Perlin noise

Hello nodeboxers,

has anybody already coded a perlin noise class for nodebox?

here's the link to Ken Perlin's work
http://mrl.nyu.edu/~perlin/noise/

+

here's a python implementation that I don't fully understand
(poor coding +math skills, I guess)
http://twistedmatrix.com/users/acapnotic/wares/code/perlin/

ciao
G.

There is something here about a Perlin filter for Core Image that may be of interest:

http://www.samkass.com/blog/C1936590049/E888826410/index.html

Currently I know too little of the subject to give you a decent answer.