Tom Melly wrote:
>Just to muddy the waters... specular reflection of light can be done in POV by
>using photons (like many raytracers, POV doesn't handle specular reflection of
>light easily, since rays are traced from the camera to the light source).

Hmm, I've been hopping to and fro in the docs - must read 'em properly - and
I did read about photons.  I will go back and try to figure out what they
can do for me (and what their limitations are).

In terms of CPU time, it doesn't necessarily represent a problem if this
takes weeks of CPU per picture.  Firstly, I don't need to do it very often,
and secondly, I can always beg some time on our Beowulf cluster (hmm, I
now remember reading that photons don't lend themselves well to clustered
tracing...).

thanks
Neil

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