algorithmic modeling for Rhino
You can find here 3 examples showing different ways to create an animation using Squid.
Original definition made by Pieter Segeren.
Here is the base definition made by Pieter, I changed it a bit to use only standard components (+Squid of course).
All of them have some pros and cons,
nonetheless the output is the same :
From this point, you'll have to use some 3rd party software to produce a gif file out of that png series.
Please don't hesitate to post your animations in the comment section here.