Hi everyone,
This is a weekend experiment. I projected the caustics from a mesh animated with shape-keys and got an Interesting Motion graphics.
Check it out.
Rendered in Yafaray 0.1.5.
Hope you’ll like…
Blenjoy…
Are we back in the 70’s again? Psychedelic… 
Nice result but I find it just a little overkill to use caustics to do a 2D animation.