Bryce 3D doesn't really do anything POV-Ray can't do (better).  I assume
you are talking about the volume materials in Bryce.  There's one option
to do specular shading on a volume, which POV can't do, but it's so
incredibly slow that it's hardly useful....however, it may be possible
to do even this using a proper scattering model with media.

There's also a lot of problems with volumes in Bryce.  They tend to have
a lot of artifacts like dark edges.

-Mike

Andrew Cocker wrote:
> 
> Thorsten Froehlich wrote in message <36e81444.0@news.povray.org>...
> <snip>
> 
> >Did you try a color map and transparency? I am not completely sure, but it
> >should work...
> >
> >    Thorsten
> 
> All that does is make parts of the surface clear..the entire inside of the object
remains
> completely empty. I want the object to appear completely solid, but with color_map
entries
> cut into it. I dont want to use media to do this, as I want to be able to texture
the
> object as any other ( metal finishes etc )
> Anyway, using your suggestion of a Clear map entry, you can't really use highlights
as
> they appear on the clear section also. I suppose you could use a texture_map to get
round
> this problem, but it's not what I was originally suggesting.
> I know that Bryce3D has such 3d procedural texturing...not sure how it's implemented
> though.
> 
> ---------
> Andy

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