Niki Estner wrote:

> Unfortunately this needs far too much memory. (much more that I have)
> I tried something alike with triangles (in a mesh), but with that it'd
> need weeks to render the scene (spheres with lots of swapping are actually
> faster!)

Mesh have the advantage that when you copy them they need only some bytes 
(probably a few hundreds) for the copy. This does not help when you use 
mesh of a single grass blade and copy it 500000 times. But when you instead 
make a mesh of 1000 grass blades and copy it 500 times you only need the 
memory for 1000 grass blades plus 499 times the memory for the mesh copy. 
It should also render reasonably fast. Rune has made an intersting grass 
texture that actually works on the texture level and does not simulate the 
individual blades with objects 
(http://runevision.com/3d/include/include.asp).

- Micha

-- 
http://objects.povworld.org - the POV-Ray Objects Collection

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