In article <3B08FAAA.71D1F86D@gmx.de>, chr### [at] gmxde says...
> Probably not in this case, but for a complex CSG it could be useful, just
> imagine a lot of macro generated trees...
That is what I thought of.
You can generate a couple of braches, from this a couple of trees and 
from these a wood... this is only possible when reusing existing objects, 
otherwise memory requirements would be far too high.
(last winter I upgraded to 256 MB just to be able to render a single 
christmas tree :-))

Lutz-Peter

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