clipka wrote:
> Gerhard Oosthuizen schrieb:
>> It would be nice to have a fractal object for trees and lightning.
>> Tree-like fractal textures would also be nice for veins and leaves.
> 
> I guess you're talking about fractals of the recursive kind, as in:
> 
>     #declare MyTree {
>       cylinder { <0,0,0>, <0,1,0> }
>       object { MyTree scale 0.5 rotate  z*30 translate y*1 }
>       object { MyTree scale 0.7 rotate -z*20 translate y*1 }
>     }

Aren't these termed L-Systems?  The POV-Ray SDL is quite well suited to 
writing them (in a slightly different manner from what's posted above, 
of course :) ).

Additionally, there's always the POV-Tree utility :)  I don't think 
anyone's done lightning yet... hmm, I smell a weekend project coming on...

...Chambers

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