David Fontaine wrote:
> 
> That's what I was thinking, but my snow gets awfully dark. I'd increase ambient but
> first I'd have to fix the color problem. (White lighting I guess :-/ )
> 

Try changing the brilliance, that could help.

> 
> Also what I was thinking, but sounds like a lot of work, or a lot of work for the
> computer with a nice little trace() macro :) Will differencing a bunch of little
> tire marks from an RMF cuase a huge slowdown?
> 

I would use a normal (bump map) or an additional image_pattern pigment function
for the terrain isosurface.  The normal would not much increase the rendering
time, but the function would.

Christoph

--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/

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