Created
December 20, 2013 20:38
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Grain
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| <html> | |
| <head> | |
| <title>Grain</title> | |
| <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> | |
| <style> | |
| * { | |
| margin: 0; padding: 0; | |
| overflow: hidden; | |
| } | |
| </style> | |
| <script> | |
| $(function() { | |
| var canvas = document.getElementById('ctx'), H, W, x, y; | |
| resize(); | |
| var c = canvas.getContext('2d'); | |
| function resize() { | |
| H = $(window).innerHeight(), | |
| W = $(window).innerWidth(); | |
| canvas.width = W; | |
| canvas.height = H; | |
| } | |
| function pixel() { | |
| for(var i = 0; i < 1000; i++) { | |
| function n() { | |
| return Math.round(Math.random() * 255); | |
| } | |
| var x = Math.round(W * Math.random()), | |
| y = Math.round(H * Math.random()); | |
| var p = c.getImageData(x, y, 1, 1).data; | |
| if(p[0] == 0) j = 255; | |
| if(p[0] == 255) j = 0; | |
| var color = 'rgb('+j+','+j+','+j+')'; | |
| /*color = 'rgb('+n()+','+n()+','+n()+')';*/ | |
| /*color = 'rgb('+j+','+j+','+j+')';*/ | |
| c.fillStyle = color; | |
| c.fillRect(x, y, 1, 1); | |
| } | |
| }; | |
| window.setInterval(pixel, 1); | |
| $(window).resize(function() { resize(); }); | |
| }); | |
| </script> | |
| </head> | |
| <body> | |
| <canvas id="ctx"></canvas> | |
| </body> | |
| </html> |
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