<button id = "Button1">More Particles</button>

<button id = "Button2">Fewer Particles</button> <p></p>

<button id = "Button3">Faster</button>

<button id = "Button4">Slower</button> <p></p>

<button id = "Button5">Larger Particles</button>

<button id = "Button6">Smaller Particles</button> <p></p>

<button id = "Button7">Toggle Gravity</button> <p></p>

<button id = "Button8">Toggle Resitution</button> <p></p>

<button id = "Button9">Toggle Repulsion</button> <p></p> <p></p>

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

attribute vec4 vPosition;

attribute vec4 vColor;

varying vec4 fColor;

uniform mat4 modelViewMatrix;

uniform mat4 projectionMatrix;

uniform float pointSize;

void main()

gl_Position = projectionMatrix * modelViewMatrix * vPosition;

fColor = vColor;

gl_PointSize = pointSize;

}

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

precision mediump float;

varying vec4 fColor;

gl_FragColor = fColor;

<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="particleSystem.js"></script>

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

Oops ... your browser doesn't support the HTML5 canvas element