Created
July 31, 2014 02:18
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>static.</title> | |
| <link rel="stylesheet" href="static.css"> | |
| <script src="static.js"></script> | |
| </head> | |
| <body> | |
| <div id="container"> | |
| <canvas id="static" width="400" height="400"></canvas> | |
| </div> | |
| </body> | |
| </html> |
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| body { | |
| margin: 0; | |
| background: #320 url(http://www.thisiscolossal.com/wp-content/uploads/2013/01/4.gif) no-repeat center center fixed; | |
| background-size: cover; | |
| } | |
| canvas { | |
| margin: auto; | |
| display: block; | |
| width: 100%; | |
| height: 100%; | |
| } |
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| var static = (function () { | |
| var brilliance = 255; | |
| var context; | |
| var imageData; | |
| var pixel; | |
| var opacity = 255; | |
| delta = 0.5; | |
| return function (canvas) { | |
| // Set these up just the first time. | |
| context = context || canvas.getContext('2d'); | |
| imageData = imageData || context.createImageData(canvas.width, canvas.height); | |
| pixel = pixel || imageData.data; | |
| for (var i = 0; i < pixel.length; i += 4) { | |
| var v = Math.random() * brilliance; | |
| pixel[i] = pixel[i + 1] = pixel[i + 2] = v; | |
| //pixel[i] = pixel[i + 2] = 0; | |
| pixel[i + 3] = opacity; | |
| } | |
| context.putImageData(imageData, 0, 0); | |
| if (opacity >= 255 || opacity < 0) { | |
| delta *= -1; // Toggle the sign. | |
| } | |
| opacity += delta; | |
| requestAnimationFrame(static); | |
| } | |
| })(); | |
| window.onload = function () { | |
| console.log('static'); | |
| var canvas = document.getElementById('static'); | |
| static(canvas) | |
| }; |
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