In article <q7lubvcvspu6h4f1sabho2niej44dcp26q@4ax.com>,
 Peter Popov <pet### [at] vipbg> wrote:

> >The perlin-noise function itself has got nothing to do with fractals 
> >(correct me if I'm wrong :-)
> 
> I think what "fractal" stands for in this context is that is
> inherently self-similar in different scales (to a limited extent
> though, unlike "true" fractals)

Perlin noise is not self-similar at different scales, though. It is 
self-similar at one scale only.
Now, things like sum 1/F-noise are fractal. (wrinkles, granite)

http://astronomy.swin.edu.au/~pbourke/texture/perlin/

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/

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