generative art

from Mike Hergaarden: As for generative art in Unity, the easiest approach would be to use the built in particle system, there are a lot of exposed settings. Particle physics etc are all possible.
However, also still very doable is to use a spline controller to have objects move along a certain path: (Suggested here )
Then another topic highlights the use of Metaballs and Voxel Skinning:

I'm skipping the details of the previous subjects for now as I remember an article that might be a great resource:
Shiftcontrol is (was) the company that has been doing a lot of generative art in Unity. They once wrote a short article in a Unity magazine that has only been around for 3 issues.