quinn@killington.dartmouth.edu (05/29/89)
I have recently tried to use Mark's ray tracer on Eric Haines' database with no modifications. Three problems show up. 1) The border areas are very squashed. This is especially apparent in the sphereflake image. 2) The tetra image shows up with about a third of another pyramid at the left side of the image. 3) In rings and tree, cones/cylinders seem to be the wrong shape or size. At least, the pictures look different from what is in the IEEE CGA article showing Eric's pictures. I don't know if these problems are caused by the ray tracer, the database, or both. If anyone has had similar problems and/or has fixes, please reply here or by e-mail. Thanks in advance Jerry Quinn quinn@killington.dartmouth.edu