GreenSock

With the release of TweenMax, bezier tweening has finally made its way into the TweenLite family. But how well does it perform? TweenLite has gotten a lot of attention because of its speed and scalability, but will the extra code in TweenMax weigh it down and kill performance? Well, I sure tried to keep things nimble and I think you'll be pleased, but don't take my word for it. See for yourself. I ported my speed test over to do bezier tweens compared to the only other tweening engines I knew of that do bezier tweening - Tweener and Twease (the AS3 version of Twease isn't quite ready yet though). Dowload the source file here: AS2 or AS3. No trickery involved; the same code drives everything except for the tweens themselves. Basically it tweens white "stars" from the center outward at random angles, sizes, and with random delays. It randomly chooses a two control point bezier path for each star. When a star's tween ends, it just repositions itself at the center and starts again. You can play with the number of stars and the duration of the tweens to see how the tweening engines handle various types of loads .

And here's a similar AS3 test. Keep in mind that AS3 runs in the MUCH faster AVM2, so I kicked up the instance numbers to keep it challenging.

Click here to see the standard speed tests.

Get more info about TweenMax here: TweenMax (AS2) OR TweenMax (AS3)