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Chambers schrieb:
> 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 :) ).
The SDL is indeed well-suited to this task - but the POV-Ray rendering
engine isn't; the SDL needs to take care of generating all those "limbs"
and leaves.
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