More and more I am seeing an effect where pngs are loaded into a series of DIVs (or one div) and then sequenced though frame by frame either based on button click or based on scroll. I've tried to peek at the code, and I understand that javascript is doing the heavy lifting, but I'm still a bit lost, are there any tutorials on this technique? examples?
example of animation (multiple div) http://atanaiplus.cz/index_en.html:
example of animation (one div): http://www.hyundai-veloster.eu/
example of scrolling animation: http://discover.store.sony.com/tablet/#design/ergonomics
you just want to swap out the src attribute using a setInterval timer
var myAnim = setInterval(function(){
$(".myImageHolder").attr('src', nextImage);
}, 42);
The trick is how you generate nextImage. This largely depends on the naming conventions of your images, or which direction you wish the animation to run in
Update
Or use a plugin
Perhaps instead of switching between different images, use the spriting technique described in this question: How to show animated image from PNG image using javascript? [ like gmail ]
来源：https://stackoverflow.com/questions/9669805/how-do-i-animate-though-a-png-sequence-using-jquery-either-by-scrolling-or-trig