oops wrong link in my prev post, I'll try again
Hypertexture and terrain

If you start from there and experiment a bit, you should be able to achieve the effect you wanted.
I certainly didnt read 30,000 books...

"I paint that which comes from the imagination or from dreams, or from an unconscious drive. I photograph the things that I do not wish to paint, the things which already have an existence."
Man Ray, modernist painter
http://artpearl.redbubble.com/