Reaction-Diffusion Shader Interesting Errors

I’ve been getting some interesting results with a Reaction-Diffusion shader. It’s definitely not setup in the way it should be yet, but has produced some interesting images nonetheless. The stills are a bit misleading, as in motion, the effect is very hard to watch at the moment, as it flickers horribly.

This is based on a GLSL port of Sanch’s HLSL shader for vvvv, posted on the vvvv website, so all credit goes to him.
It’s hug fun to play with, though the results I’m getting look very different from the screenshots on his (still amazing) website.