JRG wrote:
> 
> A fractal pigment?
> POV-Ray has so many built in fractal patterns that you can use to displace an iso
> plane.
> 

This is usually not a good idea, because fractal patterns contain
non-continuous areas which lead to infinite gradients in isosurfaces.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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