I’ve done a 3D line-based random snowflake generator in C# (OpenGL) a few years ago. Just lines, of random lengths and directions, but forming a “growing” structure, like a branch. Then copied the structure (first like a mirror copy around an imaginary axis, then rotating it using the “polar” coordinates). After all that I got the symmetry that looked kind of like a snowflake. Also added the coloring based on the level (generation) where the line was - the lines at the edges were brighter (or something like that).

I didn’t have time to do similar stuff, but recently I discovered vvvv and I hope to “convert” the code to a vvvv patch. Then I would use a MIDI controller to control the snowflake parameters. Some parameters would react to MIDI notes and OSC parameters from Ableton Live using OSCglue :)

Anyway… That was my dream for a while, but I don’t have time to realize it.