A bunch of resources are available for 2 dimensional cellular automata (CA). I had an idea to create (easy) and visualize (hard) 3 dimensional CAs. For visualization I tried volume visualization methods. I used the oldskool fire effect for these examples.
First attempt was created with Graphoscope.
It uses ray casting, and box cells, and is written on CPU. It is quite slow,
but this is still the most promising-looking one, so I will try to make it faster
using the GPU.
and some glitches (find ca3_x.gif files)