Here's a class for SuperCollider that generates perlin noise. I wrote it about a year ago to learn how that works but didn't finish the help file until now.
Some examples of images made with this class...
and this is an example from the help file that gives an overview of some settings of 'persistence vs octaves'. The 8 steps of persistence grow from 0.25 to 0.95 left to right. And octaves grows from 2 to 9 bottom to top.
- 090523: RedPerlin is now part of the redUniverse quark. Install it with