Hi, This demo shows animated water caustics with a little fish randomly swimming around the screen.
I made this a few years ago. The challenge was to create a demo with exactly 25 vertices.
Now I just updated the blend file to 2.7, and I’ll post the blend file here.
Maybe someone will find it useful.
The water caustic textures were created using Caustics Generator 1.4
http://www.klitetools.com/comments.php?shownews=4130&catid=68
This tool allows you to make custom tileable water textures.
Feel free to ask any questions and here’s the file.
http://www.pasteall.org/blend/28345