I had purchased this Cartoon Animation book off amazon and it has got good content in it! It’s quite old fashioned, but the older techniques are still used today, even if todays style has changed. One page had a little about the bouncing ball, it was useful seeing how they brought this movement to their characters.
We have been given the task to animate a tennis, bowling and rubber ball in Maya. Some quick reference videos found online displayed below.
Graph of bouncing ball
Link to page where I found this graph. Mystery of the bouncing ball. It backed up the little sketchy graphs I had drawn whilst watching reference videos. The time between each bounce gradually gets faster whilst the height halves. Pretty simple, but I ain’t good at maths. 😛