Thanks to everyone who offered encouragement and advice. Everyone else,
check it out!!! This is just a sketch, but the major "Escher" elements are
in place, and all done with CSG.
http://www.dlugosz.com/POV/another_world.html
When I came back into the room and saw the full-size anti-aliased rendering,
I remembered just why we spend hours doing this stuff. <g>
--John
