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Animated GIFs the Hard Way
When doing the new website for the Sublime Text 2.0 launch, instead of just screenshots, I wanted to have animations to demonstrate some of its features. One of the criteria was that the animations should work everywhere, from IE6 to an iPad. This ruled out two common video options, Flash and the <video> element. Animated GIF files would have been a candidate, except for two issues: the 256 color
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よりé©åˆ‡ãªã‚‚ã®ãŒè¿½åŠ ã•ã‚ŒãŸã®ã§ãã£ã¡ã‚’使ã„ã¾ã—ょã†ã€‚ setInterval/setTimeout → requestAnimationFrame; ã“ã‚Œã¾ã§ã¯ setInterval function render(){ // アニメーション 1フレーム分ã®å‡¦ç† } setInterval(render, 1000 / 60); ã“ã‚Œã¯ã‚‚ã†å¤ã„。 ã“ã‚Œã‹ã‚‰ã¯ requestAnimationFrame function animationLoop(){ render(); requestAnimationFrame(animationLoop); } animationLoop(); ã“ã†ã™ã¹ã—。 requestAnimationFrameã«ã™ã‚‹ã¨ä½•ãŒã„ã„ã®ï¼Ÿ 複数ã®ã‚¢ãƒ‹ãƒ¡ãƒ¼ã‚·ãƒ§ãƒ³æ写処ç†ã‚’一ã¤ã«ã¾ã¨ã‚ã¦æœ€é©åŒ–ã—ã¦ãれる åŒã˜ç”¨ã«å‹•ã‹ã—ã¦ã„る物体A,Bã®å‹•ããŒæ¬¡ç¬¬ã«ãšã‚Œã¦ã„ãã¨ã‹ãŒãªããª
Better JavaScript animations with requestAnimationFrame - Human Who Codes
Posted at May 3, 2011 by Nicholas C. Zakas Tags: Animation, JavaScript, mozRequestAnimationFrame, requestAnimationFrame, webkitRequestAnimationFrame For a long time, timers and intervals have been the state of the art for JavaScript-based animations. While CSS transitions and animations make some animations easy for web developers, little has changed in the world of JavaScript-based animation over
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