Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!ames!hc!lanl!opus!afoiani From: afoiani@dante.nmsu.EDU (Anthony Foiani) Newsgroups: comp.graphics Subject: Re: ray tracing transparent images and color Message-ID: Date: 11 Jun 89 01:51:49 GMT References: <2809@scolex.sco.COM> <5413@rpi.edu> Sender: news@nmsu.edu Organization: New Mexico State University, Las Cruces, NM Lines: 20 In-reply-to: kyriazis@rpics's message of 11 Jun 89 00:19:14 GMT hmm... sounds to me like he's talking about looking through a glass window or something to that effect... alternatively, it could be translated as placing a certain filter over an image; the various multiplication schemes which have shown up on this topic would make seem to work when it is considered a filter on the "lens" of a compu-camera. that is, using the 0..1 scale that many people seem to like, having a blue filter with of {0,0,1}, this would work; it would transmit very little of the r and g objects, but would allow the blue to pass essentially unhampered. i'm by *NO* means an expert, but this seems to make a wierd sort of sense. hoped this helped, -- tony foiani (afoiani@nmsu.edu) "And remember...don't lose your (mcsajf@nmsuvm1.bitnet) head..." -The Kurgan, HIGHLANDER