Doesn’t that clip in the demo reel explain enough? It shows the original footage, the keyed footage, the animated particle shapes used, the disintegrated particles alone, then the whole thing put together. If you’ve already been through the disintegrating people tutorial, then it’s just a matter of using the animated particle shapes.
Oh, and there’s also the “reverse”, where the particles form the person. That was done by reversing the order of the frames in a video editing app.
Alan.
wondertouch