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var canvas = document.createElement('canvas'); | |
var gl; | |
var debugInfo; | |
var vendor; | |
var renderer; | |
try { | |
gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl'); | |
} catch (e) { | |
} |
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@-webkit-keyframes bgcolor { 0% { background-color: #ffccf2; } | |
50% { background-color: #ccffcc; } | |
100% { background-color: #ccffff; } } | |
@-moz-keyframes bgcolor { 0% { background-color: #ffccf2; } | |
50% { background-color: #ccffcc; } | |
100% { background-color: #ccffff; } } | |
@-ms-keyframes bgcolor { 0% { background-color: #ffccf2; } | |
50% { background-color: #ccffcc; } |
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/* Following canvas-based Perlin generation code originates from | |
* iron_wallaby's code at: http://www.ozoneasylum.com/30982 | |
*/ | |
function randomNoise(canvas, x, y, width, height, alpha) { | |
x = x || 0; | |
y = y || 0; | |
width = width || canvas.width; | |
height = height || canvas.height; | |
alpha = alpha || 255; | |
var g = canvas.getContext("2d"), |