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Date: Fri, 08 Jul 94 16:46:27
Subject: SHADOWS VS. SMOOTHING
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 > What I believe to be happening is that shadow maps and ray traced
 > shadows are not being smoothed over the boundary of two adjacent
 > polygons whose included angle is within the "smoothing angle". It is
 > as if these type of shadows don't know that I have enabled smoothing
 > for the surface.

What you are doing is mistakenly assuming that setting Smooting on for surfaces
also makes your polygons smooth. If you look at the edges of a sphere with too
few polygons you will notice that the sphere is not round, even if you have
smoothing surfaces on. This is the same problem that is happening to your
shadow effects. Solution? Subdivide the sphere, and keep subdividing until the
problem disappears (within reason, and especially RAM, of course..)

Alan Chan
Graphics/Animation Design
Vision Video Systems
[e-mail]