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                <canvas id="glcanvas"></canvas>


                body {
  margin: 0;
  padding: 0;
  overflow: hidden; 



* Example: Mixing a Gampad with four video sources
* Fades two videos together

var renderer = new GlRenderer();

var video1 = new VideoSource( renderer, { src: ''} )
var video2 = new VideoSource( renderer, { src: ''} )

// create a mixer, mix red and green
var mixer1 = new Mixer( renderer, { source1: video1, source2: video2 });

// finally asign that mixer to the output
var output = new Output( renderer, mixer1 )

// initialize the renderer and start the renderer
renderer.init();         // init
renderer.render();       // start update & animation

// add a function that moves the mixer handle from left to right.
var c = 0;
var f = 0;
setInterval( function() {
  c += 0.1 // << try and change this in 0.1
  f = ( Math.sin(c) * 0.5 ) + 0.5  
  mixer1.pod ( f );
}, 1)