Analysis of information sources in references of the Wikipedia article "DigiCel FlipBook" in Simple English language version.
Thanks for the first 10 years!
You have to draw every frame. FlipBook is for real animators who want to do real animation. If you just draw key frames and then push them around you generally end up with animation that looks like a computer did it. FlipBook is for real hand-drawn animation like the good old Disney stuff.