<script id="vertex-shader" type="x-shader/x-vertex">

attribute vec4 vPosition;

uniform mat4 modelViewMatrix;

uniform mat4 projectionMatrix;

gl_Position = projectionMatrix*modelViewMatrix*vPosition;

<script id="fragment-shader" type="x-shader/x-fragment">

precision mediump float;

gl_FragColor = vec4(0.0, 0.0, 0.0, 1.0);

<p> </p>

<button id = "Button0">Increase theta</button>

<button id = "Button1">Decrease theta</button>

<button id = "Button2">Increase phi</button>

<button id = "Button3">Decrease phi</button>

<p> </p>

<button id = "Button4">Increase Subdivisions</button>

<button id = "Button5">Decrease Subdivisions</button>

<script type="text/javascript" src="../Common/webgl-utils.js"></script>

<script type="text/javascript" src="../Common/initShaders.js"></script>

<script type="text/javascript" src="../Common/MV.js"></script>

<script type="text/javascript" src="wireSphere.js"></script>

<canvas id="gl-canvas" width="512" height="512">

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