Entries Tagged as 'animation'

Animating Circular Paths Using CSS3 Animations.

March 3rd, 2013 by zoltan · 14 Comments

For the longest time I assumed that one couldn’t use CSS Transitions or animations to move DOM objects in anything but a straight path. Sure, a developer could use multiple keyframes to create a list of straight paths to simulate a curve, but I didn’t think one could just define a curve with just two keyframes. I was wrong. If you are coding for a modern web browser, then this is very doable!. This article will show you how it’s done in modern browsers, the math involved, and what to do with older versions of IE that don’t support CSS3 Animations.

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Tags: animation · animation · CSS · CSS3 · JavaScript · math · transform · transition

Cross-Browser Animated Image Masking (Even in IE) Using polyClip.js

January 14th, 2013 by zoltan · No Comments

dad I first created polyClip.js so I could combine the lossy compression algorithm of JPEGs with the ability to have a transparent area that PNGs allow. The result works well in all browsers, but can polyClip.js be fast enough to change the clipping area on-the-fly and even animate it at reasonably fast speeds with CSS3-style transformations on the clipping areas. The answer is a resounding yes and it is really fast even in older IE as well. This article will discuss in doing this with polyClip and a related library, Silk.js to do battery friendly and CPU efficient HTML5 animations.

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Tags: animation · canvas · HTML5 · Images · JavaScript · jQuery · requestAnimationFrame · transform