity defaults
      // we have to add it.
      if (isDependency && !isComponentDefined) {
        this.setAttribute(name, '');
      } else {
        this.components[name] = new components[name].Component(this);
      }
      log('Component initialized: %s', name);
    }
  },

  initComponentDependencies: {
    value: function (name) {
      var self = this;
      var component = components[name];
      var dependencies;
      // If the component doesn't exist
      if (!component) { return; }
      dependencies = components[name].dependencies;
      if (!dependencies) { return; }
      dependencies.forEach(function (component) {
        self.initComponent(component, true);
      });
    }
  },

  removeComponents: {
    value: function () {
      var self = this;
      var entityComponents = Object.keys(this.components);
      entityComponents.forEach(removeComponent);
      function removeComponent (name) {
        self.components[name].remove();
        delete self.components[name];
      }
    }
  },

  updateComponents: {
    value: function () {
      var self = this;
      var entityComponents = Object.keys(components);
      // Updates components
      entityComponents.forEach(updateComponent);
      function updateComponent (name) {
        var elValue = self.getAttribute(name);
        self.updateComponent(name, elValue);
      }
    }
  },

  /**
   * Initialize, update, or remove a single component.
   *
   * When initializing, we set the component on `this.components`.
   *
   * @param {string} name - Component name.
   * @param {object} newData - The new attributes assigned to the component
   */
  updateComponent: {
    value: function (name, newData) {
      var component = this.components[name];
      var isDefault = name in this.defaults;
      var isMixedIn = this.isComponentMixedIn(name);
      if (component) {
        // Attribute was removed. Remove component.
        // 1. If the component is not defined in the defaults,
        // mixins or element attribute
        // 2. If the new data is null, it's not a default
        // component and the component it's not defined via
        // mixins
        if (!this.isComponentDefined(name) ||
            newData === null && !isDefault && !isMixedIn) {
          component.remove();
          delete this.components[name];
          return;
        }
        if (typeof newData === 'string') {
          newData = component.parse(newData);
        }
        // Component already initialized. Update component.
        // TODO: update component attribute more granularly.
        component.updateAttributes(newData);
        return;
      }
      // Component not yet initialized. Initialize component.
      this.initComponent(name);
    }
  },

  /**
   * If `attr` is a component name and `componentAttr` is not defined, removeAttribute removes
   * the entire component from the entity.
   *
   * If `attr` is a component name and `componentAttr` is defined, removeAttribute removes a
   * single attribute from the component.
   *
   * @param {string} attr - Attribute name, which could also be a component name.
   * @param {string} componentAttr - Component attribute name.
   */
  removeAttribute: {
    value: function (attr, componentAttr) {
      var component = components[attr];
      if (component) {
        if (componentAttr) {
          this.setAttribute(attr, componentAttr, undefined);
        } else {
          this.setEntityAttribute(attr, undefined, null);
        }
      }
      HTMLElement.prototype.removeAttribute.call(this, attr);
    }
  },

  /**
   * Deals with updates on entity-specific attributes (i.e., components and mixins).
   *
   * @param {string} attr
   * @param {string} oldVal
   * @param {string|object} newVal
   */
  setEntityAttribute: {
    value: function (attr, oldVal, newVal) {
      var component = components[attr];
      oldVal = oldVal || this.getAttribute(attr);
      // When creating objects programatically and setting attributes, the object is not part
      // of the scene until is inserted into the DOM.
      if (!this.hasLoaded) { return; }
      if (attr === 'mixin') {
        this.updateStateMixins(newVal, oldVal);
        this.updateComponents();
        return;
      }
      if (component) { this.updateComponent(attr, newVal); }
    }
  },

  /**
   * If attribute is a component, setAttribute will apply the value to the
   * existing component data, not replace it. Examples:
   *
   * Examples:
   *
   * setAttribute('id', 'my-element');
   * setAttribute('material', { color: 'crimson' });
   * setAttribute('material', 'color', 'crimson');
   *
   * @param {string} attr - Attribute name. setAttribute will initialize or update
   *        a component if the name corresponds to a registered component.
   * @param {string|object} value - If a string, setAttribute will update the attribute or.
   *        component. If an object, the value will be mixed into the component.
   * @param {string} componentAttrValue - If defined, `value` will act as the attribute
   *        name and setAttribute will only set a single component attribute.
   */
  setAttribute: {
    value: function (attr, value, componentAttrValue) {
      var self = this;
      var component = components[attr];
      var partialComponentData;
      value = value === undefined ? '' : value;
      var valueStr = value;
      var oldValue;
      if (component) {
        if (typeof value === 'string' && componentAttrValue !== undefined) {
          // Update currently-defined component data with the new attribute value.
          partialComponentData = self.getAttribute(attr) || {};
          partialComponentData[value] = componentAttrValue;
          value = partialComponentData;
        }
        valueStr = component.stringify(value);
      }

      oldValue = this.getAttribute(attr);
      ANode.prototype.setAttribute.call(self, attr, valueStr);
      self.setEntityAttribute(attr, oldValue, value);
    },
    writable: window.debug
  },

  /**
   * If `attr` is a component, returns JUST the component data specified in the HTML
   * by parsing the style-like string into an object. Like a partial version of
   * `getComputedAttribute` as returned component data does not include applied mixins or
   * defaults.
   *
   * If `attr` is not a component, fall back to HTML getAttribute.
   *
   * @param {string} attr
   * @returns {object|string} Object if component, else string.
   */
  getAttribute: {
    value: function (attr) {
      var component = components[attr];
      var value = HTMLElement.prototype.getAttribute.call(this, attr);
      if (!component || typeof value !== 'string') { return value; }
      return component.parse(value);
    },
    writable: window.debug
  },

  /**
   * If `attr` is a component, returns ALL component data including applied mixins and
   * defaults.
   *
   * If `attr` is not a component, fall back to HTML getAttribute.
   *
   * @param {string} attr
   * @returns {object|string} Object if component, else string.
   */
  getComputedAttribute: {
    value: function (attr) {
      var component = this.components[attr];
      if (component) { return component.getData(); }
      return HTMLElement.prototype.getAttribute.call(this, attr);
    }
  },

  addState: {
    value: function (state) {
      if (this.is(state)) { return; }
      this.states.push(state);
      this.mapStateMixins(state, this.registerMixin.bind(this));
      this.emit('stateadded', {state: state});
    }
  },

  removeState: {
    value: function (state) {
      var stateIndex = this.is(state);
      if (stateIndex === false) { return; }
      this.states.splice(stateIndex, 1);
      this.mapStateMixins(state, this.unregisterMixin.bind(this));
      this.emit('stateremoved', {state: state});
    }
  },

  /**
   * Checks if the element is in a given state. e.g. el.is('alive');
   * @type {string} state - Name of the state we want to check
   */
  is: {
    value: function (state) {
      var is = false;
      this.states.forEach(function (elState, index) {
        if (elState === state) { is = index; }
      });
      return is;
    }
  }
};

module.exports = registerElement('a-entity', {
  prototype: Object.create(ANode.prototype, proto)
});

},{"../../lib/three":30,"../utils/debug":72,"./a-node":65,"./a-register-element":66,"./component":68}],64:[function(require,module,exports){
/* global HTMLElement */
var AComponents = require('./component').components;
var ANode = require('./a-node');
var registerElement = require('./a-register-element').registerElement;

module.exports = registerElement(
  'a-mixin',
  {
    prototype: Object.create(
      ANode.prototype,
      {
        attachedCallback: {
          value: function () {
            this.load();
          },
          writable: window.debug
        },

        setAttribute: {
          value: function (attr, value) {
            var component = AComponents[attr];
            if (component && typeof value === 'object') {
              value = component.stringify(value);
            }
            HTMLElement.prototype.setAttribute.call(this, attr, value);
          },
          writable: window.debug
        },

        getAttribute: {
          value: function (attr) {
            var component = AComponents[attr];
            var value = HTMLElement.prototype.getAttribute.call(this, attr);
            if (!component || typeof value !== 'string') { return value; }
            return component.parse(value);
          },
          writable: window.debug
        }
      }
    )
  }
);

},{"./a-node":65,"./a-register-element":66,"./component":68}],65:[function(require,module,exports){
/* global HTMLElement, MutationObserver */
var registerElement = require('./a-register-element').registerElement;
var utils = require('../utils/');

/**
 * Base class for A-Frame that manages loading of objects.
 */
module.exports = registerElement('a-node', {
  prototype: Object.create(HTMLElement.prototype, {
    createdCallback: {
      value: function () {
        this.isNode = true;
        this.mixinEls = [];
        this.mixinObservers = {};
      }
    },

    attachedCallback: {
      value: function () {
        var mixins = this.getAttribute('mixin');
        this.sceneEl = document.querySelector('a-scene');
        this.emit('nodeready', {}, false);
        if (mixins) { this.updateMixins(mixins); }
      }
    },

    detachedCallback: {
      value: function () { /* no-op */ }
    },

    attributeChangedCallback: {
      value: function (attr, oldVal, newVal) {
        if (attr === 'mixin') { this.updateMixins(newVal, oldVal); }
      }
    },

    load: {
      value: function () {
        // To prevent emmitting the loaded event more than once
        if (this.hasLoaded) { return; }
        this.hasLoaded = true;
        this.emit('loaded', {}, false);
      }
    },

    updateMixins: {
      value: function (newMixins, oldMixins) {
        var newMixinsIds = newMixins.split(' ');
        var oldMixinsIds = oldMixins ? oldMixins.split(' ') : [];
        // To determine what listeners will be removed
        var diff = oldMixinsIds.filter(function (i) { return newMixinsIds.indexOf(i) < 0; });
        this.mixinEls = [];
        diff.forEach(this.unregisterMixin.bind(this));
        newMixinsIds.forEach(this.registerMixin.bind(this));
      }
    },

    addMixin: {
      value: function (mixinId) {
        var mixins = this.getAttribute('mixin');
        var mixinIds = mixins.split(' ');
        var i;
        for (i = 0; i < mixinIds.length; ++i) {
          if (mixinIds[i] === mixinId) { return; }
        }
        mixinIds.push(mixinId);
        this.setAttribute('mixin', mixinIds.join(' '));
      }
    },

    removeMixin: {
      value: function (mixinId) {
        var mixins = this.getAttribute('mixin');
        var mixinIds = mixins.split(' ');
        var i;
        for (i = 0; i < mixinIds.length; ++i) {
          if (mixinIds[i] === mixinId) {
            mixinIds.splice(i, 1);
            this.setAttribute('mixin', mixinIds.join(' '));
            return;
          }
        }
      }
    },

    registerMixin: {
      value: function (mixinId) {
        var mixinEl = document.querySelector('a-mixin#' + mixinId);
        if (!mixinEl) { return; }
        this.attachMixinListener(mixinEl);
        this.mixinEls.push(mixinEl);
      }
    },

    setAttribute: {
      value: function (attr, newValue) {
        if (attr === 'mixin') { this.updateMixins(newValue); }
        HTMLElement.prototype.setAttribute.call(this, attr, newValue);
      }
    },

    unregisterMixin: {
      value: function (mixinId) {
        var mixinEls = this.mixinEls;
        var mixinEl;
        var i;
        for (i = 0; i < mixinEls.length; ++i) {
          mixinEl = mixinEls[i];
          if (mixinId === mixinEl.id) {
            mixinEls.splice(i, 1);
            break;
          }
        }
        this.removeMixinListener(mixinId);
      }
    },

    removeMixinListener: {
      value: function (mixinId) {
        var observer = this.mixinObservers[mixinId];
        if (!observer) { return; }
        observer.disconnect();
        this.mixinObservers[mixinId] = null;
      }
    },

    attachMixinListener: {
      value: function (mixinEl) {
        var self = this;
        var mixinId = mixinEl.id;
        var currentObserver = this.mixinObservers[mixinId];
        if (!mixinEl) { return; }
        if (currentObserver) { return; }
        var observer = new MutationObserver(function (mutations) {
          var attr = mutations[0].attributeName;
          self.applyMixin(attr);
        });
        var config = { attributes: true };
        observer.observe(mixinEl, config);
        this.mixinObservers[mixinId] = observer;
      }
    },

    applyMixin: {
      value: function () { /* no-op */ }
    },

    /**
     * Emits a DOM event.
     *
     * @param {String} name
     *   Name of event (use a space-delimited string for multiple events).
     * @param {Object=} [detail={}]
     *   Custom data to pass as `detail` to the event.
     * @param {Boolean=} [bubbles=true]
     *   Whether the event should bubble.
     */
    emit: {
      value: function (name, detail, bubbles) {
        var self = this;
        detail = detail || {};
        if (bubbles === undefined) { bubbles = true; }
        var data = { bubbles: !!bubbles, detail: detail };
        return name.split(' ').map(function (eventName) {
          return utils.fireEvent(self, eventName, data);
        });
      }
    },

    /**
     * Returns a closure that emits a DOM event.
     *
     * @param {String} name
     *   Name of event (use a space-delimited string for multiple events).
     * @param {Object} detail
     *   Custom data (optional) to pass as `detail` if the event is to
     *   be a `CustomEvent`.
     * @param {Boolean} bubbles
     *   Whether the event should be bubble.
     */
    emitter: {
      value: function (name, detail, bubbles) {
        var self = this;
        return function () {
          self.emit(name, detail, bubbles);
        };
      }
    }
  })
});

},{"../utils/":73,"./a-register-element":66}],66:[function(require,module,exports){
// Polyfill `document.registerElement`.
require('document-register-element');

/*
 ------------------------------------------------------------
 ------------- WARNING WARNING WARNING WARNING --------------
 ------------------------------------------------------------

 This module wraps registerElement to deal with
 components that inherit from `ANode` and `AEntity`.
 It's a pass through in any other case.

 It wraps some of the prototype methods
 of the created element to make sure that the corresponding
 functions in the base classes (`AEntity` and `ANode`) are also
 invoked. The method in the base class is always called before the
 one in the derived object.

*/
var registerElement = document.registerElement;

var knownTags = module.exports.knownTags = {};

var addTagName = function (tagName) {
  knownTags[tagName.toLowerCase()] = true;
};

/**
 * Returns whether the element type is one of our known registered ones
 *
 * @param   {string} node The name of the tag to register
 * @returns {boolean} Whether the tag name matches that of our registered
 *                    custom elements
 */
module.exports.isNode = function (node) {
  return node.tagName.toLowerCase() in knownTags || node.isNode;
};

/**
 * @param   {string} tagName The name of the tag to register
 * @param   {object} obj The prototype of the new element
 * @returns {object} The prototype of the new element
 */
module.exports.registerElement = document.registerElement = function (tagName, obj) {
  var proto = Object.getPrototypeOf(obj.prototype);
  var newObj = obj;
  var isANode = ANode && proto === ANode.prototype;
  var isAEntity = AEntity && proto === AEntity.prototype;

  if (isANode || isAEntity) { addTagName(tagName); }

  // Does the element inherit from `ANode`?
  if (isANode) {
    newObj = wrapANodeMethods(obj.prototype);
    newObj = {prototype: Object.create(proto, newObj)};
  }

  // Does the element inherit from `AEntity`?
  if (isAEntity) {
    newObj = wrapAEntityMethods(obj.prototype);
    newObj = {prototype: Object.create(proto, newObj)};
  }

  return registerElement.call(document, tagName, newObj);
};

/**
 * This wraps some of the obj methods to call those on `ANode` base clase.
 * @param  {object} obj The objects that contains the methods that will be wrapped.
 * @return {object} An object with the same properties as the input parameter but
 * with some of methods wrapped.
 */
function wrapANodeMethods (obj) {
  var newObj = {};
  var ANodeMethods = [
    'attachedCallback',
    'attributeChangedCallback',
    'createdCallback'
  ];
  wrapMethods(newObj, ANodeMethods, obj, ANode.prototype);
  copyProperties(obj, newObj);
  return newObj;
}

/**
 * This wraps some of the obj methods to call those on `AEntity` base class.
 * @param  {object} obj The objects that contains the methods that will be wrapped.
 * @return {object} An object with the same properties as the input parameter but
 * with some of methods wrapped.
 */
function wrapAEntityMethods (obj) {
  var newObj = {};
  var ANodeMethods = [
    'attachedCallback',
    'attributeChangedCallback',
    'createdCallback'
  ];
  var AEntityMethods = [
    'attributeChangedCallback',
    'attachedCallback',
    'createdCallback',
    'detachedCallback'
  ];
  wrapMethods(newObj, ANodeMethods, obj, ANode.prototype);
  wrapMethods(newObj, AEntityMethods, obj, AEntity.prototype);
  // Copies the remaining properties into the new object
  copyProperties(obj, newObj);
  return newObj;
}

/**
 * Wraps a list a methods to ensure that those in the base class are called through the derived one.
 * @param  {object} targetObj Object that will contain the wrapped methods
 * @param  {array} methodList List of methods from the derivedObj that will be wrapped
 * @param  {object} derivedObject Object that inherits from the baseObj
 * @param  {object} baseObj Object that derivedObj inherits from
 * @return {undefined}
 */
function wrapMethods (targetObj, methodList, derivedObj, baseObj) {
  methodList.forEach(function (methodName) {
    wrapMethod(targetObj, methodName, derivedObj, baseObj);
  });
}

/**
 * Wraps one method to ensure that the one in the base class is called before the one
 * in the derived one
 * @param  {object} obj Object that will contain the wrapped method
 * @param  {string} methodName The name of the method that will be wrapped
 * @param  {object} derivedObject Object that inherits from the baseObj
 * @param  {object} baseObj Object that derivedObj inherits from
 * @return {undefined}
 */
function wrapMethod (obj, methodName, derivedObj, baseObj) {
  var derivedMethod = derivedObj[methodName];
  var baseMethod = baseObj[methodName];
  if (!derivedMethod || !baseMethod) { return; }
  // The derived class doesn't override the one in the base one
  if (derivedMethod === baseMethod) { return; }
  // Wrapper
  // The base method is called before the one in the derived class
  var wrapperMethod = function () {
    baseMethod.apply(this, arguments);
    return derivedMethod.apply(this, arguments);
  };
  obj[methodName] = {value: wrapperMethod, writable: window.debug};
}

/**
 * It copies the properties from source to destination object
 * if they don't exist already
 * @param  {object} source The object where properties are copied from
 * @param  {type} destination The object where properties are copied to
 * @return {undefined}
 */
function copyProperties (source, destination) {
  var props = Object.getOwnPropertyNames(source);
  props.forEach(function (prop) {
    var desc;
    if (!destination[prop]) {
      desc = Object.getOwnPropertyDescriptor(source, prop);
      destination[prop] = {value: source[prop], writable: desc.writable};
    }
  });
}

var ANode = require('./a-node');
var AEntity = require('./a-entity');

},{"./a-entity":63,"./a-node":65,"document-register-element":82}],67:[function(require,module,exports){
/* global MessageChannel, Promise */
var re = require('./a-register-element');
var RStats = require('../../lib/vendor/rStats');
var THREE = require('../../lib/three');
var TWEEN = require('tween.js');
var utils = require('../utils/');
var AEntity = require('./a-entity');
var Wakelock = require('../../lib/vendor/wakelock/wakelock');

var dummyDolly = new THREE.Object3D();
var controls = new THREE.VRControls(dummyDolly);
var isNode = re.isNode;
var DEFAULT_CAMERA_ATTR = 'data-aframe-default-camera';
var DEFAULT_LIGHT_ATTR = 'data-aframe-default-light';
var HIDDEN_CLASS = 'a-hidden';
var registerElement = re.registerElement;
var ENTER_VR_CLASS = 'a-enter-vr';
var ENTER_VR_NO_HEADSET = 'data-a-enter-vr-no-headset';
var ENTER_VR_NO_WEBVR = 'data-a-enter-vr-no-webvr';
var ENTER_VR_BTN_CLASS = 'a-enter-vr-button';
var ENTER_VR_MODAL_CLASS = 'a-enter-vr-modal';
var ORIENTATION_MODAL_CLASS = 'a-orientation-modal';
var isMobile = utils.isMobile();

/**
 * Scene element, holds all entities.
 *
 * @member {number} animationFrameID
 * @member {array} behaviors - Component instances that have registered themselves to be
           updated on every tick.
 * @member {object} cameraEl - Set the entity with a camera component.
 * @member {object} canvas
 * @member {bool} defaultLightsEnabled - false if user has not added lights.
 * @member {Element} enterVREl
 * @member {bool} insideIframe
 * @member {bool} insideLoader
 * @member {bool} isScene - Differentiates this as a scene entity as opposed
           to other `AEntity`s.
 * @member {bool} isMobile - Whether browser is mobile (via UA detection).
 * @member {object} object3D - The root three.js Scene object.
 * @member {object} monoRenderer
 * @member {number} pendingElements - Number of elements currently waiting to
 *         initialize before beginning rendering.
 * @member {object} renderer
 * @member {bool} renderLoopStarted
 * @member {object} stats
 * @member {object} stereoRenderer
 * @member {object} wakelock
 */
var AScene = module.exports = registerElement('a-scene', {
  prototype: Object.create(AEntity.prototype, {
    createdCallback: {
      value: function () {
        this.behaviors = [];
        this.defaultLightsEnabled = true;
        this.enterVREl = null;
        this.insideIframe = window.top !== window.self;
        this.insideLoader = false;
        this.isScene = true;
        this.materials = {};
        this.object3D = AScene.scene || new THREE.Scene();

        AScene.scene = this.object3D;
      }
    },

    attachedCallback: {
      value: function () {
        this.isMobile = isMobile;
        var resizeCanvas = this.resizeCanvas.bind(this);

        if (isMobile) {
          injectMetaTags();
          this.wakelock = new Wakelock();
        }

        this.setupStats();
        this.setupCanvas();
        this.setupKeyboardShortcuts();
        this.setupRenderer();
        this.setupDefaultLights();
        this.attachEventListeners();
        this.attachFullscreenListeners();
        this.attachOrientationListeners();

        // For Chrome (https://github.com/aframevr/aframe-core/issues/321).
        window.addEventListener('load', resizeCanvas);
      },
      writable: window.debug
    },

    /**
     * Handle stats.
     * TODO: move stats to a component.
     */
    attributeChangedCallback: {
      value: function (attr, oldVal, newVal) {
        if (oldVal === newVal) { return; }
        if (attr === 'stats') { this.setupStats(); }
      }
    },

    /**
     * Shuts down scene on detach.
     */
    detachedCallback: {
      value: function () {
        window.cancelAnimationFrame(this.animationFrameID);
        this.animationFrameID = null;
      }
    },

    /**
     * @param {object} behavior - Generally a component. Must implement a .update() method to
     *        be called on every tick.
     */
    addBehavior: {
      value: function (behavior) {
        this.behaviors.push(behavior);
      }
    },

    /**
     * Attaches event listeners to all assets and entities and wait for them
     * all to load before kicking things off.
     */
    attachEventListeners: {
      value: function () {
        var self = this;
        var elementLoadedCallback = this.elementLoadedCallback.bind(this);
        this.pendingElements = 0;
        var assets = document.querySelector('a-assets');
        if (assets && !assets.hasLoaded) {
          this.pendingElements++;
          attachEventListener(assets);
        }

        var children = this.querySelectorAll('*');
        Array.prototype.slice.call(children).forEach(countElement);

        function countElement (node) {
          if (!isNode(node)) { return; }
          self.pendingElements++;
          if (!node.hasLoaded) {
            attachEventListener(node);
          } else {
            elementLoadedCallback(node);
          }
        }

        function attachEventListener (node) {
          node.addEventListener('loaded', elementLoadedCallback);
        }
      }
    },

    attachOrientationListeners: {
      value: function (e) {
        window.addEventListener('orientationchange', this.showOrientationModal.bind(this));
      }
    },

    showOrientationModal: {
      value: function () {
        if (!utils.isIOS()) { return; }
        if (!utils.isLandscape() && this.renderer === this.stereoRenderer) {
          this.orientationModal.classList.remove(HIDDEN_CLASS);
        } else {
          this.orientationModal.classList.add(HIDDEN_CLASS);
        }
      }
    },

    /**
     * Switch back to mono renderer if no longer in fullscreen VR.
     * Lock to landscape orientation on mobile when fullscreen.
     */
    attachFullscreenListeners: {
      value: function () {
        function fullscreenChange (e) {
          var fsElement = document.fullscreenElement ||
                          document.mozFullScreenElement ||
                          document.webkitFullscreenElement;
          // Lock to landscape orientation on mobile.
          if (fsElement && this.isMobile) {
            window.screen.orientation.lock('landscape');
          } else {
            window.screen.orientation.unlock();
          }
          if (!fsElement) {
            this.showUI();
            this.setMonoRenderer();
          }
          if (this.wakelock) { this.wakelock.release(); }
        }
        document.addEventListener('mozfullscreenchange',
                                  fullscreenChange.bind(this));
        document.addEventListener('webkitfullscreenchange',
                                  fullscreenChange.bind(this));
      }
    },

    /**
     * Handles VR and fullscreen behavior for when we are inside an iframe.
     */
    attachMessageListeners: {
      value: function () {
        var self = this;
        window.addEventListener('message', function (e) {
          if (e.data) {
            switch (e.data.type) {
              case 'loaderReady': {
                self.insideLoader = true;
                self.removeEnterVRButton();
                break;
              }
              case 'fullscreen': {
                switch (e.data.data) {
                  // Set renderer with fullscreen VR enter and exit.
                  case 'enter':
                    self.setStereoRenderer();
                    break;
                  case 'exit':
                    self.setMonoRenderer();
                    break;
                }
              }
            }
          }
        });
      }
    },

    /**
     * Handler attached to elements to help scene know when to kick off.
     * Scene waits for all entities to load.
     */
    elementLoadedCallback: {
      value: function () {
        this.pendingElements--;
        // Still waiting on elements.
        if (this.pendingElements > 0) { return; }
        // Render loop already running.
        if (this.renderLoopStarted) { return; }

        this.setupLoader();
        if (!this.cameraEl) {
          // Add default camera if user has not added one. Wait for it to load.
          this.setupDefaultCamera();
          return;
        }
        this.resizeCanvas();

        // Kick off render loop.
        this.render();
        this.renderLoopStarted = true;
        this.load();
        this.checkUrlParameters();
      }
    },

    /**
     * Enters VR when ?mode=vr is specified in the querystring.
     */
    checkUrlParameters: {
      value: function () {
        var mode = utils.getUrlParameter('mode');
        if (mode === 'vr') {
          this.enterVR();
        }

        var ui = utils.getUrlParameter('ui');
        if (ui === 'false') {
          this.hideUI();
        }
      }
    },

    enterVR: {
      value: function () {
        this.hideUI();
        this.setStereoRenderer();
        this.setFullscreen();
        this.showOrientationModal();
      }
    },

    exitVR: {
      value: function () {
        this.showUI();
        this.setMonoRenderer();
        this.orientationModal.classList.add(HIDDEN_CLASS);
      }
    },

    getCanvasSize: {
      value: function () {
        var canvas = this.canvas;
        if (this.isMobile) {
          return {
            height: window.innerHeight,
            width: window.innerWidth
          };
        }
        canvas.style.width = '100%';
        canvas.style.height = '100%';
        return {
          height: canvas.offsetHeight,
          width: canvas.offsetWidth
        };
      }
    },

    hideUI: {
      value: function () {
        if (this.statsEl) {
          this.statsEl.classList.add(HIDDEN_CLASS);
        }
        if (this.enterVREl) {
          this.enterVREl.classList.add(HIDDEN_CLASS);
        }
      }
    },

    load: {
      value: function () {
        // To prevent emmitting the loaded event more than once
        // and to prevent triggering loaded if there are still
        // pending elements to be loaded
        if (this.hasLoaded || this.pendingElements !== 0) { return; }
        AEntity.prototype.load.call(this);
      }
    },

    /**
     * Notify scene that light has been added and to remove the default
     *
     * @param {object} el - element holding the light component.
     */
    registerLight: {
      value: function (el) {
        if (this.defaultLightsEnabled &&
            !el.hasAttribute(DEFAULT_LIGHT_ATTR)) {
          // User added a light, remove default lights through DOM.
          var defaultLights = document.querySelectorAll(
            '[' + DEFAULT_LIGHT_ATTR + ']');
          for (var i = 0; i < defaultLights.length; i++) {
            this.removeChild(defaultLights[i]);
          }
          this.defaultLightsEnabled = false;
        }
      }
    },

    /**
     * Keep track of material in case an update trigger is needed (e.g., fog).
     *
     * @param {object} material
     */
    registerMaterial: {
      value: function (material) {
        this.materials[material.uuid] = material;
      }
    },

    /**
     * @param {object} behavior - Generally a component. Has registered itself to behaviors.
     */
    removeBehavior: {
      value: function (behavior) {
        var behaviors = this.behaviors;
        var index = behaviors.indexOf(behavior);
        if (index === -1) { return; }
        behaviors.splice(index, 1);
      }
    },

    removeEnterVR: {
      value: function () {
        if (this.enterVREl) {
          this.enterVREl.parentNode.removeChild(this.enterVREl);
        }
      }
    },

    resizeCanvas: {
      value: function () {
        // It's possible that the camera is not injected yet.
        if (!this.cameraEl) { return; }
        var camera = this.cameraEl.components.camera.camera;
        var size = this.getCanvasSize();
        // Updates camera
        camera.aspect = size.width / size.height;
        camera.updateProjectionMatrix();
        // Notify the renderer of the size change
        this.renderer.setSize(size.width, size.height, true);
      }
    },

    /**
     * Manually handles fullscreen for non-VR mobile where the renderer' VR
     * display is not polyfilled. Also sets wakelock for mobile in the process.
     *
     * Desktop just works so use the renderer.setFullScreen in that case.
     */
    setFullscreen: {
      value: function () {
        var canvas = this.canvas;

        if (!this.isMobile) {
          this.stereoRenderer.setFullScreen(true);
          return;
        }

        if (this.wakelock) { this.wakelock.request(); }

        if (canvas.requestFullscreen) {
          canvas.requestFullscreen();
        } else if (canvas.mozRequestFullScreen) {
          canvas.mozRequestFullScreen();
        } else if (canvas.webkitRequestFullscreen) {
          canvas.webkitRequestFullscreen();
        }
      }
    },

    /**
     * Sets renderer to mono (one eye) and resizes canvas.
     */
    setMonoRenderer: {
      value: function () {
        this.renderer = this.monoRenderer;
        this.resizeCanvas();
      }
    },

    /**
     * Sets renderer to stereo (two eyes) and resizes canvas.
     */
    setStereoRenderer: {
      value: function () {
        this.renderer = this.stereoRenderer;
        this.resizeCanvas();
      }
    },

    setupCanvas: {
      value: function () {
        var canvas = this.canvas = document.createElement('canvas');
        canvas.classList.add('a-canvas');
        // Prevents overscroll on mobile devices.
        canvas.addEventListener('touchmove', function (evt) {
          evt.preventDefault();
        });
        document.body.appendChild(canvas);
        window.addEventListener('resize', this.resizeCanvas.bind(this), false);
      }
    },

    /**
     * Creates a default camera if user has not added one during the initial.
     * scene traversal.
     *
     * Default camera height is at human level (~1.8m) and back such that
     * entities at the origin (0, 0, 0) are well-centered.
     */
    setupDefaultCamera: {
      value: function () {
        var cameraWrapperEl;
        var defaultCamera;

        if (this.cameraEl) { return; }

        // DOM calls to create camera.
        cameraWrapperEl = document.createElement('a-entity');
        cameraWrapperEl.setAttribute('position', {x: 0, y: 1.8, z: 4});
        cameraWrapperEl.setAttribute(DEFAULT_CAMERA_ATTR, '');
        defaultCamera = document.createElement('a-entity');
        defaultCamera.setAttribute('camera');
        defaultCamera.setAttribute('wasd-controls');
        defaultCamera.setAttribute('look-controls');
        this.pendingElements++;
        defaultCamera.addEventListener('loaded',
                                       this.elementLoadedCallback.bind(this));
        cameraWrapperEl.appendChild(defaultCamera);
        this.appendChild(cameraWrapperEl);
      }
    },

    /**
     * Prescibe default lights to the scene.
     * Does so by injecting markup such that this state is not invisible.
     * These lights are removed if the user adds any lights.
     */
    setupDefaultLights: {
      value: function () {
        var ambientLight = document.createElement('a-entity');
        ambientLight.setAttribute('light',
                                  {color: '#fff', type: 'ambient'});
        ambientLight.setAttribute(DEFAULT_LIGHT_ATTR, '');
        this.appendChild(ambientLight);

        var directionalLight = document.createElement('a-entity');
        directionalLight.setAttribute('light', { color: '#fff', intensity: 0.2 });
        directionalLight.setAttribute('position', { x: -1, y: 2, z: 1 });
        directionalLight.setAttribute(DEFAULT_LIGHT_ATTR, '');
        this.appendChild(directionalLight);
      }
    },

    setupEnterVR: {
      value: function () {
        if (this.enterVREl) { return; }
        this.enterVREl = createEnterVR(this.enterVR.bind(this));
        document.body.appendChild(this.enterVREl);
      }
    },

    setupOrientationModal: {
      value: function () {
        var modal = this.orientationModal = document.createElement('div');
        modal.className = ORIENTATION_MODAL_CLASS;
        modal.classList.add(HIDDEN_CLASS);

        var exit = document.createElement('button');
        exit.innerHTML = 'Exit VR';
        exit.addEventListener('click', this.exitVR.bind(this));
        modal.appendChild(exit);

        document.body.appendChild(modal);
      }
    },

    /**
     * Set up keyboard shortcuts to:
     *   - Enter VR when `f` is pressed.
     *   - Reset sensor when `z` is pressed.
     */
    setupKeyboardShortcuts: {
      value: function () {
        var self = this;
        window.addEventListener('keyup', function (event) {
          if (event.keyCode === 70) {  // f.
            self.enterVR();
          }
          if (event.keyCode === 90) {  // z.
            controls.resetSensor();
          }
        }, false);
      }
    },

    /**
     * Checks for VR mode before kicking off render loop.
     */
    setupLoader: {
      value: function () {
        var self = this;

        if (self.insideIframe) {
          self.attachMessageListeners();
          self.vrLoaderMode().then(function (isVr) {
            if (isVr) {
              self.setStereoRenderer();
            } else {
              self.setMonoRenderer();
            }
            window.top.postMessage({type: 'ready'}, '*');
          });
        }
        if (!self.insideLoader) {
          self.setupEnterVR();
          self.setupOrientationModal();
        }
      }
    },

    setupRenderer: {
      value: function () {
        var canvas = this.canvas;
        // Set at startup. To enable/disable antialias
        // at runttime we would have to recreate the whole context
        var antialias = this.getAttribute('antialias') === 'true';
        var renderer = this.renderer = this.monoRenderer =
          (AScene && AScene.renderer) ||
          // To prevent creating multiple rendering contexts.
          new THREE.WebGLRenderer({
            canvas: canvas,
            antialias: antialias,
            alpha: true
          });
        renderer.setPixelRatio(window.devicePixelRatio);
        renderer.sortObjects = false;
        AScene.renderer = renderer;
        this.stereoRenderer = new THREE.VREffect(renderer);
      },
      writable: window.debug
    },

    /**
     * TODO: move stats to component.
     */
    setupStats: {
      value: function () {
        var statsEnabled = this.getAttribute('stats') === 'true';
        var statsEl = this.statsEl = document.querySelector('.rs-base');
        if (!statsEnabled) {
          if (statsEl) { statsEl.classList.add(HIDDEN_CLASS); }
          return;
        }
        if (statsEl) { statsEl.classList.remove(HIDDEN_CLASS); }
        if (this.stats) { return; }
        this.stats = new RStats({
          CSSPath: '../../style/',
          values: {
            fps: { caption: 'fps', below: 30 }
          },
          groups: [
            { caption: 'Framerate', values: [ 'fps', 'raf' ] }
          ]
        });
        this.statsEl = document.querySelector('.rs-base');
      }
    },

    showUI: {
      value: function () {
        var statsEnabled = this.getAttribute('stats') === 'true';
        if (statsEnabled) {
          this.statsEl.classList.remove(HIDDEN_CLASS);
        }
        if (this.enterVREl) {
          this.enterVREl.classList.remove(HIDDEN_CLASS);
        }
      }
    },

    /**
     * Stops tracking material.
     *
     * @param {object} material
     */
    unregisterMaterial: {
      value: function (material) {
        delete this.materials[material.uuid];
      }
    },

    /**
     * Trigger update to all registered materials.
     */
    updateMaterials: {
      value: function (material) {
        var materials = this.materials;
        Object.keys(materials).forEach(function (uuid) {
          materials[uuid].needsUpdate = true;
        });
      },
      writable: window.debug
    },

    /**
     * @returns {object} Promise that resolves a bool whether loader is in VR
     *          mode.
     */
    vrLoaderMode: {
      value: function () {
        return new Promise(function (resolve) {
          var channel = new MessageChannel();
          window.top.postMessage({type: 'checkVr'}, '*', [channel.port2]);
          channel.port1.onmessage = function (message) {
            resolve(!!message.data.data.isVr);
          };
        });
      }
    },

    /**
     * The render loop.
     *
     * Updates stats.
     * Updates animations.
     * Updates behaviors.
     * Renders with request animation frame.
     */
    render: {
      value: function (t) {
        var camera = this.cameraEl.components.camera.camera;
        var stats = this.stats;

        if (stats) {
          stats('rAF').tick();
          stats('FPS').frame();
        }
        TWEEN.update(t);
        this.behaviors.forEach(function (behavior) {
          behavior.update();
        });
        this.renderer.render(this.object3D, camera);
        if (stats) { stats().update(); }
        this.animationFrameID = window.requestAnimationFrame(
          this.render.bind(this));
      }
    }
  })
});

/**
 * Creates Enter VR flow (button and compatibility modal).
 *
 * Creates a button that when clicked will enter into stereo-rendering mode for VR.
 *
 * For compatibility:
 *   - Mobile always has compatibility via polyfill.
 *   - If desktop browser does not have WebVR excluding polyfill, disable button, show modal.
 *   - If desktop browser has WebVR excluding polyfill but not headset connected,
 *     don't disable button, but show modal.
 *   - If desktop browser has WebVR excluding polyfill and has headset connected, then
 *     then no modal.
 *
 * Structure: <div><modal/><button></div>
 *
 * @returns {Element} Wrapper <div>.
 */
function createEnterVR (enterVRHandler) {
  var compatModal;
  var compatModalLink;
  var compatModalText;
  // window.hasNativeVRSupport is set in src/aframe-core.js.
  var hasWebVR = isMobile || window.hasNonPolyfillWebVRSupport;
  var orientation;
  var vrButton;
  var wrapper;

  // Create elements.
  wrapper = document.createElement('div');
  wrapper.classList.add(ENTER_VR_CLASS);
  compatModal = document.createElement('div');
  compatModal.className = ENTER_VR_MODAL_CLASS;
  compatModalText = document.createElement('p');
  compatModalLink = document.createElement('a');
  compatModalLink.setAttribute('href', 'http://mozvr.com/#start');
  compatModalLink.setAttribute('target', '_blank');
  compatModalLink.innerHTML = 'Learn more.';
  vrButton = document.createElement('button');
  vrButton.className = ENTER_VR_BTN_CLASS;

  // Insert elements.
  if (compatModal) {
    compatModal.appendChild(compatModalText);
    compatModal.appendChild(compatModalLink);
    wrapper.appendChild(compatModal);
  }
  wrapper.appendChild(vrButton);

  if (!checkHeadsetConnected() && !isMobile) {
    compatModalText.innerHTML = 'Your browser supports WebVR. To enter VR, connect a headset, or use a mobile phone.';
    wrapper.setAttribute(ENTER_VR_NO_HEADSET, '');
  }

  // Handle enter VR flows.
  if (!hasWebVR) {
    compatModalText.innerHTML = 'Your browser does not support WebVR. To enter VR, use a VR-compatible browser, or a mobile phone.';
    wrapper.setAttribute(ENTER_VR_NO_WEBVR, '');
  } else {
    vrButton.addEventListener('click', enterVRHandler);
  }
  return wrapper;

  /**
   * Check for headset connection by looking at orientation {0 0 0}.
   */
  function checkHeadsetConnected () {
    controls.update();
    orientation = dummyDolly.quaternion;
    if (orientation._x !== 0 || orientation._y !== 0 || orientation._z !== 0) {
      return true;
    }
  }
}

/**
 * Injects the necessary metatags in the document for mobile support to:
 * 1. Prevent the user to zoom in the document
 * 2. Ensure that window.innerWidth and window.innerHeight have the correct
 *    values and the canvas is properly scaled
 * 3. To allow fullscreen mode when pinning a web app on the home screen on
 *    iOS.
 * Adapted from: https://www.reddit.com/r/web_design/comments/3la04p/
 *
 * @type {Object}
 */
function injectMetaTags () {
  var headEl;
  var meta = document.querySelector('meta[name="viewport"]');
  if (meta) { return; }  // Already exists.

  headEl = document.getElementsByTagName('head')[0];
  meta = document.createElement('meta');
  meta.name = 'viewport';
  meta.content =
    'width=device-width,initial-scale=1,shrink-to-fit=no,user-scalable=no';
  headEl.appendChild(meta);

  // iOS-specific meta tags for fullscreen when pinning to homescreen.
  meta = document.createElement('meta');
  meta.name = 'apple-mobile-web-app-capable';
  meta.content = 'yes';
  headEl.appendChild(meta);

  meta = document.createElement('meta');
  meta.name = 'apple-mobile-web-app-status-bar-style';
  meta.content = 'black';
  headEl.appendChild(meta);
}

},{"../../lib/three":30,"../../lib/vendor/rStats":32,"../../lib/vendor/wakelock/wakelock":34,"../utils/":73,"./a-entity":63,"./a-register-element":66,"tween.js":90}],68:[function(require,module,exports){
var debug = require('../utils/debug');
var styleParser = require('style-attr');
var utils = require('../utils/');

var components = module.exports.components = {};  // Keep track of registered components.
var error = debug('core:register-component:error');

/**
 * Component class definition.
 *
 * Components configure appearance, modify behavior, or add functionality to
 * entities. The behavior and appearance of an entity can be changed at runtime
 * by adding, removing, or updating components. Entities do not share instances
 * of components.
 *
 * @namespace Component
 * @property {object} data - Stores component data, populated by parsing the
 *           attribute name of the component plus applying defaults and mixins.
 * @property {object} el - Reference to the entity element.
 * @property {string} name - Name of the attribute the component is connected
 *           to.
 * @member {Element} el
 * @member {object} data
 * @member {function} getData
 * @member {function} init
 * @member {function} update
 * @member {function} remove
 * @member {function} parse
 * @member {function} stringify
 */
var Component = module.exports.Component = function (el) {
  var attrs = el.getAttribute(this.name);
  this.el = el;
  this.data = {};
  this.parseAttributes(attrs);
  this.init();
  this.update();
};

Component.prototype = {
  /**
   * Contains the type schema and defaults for the data values.
   * Data is coerced into the types of the values of the defaults.
   */
  schema: {},

  /**
   * Init handler. Similar to attachedCallback.
   * Called during component initialization and is only run once.
   * Components can use this to set initial state.
   */
  init: function () { /* no-op */ },

  /**
   * Update handler. Similar to attributeChangedCallback.
   * Called whenever component's data changes.
   * Also called on component initialization when the component receives initial data.
   *
   * @param {object} previousData - Previous attributes of the component.
   */
  update: function (previousData) { /* no-op */ },

  /**
   * Remove handler. Similar to detachedCallback.
   * Called whenever component is removed from the entity (i.e., removeAttribute).
   * Components can use this to reset behavior on the entity.
   */
  remove: function () { /* no-op */ },

  /**
   * Describes how the component should deserialize HTML attribute into data.
   * Can be overridden by the component.
   *
   * The default parsing is parsing style-like strings, camelCasing keys for
   * error-tolerance (`max-value` ~= `maxValue`).
   *
   * @param {string} value - HTML attribute.
   * @returns {object} Data.
   */
  parse: function (value) {
    if (typeof value !== 'string') { return value; }
    return transformKeysToCamelCase(styleParser.parse(value));
  },

  /**
   * Describes how the component should serialize data to a string to update the DOM.
   * Can be overridden by the component.
   *
   * The default stringify is to a style-like string.
   *
   * @param {object} data
   * @returns {string}
   */
  stringify: function (data) {
    if (typeof data !== 'object') { return data; }
    return styleParser.stringify(data);
  },

  /**
   * Returns a copy of data such that we don't expose the private this.data.
   *
   * @returns {object} data
   */
  getData: function () {
    var data = this.data;
    if (typeof data !== 'object') { return data; }
    return utils.extend({}, data);
  },

  /**
   * Called when new data is coming from the entity (e.g., attributeChangedCb)
   * or from its mixins. Does some parsing and applying before updating the
   * component.
   * Does not update if data has not changed.
   */
  updateAttributes: function (newData) {
    var previousData = extendWithCheck({}, this.data);
    this.parseAttributes(newData);
    // Don't update if properties haven't changed
    if (utils.deepEqual(previousData, this.data)) { return; }
    this.update(previousData);
    this.el.emit('componentchanged', {
      name: this.name,
      newData: this.getData(),
      oldData: previousData
    });
  },

  /**
   * Builds component data from the current state of the entity, ultimately
   * updating this.data.
   *
   * If the component was detached completely, set data to null.
   *
   * Precedence:
   * 1. Defaults data
   * 2. Mixin data.
   * 3. Attribute data.
   * Finally coerce the data to the types of the defaults.
   */
  parseAttributes: function (newData) {
    var self = this;
    var data = {};
    var schema = self.schema;
    var el = self.el;
    var mixinEls = el.mixinEls;
    var name = self.name;

    // 1. Default values (lowest precendence).
    Object.keys(schema).forEach(applyDefault);
    function applyDefault (key) {
      data[key] = schema[key].default;
    }

    // 2. Mixin values.
    mixinEls.forEach(applyMixin);
    function applyMixin (mixinEl) {
      var mixinData = mixinEl.getAttribute(name);
      data = extendWithCheck(data, mixinData);
    }

    // 3. Attribute values (highest precendence).
    data = extendWithCheck(data, newData);

    // Coerce to the type of the defaults.
    this.data = utils.coerce(data, schema);
  }
};

/**
 * Registers a component to A-Frame.
 *
 * @param {string} name - Component name.
 * @param {object} definition - Component property and methods.
 * @returns {object} Component.
 */
module.exports.registerComponent = function (name, definition) {
  var NewComponent;
  var proto = {};

  // Format definition object to prototype object.
  Object.keys(definition).forEach(function (key) {
    proto[key] = {
      value: definition[key],
      writable: window.debug
    };
  });

  if (components[name]) {
    error('The component "' + name + '" has been already registered');
  }
  NewComponent = function (el) {
    Component.call(this, el);
  };
  NewComponent.prototype = Object.create(Component.prototype, proto);
  NewComponent.prototype.name = name;
  NewComponent.prototype.constructor = NewComponent;
  components[name] = {
    Component: NewComponent,
    dependencies: NewComponent.prototype.dependencies,
    parse: NewComponent.prototype.parse.bind(NewComponent.prototype),
    schema: NewComponent.prototype.schema,
    stringify: NewComponent.prototype.stringify.bind(NewComponent.prototype)
  };
  return NewComponent;
};

/**
* Object extending, but checks if `source` is an object first.
* If not, `source` is a primitive and we don't do any extending.
*
* @param dest - Destination object or value.
* @param source - Source object or value
* @returns Overridden object or value.
*/
function extendWithCheck (dest, source) {
  var isSourceObject = typeof source === 'object';
  if (source === null) { return dest; }
  if (!isSourceObject) {
    if (source === undefined) { return dest; }
    return source;
  }
  return utils.extend(dest, source);
}

/**
 * Converts string from hyphen to camelCase.
 *
 * @param {string} str - String to camelCase.
 * @return {string} CamelCased string.
 */
function toCamelCase (str) {
  return str.replace(/-([a-z])/g, camelCase);
  function camelCase (g) { return g[1].toUpperCase(); }
}

/**
 * Converts object's keys from hyphens to camelCase (e.g., `max-value` to
 * `maxValue`).
 *
 * @param {object} obj - The object to camelCase keys.
 * @return {object} The object with keys camelCased.
 */
function transformKeysToCamelCase (obj) {
  var keys = Object.keys(obj);
  var camelCaseObj = {};
  keys.forEach(function (key) {
    var camelCaseKey = toCamelCase(key);
    camelCaseObj[camelCaseKey] = obj[key];
  });
  return camelCaseObj;
}

},{"../utils/":73,"../utils/debug":72,"style-attr":89}],69:[function(require,module,exports){
require('es6-promise').polyfill();  // Polyfill `Promise`.
require('present');  // Polyfill `performance.now()`.

require('../style/aframe-core.css');
require('../style/rStats.css');

// Required before `AEntity` so that all components are registered.
var AScene = require('./core/a-scene');
var components = require('./core/component').components;
var debug = require('./utils/debug');
var registerComponent = require('./core/component').registerComponent;
var registerElement = require('./core/a-register-element');
// Exports THREE to window so three.js can be used without alteration.
var THREE = window.THREE = require('../lib/three');

var pkg = require('../package');
var utils = require('./utils/');

require('./components/index');  // Register core components.
var ANode = require('./core/a-node');
var AEntity = require('./core/a-entity');  // Depends on ANode and core components.

// Webvr polyfill configuration.
window.hasNonPolyfillWebVRSupport = !!navigator.getVRDevices;
window.WebVRConfig = {
  TOUCH_PANNER_DISABLED: true,
  MOUSE_KEYBOARD_CONTROLS_DISABLED: true
};
require('webvr-polyfill');

require('./core/a-animation');
require('./core/a-assets');
require('./core/a-cubemap');
require('./core/a-mixin');
require('./core/a-scene');

module.exports = {
  AEntity: AEntity,
  ANode: ANode,
  AScene: AScene,
  components: components,
  debug: debug,
  registerComponent: registerComponent,
  registerElement: registerElement,
  THREE: THREE,
  utils: utils,
  version: pkg.version
};

},{"../lib/three":30,"../package":41,"../style/aframe-core.css":75,"../style/rStats.css":76,"./components/index":46,"./core/a-animation":60,"./core/a-assets":61,"./core/a-cubemap":62,"./core/a-entity":63,"./core/a-mixin":64,"./core/a-node":65,"./core/a-register-element":66,"./core/a-scene":67,"./core/component":68,"./utils/":73,"./utils/debug":72,"es6-promise":83,"present":85,"webvr-polyfill":40}],70:[function(require,module,exports){
var coordinates = require('./coordinates');
var utils = require('./index');

/**
 * If `value` is object, coerce values of `val` into types defined by `schema`.
 * If `value` is string and `schemaAttr` defined, coerces `value` into the value in `schema`
 * pointed to by `schemaAttr`.
 *
 * @param {object|string} value - value(s) to coerce.
 * @param {object} schema - Object which values will be used to coerce to.
 * @param {string} schemaAttr -
 *   In case `value` is a string, `schemaAttr` signifies which value in `schema` to coerce to.
 * @returns Coerced value or object.
 */
module.exports = function (value, schema, schemaAttr) {
  var obj = value;

  // Batch coerce.
  if (typeof value === 'object') {
    Object.keys(obj).forEach(function (key) {
      var attrSchema = schema[key];
      var schemaValue;
      if (!attrSchema) {
        utils.warn('Unknown component attribute: ' + key);
        return;
      }
      schemaValue = attrSchema.default;
      if (schemaValue === undefined) { return; }
      obj[key] = coerceValue(obj[key], schemaValue);
    });
    return obj;
  }

  // Handle case: string.
  return coerceValue(value, schema.default);

  function coerceValue (value, targetValue) {
    if (typeof value !== 'string') { return value; }

    switch (typeof targetValue) {
      case 'boolean':
        return value === 'true';
      case 'number':
        return parseFloat(value);
      case 'object':
        if (utils.deepEqual(Object.keys(targetValue), ['x', 'y', 'z'])) {
          return coordinates.parse(value);
        }
        return value;
      default:
        return value;
    }
  }
};

},{"./coordinates":71,"./index":73}],71:[function(require,module,exports){
// Coordinate string regex. Handles negative, positive, and decimals.
var regex = /\s*(-?\d*\.{0,1}\d+)\s*(-?\d*\.{0,1}\d+)\s*(-?\d*\.{0,1}\d+)\s*/;
module.exports.regex = regex;

/**
 * Parses coordinates from an "x y z" string.
 * Example: "3 10 -5" to {x: 3, y: 10, z: -5}.
 *
 * @param {string} val - An "x y z" string.
 * @param {string} defaults - fallback value.
 * @returns {object} An object with keys [x, y, z].
 */
function parse (value, schema) {
  var coordinate;
  schema = schema || {};
  if (typeof value !== 'string' || value === null) { return value; }
  coordinate = value.trim().replace(/\s+/g, ' ').split(' ');
  return {
    x: parseFloat(coordinate[0] || schema.x.default),
    y: parseFloat(coordinate[1] || schema.y.default),
    z: parseFloat(coordinate[2] || schema.z.default)
  };
}
module.exports.parse = parse;

/**
 * Stringifies coordinates from an object with keys [x y z].
 * Example: {x: 3, y: 10, z: -5} to "3 10 -5".
 *
 * @param {object|string} val - An object with keys [x y z].
 * @returns {string} An "x y z" string.
 */
function stringify (value) {
  if (typeof value !== 'object') { return value; }
  return [value.x, value.y, value.z].join(' ');
}
module.exports.stringify = stringify;

/**
 * @returns {bool}
 */
module.exports.isCoordinate = function (value) {
  return regex.test(value);
};

/**
 * Prototype mixin for coordinate-only components.
 */
module.exports.componentMixin = {
  parse: function (value) {
    return parse(value, this.schema);
  },

  stringify: stringify
};

},{}],72:[function(require,module,exports){
(function (process){
var debugLib = require('debug');
var extend = require('object-assign');

var settings = {
  colors: {
    error: 'red',
    info: 'gray',
    warn: 'orange',
    warning: 'orange'
  }
};

/**
 * Monkeypatches `debug` so we can colorize error/warning messages.
 *
 * (See issue: https://github.com/visionmedia/debug/issues/137)
 */
var debug = function (namespace) {
  var d = debugLib(namespace);

  d.color = getDebugNamespaceColor(namespace);

  return d;
};
extend(debug, debugLib);

/**
 * Returns the type of the namespace (e.g., `error`, `warn`).
 *
 * @param {String} namespace
 *   The debug logger's namespace (e.g., `components:geometry:warn`).
 * @returns {String} The type of the namespace (e.g., `warn`).
 * @api private
 */
function getDebugNamespaceType (namespace) {
  var chunks = namespace.split(':');

  return chunks[chunks.length - 1];  // Return the last one
}

/**
 * Returns the color of the namespace (e.g., `orange`).
 *
 * @param {String} namespace
 *   The debug logger's namespace (e.g., `components:geometry:warn`).
 * @returns {String} The color of the namespace (e.g., `orange`).
 * @api private
 */
function getDebugNamespaceColor (namespace) {
  var type = getDebugNamespaceType(namespace);

  var color = settings.colors && settings.colors[type];

  return color || null;
}

/**
 * Returns `localStorage` if possible.
 *
 * This is necessary because Safari throws when a user disables
 * cookies or `localStorage` and you attempt to access it.
 *
 * @returns {localStorage}
 * @api private
 */
function storage () {
  try {
    return window.localStorage;
  } catch (e) {
  }
}

/**
 * To enable console logging, type this in the Console of your Dev Tools:
 *
 *   localStorage.logs = 1
 *
 * To disable console logging:
 *
 *   localStorage.logs = 0
 *
 */
var ls = storage();
if (ls && (parseInt(ls.logs, 10) || ls.logs === 'true')) {
  debug.enable('*');
} else {
  // We do not call `debug.disable` because it requires two reloads to take.
  // See https://github.com/visionmedia/debug/issues/238
  // Instead, we call `debug.save` to remove the `debug` namespaces persisted
  // in `localStorage`.
  debug.save(null);
  // And then we `noop` the function so nothing happens.
  debug = function () {
    /* noop */
    return function () {};
  };
}

if (process.browser) { window.logs = debug; }

module.exports = debug;

}).call(this,require('_process'))

},{"_process":78,"debug":79,"object-assign":84}],73:[function(require,module,exports){
/* global CustomEvent, location */
/* Centralized place to reference utilities since utils is exposed to the user. */
var objectAssign = require('object-assign');

module.exports.coerce = require('./coerce');
module.exports.coordinates = require('./coordinates');

/**
 * Fires a custom DOM event.
 *
 * @param {Element} el Element on which to fire the event.
 * @param {String} name Name of the event.
 * @param {Object=} [data={bubbles: true, {detail: <el>}}]
 *   Data to pass as `customEventInit` to the event.
 */
module.exports.fireEvent = function (el, name, data) {
  data = data || {};
  data.detail = data.detail || {};
  data.detail.target = data.detail.target || el;
  var evt = new CustomEvent(name, data);
  evt.target = el;
  el.dispatchEvent(evt);
};

/**
 * Throws an error given a message.
 *
 * @param {String} msg Error message.
 */
module.exports.error = function (msg) {
  throw new Error(msg);
};

/**
 * Emits a console warning given passed message argument(s).
 */
module.exports.warn = function () {
  console.warn.apply(console, arguments);
};

/**
 * Emits a console log given passed message argument(s).
 */
module.exports.log = function () {
  console.log.apply(console, arguments);
};

/**
 * Mix the properties of source object(s) into a destination object.
 *
 * @param  {object} dest - The object to which properties will be copied.
 * @param  {...object} source - The object(s) from which properties will be copied.
 */
module.exports.extend = objectAssign;

/**
 * Checks if two objects have the same attributes and values, including nested objects.
 *
 * @param {object} a - First object.
 * @param {object} b - Second object.
 * @returns {boolean} Whether two objects are deeply equal.
 */
function deepEqual (a, b) {
  var keysA = Object.keys(a);
  var keysB = Object.keys(b);
  var i;
  if (keysA.length !== keysB.length) { return false; }
  // If there are no keys, compare the objects.
  if (keysA.length === 0) { return a === b; }
  for (i = 0; i < keysA.length; ++i) {
    if (a[keysA[i]] !== b[keysA[i]]) { return false; }
  }
  return true;
}
module.exports.deepEqual = deepEqual;

/**
 * Computes the difference between two objects.
 *
 * @param {object} a - First object to compare (e.g., oldData).
 * @param {object} b - Second object to compare (e.g., newData).
 * @returns {object}
 *   Difference object where set of keys note which values were not equal, and values are
 *   `b`'s values.
 */
module.exports.diff = function (a, b) {
  var diff = {};
  var keys = Object.keys(a);
  Object.keys(b).forEach(function collectKeys (bKey) {
    if (keys.indexOf(bKey) === -1) {
      keys.push(bKey);
    }
  });
  keys.forEach(function doDiff (key) {
    var aVal = a[key];
    var bVal = b[key];
    var isComparingObjects = aVal && bVal &&
                             aVal.constructor === Object && bVal.constructor === Object;
    if ((isComparingObjects && !deepEqual(aVal, bVal)) ||
        (!isComparingObjects && aVal !== bVal)) {
      diff[key] = bVal;
    }
  });
  return diff;
};

/**
 * Checks if browser is mobile.
 * @return {Boolean} True if mobile browser detected.
 */
module.exports.isMobile = function () {
  var check = false;
  (function (a) {
    if (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0, 4))) {
      check = true;
    }
    if (isIOS()) {
      check = true;
    }
  })(navigator.userAgent || navigator.vendor || window.opera);
  return check;
};

var isIOS = module.exports.isIOS = function () {
  return /iPad|iPhone|iPod/.test(navigator.platform);
};

/**
 * Checks mobile device orientation
 * @return {Boolean} True if landscape orientation
 */
module.exports.isLandscape = function () {
  return window.orientation === 90 || window.orientation === -90;
};

/**
 * Splits a string into an array based on a delimiter.
 *
 * @param   {string=} [str='']        Source string
 * @param   {string=} [delimiter=' '] Delimiter to use
 * @returns {array}                   Array of delimited strings
 */
module.exports.splitString = function (str, delimiter) {
  if (typeof delimiter === 'undefined') { delimiter = ' '; }
  // First collapse the whitespace (or whatever the delimiter is).
  var regex = new RegExp(delimiter, 'g');
  str = (str || '').replace(regex, delimiter);
  // Then split.
  return str.split(delimiter);
};

/**
 * Extracts data from the element given an object that contains expected keys.
 *
 * @param {Element} Source element.
 * @param {Object} [defaults={}] Object of default key-value pairs.
 * @returns {Object}
 */
module.exports.getElData = function (el, defaults) {
  defaults = defaults || {};
  var data = {};
  Object.keys(defaults).forEach(copyAttribute);
  function copyAttribute (key) {
    if (el.hasAttribute(key)) {
      data[key] = el.getAttribute(key);
    }
  }
  return data;
};

/**
 * Retrieves querystring value.
 * @param  {String} name Name of querystring key.
 * @return {String}      Value
 */
module.exports.getUrlParameter = function (name) {
  name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
  var regex = new RegExp('[\\?&]' + name + '=([^&#]*)');
  var results = regex.exec(location.search);
  return results === null ? '' : decodeURIComponent(results[1].replace(/\+/g, ' '));
};

// Must be at bottom to avoid circular dependency.
module.exports.srcLoader = require('./src-loader');

},{"./coerce":70,"./coordinates":71,"./src-loader":74,"object-assign":84}],74:[function(require,module,exports){
/* global Image */
var debug = require('./debug');

var warn = debug('utils:src-loader:warn');

/**
 * Validates a texture, either as a selector or as a URL.
 * Detects whether `src` is pointing to an image or to a video, and invokes the
 * appropriate callback.
 *
 * If `src` is selector, check if it's valid, return the el in the callback.
 * An el is returned so that it can be reused for texture loading.
 *
 * If `src` is a URL, check if it's valid, return the src in the callback.
 *
 * @params {string} src - A selector or a URL. URLs must be wrapped by `url()`.
 * @params {function} isImageCb - callback if texture is an image.
 * @params {function} isVideoCb - callback if texture is a video.
 */
function validateSrc (src, isImageCb, isVideoCb) {
  var textureEl;
  var isImage;
  var isVideo;
  var url = parseUrl(src);

  // src is a url.
  if (url) {
    validateImageUrl(url, function isAnImageUrl (isImage) {
      if (!isImage) { isVideoCb(url); return; }
      isImageCb(url);
    });
    return;
  }

  // src is a query selector.
  textureEl = validateAndGetQuerySelector(src);
  if (!textureEl) { return; }
  isImage = textureEl && textureEl.tagName === 'IMG';
  isVideo = textureEl && textureEl.tagName === 'VIDEO';
  if (isImage) { return isImageCb(textureEl); }
  if (isVideo) { return isVideoCb(textureEl); }

  // src is a valid selector but doesn't match with a <img> or <video> element.
  warn('"%s" does not point to a valid <img> or <video> element', src);
}

/**
 * Validates six images as a cubemap, either as selector or comma-separated
 * URLs.
 *
 * @param {string} src - A selector or comma-separated image URLs. Image URLs
          must be wrapped by `url()`.
 * @param {string} src - A selector or comma-separated image URLs. Image URLs
          must be wrapped by `url()`.
 */
function validateCubemapSrc (src, cb) {
  var aCubemap;
  var cubemapSrcRegex = '';
  var i;
  var urls;
  var validatedUrls = [];

  for (i = 0; i < 6; i++) {
    cubemapSrcRegex += 'url\((.+)\)\s*,\s*';
  }
  urls = src.match(cubemapSrcRegex);

  // `src` is a comma-separated list of URLs.
  // In this case, re-use validateSrc for each side of the cube.
  function isImageCb (url) {
    validatedUrls.push(url);
    if (validatedUrls.length === 6) {
      cb(validatedUrls);
    }
  }
  if (urls) {
    for (i = 1; i < 7; i++) {
      validateSrc(urls[i], isImageCb);
    }
    return;
  }

  // `src` is a query selector to <a-cubemap> containing six $([src])s.
  aCubemap = validateAndGetQuerySelector(src);
  if (!aCubemap) { return; }
  if (aCubemap.tagName === 'A-CUBEMAP' && aCubemap.srcs) {
    return cb(aCubemap.srcs);
  }
  // Else if aCubeMap is not a <a-cubemap>.
  warn('Selector "%s" does not point to <a-cubemap>', src);
}

/**
 * Parses src from `url(src)`.
 * @param  {string} src - String to parse.
 * @return {string} The parsed src, if parseable.
 */
function parseUrl (src) {
  var parsedSrc = src.match(/\url\((.+)\)/);
  if (!parsedSrc) { return; }
  return parsedSrc[1];
}

/**
 * Validate src is a valid image url
 * @param  {string} src - url that will be tested
 * @param  {function} onResult - callback with the test result
 */
function validateImageUrl (src, onResult) {
  var tester = new Image();
  tester.addEventListener('load', onLoad);
  function onLoad () { onResult(true); }
  tester.addEventListener('error', onError);
  function onError () { onResult(false); }
  tester.src = src;
}

/**
 * Query and validate a query selector,
 *
 * @param  {string} selector - DOM selector.
 * @return {object|null|undefined} Selected DOM element if exists.
           null if query yields no results.
           undefined if `selector` is not a valid selector.
 */
function validateAndGetQuerySelector (selector) {
  try {
    var el = document.querySelector(selector);
    if (!el) {
      warn('No element was found matching the selector: "%s"', selector);
    }
    return el;
  } catch (e) {  // Capture exception if it's not a valid selector.
    warn('"%s" is not a valid selector', selector);
    return undefined;
  }
}

module.exports = {
  parseUrl: parseUrl,
  validateSrc: validateSrc,
  validateCubemapSrc: validateCubemapSrc
};

},{"./debug":72}],75:[function(require,module,exports){
var css = "html {\n  bottom: 0;\n  left: 0;\n  position: fixed;\n  right: 0;\n  top: 0;\n}\nbody {\n  height: 100%;\n  margin: 0;\n  overflow: hidden;\n  padding: 0;\n  width: 100%;\n}\n.a-hidden {\n  display: none !important;\n}\n.a-canvas {\n  height: 100%;\n  left: 0;\n  position: absolute;\n  top: 0;\n  width: 100%;\n}\na-assets,\na-scene video,\na-scene img {\n  display: none;\n}\n.a-enter-vr {\n  align-items: flex-end;\n  -webkit-align-items: flex-end;\n  bottom: 5px;\n  display: flex;\n  display: -webkit-flex;\n  font-family: sans-serif, monospace;\n  font-size: 13px;\n  font-weight: 200;\n  line-height: 16px;\n  height: 72px;\n  position: fixed;\n  right: 5px;\n}\n.a-enter-vr-button {\n  background: rgba(0, 0, 0, 0.35) url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20245.82%20141.73%22%3E%3Cdefs%3E%3Cstyle%3E.a%7Bfill%3A%23fff%3Bfill-rule%3Aevenodd%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctitle%3Emask%3C%2Ftitle%3E%3Cpath%20class%3D%22a%22%20d%3D%22M175.56%2C111.37c-22.52%2C0-40.77-18.84-40.77-42.07S153%2C27.24%2C175.56%2C27.24s40.77%2C18.84%2C40.77%2C42.07S198.08%2C111.37%2C175.56%2C111.37ZM26.84%2C69.31c0-23.23%2C18.25-42.07%2C40.77-42.07s40.77%2C18.84%2C40.77%2C42.07-18.26%2C42.07-40.77%2C42.07S26.84%2C92.54%2C26.84%2C69.31ZM27.27%2C0C11.54%2C0%2C0%2C12.34%2C0%2C28.58V110.9c0%2C16.24%2C11.54%2C30.83%2C27.27%2C30.83H99.57c2.17%2C0%2C4.19-1.83%2C5.4-3.7L116.47%2C118a8%2C8%2C0%2C0%2C1%2C12.52-.18l11.51%2C20.34c1.2%2C1.86%2C3.22%2C3.61%2C5.39%2C3.61h72.29c15.74%2C0%2C27.63-14.6%2C27.63-30.83V28.58C245.82%2C12.34%2C233.93%2C0%2C218.19%2C0H27.27Z%22%2F%3E%3C%2Fsvg%3E) 50% 50% no-repeat;\n  background-size: 70% 70%;\n  border: 0;\n  bottom: 0;\n  color: #FFF;\n  cursor: pointer;\n  height: 50px;\n  transition: background .05s ease;\n  -webkit-transition: background .05s ease;\n  width: 60px;\n  z-index: 999999;\n}\n.a-enter-vr-button:active,\n.a-enter-vr-button:hover {\n  background-color: #666666;\n}\n[data-a-enter-vr-no-webvr] .a-enter-vr-button {\n  border-color: #666666;\n  opacity: 0.65;\n}\n[data-a-enter-vr-no-webvr] .a-enter-vr-button:active,\n[data-a-enter-vr-no-webvr] .a-enter-vr-button:hover {\n  background-color: rgba(0, 0, 0, .35);\n  cursor: not-allowed;\n}\n.a-enter-vr-modal {\n  background-color: #666666;\n  border-radius: 0;\n  color: #FFF;\n  height: 32px;\n  opacity: 0;\n  margin-right: 10px;\n  padding: 9px;\n  width: 280px;\n  position: relative;\n  transition: opacity .05s ease;\n  -webkit-transition: opacity .05s ease;\n}\n.a-enter-vr-modal:after {\n  border-bottom: 10px solid transparent;\n  border-left: 10px solid #666666;\n  border-top: 10px solid transparent;\n  display: inline-block;\n  content: '';\n  position: absolute;\n  right: -5px;\n  top: 5px;\n  width: 0;\n  height: 0;\n}\n.a-enter-vr-modal p {\n  margin: 0;\n  display: inline;\n}\n.a-enter-vr-modal p:after {\n  content: ' ';\n}\n.a-enter-vr-modal a {\n  color: #FFF;\n  display: inline;\n}\n[data-a-enter-vr-no-webvr]:hover .a-enter-vr-modal,\n[data-a-enter-vr-no-headset]:hover .a-enter-vr-modal {\n  opacity: 1;\n}\n.a-orientation-modal {\n  position: absolute;\n  width: 100%;\n  height: 100%;\n  top: 0;\n  left: 0;\n  background: rgba(244, 244, 244, 1) url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20xmlns%3Axlink%3D%22http%3A//www.w3.org/1999/xlink%22%20version%3D%221.1%22%20x%3D%220px%22%20y%3D%220px%22%20viewBox%3D%220%200%2090%2090%22%20enable-background%3D%22new%200%200%2090%2090%22%20xml%3Aspace%3D%22preserve%22%3E%3Cpolygon%20points%3D%220%2C0%200%2C0%200%2C0%20%22%3E%3C/polygon%3E%3Cg%3E%3Cpath%20d%3D%22M71.545%2C48.145h-31.98V20.743c0-2.627-2.138-4.765-4.765-4.765H18.456c-2.628%2C0-4.767%2C2.138-4.767%2C4.765v42.789%20%20%20c0%2C2.628%2C2.138%2C4.766%2C4.767%2C4.766h5.535v0.959c0%2C2.628%2C2.138%2C4.765%2C4.766%2C4.765h42.788c2.628%2C0%2C4.766-2.137%2C4.766-4.765V52.914%20%20%20C76.311%2C50.284%2C74.173%2C48.145%2C71.545%2C48.145z%20M18.455%2C16.935h16.344c2.1%2C0%2C3.808%2C1.708%2C3.808%2C3.808v27.401H37.25V22.636%20%20%20c0-0.264-0.215-0.478-0.479-0.478H16.482c-0.264%2C0-0.479%2C0.214-0.479%2C0.478v36.585c0%2C0.264%2C0.215%2C0.478%2C0.479%2C0.478h7.507v7.644%20%20%20h-5.534c-2.101%2C0-3.81-1.709-3.81-3.81V20.743C14.645%2C18.643%2C16.354%2C16.935%2C18.455%2C16.935z%20M16.96%2C23.116h19.331v25.031h-7.535%20%20%20c-2.628%2C0-4.766%2C2.139-4.766%2C4.768v5.828h-7.03V23.116z%20M71.545%2C73.064H28.757c-2.101%2C0-3.81-1.708-3.81-3.808V52.914%20%20%20c0-2.102%2C1.709-3.812%2C3.81-3.812h42.788c2.1%2C0%2C3.809%2C1.71%2C3.809%2C3.812v16.343C75.354%2C71.356%2C73.645%2C73.064%2C71.545%2C73.064z%22%3E%3C/path%3E%3Cpath%20d%3D%22M28.919%2C58.424c-1.466%2C0-2.659%2C1.193-2.659%2C2.66c0%2C1.466%2C1.193%2C2.658%2C2.659%2C2.658c1.468%2C0%2C2.662-1.192%2C2.662-2.658%20%20%20C31.581%2C59.617%2C30.387%2C58.424%2C28.919%2C58.424z%20M28.919%2C62.786c-0.939%2C0-1.703-0.764-1.703-1.702c0-0.939%2C0.764-1.704%2C1.703-1.704%20%20%20c0.94%2C0%2C1.705%2C0.765%2C1.705%2C1.704C30.623%2C62.022%2C29.858%2C62.786%2C28.919%2C62.786z%22%3E%3C/path%3E%3Cpath%20d%3D%22M69.654%2C50.461H33.069c-0.264%2C0-0.479%2C0.215-0.479%2C0.479v20.288c0%2C0.264%2C0.215%2C0.478%2C0.479%2C0.478h36.585%20%20%20c0.263%2C0%2C0.477-0.214%2C0.477-0.478V50.939C70.131%2C50.676%2C69.917%2C50.461%2C69.654%2C50.461z%20M69.174%2C51.417V70.75H33.548V51.417H69.174z%22%3E%3C/path%3E%3Cpath%20d%3D%22M45.201%2C30.296c6.651%2C0%2C12.233%2C5.351%2C12.551%2C11.977l-3.033-2.638c-0.193-0.165-0.507-0.142-0.675%2C0.048%20%20%20c-0.174%2C0.198-0.153%2C0.501%2C0.045%2C0.676l3.883%2C3.375c0.09%2C0.075%2C0.198%2C0.115%2C0.312%2C0.115c0.141%2C0%2C0.273-0.061%2C0.362-0.166%20%20%20l3.371-3.877c0.173-0.2%2C0.151-0.502-0.047-0.675c-0.194-0.166-0.508-0.144-0.676%2C0.048l-2.592%2C2.979%20%20%20c-0.18-3.417-1.629-6.605-4.099-9.001c-2.538-2.461-5.877-3.817-9.404-3.817c-0.264%2C0-0.479%2C0.215-0.479%2C0.479%20%20%20C44.72%2C30.083%2C44.936%2C30.296%2C45.201%2C30.296z%22%3E%3C/path%3E%3C/g%3E%3C/svg%3E);\n  background-size: 50% 50%;\n  background-repeat: no-repeat;\n  background-position: center center;\n}\n.a-orientation-modal:after {\n  content: \"Insert phone into Cardboard holder.\";\n  color: #333;\n  font-family: sans-serif, monospace;\n  font-size: 13px;\n  text-align: center;\n  position: absolute;\n  width: 100%;\n  top: 70%;\n  transform: translateY(-70%);\n}\n.a-orientation-modal button {\n  background: url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20xmlns%3Axlink%3D%22http%3A//www.w3.org/1999/xlink%22%20version%3D%221.1%22%20x%3D%220px%22%20y%3D%220px%22%20viewBox%3D%220%200%20100%20100%22%20enable-background%3D%22new%200%200%20100%20100%22%20xml%3Aspace%3D%22preserve%22%3E%3Cpath%20fill%3D%22%23000000%22%20d%3D%22M55.209%2C50l17.803-17.803c1.416-1.416%2C1.416-3.713%2C0-5.129c-1.416-1.417-3.713-1.417-5.129%2C0L50.08%2C44.872%20%20L32.278%2C27.069c-1.416-1.417-3.714-1.417-5.129%2C0c-1.417%2C1.416-1.417%2C3.713%2C0%2C5.129L44.951%2C50L27.149%2C67.803%20%20c-1.417%2C1.416-1.417%2C3.713%2C0%2C5.129c0.708%2C0.708%2C1.636%2C1.062%2C2.564%2C1.062c0.928%2C0%2C1.856-0.354%2C2.564-1.062L50.08%2C55.13l17.803%2C17.802%20%20c0.708%2C0.708%2C1.637%2C1.062%2C2.564%2C1.062s1.856-0.354%2C2.564-1.062c1.416-1.416%2C1.416-3.713%2C0-5.129L55.209%2C50z%22%3E%3C/path%3E%3C/svg%3E);\n  width: 50px;\n  height: 50px;\n  border: none;\n  text-indent: -9999px;\n}\n@media (min-width: 480px) {\n  .a-enter-vr {\n    bottom: 20px;\n    right: 20px;\n  }\n\n  .a-enter-vr-modal {\n    width: 400px;\n  }\n}\n"; (require("browserify-css").createStyle(css, { "href": "node_modules/aframe-core/style/aframe-core.css"})); module.exports = css;
},{"browserify-css":77}],76:[function(require,module,exports){
var css = ".rs-base {\n  background-color: #EF2D5E;\n  border-radius: 0;\n  font-family: 'Roboto Condensed', tahoma, sans-serif;\n  font-size: 10px;\n  line-height: 1.2em;\n  opacity: 0.75;\n  overflow: hidden;\n  padding: 10px;\n  position: fixed;\n  left: 5px;\n  top: 5px;\n  width: 270px;\n  z-index: 10000;\n}\n.rs-base.hidden {\n  display: none;\n}\n.rs-base h1 {\n  color: #fff;\n  cursor: pointer;\n  font-size: 1.4em;\n  font-weight: 300;\n  margin: 0 0 5px;\n  padding: 0;\n}\n.rs-group {\n  display: -webkit-box;\n  display: -webkit-flex;\n  display: flex;\n  -webkit-flex-direction: column-reverse;\n  flex-direction: column-reverse;\n}\n.rs-counter-base {\n  align-items: center;\n  display: -webkit-box;\n  display: -webkit-flex;\n  display: flex;\n  height: 10px;\n  -webkit-justify-content: space-between;\n  justify-content: space-between;\n  margin: 2px 0;\n}\n.rs-counter-id {\n  font-weight: 300;\n  -webkit-box-ordinal-group: 0;\n  -webkit-order: 0;\n  order: 0;\n}\n.rs-counter-value {\n  font-weight: 300;\n  -webkit-box-ordinal-group: 1;\n  -webkit-order: 1;\n  order: 1;\n  text-align: right;\n  width: 25px;\n}\n.rs-canvas {\n  -webkit-box-ordinal-group: 2;\n  -webkit-order: 2;\n  order: 2;\n}\n@media (min-width: 480px) {\n  .rs-base {\n    left: 20px;\n    top: 20px;\n  }\n}\n"; (require("browserify-css").createStyle(css, { "href": "node_modules/aframe-core/style/rStats.css"})); module.exports = css;
},{"browserify-css":77}],77:[function(require,module,exports){
'use strict';
// For more information about browser field, check out the browser field at https://github.com/substack/browserify-handbook#browser-field.

module.exports = {
    // Create a <link> tag with optional data attributes
    createLink: function(href, attributes) {
        var head = document.head || document.getElementsByTagName('head')[0];
        var link = document.createElement('link');

        link.href = href;
        link.rel = 'stylesheet';

        for (var key in attributes) {
            if ( ! attributes.hasOwnProperty(key)) {
                continue;
            }
            var value = attributes[key];
            link.setAttribute('data-' + key, value);
        }

        head.appendChild(link);
    },
    // Create a <style> tag with optional data attributes
    createStyle: function(cssText, attributes) {
        var head = document.head || document.getElementsByTagName('head')[0],
            style = document.createElement('style');

        style.type = 'text/css';

        for (var key in attributes) {
            if ( ! attributes.hasOwnProperty(key)) {
                continue;
            }
            var value = attributes[key];
            style.setAttribute('data-' + key, value);
        }
        
        if (style.sheet) { // for jsdom and IE9+
            style.innerHTML = cssText;
            style.sheet.cssText = cssText;
            head.appendChild(style);
        } else if (style.styleSheet) { // for IE8 and below
            head.appendChild(style);
            style.styleSheet.cssText = cssText;
        } else { // for Chrome, Firefox, and Safari
            style.appendChild(document.createTextNode(cssText));
            head.appendChild(style);
        }
    }
};

},{}],78:[function(require,module,exports){
// shim for using process in browser

var process = module.exports = {};
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
    draining = false;
    if (currentQueue.length) {
        queue = currentQueue.concat(queue);
    } else {
        queueIndex = -1;
    }
    if (queue.length) {
        drainQueue();
    }
}

function drainQueue() {
    if (draining) {
        return;
    }
    var timeout = setTimeout(cleanUpNextTick);
    draining = true;

    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        while (++queueIndex < len) {
            if (currentQueue) {
                currentQueue[queueIndex].run();
            }
        }
        queueIndex = -1;
        len = queue.length;
    }
    currentQueue = null;
    draining = false;
    clearTimeout(timeout);
}

process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
    if (arguments.length > 1) {
        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }
    }
    queue.push(new Item(fun, args));
    if (queue.length === 1 && !draining) {
        setTimeout(drainQueue, 0);
    }
};

// v8 likes predictible objects
function Item(fun, array) {
    this.fun = fun;
    this.array = array;
}
Item.prototype.run = function () {
    this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };

},{}],79:[function(require,module,exports){

/**
 * This is the web browser implementation of `debug()`.
 *
 * Expose `debug()` as the module.
 */

exports = module.exports = require('./debug');
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;
exports.storage = 'undefined' != typeof chrome
               && 'undefined' != typeof chrome.storage
                  ? chrome.storage.local
                  : localstorage();

/**
 * Colors.
 */

exports.colors = [
  'lightseagreen',
  'forestgreen',
  'goldenrod',
  'dodgerblue',
  'darkorchid',
  'crimson'
];

/**
 * Currently only WebKit-based Web Inspectors, Firefox >= v31,
 * and the Firebug extension (any Firefox version) are known
 * to support "%c" CSS customizations.
 *
 * TODO: add a `localStorage` variable to explicitly enable/disable colors
 */

function useColors() {
  // is webkit? http://stackoverflow.com/a/16459606/376773
  return ('WebkitAppearance' in document.documentElement.style) ||
    // is firebug? http://stackoverflow.com/a/398120/376773
    (window.console && (console.firebug || (console.exception && console.table))) ||
    // is firefox >= v31?
    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
    (navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31);
}

/**
 * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
 */

exports.formatters.j = function(v) {
  return JSON.stringify(v);
};


/**
 * Colorize log arguments if enabled.
 *
 * @api public
 */

function formatArgs() {
  var args = arguments;
  var useColors = this.useColors;

  args[0] = (useColors ? '%c' : '')
    + this.namespace
    + (useColors ? ' %c' : ' ')
    + args[0]
    + (useColors ? '%c ' : ' ')
    + '+' + exports.humanize(this.diff);

  if (!useColors) return args;

  var c = 'color: ' + this.color;
  args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1));

  // the final "%c" is somewhat tricky, because there could be other
  // arguments passed either before or after the %c, so we need to
  // figure out the correct index to insert the CSS into
  var index = 0;
  var lastC = 0;
  args[0].replace(/%[a-z%]/g, function(match) {
    if ('%%' === match) return;
    index++;
    if ('%c' === match) {
      // we only are interested in the *last* %c
      // (the user may have provided their own)
      lastC = index;
    }
  });

  args.splice(lastC, 0, c);
  return args;
}

/**
 * Invokes `console.log()` when available.
 * No-op when `console.log` is not a "function".
 *
 * @api public
 */

function log() {
  // this hackery is required for IE8/9, where
  // the `console.log` function doesn't have 'apply'
  return 'object' === typeof console
    && console.log
    && Function.prototype.apply.call(console.log, console, arguments);
}

/**
 * Save `namespaces`.
 *
 * @param {String} namespaces
 * @api private
 */

function save(namespaces) {
  try {
    if (null == namespaces) {
      exports.storage.removeItem('debug');
    } else {
      exports.storage.debug = namespaces;
    }
  } catch(e) {}
}

/**
 * Load `namespaces`.
 *
 * @return {String} returns the previously persisted debug modes
 * @api private
 */

function load() {
  var r;
  try {
    r = exports.storage.debug;
  } catch(e) {}
  return r;
}

/**
 * Enable namespaces listed in `localStorage.debug` initially.
 */

exports.enable(load());

/**
 * Localstorage attempts to return the localstorage.
 *
 * This is necessary because safari throws
 * when a user disables cookies/localstorage
 * and you attempt to access it.
 *
 * @return {LocalStorage}
 * @api private
 */

function localstorage(){
  try {
    return window.localStorage;
  } catch (e) {}
}

},{"./debug":80}],80:[function(require,module,exports){

/**
 * This is the common logic for both the Node.js and web browser
 * implementations of `debug()`.
 *
 * Expose `debug()` as the module.
 */

exports = module.exports = debug;
exports.coerce = coerce;
exports.disable = disable;
exports.enable = enable;
exports.enabled = enabled;
exports.humanize = require('ms');

/**
 * The currently active debug mode names, and names to skip.
 */

exports.names = [];
exports.skips = [];

/**
 * Map of special "%n" handling functions, for the debug "format" argument.
 *
 * Valid key names are a single, lowercased letter, i.e. "n".
 */

exports.formatters = {};

/**
 * Previously assigned color.
 */

var prevColor = 0;

/**
 * Previous log timestamp.
 */

var prevTime;

/**
 * Select a color.
 *
 * @return {Number}
 * @api private
 */

function selectColor() {
  return exports.colors[prevColor++ % exports.colors.length];
}

/**
 * Create a debugger with the given `namespace`.
 *
 * @param {String} namespace
 * @return {Function}
 * @api public
 */

function debug(namespace) {

  // define the `disabled` version
  function disabled() {
  }
  disabled.enabled = false;

  // define the `enabled` version
  function enabled() {

    var self = enabled;

    // set `diff` timestamp
    var curr = +new Date();
    var ms = curr - (prevTime || curr);
    self.diff = ms;
    self.prev = prevTime;
    self.curr = curr;
    prevTime = curr;

    // add the `color` if not set
    if (null == self.useColors) self.useColors = exports.useColors();
    if (null == self.color && self.useColors) self.color = selectColor();

    var args = Array.prototype.slice.call(arguments);

    args[0] = exports.coerce(args[0]);

    if ('string' !== typeof args[0]) {
      // anything else let's inspect with %o
      args = ['%o'].concat(args);
    }

    // apply any `formatters` transformations
    var index = 0;
    args[0] = args[0].replace(/%([a-z%])/g, function(match, format) {
      // if we encounter an escaped % then don't increase the array index
      if (match === '%%') return match;
      index++;
      var formatter = exports.formatters[format];
      if ('function' === typeof formatter) {
        var val = args[index];
        match = formatter.call(self, val);

        // now we need to remove `args[index]` since it's inlined in the `format`
        args.splice(index, 1);
        index--;
      }
      return match;
    });

    if ('function' === typeof exports.formatArgs) {
      args = exports.formatArgs.apply(self, args);
    }
    var logFn = enabled.log || exports.log || console.log.bind(console);
    logFn.apply(self, args);
  }
  enabled.enabled = true;

  var fn = exports.enabled(namespace) ? enabled : disabled;

  fn.namespace = namespace;

  return fn;
}

/**
 * Enables a debug mode by namespaces. This can include modes
 * separated by a colon and wildcards.
 *
 * @param {String} namespaces
 * @api public
 */

function enable(namespaces) {
  exports.save(namespaces);

  var split = (namespaces || '').split(/[\s,]+/);
  var len = split.length;

  for (var i = 0; i < len; i++) {
    if (!split[i]) continue; // ignore empty strings
    namespaces = split[i].replace(/\*/g, '.*?');
    if (namespaces[0] === '-') {
      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
    } else {
      exports.names.push(new RegExp('^' + namespaces + '$'));
    }
  }
}

/**
 * Disable debug output.
 *
 * @api public
 */

function disable() {
  exports.enable('');
}

/**
 * Returns true if the given mode name is enabled, false otherwise.
 *
 * @param {String} name
 * @return {Boolean}
 * @api public
 */

function enabled(name) {
  var i, len;
  for (i = 0, len = exports.skips.length; i < len; i++) {
    if (exports.skips[i].test(name)) {
      return false;
    }
  }
  for (i = 0, len = exports.names.length; i < len; i++) {
    if (exports.names[i].test(name)) {
      return true;
    }
  }
  return false;
}

/**
 * Coerce `val`.
 *
 * @param {Mixed} val
 * @return {Mixed}
 * @api private
 */

function coerce(val) {
  if (val instanceof Error) return val.stack || val.message;
  return val;
}

},{"ms":81}],81:[function(require,module,exports){
/**
 * Helpers.
 */

var s = 1000;
var m = s * 60;
var h = m * 60;
var d = h * 24;
var y = d * 365.25;

/**
 * Parse or format the given `val`.
 *
 * Options:
 *
 *  - `long` verbose formatting [false]
 *
 * @param {String|Number} val
 * @param {Object} options
 * @return {String|Number}
 * @api public
 */

module.exports = function(val, options){
  options = options || {};
  if ('string' == typeof val) return parse(val);
  return options.long
    ? long(val)
    : short(val);
};

/**
 * Parse the given `str` and return milliseconds.
 *
 * @param {String} str
 * @return {Number}
 * @api private
 */

function parse(str) {
  str = '' + str;
  if (str.length > 10000) return;
  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(str);
  if (!match) return;
  var n = parseFloat(match[1]);
  var type = (match[2] || 'ms').toLowerCase();
  switch (type) {
    case 'years':
    case 'year':
    case 'yrs':
    case 'yr':
    case 'y':
      return n * y;
    case 'days':
    case 'day':
    case 'd':
      return n * d;
    case 'hours':
    case 'hour':
    case 'hrs':
    case 'hr':
    case 'h':
      return n * h;
    case 'minutes':
    case 'minute':
    case 'mins':
    case 'min':
    case 'm':
      return n * m;
    case 'seconds':
    case 'second':
    case 'secs':
    case 'sec':
    case 's':
      return n * s;
    case 'milliseconds':
    case 'millisecond':
    case 'msecs':
    case 'msec':
    case 'ms':
      return n;
  }
}

/**
 * Short format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function short(ms) {
  if (ms >= d) return Math.round(ms / d) + 'd';
  if (ms >= h) return Math.round(ms / h) + 'h';
  if (ms >= m) return Math.round(ms / m) + 'm';
  if (ms >= s) return Math.round(ms / s) + 's';
  return ms + 'ms';
}

/**
 * Long format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function long(ms) {
  return plural(ms, d, 'day')
    || plural(ms, h, 'hour')
    || plural(ms, m, 'minute')
    || plural(ms, s, 'second')
    || ms + ' ms';
}

/**
 * Pluralization helper.
 */

function plural(ms, n, name) {
  if (ms < n) return;
  if (ms < n * 1.5) return Math.floor(ms / n) + ' ' + name;
  return Math.ceil(ms / n) + ' ' + name + 's';
}

},{}],82:[function(require,module,exports){
/*! (C) WebReflection Mit Style License */
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(function (process,global){
/*!
 * @overview es6-promise - a tiny implementation of Promises/A+.
 * @copyright Copyright (c) 2014 Yehuda Katz, Tom Dale, Stefan Penner and contributors (Conversion to ES6 API by Jake Archibald)
 * @license   Licensed under MIT license
 *            See https://raw.githubusercontent.com/jakearchibald/es6-promise/master/LICENSE
 * @version   3.1.2
 */

(function() {
    "use strict";
    function lib$es6$promise$utils$$objectOrFunction(x) {
      return typeof x === 'function' || (typeof x === 'object' && x !== null);
    }

    function lib$es6$promise$utils$$isFunction(x) {
      return typeof x === 'function';
    }

    function lib$es6$promise$utils$$isMaybeThenable(x) {
      return typeof x === 'object' && x !== null;
    }

    var lib$es6$promise$utils$$_isArray;
    if (!Array.isArray) {
      lib$es6$promise$utils$$_isArray = function (x) {
        return Object.prototype.toString.call(x) === '[object Array]';
      };
    } else {
      lib$es6$promise$utils$$_isArray = Array.isArray;
    }

    var lib$es6$promise$utils$$isArray = lib$es6$promise$utils$$_isArray;
    var lib$es6$promise$asap$$len = 0;
    var lib$es6$promise$asap$$vertxNext;
    var lib$es6$promise$asap$$customSchedulerFn;

    var lib$es6$promise$asap$$asap = function asap(callback, arg) {
      lib$es6$promise$asap$$queue[lib$es6$promise$asap$$len] = callback;
      lib$es6$promise$asap$$queue[lib$es6$promise$asap$$len + 1] = arg;
      lib$es6$promise$asap$$len += 2;
      if (lib$es6$promise$asap$$len === 2) {
        // If len is 2, that means that we need to schedule an async flush.
        // If additional callbacks are queued before the queue is flushed, they
        // will be processed by this flush that we are scheduling.
        if (lib$es6$promise$asap$$customSchedulerFn) {
          lib$es6$promise$asap$$customSchedulerFn(lib$es6$promise$asap$$flush);
        } else {
          lib$es6$promise$asap$$scheduleFlush();
        }
      }
    }

    function lib$es6$promise$asap$$setScheduler(scheduleFn) {
      lib$es6$promise$asap$$customSchedulerFn = scheduleFn;
    }

    function lib$es6$promise$asap$$setAsap(asapFn) {
      lib$es6$promise$asap$$asap = asapFn;
    }

    var lib$es6$promise$asap$$browserWindow = (typeof window !== 'undefined') ? window : undefined;
    var lib$es6$promise$asap$$browserGlobal = lib$es6$promise$asap$$browserWindow || {};
    var lib$es6$promise$asap$$BrowserMutationObserver = lib$es6$promise$asap$$browserGlobal.MutationObserver || lib$es6$promise$asap$$browserGlobal.WebKitMutationObserver;
    var lib$es6$promise$asap$$isNode = typeof process !== 'undefined' && {}.toString.call(process) === '[object process]';

    // test for web worker but not in IE10
    var lib$es6$promise$asap$$isWorker = typeof Uint8ClampedArray !== 'undefined' &&
      typeof importScripts !== 'undefined' &&
      typeof MessageChannel !== 'undefined';

    // node
    function lib$es6$promise$asap$$useNextTick() {
      // node version 0.10.x displays a deprecation warning when nextTick is used recursively
      // see https://github.com/cujojs/when/issues/410 for details
      return function() {
        process.nextTick(lib$es6$promise$asap$$flush);
      };
    }

    // vertx
    function lib$es6$promise$asap$$useVertxTimer() {
      return function() {
        lib$es6$promise$asap$$vertxNext(lib$es6$promise$asap$$flush);
      };
    }

    function lib$es6$promise$asap$$useMutationObserver() {
      var iterations = 0;
      var observer = new lib$es6$promise$asap$$BrowserMutationObserver(lib$es6$promise$asap$$flush);
      var node = document.createTextNode('');
      observer.observe(node, { characterData: true });

      return function() {
        node.data = (iterations = ++iterations % 2);
      };
    }

    // web worker
    function lib$es6$promise$asap$$useMessageChannel() {
      var channel = new MessageChannel();
      channel.port1.onmessage = lib$es6$promise$asap$$flush;
      return function () {
        channel.port2.postMessage(0);
      };
    }

    function lib$es6$promise$asap$$useSetTimeout() {
      return function() {
        setTimeout(lib$es6$promise$asap$$flush, 1);
      };
    }

    var lib$es6$promise$asap$$queue = new Array(1000);
    function lib$es6$promise$asap$$flush() {
      for (var i = 0; i < lib$es6$promise$asap$$len; i+=2) {
        var callback = lib$es6$promise$asap$$queue[i];
        var arg = lib$es6$promise$asap$$queue[i+1];

        callback(arg);

        lib$es6$promise$asap$$queue[i] = undefined;
        lib$es6$promise$asap$$queue[i+1] = undefined;
      }

      lib$es6$promise$asap$$len = 0;
    }

    function lib$es6$promise$asap$$attemptVertx() {
      try {
        var r = require;
        var vertx = r('vertx');
        lib$es6$promise$asap$$vertxNext = vertx.runOnLoop || vertx.runOnContext;
        return lib$es6$promise$asap$$useVertxTimer();
      } catch(e) {
        return lib$es6$promise$asap$$useSetTimeout();
      }
    }

    var lib$es6$promise$asap$$scheduleFlush;
    // Decide what async method to use to triggering processing of queued callbacks:
    if (lib$es6$promise$asap$$isNode) {
      lib$es6$promise$asap$$scheduleFlush = lib$es6$promise$asap$$useNextTick();
    } else if (lib$es6$promise$asap$$BrowserMutationObserver) {
      lib$es6$promise$asap$$scheduleFlush = lib$es6$promise$asap$$useMutationObserver();
    } else if (lib$es6$promise$asap$$isWorker) {
      lib$es6$promise$asap$$scheduleFlush = lib$es6$promise$asap$$useMessageChannel();
    } else if (lib$es6$promise$asap$$browserWindow === undefined && typeof require === 'function') {
      lib$es6$promise$asap$$scheduleFlush = lib$es6$promise$asap$$attemptVertx();
    } else {
      lib$es6$promise$asap$$scheduleFlush = lib$es6$promise$asap$$useSetTimeout();
    }
    function lib$es6$promise$then$$then(onFulfillment, onRejection) {
      var parent = this;
      var state = parent._state;

      if (state === lib$es6$promise$$internal$$FULFILLED && !onFulfillment || state === lib$es6$promise$$internal$$REJECTED && !onRejection) {
        return this;
      }

      var child = new this.constructor(lib$es6$promise$$internal$$noop);
      var result = parent._result;

      if (state) {
        var callback = arguments[state - 1];
        lib$es6$promise$asap$$asap(function(){
          lib$es6$promise$$internal$$invokeCallback(state, child, callback, result);
        });
      } else {
        lib$es6$promise$$internal$$subscribe(parent, child, onFulfillment, onRejection);
      }

      return child;
    }
    var lib$es6$promise$then$$default = lib$es6$promise$then$$then;
    function lib$es6$promise$promise$resolve$$resolve(object) {
      /*jshint validthis:true */
      var Constructor = this;

      if (object && typeof object === 'object' && object.constructor === Constructor) {
        return object;
      }

      var promise = new Constructor(lib$es6$promise$$internal$$noop);
      lib$es6$promise$$internal$$resolve(promise, object);
      return promise;
    }
    var lib$es6$promise$promise$resolve$$default = lib$es6$promise$promise$resolve$$resolve;

    function lib$es6$promise$$internal$$noop() {}

    var lib$es6$promise$$internal$$PENDING   = void 0;
    var lib$es6$promise$$internal$$FULFILLED = 1;
    var lib$es6$promise$$internal$$REJECTED  = 2;

    var lib$es6$promise$$internal$$GET_THEN_ERROR = new lib$es6$promise$$internal$$ErrorObject();

    function lib$es6$promise$$internal$$selfFulfillment() {
      return new TypeError("You cannot resolve a promise with itself");
    }

    function lib$es6$promise$$internal$$cannotReturnOwn() {
      return new TypeError('A promises callback cannot return that same promise.');
    }

    function lib$es6$promise$$internal$$getThen(promise) {
      try {
        return promise.then;
      } catch(error) {
        lib$es6$promise$$internal$$GET_THEN_ERROR.error = error;
        return lib$es6$promise$$internal$$GET_THEN_ERROR;
      }
    }

    function lib$es6$promise$$internal$$tryThen(then, value, fulfillmentHandler, rejectionHandler) {
      try {
        then.call(value, fulfillmentHandler, rejectionHandler);
      } catch(e) {
        return e;
      }
    }

    function lib$es6$promise$$internal$$handleForeignThenable(promise, thenable, then) {
       lib$es6$promise$asap$$asap(function(promise) {
        var sealed = false;
        var error = lib$es6$promise$$internal$$tryThen(then, thenable, function(value) {
          if (sealed) { return; }
          sealed = true;
          if (thenable !== value) {
            lib$es6$promise$$internal$$resolve(promise, value);
          } else {
            lib$es6$promise$$internal$$fulfill(promise, value);
          }
        }, function(reason) {
          if (sealed) { return; }
          sealed = true;

          lib$es6$promise$$internal$$reject(promise, reason);
        }, 'Settle: ' + (promise._label || ' unknown promise'));

        if (!sealed && error) {
          sealed = true;
          lib$es6$promise$$internal$$reject(promise, error);
        }
      }, promise);
    }

    function lib$es6$promise$$internal$$handleOwnThenable(promise, thenable) {
      if (thenable._state === lib$es6$promise$$internal$$FULFILLED) {
        lib$es6$promise$$internal$$fulfill(promise, thenable._result);
      } else if (thenable._state === lib$es6$promise$$internal$$REJECTED) {
        lib$es6$promise$$internal$$reject(promise, thenable._result);
      } else {
        lib$es6$promise$$internal$$subscribe(thenable, undefined, function(value) {
          lib$es6$promise$$internal$$resolve(promise, value);
        }, function(reason) {
          lib$es6$promise$$internal$$reject(promise, reason);
        });
      }
    }

    function lib$es6$promise$$internal$$handleMaybeThenable(promise, maybeThenable, then) {
      if (maybeThenable.constructor === promise.constructor &&
          then === lib$es6$promise$then$$default &&
          constructor.resolve === lib$es6$promise$promise$resolve$$default) {
        lib$es6$promise$$internal$$handleOwnThenable(promise, maybeThenable);
      } else {
        if (then === lib$es6$promise$$internal$$GET_THEN_ERROR) {
          lib$es6$promise$$internal$$reject(promise, lib$es6$promise$$internal$$GET_THEN_ERROR.error);
        } else if (then === undefined) {
          lib$es6$promise$$internal$$fulfill(promise, maybeThenable);
        } else if (lib$es6$promise$utils$$isFunction(then)) {
          lib$es6$promise$$internal$$handleForeignThenable(promise, maybeThenable, then);
        } else {
          lib$es6$promise$$internal$$fulfill(promise, maybeThenable);
        }
      }
    }

    function lib$es6$promise$$internal$$resolve(promise, value) {
      if (promise === value) {
        lib$es6$promise$$internal$$reject(promise, lib$es6$promise$$internal$$selfFulfillment());
      } else if (lib$es6$promise$utils$$objectOrFunction(value)) {
        lib$es6$promise$$internal$$handleMaybeThenable(promise, value, lib$es6$promise$$internal$$getThen(value));
      } else {
        lib$es6$promise$$internal$$fulfill(promise, value);
      }
    }

    function lib$es6$promise$$internal$$publishRejection(promise) {
      if (promise._onerror) {
        promise._onerror(promise._result);
      }

      lib$es6$promise$$internal$$publish(promise);
    }

    function lib$es6$promise$$internal$$fulfill(promise, value) {
      if (promise._state !== lib$es6$promise$$internal$$PENDING) { return; }

      promise._result = value;
      promise._state = lib$es6$promise$$internal$$FULFILLED;

      if (promise._subscribers.length !== 0) {
        lib$es6$promise$asap$$asap(lib$es6$promise$$internal$$publish, promise);
      }
    }

    function lib$es6$promise$$internal$$reject(promise, reason) {
      if (promise._state !== lib$es6$promise$$internal$$PENDING) { return; }
      promise._state = lib$es6$promise$$internal$$REJECTED;
      promise._result = reason;

      lib$es6$promise$asap$$asap(lib$es6$promise$$internal$$publishRejection, promise);
    }

    function lib$es6$promise$$internal$$subscribe(parent, child, onFulfillment, onRejection) {
      var subscribers = parent._subscribers;
      var length = subscribers.length;

      parent._onerror = null;

      subscribers[length] = child;
      subscribers[length + lib$es6$promise$$internal$$FULFILLED] = onFulfillment;
      subscribers[length + lib$es6$promise$$internal$$REJECTED]  = onRejection;

      if (length === 0 && parent._state) {
        lib$es6$promise$asap$$asap(lib$es6$promise$$internal$$publish, parent);
      }
    }

    function lib$es6$promise$$internal$$publish(promise) {
      var subscribers = promise._subscribers;
      var settled = promise._state;

      if (subscribers.length === 0) { return; }

      var child, callback, detail = promise._result;

      for (var i = 0; i < subscribers.length; i += 3) {
        child = subscribers[i];
        callback = subscribers[i + settled];

        if (child) {
          lib$es6$promise$$internal$$invokeCallback(settled, child, callback, detail);
        } else {
          callback(detail);
        }
      }

      promise._subscribers.length = 0;
    }

    function lib$es6$promise$$internal$$ErrorObject() {
      this.error = null;
    }

    var lib$es6$promise$$internal$$TRY_CATCH_ERROR = new lib$es6$promise$$internal$$ErrorObject();

    function lib$es6$promise$$internal$$tryCatch(callback, detail) {
      try {
        return callback(detail);
      } catch(e) {
        lib$es6$promise$$internal$$TRY_CATCH_ERROR.error = e;
        return lib$es6$promise$$internal$$TRY_CATCH_ERROR;
      }
    }

    function lib$es6$promise$$internal$$invokeCallback(settled, promise, callback, detail) {
      var hasCallback = lib$es6$promise$utils$$isFunction(callback),
          value, error, succeeded, failed;

      if (hasCallback) {
        value = lib$es6$promise$$internal$$tryCatch(callback, detail);

        if (value === lib$es6$promise$$internal$$TRY_CATCH_ERROR) {
          failed = true;
          error = value.error;
          value = null;
        } else {
          succeeded = true;
        }

        if (promise === value) {
          lib$es6$promise$$internal$$reject(promise, lib$es6$promise$$internal$$cannotReturnOwn());
          return;
        }

      } else {
        value = detail;
        succeeded = true;
      }

      if (promise._state !== lib$es6$promise$$internal$$PENDING) {
        // noop
      } else if (hasCallback && succeeded) {
        lib$es6$promise$$internal$$resolve(promise, value);
      } else if (failed) {
        lib$es6$promise$$internal$$reject(promise, error);
      } else if (settled === lib$es6$promise$$internal$$FULFILLED) {
        lib$es6$promise$$internal$$fulfill(promise, value);
      } else if (settled === lib$es6$promise$$internal$$REJECTED) {
        lib$es6$promise$$internal$$reject(promise, value);
      }
    }

    function lib$es6$promise$$internal$$initializePromise(promise, resolver) {
      try {
        resolver(function resolvePromise(value){
          lib$es6$promise$$internal$$resolve(promise, value);
        }, function rejectPromise(reason) {
          lib$es6$promise$$internal$$reject(promise, reason);
        });
      } catch(e) {
        lib$es6$promise$$internal$$reject(promise, e);
      }
    }

    function lib$es6$promise$promise$all$$all(entries) {
      return new lib$es6$promise$enumerator$$default(this, entries).promise;
    }
    var lib$es6$promise$promise$all$$default = lib$es6$promise$promise$all$$all;
    function lib$es6$promise$promise$race$$race(entries) {
      /*jshint validthis:true */
      var Constructor = this;

      var promise = new Constructor(lib$es6$promise$$internal$$noop);

      if (!lib$es6$promise$utils$$isArray(entries)) {
        lib$es6$promise$$internal$$reject(promise, new TypeError('You must pass an array to race.'));
        return promise;
      }

      var length = entries.length;

      function onFulfillment(value) {
        lib$es6$promise$$internal$$resolve(promise, value);
      }

      function onRejection(reason) {
        lib$es6$promise$$internal$$reject(promise, reason);
      }

      for (var i = 0; promise._state === lib$es6$promise$$internal$$PENDING && i < length; i++) {
        lib$es6$promise$$internal$$subscribe(Constructor.resolve(entries[i]), undefined, onFulfillment, onRejection);
      }

      return promise;
    }
    var lib$es6$promise$promise$race$$default = lib$es6$promise$promise$race$$race;
    function lib$es6$promise$promise$reject$$reject(reason) {
      /*jshint validthis:true */
      var Constructor = this;
      var promise = new Constructor(lib$es6$promise$$internal$$noop);
      lib$es6$promise$$internal$$reject(promise, reason);
      return promise;
    }
    var lib$es6$promise$promise$reject$$default = lib$es6$promise$promise$reject$$reject;

    var lib$es6$promise$promise$$counter = 0;

    function lib$es6$promise$promise$$needsResolver() {
      throw new TypeError('You must pass a resolver function as the first argument to the promise constructor');
    }

    function lib$es6$promise$promise$$needsNew() {
      throw new TypeError("Failed to construct 'Promise': Please use the 'new' operator, this object constructor cannot be called as a function.");
    }

    var lib$es6$promise$promise$$default = lib$es6$promise$promise$$Promise;
    /**
      Promise objects represent the eventual result of an asynchronous operation. The
      primary way of interacting with a promise is through its `then` method, which
      registers callbacks to receive either a promise's eventual value or the reason
      why the promise cannot be fulfilled.

      Terminology
      -----------

      - `promise` is an object or function with a `then` method whose behavior conforms to this specification.
      - `thenable` is an object or function that defines a `then` method.
      - `value` is any legal JavaScript value (including undefined, a thenable, or a promise).
      - `exception` is a value that is thrown using the throw statement.
      - `reason` is a value that indicates why a promise was rejected.
      - `settled` the final resting state of a promise, fulfilled or rejected.

      A promise can be in one of three states: pending, fulfilled, or rejected.

      Promises that are fulfilled have a fulfillment value and are in the fulfilled
      state.  Promises that are rejected have a rejection reason and are in the
      rejected state.  A fulfillment value is never a thenable.

      Promises can also be said to *resolve* a value.  If this value is also a
      promise, then the original promise's settled state will match the value's
      settled state.  So a promise that *resolves* a promise that rejects will
      itself reject, and a promise that *resolves* a promise that fulfills will
      itself fulfill.


      Basic Usage:
      ------------

      ```js
      var promise = new Promise(function(resolve, reject) {
        // on success
        resolve(value);

        // on failure
        reject(reason);
      });

      promise.then(function(value) {
        // on fulfillment
      }, function(reason) {
        // on rejection
      });
      ```

      Advanced Usage:
      ---------------

      Promises shine when abstracting away asynchronous interactions such as
      `XMLHttpRequest`s.

      ```js
      function getJSON(url) {
        return new Promise(function(resolve, reject){
          var xhr = new XMLHttpRequest();

          xhr.open('GET', url);
          xhr.onreadystatechange = handler;
          xhr.responseType = 'json';
          xhr.setRequestHeader('Accept', 'application/json');
          xhr.send();

          function handler() {
            if (this.readyState === this.DONE) {
              if (this.status === 200) {
                resolve(this.response);
              } else {
                reject(new Error('getJSON: `' + url + '` failed with status: [' + this.status + ']'));
              }
            }
          };
        });
      }

      getJSON('/posts.json').then(function(json) {
        // on fulfillment
      }, function(reason) {
        // on rejection
      });
      ```

      Unlike callbacks, promises are great composable primitives.

      ```js
      Promise.all([
        getJSON('/posts'),
        getJSON('/comments')
      ]).then(function(values){
        values[0] // => postsJSON
        values[1] // => commentsJSON

        return values;
      });
      ```

      @class Promise
      @param {function} resolver
      Useful for tooling.
      @constructor
    */
    function lib$es6$promise$promise$$Promise(resolver) {
      this._id = lib$es6$promise$promise$$counter++;
      this._state = undefined;
      this._result = undefined;
      this._subscribers = [];

      if (lib$es6$promise$$internal$$noop !== resolver) {
        typeof resolver !== 'function' && lib$es6$promise$promise$$needsResolver();
        this instanceof lib$es6$promise$promise$$Promise ? lib$es6$promise$$internal$$initializePromise(this, resolver) : lib$es6$promise$promise$$needsNew();
      }
    }

    lib$es6$promise$promise$$Promise.all = lib$es6$promise$promise$all$$default;
    lib$es6$promise$promise$$Promise.race = lib$es6$promise$promise$race$$default;
    lib$es6$promise$promise$$Promise.resolve = lib$es6$promise$promise$resolve$$default;
    lib$es6$promise$promise$$Promise.reject = lib$es6$promise$promise$reject$$default;
    lib$es6$promise$promise$$Promise._setScheduler = lib$es6$promise$asap$$setScheduler;
    lib$es6$promise$promise$$Promise._setAsap = lib$es6$promise$asap$$setAsap;
    lib$es6$promise$promise$$Promise._asap = lib$es6$promise$asap$$asap;

    lib$es6$promise$promise$$Promise.prototype = {
      constructor: lib$es6$promise$promise$$Promise,

    /**
      The primary way of interacting with a promise is through its `then` method,
      which registers callbacks to receive either a promise's eventual value or the
      reason why the promise cannot be fulfilled.

      ```js
      findUser().then(function(user){
        // user is available
      }, function(reason){
        // user is unavailable, and you are given the reason why
      });
      ```

      Chaining
      --------

      The return value of `then` is itself a promise.  This second, 'downstream'
      promise is resolved with the return value of the first promise's fulfillment
      or rejection handler, or rejected if the handler throws an exception.

      ```js
      findUser().then(function (user) {
        return user.name;
      }, function (reason) {
        return 'default name';
      }).then(function (userName) {
        // If `findUser` fulfilled, `userName` will be the user's name, otherwise it
        // will be `'default name'`
      });

      findUser().then(function (user) {
        throw new Error('Found user, but still unhappy');
      }, function (reason) {
        throw new Error('`findUser` rejected and we're unhappy');
      }).then(function (value) {
        // never reached
      }, function (reason) {
        // if `findUser` fulfilled, `reason` will be 'Found user, but still unhappy'.
        // If `findUser` rejected, `reason` will be '`findUser` rejected and we're unhappy'.
      });
      ```
      If the downstream promise does not specify a rejection handler, rejection reasons will be propagated further downstream.

      ```js
      findUser().then(function (user) {
        throw new PedagogicalException('Upstream error');
      }).then(function (value) {
        // never reached
      }).then(function (value) {
        // never reached
      }, function (reason) {
        // The `PedgagocialException` is propagated all the way down to here
      });
      ```

      Assimilation
      ------------

      Sometimes the value you want to propagate to a downstream promise can only be
      retrieved asynchronously. This can be achieved by returning a promise in the
      fulfillment or rejection handler. The downstream promise will then be pending
      until the returned promise is settled. This is called *assimilation*.

      ```js
      findUser().then(function (user) {
        return findCommentsByAuthor(user);
      }).then(function (comments) {
        // The user's comments are now available
      });
      ```

      If the assimliated promise rejects, then the downstream promise will also reject.

      ```js
      findUser().then(function (user) {
        return findCommentsByAuthor(user);
      }).then(function (comments) {
        // If `findCommentsByAuthor` fulfills, we'll have the value here
      }, function (reason) {
        // If `findCommentsByAuthor` rejects, we'll have the reason here
      });
      ```

      Simple Example
      --------------

      Synchronous Example

      ```javascript
      var result;

      try {
        result = findResult();
        // success
      } catch(reason) {
        // failure
      }
      ```

      Errback Example

      ```js
      findResult(function(result, err){
        if (err) {
          // failure
        } else {
          // success
        }
      });
      ```

      Promise Example;

      ```javascript
      findResult().then(function(result){
        // success
      }, function(reason){
        // failure
      });
      ```

      Advanced Example
      --------------

      Synchronous Example

      ```javascript
      var author, books;

      try {
        author = findAuthor();
        books  = findBooksByAuthor(author);
        // success
      } catch(reason) {
        // failure
      }
      ```

      Errback Example

      ```js

      function foundBooks(books) {

      }

      function failure(reason) {

      }

      findAuthor(function(author, err){
        if (err) {
          failure(err);
          // failure
        } else {
          try {
            findBoooksByAuthor(author, function(books, err) {
              if (err) {
                failure(err);
              } else {
                try {
                  foundBooks(books);
                } catch(reason) {
                  failure(reason);
                }
              }
            });
          } catch(error) {
            failure(err);
          }
          // success
        }
      });
      ```

      Promise Example;

      ```javascript
      findAuthor().
        then(findBooksByAuthor).
        then(function(books){
          // found books
      }).catch(function(reason){
        // something went wrong
      });
      ```

      @method then
      @param {Function} onFulfilled
      @param {Function} onRejected
      Useful for tooling.
      @return {Promise}
    */
      then: lib$es6$promise$then$$default,

    /**
      `catch` is simply sugar for `then(undefined, onRejection)` which makes it the same
      as the catch block of a try/catch statement.

      ```js
      function findAuthor(){
        throw new Error('couldn't find that author');
      }

      // synchronous
      try {
        findAuthor();
      } catch(reason) {
        // something went wrong
      }

      // async with promises
      findAuthor().catch(function(reason){
        // something went wrong
      });
      ```

      @method catch
      @param {Function} onRejection
      Useful for tooling.
      @return {Promise}
    */
      'catch': function(onRejection) {
        return this.then(null, onRejection);
      }
    };
    var lib$es6$promise$enumerator$$default = lib$es6$promise$enumerator$$Enumerator;
    function lib$es6$promise$enumerator$$Enumerator(Constructor, input) {
      this._instanceConstructor = Constructor;
      this.promise = new Constructor(lib$es6$promise$$internal$$noop);

      if (Array.isArray(input)) {
        this._input     = input;
        this.length     = input.length;
        this._remaining = input.length;

        this._result = new Array(this.length);

        if (this.length === 0) {
          lib$es6$promise$$internal$$fulfill(this.promise, this._result);
        } else {
          this.length = this.length || 0;
          this._enumerate();
          if (this._remaining === 0) {
            lib$es6$promise$$internal$$fulfill(this.promise, this._result);
          }
        }
      } else {
        lib$es6$promise$$internal$$reject(this.promise, this._validationError());
      }
    }

    lib$es6$promise$enumerator$$Enumerator.prototype._validationError = function() {
      return new Error('Array Methods must be provided an Array');
    };

    lib$es6$promise$enumerator$$Enumerator.prototype._enumerate = function() {
      var length  = this.length;
      var input   = this._input;

      for (var i = 0; this._state === lib$es6$promise$$internal$$PENDING && i < length; i++) {
        this._eachEntry(input[i], i);
      }
    };

    lib$es6$promise$enumerator$$Enumerator.prototype._eachEntry = function(entry, i) {
      var c = this._instanceConstructor;
      var resolve = c.resolve;

      if (resolve === lib$es6$promise$promise$resolve$$default) {
        var then = lib$es6$promise$$internal$$getThen(entry);

        if (then === lib$es6$promise$then$$default &&
            entry._state !== lib$es6$promise$$internal$$PENDING) {
          this._settledAt(entry._state, i, entry._result);
        } else if (typeof then !== 'function') {
          this._remaining--;
          this._result[i] = entry;
        } else if (c === lib$es6$promise$promise$$default) {
          var promise = new c(lib$es6$promise$$internal$$noop);
          lib$es6$promise$$internal$$handleMaybeThenable(promise, entry, then);
          this._willSettleAt(promise, i);
        } else {
          this._willSettleAt(new c(function(resolve) { resolve(entry); }), i);
        }
      } else {
        this._willSettleAt(resolve(entry), i);
      }
    };

    lib$es6$promise$enumerator$$Enumerator.prototype._settledAt = function(state, i, value) {
      var promise = this.promise;

      if (promise._state === lib$es6$promise$$internal$$PENDING) {
        this._remaining--;

        if (state === lib$es6$promise$$internal$$REJECTED) {
          lib$es6$promise$$internal$$reject(promise, value);
        } else {
          this._result[i] = value;
        }
      }

      if (this._remaining === 0) {
        lib$es6$promise$$internal$$fulfill(promise, this._result);
      }
    };

    lib$es6$promise$enumerator$$Enumerator.prototype._willSettleAt = function(promise, i) {
      var enumerator = this;

      lib$es6$promise$$internal$$subscribe(promise, undefined, function(value) {
        enumerator._settledAt(lib$es6$promise$$internal$$FULFILLED, i, value);
      }, function(reason) {
        enumerator._settledAt(lib$es6$promise$$internal$$REJECTED, i, reason);
      });
    };
    function lib$es6$promise$polyfill$$polyfill() {
      var local;

      if (typeof global !== 'undefined') {
          local = global;
      } else if (typeof self !== 'undefined') {
          local = self;
      } else {
          try {
              local = Function('return this')();
          } catch (e) {
              throw new Error('polyfill failed because global object is unavailable in this environment');
          }
      }

      var P = local.Promise;

      if (P && Object.prototype.toString.call(P.resolve()) === '[object Promise]' && !P.cast) {
        return;
      }

      local.Promise = lib$es6$promise$promise$$default;
    }
    var lib$es6$promise$polyfill$$default = lib$es6$promise$polyfill$$polyfill;

    var lib$es6$promise$umd$$ES6Promise = {
      'Promise': lib$es6$promise$promise$$default,
      'polyfill': lib$es6$promise$polyfill$$default
    };

    /* global define:true module:true window: true */
    if (typeof define === 'function' && define['amd']) {
      define(function() { return lib$es6$promise$umd$$ES6Promise; });
    } else if (typeof module !== 'undefined' && module['exports']) {
      module['exports'] = lib$es6$promise$umd$$ES6Promise;
    } else if (typeof this !== 'undefined') {
      this['ES6Promise'] = lib$es6$promise$umd$$ES6Promise;
    }

    lib$es6$promise$polyfill$$default();
}).call(this);


}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{"_process":78}],84:[function(require,module,exports){
/* eslint-disable no-unused-vars */
'use strict';
var hasOwnProperty = Object.prototype.hasOwnProperty;
var propIsEnumerable = Object.prototype.propertyIsEnumerable;

function toObject(val) {
	if (val === null || val === undefined) {
		throw new TypeError('Object.assign cannot be called with null or undefined');
	}

	return Object(val);
}

module.exports = Object.assign || function (target, source) {
	var from;
	var to = toObject(target);
	var symbols;

	for (var s = 1; s < arguments.length; s++) {
		from = Object(arguments[s]);

		for (var key in from) {
			if (hasOwnProperty.call(from, key)) {
				to[key] = from[key];
			}
		}

		if (Object.getOwnPropertySymbols) {
			symbols = Object.getOwnPropertySymbols(from);
			for (var i = 0; i < symbols.length; i++) {
				if (propIsEnumerable.call(from, symbols[i])) {
					to[symbols[i]] = from[symbols[i]];
				}
			}
		}
	}

	return to;
};

},{}],85:[function(require,module,exports){
(function (global){
var performance = global.performance || {};

var present = (function () {
  var names = ['now', 'webkitNow', 'msNow', 'mozNow', 'oNow'];
  while (names.length) {
    var name = names.shift();
    if (name in performance) {
      return performance[name].bind(performance);
    }
  }

  var dateNow = Date.now || function () { return new Date().getTime(); };
  var navigationStart = (performance.timing || {}).navigationStart || dateNow();
  return function () {
    return dateNow() - navigationStart;
  };
}());

present.performanceNow = performance.now;
present.noConflict = function () {
  performance.now = present.performanceNow;
};
present.conflict = function () {
  performance.now = present;
};
present.conflict();

module.exports = present;

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{}],86:[function(require,module,exports){
'use strict';

var raf = require('raf');
var now = require('time-now');

exports = module.exports = interval;
function interval(delay, fn, ctx) {
  var start = now();
  var data = Object.create(null);
  data.id = raf(loop);

  return data;

  function loop() {
    data.id = raf(loop);

    if ((now() - start) >= delay) {
      fn.call(ctx);
      start = now();
    }
  }
}


exports.clear = clearInterval;
function clearInterval(data) {
  raf.cancel(data.id);
}

},{"raf":87,"time-now":88}],87:[function(require,module,exports){
/**
 * Expose `requestAnimationFrame()`.
 */

exports = module.exports = window.requestAnimationFrame
  || window.webkitRequestAnimationFrame
  || window.mozRequestAnimationFrame
  || fallback;

/**
 * Fallback implementation.
 */

var prev = new Date().getTime();
function fallback(fn) {
  var curr = new Date().getTime();
  var ms = Math.max(0, 16 - (curr - prev));
  var req = setTimeout(fn, ms);
  prev = curr;
  return req;
}

/**
 * Cancel.
 */

var cancel = window.cancelAnimationFrame
  || window.webkitCancelAnimationFrame
  || window.mozCancelAnimationFrame
  || window.clearTimeout;

exports.cancel = function(id){
  cancel.call(window, id);
};

},{}],88:[function(require,module,exports){
'use strict';

module.exports = (function() {
  var perf = window && window.performance;
  if (perf && perf.now) {
    return perf.now.bind(perf);
  } else {
    return function() {
      return new Date().getTime();
    };
  }
}());

},{}],89:[function(require,module,exports){
/*

style-attr
====

Very simple parsing and stringifying of style attributes.

`parse`
----

Convert a style attribute string to an object.

- input: string (eg. anything you might see in a style attribute)
- return: object

*/
function parse (raw) {
  var trim = function (s) { return s.trim(); };
  var obj = {};

  getKeyValueChunks(raw)
    .map(trim)
    .filter(Boolean)
    .forEach(function (item) {
      // split with `.indexOf` rather than `.split` because the value may also contain colons.
      var pos = item.indexOf(':');
      var key = item.substr(0, pos).trim();
      var val = item.substr(pos + 1).trim();

      obj[key] = val;
    });

  return obj;
}

/*

`getKeyValueChunks`
----

Split a string into chunks matching `<key>: <value>`

- input: string
- return: Array<string>

*/
function getKeyValueChunks (raw) {
  var chunks = [];
  var offset = 0;
  var sep = ';';
  var hasUnclosedUrl = /url\([^\)]+$/;
  var chunk = '';
  var nextSplit;
  while (offset < raw.length) {
    nextSplit = raw.indexOf(sep, offset);
    if (nextSplit === -1) { nextSplit = raw.length; }

    chunk += raw.substring(offset, nextSplit);

    // data URIs can contain semicolons, so make sure we get the whole thing
    if (hasUnclosedUrl.test(chunk)) {
      chunk += ';';
      offset = nextSplit + 1;
      continue;
    }

    chunks.push(chunk);
    chunk = '';
    offset = nextSplit + 1;
  }

  return chunks;
}

/*

`stringify`
----

Convert an object into an attribute string

- input: object
- return: string

*/
function stringify (obj) {
  return Object.keys(obj)
    .map(function (key) {
      return key + ':' + obj[key];
    })
    .join(';');
}

/*

`normalize`
----

Normalize an attribute string (eg. collapse duplicates)

- input: string
- return: string

*/
function normalize (str) {
  return stringify(parse(str));
}

module.exports.parse = parse;
module.exports.stringify = stringify;
module.exports.normalize = normalize;

},{}],90:[function(require,module,exports){
/**
 * Tween.js - Licensed under the MIT license
 * https://github.com/sole/tween.js
 * ----------------------------------------------
 *
 * See https://github.com/sole/tween.js/graphs/contributors for the full list of contributors.
 * Thank you all, you're awesome!
 */

// performance.now polyfill
( function ( root ) {

	if ( 'performance' in root === false ) {
		root.performance = {};
	}

	// IE 8
	Date.now = ( Date.now || function () {
		return new Date().getTime();
	} );

	if ( 'now' in root.performance === false ) {
		var offset = root.performance.timing && root.performance.timing.navigationStart ? performance.timing.navigationStart
		                                                                                : Date.now();

		root.performance.now = function () {
			return Date.now() - offset;
		};
	}

} )( this );

var TWEEN = TWEEN || ( function () {

	var _tweens = [];

	return {

		REVISION: '14',

		getAll: function () {

			return _tweens;

		},

		removeAll: function () {

			_tweens = [];

		},

		add: function ( tween ) {

			_tweens.push( tween );

		},

		remove: function ( tween ) {

			var i = _tweens.indexOf( tween );

			if ( i !== -1 ) {

				_tweens.splice( i, 1 );

			}

		},

		update: function ( time ) {

			if ( _tweens.length === 0 ) return false;

			var i = 0;

			time = time !== undefined ? time : window.performance.now();

			while ( i < _tweens.length ) {

				if ( _tweens[ i ].update( time ) ) {

					i++;

				} else {

					_tweens.splice( i, 1 );

				}

			}

			return true;

		}
	};

} )();

TWEEN.Tween = function ( object ) {

	var _object = object;
	var _valuesStart = {};
	var _valuesEnd = {};
	var _valuesStartRepeat = {};
	var _duration = 1000;
	var _repeat = 0;
	var _yoyo = false;
	var _isPlaying = false;
	var _reversed = false;
	var _delayTime = 0;
	var _startTime = null;
	var _easingFunction = TWEEN.Easing.Linear.None;
	var _interpolationFunction = TWEEN.Interpolation.Linear;
	var _chainedTweens = [];
	var _onStartCallback = null;
	var _onStartCallbackFired = false;
	var _onUpdateCallback = null;
	var _onCompleteCallback = null;
	var _onStopCallback = null;

	// Set all starting values present on the target object
	for ( var field in object ) {

		_valuesStart[ field ] = parseFloat(object[field], 10);

	}

	this.to = function ( properties, duration ) {

		if ( duration !== undefined ) {

			_duration = duration;

		}

		_valuesEnd = properties;

		return this;

	};

	this.start = function ( time ) {

		TWEEN.add( this );

		_isPlaying = true;

		_onStartCallbackFired = false;

		_startTime = time !== undefined ? time : window.performance.now();
		_startTime += _delayTime;

		for ( var property in _valuesEnd ) {

			// check if an Array was provided as property value
			if ( _valuesEnd[ property ] instanceof Array ) {

				if ( _valuesEnd[ property ].length === 0 ) {

					continue;

				}

				// create a local copy of the Array with the start value at the front
				_valuesEnd[ property ] = [ _object[ property ] ].concat( _valuesEnd[ property ] );

			}

			_valuesStart[ property ] = _object[ property ];

			if( ( _valuesStart[ property ] instanceof Array ) === false ) {
				_valuesStart[ property ] *= 1.0; // Ensures we're using numbers, not strings
			}

			_valuesStartRepeat[ property ] = _valuesStart[ property ] || 0;

		}

		return this;

	};

	this.stop = function () {

		if ( !_isPlaying ) {
			return this;
		}

		TWEEN.remove( this );
		_isPlaying = false;

		if ( _onStopCallback !== null ) {

			_onStopCallback.call( _object );

		}

		this.stopChainedTweens();
		return this;

	};

	this.stopChainedTweens = function () {

		for ( var i = 0, numChainedTweens = _chainedTweens.length; i < numChainedTweens; i++ ) {

			_chainedTweens[ i ].stop();

		}

	};

	this.delay = function ( amount ) {

		_delayTime = amount;
		return this;

	};

	this.repeat = function ( times ) {

		_repeat = times;
		return this;

	};

	this.yoyo = function( yoyo ) {

		_yoyo = yoyo;
		return this;

	};


	this.easing = function ( easing ) {

		_easingFunction = easing;
		return this;

	};

	this.interpolation = function ( interpolation ) {

		_interpolationFunction = interpolation;
		return this;

	};

	this.chain = function () {

		_chainedTweens = arguments;
		return this;

	};

	this.onStart = function ( callback ) {

		_onStartCallback = callback;
		return this;

	};

	this.onUpdate = function ( callback ) {

		_onUpdateCallback = callback;
		return this;

	};

	this.onComplete = function ( callback ) {

		_onCompleteCallback = callback;
		return this;

	};

	this.onStop = function ( callback ) {

		_onStopCallback = callback;
		return this;

	};

	this.update = function ( time ) {

		var property;

		if ( time < _startTime ) {

			return true;

		}

		if ( _onStartCallbackFired === false ) {

			if ( _onStartCallback !== null ) {

				_onStartCallback.call( _object );

			}

			_onStartCallbackFired = true;

		}

		var elapsed = ( time - _startTime ) / _duration;
		elapsed = elapsed > 1 ? 1 : elapsed;

		var value = _easingFunction( elapsed );

		for ( property in _valuesEnd ) {

			var start = _valuesStart[ property ] || 0;
			var end = _valuesEnd[ property ];

			if ( end instanceof Array ) {

				_object[ property ] = _interpolationFunction( end, value );

			} else {

				// Parses relative end values with start as base (e.g.: +10, -3)
				if ( typeof(end) === "string" ) {
					end = start + parseFloat(end, 10);
				}

				// protect against non numeric properties.
				if ( typeof(end) === "number" ) {
					_object[ property ] = start + ( end - start ) * value;
				}

			}

		}

		if ( _onUpdateCallback !== null ) {

			_onUpdateCallback.call( _object, value );

		}

		if ( elapsed == 1 ) {

			if ( _repeat > 0 ) {

				if( isFinite( _repeat ) ) {
					_repeat--;
				}

				// reassign starting values, restart by making startTime = now
				for( property in _valuesStartRepeat ) {

					if ( typeof( _valuesEnd[ property ] ) === "string" ) {
						_valuesStartRepeat[ property ] = _valuesStartRepeat[ property ] + parseFloat(_valuesEnd[ property ], 10);
					}

					if (_yoyo) {
						var tmp = _valuesStartRepeat[ property ];
						_valuesStartRepeat[ property ] = _valuesEnd[ property ];
						_valuesEnd[ property ] = tmp;
					}

					_valuesStart[ property ] = _valuesStartRepeat[ property ];

				}

				if (_yoyo) {
					_reversed = !_reversed;
				}

				_startTime = time + _delayTime;

				return true;

			} else {

				if ( _onCompleteCallback !== null ) {

					_onCompleteCallback.call( _object );

				}

				for ( var i = 0, numChainedTweens = _chainedTweens.length; i < numChainedTweens; i++ ) {

					_chainedTweens[ i ].start( time );

				}

				return false;

			}

		}

		return true;

	};

};


TWEEN.Easing = {

	Linear: {

		None: function ( k ) {

			return k;

		}

	},

	Quadratic: {

		In: function ( k ) {

			return k * k;

		},

		Out: function ( k ) {

			return k * ( 2 - k );

		},

		InOut: function ( k ) {

			if ( ( k *= 2 ) < 1 ) return 0.5 * k * k;
			return - 0.5 * ( --k * ( k - 2 ) - 1 );

		}

	},

	Cubic: {

		In: function ( k ) {

			return k * k * k;

		},

		Out: function ( k ) {

			return --k * k * k + 1;

		},

		InOut: function ( k ) {

			if ( ( k *= 2 ) < 1 ) return 0.5 * k * k * k;
			return 0.5 * ( ( k -= 2 ) * k * k + 2 );

		}

	},

	Quartic: {

		In: function ( k ) {

			return k * k * k * k;

		},

		Out: function ( k ) {

			return 1 - ( --k * k * k * k );

		},

		InOut: function ( k ) {

			if ( ( k *= 2 ) < 1) return 0.5 * k * k * k * k;
			return - 0.5 * ( ( k -= 2 ) * k * k * k - 2 );

		}

	},

	Quintic: {

		In: function ( k ) {

			return k * k * k * k * k;

		},

		Out: function ( k ) {

			return --k * k * k * k * k + 1;

		},

		InOut: function ( k ) {

			if ( ( k *= 2 ) < 1 ) return 0.5 * k * k * k * k * k;
			return 0.5 * ( ( k -= 2 ) * k * k * k * k + 2 );

		}

	},

	Sinusoidal: {

		In: function ( k ) {

			return 1 - Math.cos( k * Math.PI / 2 );

		},

		Out: function ( k ) {

			return Math.sin( k * Math.PI / 2 );

		},

		InOut: function ( k ) {

			return 0.5 * ( 1 - Math.cos( Math.PI * k ) );

		}

	},

	Exponential: {

		In: function ( k ) {

			return k === 0 ? 0 : Math.pow( 1024, k - 1 );

		},

		Out: function ( k ) {

			return k === 1 ? 1 : 1 - Math.pow( 2, - 10 * k );

		},

		InOut: function ( k ) {

			if ( k === 0 ) return 0;
			if ( k === 1 ) return 1;
			if ( ( k *= 2 ) < 1 ) return 0.5 * Math.pow( 1024, k - 1 );
			return 0.5 * ( - Math.pow( 2, - 10 * ( k - 1 ) ) + 2 );

		}

	},

	Circular: {

		In: function ( k ) {

			return 1 - Math.sqrt( 1 - k * k );

		},

		Out: function ( k ) {

			return Math.sqrt( 1 - ( --k * k ) );

		},

		InOut: function ( k ) {

			if ( ( k *= 2 ) < 1) return - 0.5 * ( Math.sqrt( 1 - k * k) - 1);
			return 0.5 * ( Math.sqrt( 1 - ( k -= 2) * k) + 1);

		}

	},

	Elastic: {

		In: function ( k ) {

			var s, a = 0.1, p = 0.4;
			if ( k === 0 ) return 0;
			if ( k === 1 ) return 1;
			if ( !a || a < 1 ) { a = 1; s = p / 4; }
			else s = p * Math.asin( 1 / a ) / ( 2 * Math.PI );
			return - ( a * Math.pow( 2, 10 * ( k -= 1 ) ) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) );

		},

		Out: function ( k ) {

			var s, a = 0.1, p = 0.4;
			if ( k === 0 ) return 0;
			if ( k === 1 ) return 1;
			if ( !a || a < 1 ) { a = 1; s = p / 4; }
			else s = p * Math.asin( 1 / a ) / ( 2 * Math.PI );
			return ( a * Math.pow( 2, - 10 * k) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) + 1 );

		},

		InOut: function ( k ) {

			var s, a = 0.1, p = 0.4;
			if ( k === 0 ) return 0;
			if ( k === 1 ) return 1;
			if ( !a || a < 1 ) { a = 1; s = p / 4; }
			else s = p * Math.asin( 1 / a ) / ( 2 * Math.PI );
			if ( ( k *= 2 ) < 1 ) return - 0.5 * ( a * Math.pow( 2, 10 * ( k -= 1 ) ) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) );
			return a * Math.pow( 2, -10 * ( k -= 1 ) ) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) * 0.5 + 1;

		}

	},

	Back: {

		In: function ( k ) {

			var s = 1.70158;
			return k * k * ( ( s + 1 ) * k - s );

		},

		Out: function ( k ) {

			var s = 1.70158;
			return --k * k * ( ( s + 1 ) * k + s ) + 1;

		},

		InOut: function ( k ) {

			var s = 1.70158 * 1.525;
			if ( ( k *= 2 ) < 1 ) return 0.5 * ( k * k * ( ( s + 1 ) * k - s ) );
			return 0.5 * ( ( k -= 2 ) * k * ( ( s + 1 ) * k + s ) + 2 );

		}

	},

	Bounce: {

		In: function ( k ) {

			return 1 - TWEEN.Easing.Bounce.Out( 1 - k );

		},

		Out: function ( k ) {

			if ( k < ( 1 / 2.75 ) ) {

				return 7.5625 * k * k;

			} else if ( k < ( 2 / 2.75 ) ) {

				return 7.5625 * ( k -= ( 1.5 / 2.75 ) ) * k + 0.75;

			} else if ( k < ( 2.5 / 2.75 ) ) {

				return 7.5625 * ( k -= ( 2.25 / 2.75 ) ) * k + 0.9375;

			} else {

				return 7.5625 * ( k -= ( 2.625 / 2.75 ) ) * k + 0.984375;

			}

		},

		InOut: function ( k ) {

			if ( k < 0.5 ) return TWEEN.Easing.Bounce.In( k * 2 ) * 0.5;
			return TWEEN.Easing.Bounce.Out( k * 2 - 1 ) * 0.5 + 0.5;

		}

	}

};

TWEEN.Interpolation = {

	Linear: function ( v, k ) {

		var m = v.length - 1, f = m * k, i = Math.floor( f ), fn = TWEEN.Interpolation.Utils.Linear;

		if ( k < 0 ) return fn( v[ 0 ], v[ 1 ], f );
		if ( k > 1 ) return fn( v[ m ], v[ m - 1 ], m - f );

		return fn( v[ i ], v[ i + 1 > m ? m : i + 1 ], f - i );

	},

	Bezier: function ( v, k ) {

		var b = 0, n = v.length - 1, pw = Math.pow, bn = TWEEN.Interpolation.Utils.Bernstein, i;

		for ( i = 0; i <= n; i++ ) {
			b += pw( 1 - k, n - i ) * pw( k, i ) * v[ i ] * bn( n, i );
		}

		return b;

	},

	CatmullRom: function ( v, k ) {

		var m = v.length - 1, f = m * k, i = Math.floor( f ), fn = TWEEN.Interpolation.Utils.CatmullRom;

		if ( v[ 0 ] === v[ m ] ) {

			if ( k < 0 ) i = Math.floor( f = m * ( 1 + k ) );

			return fn( v[ ( i - 1 + m ) % m ], v[ i ], v[ ( i + 1 ) % m ], v[ ( i + 2 ) % m ], f - i );

		} else {

			if ( k < 0 ) return v[ 0 ] - ( fn( v[ 0 ], v[ 0 ], v[ 1 ], v[ 1 ], -f ) - v[ 0 ] );
			if ( k > 1 ) return v[ m ] - ( fn( v[ m ], v[ m ], v[ m - 1 ], v[ m - 1 ], f - m ) - v[ m ] );

			return fn( v[ i ? i - 1 : 0 ], v[ i ], v[ m < i + 1 ? m : i + 1 ], v[ m < i + 2 ? m : i + 2 ], f - i );

		}

	},

	Utils: {

		Linear: function ( p0, p1, t ) {

			return ( p1 - p0 ) * t + p0;

		},

		Bernstein: function ( n , i ) {

			var fc = TWEEN.Interpolation.Utils.Factorial;
			return fc( n ) / fc( i ) / fc( n - i );

		},

		Factorial: ( function () {

			var a = [ 1 ];

			return function ( n ) {

				var s = 1, i;
				if ( a[ n ] ) return a[ n ];
				for ( i = n; i > 1; i-- ) s *= i;
				return a[ n ] = s;

			};

		} )(),

		CatmullRom: function ( p0, p1, p2, p3, t ) {

			var v0 = ( p2 - p0 ) * 0.5, v1 = ( p3 - p1 ) * 0.5, t2 = t * t, t3 = t * t2;
			return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;

		}

	}

};

// UMD (Universal Module Definition)
( function ( root ) {

	if ( typeof define === 'function' && define.amd ) {

		// AMD
		define( [], function () {
			return TWEEN;
		} );

	} else if ( typeof exports === 'object' ) {

		// Node.js
		module.exports = TWEEN;

	} else {

		// Global variable
		root.TWEEN = TWEEN;

	}

} )( this );

},{}],91:[function(require,module,exports){
module.exports={
  "name": "aframe",
  "version": "0.1.3",
  "description": "Building blocks for the VR Web",
  "main": "index.js",
  "scripts": {
    "start": "npm run dev",
    "dev": "npm run build && node ./scripts/budo",
    "browserify": "browserify ./index.js -s 'AFRAME'",
    "build": "mkdir -p build/ && npm run browserify -- --debug -o build/aframe.js",
    "dist": "mkdir -p dist/ && npm run browserify -s -- --debug | exorcist dist/aframe.js.map > dist/aframe.js && uglifyjs dist/aframe.js -c warnings=false -m -o dist/aframe.min.js",
    "preghpages": "npm run dist && rm -rf gh-pages && mkdir -p gh-pages && cp -r {.nojekyll,dist,lib,examples,index.html,style} gh-pages/. 2>/dev/null || : && git checkout dist/ && replace 'build/aframe.js' 'dist/aframe.min.js' gh-pages/ -r --silent",
    "ghpages": "node ./scripts/gh-pages",
    "gh-pages": "npm run ghpages",
    "version": "npm run dist",
    "release:bump": "npm version patch --preminor && git commit -a -C HEAD --amend",
    "release:push": "npm login && npm publish && git push --follow-tags",
    "lint": "semistandard -v $(git ls-files '*.js') | snazzy",
    "precommit": "npm run lint"
  },
  "repository": "aframevr/aframe",
  "license": "MIT",
  "devDependencies": {
    "budo": "^7.0.2",
    "exorcist": "^0.4.0",
    "gh-pages": "^0.4.0",
    "html-minifier": "^0.8.0",
    "husky": "^0.10.1",
    "replace": "^0.3.0",
    "semistandard": "^7.0.2",
    "snazzy": "^2.0.1",
    "uglifyjs": "^2.4.10"
  },
  "dependencies": {
    "aframe-core": "^0.1.6",
    "browserify": "^11.0.1",
    "browserify-css": "^0.8.2",
    "polymerize": "^1.0.0"
  },
  "link": true,
  "browserify": {
    "transform": [
      [
        "polymerize",
        {
          "match": ".*.html$"
        }
      ]
    ]
  },
  "semistandard": {
    "ignore": [
      "build/**",
      "dist/**",
      "lib/vendor/**",
      "examples/_js/**"
    ]
  },
  "keywords": [
    "aframe",
    "aframe-core",
    "vr",
    "webvr",
    "3d",
    "three",
    "components",
    "elements"
  ]
}

},{}]},{},[28])(28)
});
//# sourceMappingURL=aframe.js.map