Created
August 7, 2014 05:47
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>35569</title> | |
| </head> | |
| <body> | |
| <canvas id="cv"></canvas> | |
| <script src="script.js"></script> | |
| </body> | |
| </html> |
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| var DIM = 1024; | |
| var DM1 = DIM - 1; | |
| var _sq = function(x) { return x * x; }; | |
| var _cb = function(x) { Math.abs(x * x * x); }; | |
| var _cr = function(x) { Math.pow(x, 1 / 3); }; | |
| var cv = document.getElementById("cv"); | |
| cv.width = DIM; | |
| cv.height = DIM; | |
| cv.style.position = "fixed"; | |
| cv.style.left = "0px"; | |
| cv.style.top = "0px"; | |
| document.body.appendChild(cv); | |
| var ctx = cv.getContext("2d"); | |
| var image_data = ctx.getImageData(0, 0, DIM, DIM); | |
| var data = image_data.data; | |
| var x = 0, y = 0; | |
| for(var i = 0, len = data.length ; i < len ; ) { | |
| data[i++] = red(x, y) >> 2; | |
| data[i++] = green(x, y) >> 2; | |
| data[i++] = blue(x, y) >> 2; | |
| data[i++] = 255; | |
| if(++x === DIM) { | |
| x = 0; | |
| y++; | |
| } | |
| } | |
| ctx.putImageData(image_data, 0, 0); | |
| function red(x, y) { | |
| return Math.cos(x & y) << 16; | |
| } | |
| function green(x, y) { | |
| return red(DIM - x, DIM - y); | |
| } | |
| function blue(x, y) { | |
| return Math.tan(x ^ y) << 8; | |
| } |
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