Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!samsung!munnari.oz.au!comp.vuw.ac.nz!actrix!Thomas.Farmer From: Thomas.Farmer@bbs.actrix.gen.nz Newsgroups: comp.graphics Subject: Quick Ray Tracer. Bug. Keywords: Cartography, Contour, photographs Message-ID: <1990Nov27.132455.28541@actrix.gen.nz> Date: 27 Nov 90 13:24:55 GMT References: <11805@spool.cs.wisc.edu> Sender: Thomas.Farmer@actrix.gen.nz (Thomas Farmer) Organization: Actrix Information Exchange Lines: 37 Dear oh dear. I hope this is the right group to post to... I couldn't think of any other. Basically, I seem to have found an undocumented 'feature' in Quick Ray tracer.... BTW This is QRT version 1.5 This feature (bug) happens when I put a perfectly transparent object in front of another, visible object. When the results are viewed in a mirror, the apparent distance of the visible object from the mirror is doubled. However, when viewed directly (not reflected) the image looks fine. Hopefully this is understandable! I would like to know why this might happen (is it to do with the ray-tracing model that QRT uses?) Even better, has anyone else found this program and even fixed it? It's currently really getting in my way on an animation I am doing... Mail to Thomas.Farmer@bbs.actrix.gen.nz or tfarmer@cavebbs.gen.nz Any help would be appreciated! (My last post got sent 14 times. It wasn't a problem at my system. I sincerely hope it doesn't happen again.) -- Yes folks, here it is! The unofficial .sig for Sleeping Beagle! mail Thomas.Farmer@bbs.actrix.gen.nz (I think) (P.S. I live in a sane society. I don't NEED a disclaimer!)