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POcss3 poor animation performance (Chrome only)
 

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  1. POcss3 poor animation performance (Chrome only)
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    <p>I'm working on a site using css3 animations, it works perfectly in Safari and Firefox, but for some reason performance in Chrome is awful. (around 15 fps)</p> <p><a href="http://triple-tested.com/animations/" rel="nofollow">http://triple-tested.com/animations/</a></p> <p>The animations are quite simple, basically a few large circles layered up. I've also added a few png sprite animations using javascript.</p> <p>I know about hardware acceleration but I don't think that is the problem, it seems to be some quirk that is unique to Chrome. The css animations perform 'OK' alone but once I add the sprites performance drops considerably. </p> <pre><code> $.fn.spriteme = function(options) { var settings = $.extend({ framerate: 30 }, options); return this.each(function(){ var $el = $(this), curframe = 0, width = settings.width, fr = 1000/settings.framerate; (function animloop(){ if(curframe == settings.frames) { curframe = 0; } $el.css('background-position', (curframe*width)*-1 + 'px center'); curframe++; setTimeout( animloop, fr ); })(); }); }; </code></pre> <p>This is the code I've wrote to animate my sprites, but as I said it performs perfect in Safari and Firefox so I don't think it's the problem. Chrome seems to have an issue with animating using css alongside sprites.</p> <p>I've tried everything I can find online but if anyone has any suggestions please let me know.</p> <p>I'm using the latest stable chrome on mac btw (17.0.963.93)</p> <p>You can see the css (using less) here btw <a href="http://triple-tested.com/animations/css/style.less" rel="nofollow">http://triple-tested.com/animations/css/style.less</a></p>
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    1. USmichael
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    1. CODo you have any CSS shadows on the page? I have noticed that chrome tends to run exceptionally slowly when redrawing shadows
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      1. USdanwellman
    2. COnope, no shadows. It's basically four or five circular images rotating.
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      1. POcss3 poor animation performance (Chrome only)
      1. USmichael
    3. CONice looking animation! I gave it a go using 18.<something> (beta). Still jittery. You might want to take this issue to their tracker to see what the devs have to say. See http://code.google.com/p/chromium/issues .
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      1. POcss3 poor animation performance (Chrome only)
      1. USJuho Vepsäläinen
 

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