MustardMan wrote:
> What I would like to do is to get POVray to output another variable to the
> file which tells me if a point (on one or more panels) is in shade. Then
> the integrating program can calculate merrily away, and I don't have to
> worry about shadowing at inconvienient times!
> 
> Thanks,
> MM.

This would be easy to do with MegaPov's projection pattern. The pattern 
simulates a light_source and takes that information and returns it as a 
pigment. This includes any shadows which may affect your scene. From 
there you can call eval_pigment to test if a point is in a shadow or 
not. Since all you need is a yes or no concerning the sun's occlusion, 
this method should work just fine. Try it out! You'll need MegaPov 
(http://megapov.inetart.net/), of course :)

~Sam

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