Unless you use big meshes from some commercial vendor, "lots of trees" is
going to be particularly painful. Since you fortunately don't care that much
for detail, there are two solutions for this problem :
1. make simple trees made of  few primitives (an irregular blob mounted on a
cylinder should do, or even spheres), and apply a texture with transparent
holes in it. Scale down the texture so that it looks fuzzy enough.
2. scan or download real life pictures of trees, apply them on boxes or
triangles and give them a transparent background. Be sure they face the camera
(which may be difficult sometimes). This is what is often done in commercial
software (including Bryce) and this is very economical memory-wise.

G.

David Vincent-Jones wrote:

> Should have been more specific:
> How about a treed, or woodsy, hillside...
> Rolling hills of trees, forested slopes.....
> Lots of trees, mixed species would be just fine...
> All pine trees also very acceptable....
> Season of the year not critical.... especially with pine.
> All from reasonable distance - no detail - no bark or individual leaves
> Anyway I guess you get a better picture now.
>

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