Darren New wrote:

> If I have a bunch of lights inside a box, one light outside of a box, 
> one object to illuminate outside the box, and one camera outside the 
> box, the trace goes much faster if I remove the lights inside the box 
> from the scene. Apparently, POV isn't clever enough to know that the 
> lights inside the solid opaque box don't affect the scene outside the box.

More exactly: POV-Ray figuring out which lights should affect stuff 
outside the box is *why* it goes slower. :-P

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