> One interesting thing to note about this scene is that it behaves
> differently with +UR and -UR.
>
> With +UR, POV-Ray says "Warning: unnecessary bounding
> object removed" and it renders *faster* without the bounds.

That is interesting.  Any idea why?  Without any bounds doesn't
it check every ray for intersections with the object.  I would
have thought that would slow it down.

So the UR flag does do something... still not sure exactly what.

Carl

Post a reply to this message