Crystalline Cortex (revival)
Back in 2009 I blogged about Crystalline Cortex from 2006. The original code doesn't work any more (GridFlow changed syntax years ago, and seems no longer maintained now), so I rewrote it in C99. Usage: 'make run', you need 'mplayer' and 'pngtopnm' along with the usual development tools.
Source code: crystalline-cortex.tar.bz2