On Fri, 12 Mar 1999 08:43:46 -0500, Greg M. Johnson <@aol.com> wrote:
>Suggestions for additional topics include:>>1. Why raytracers cannot do caustics :>2. Why raytracers cannot make a "homemade" spotlight:
These are, of course, both the same topic. Clearly one would need
to start with a definition of caustics.
