Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!orca!javelin.sim.es.com!glacier!cpetterb From: cpetterb@glacier.sim.es.com (Cary Petterborg) Newsgroups: comp.graphics.visualization Subject: Re: Software for producing stereographic pairs Message-ID: Date: 16 May 91 15:18:34 GMT References: <1991May8.133241.7084@gpu.utcs.utoronto.ca> <1991May10.073212.8568@monu6.cc.monash.edu.au> <3988@ssc-bee.ssc-vax.UUCP> Sender: news@javelin.sim.es.com Organization: Evans & Sutherland Computer Corp. Lines: 32 In-Reply-To: coy@ssc-vax's message of 16 May 91 02:23:56 GMT Nntp-Posting-Host: mickey.sim.es.com In article <3988@ssc-bee.ssc-vax.UUCP> coy@ssc-vax (Stephen B Coy) writes: >In article <1991May10.073212.8568@monu6.cc.monash.edu.au> steve@monu6.cc.monash.edu.au (Steve Balogh (+61 3 573 2266)) writes: >>In article <1991May8.133241.7084@gpu.utcs.utoronto.ca> pindor@gpu.utcs.utoronto.ca (Andrzej Pindor) writes: >>>Does anyone know about software for IBM AT (or 386) which would produce >>>pairs of images, in green and red, of a 3D object, which when viewed through >>>green and red glasses, would give 3D illusion? > >My shareware ray tracer, Vivid, comes with a utility that lets you >combine two images into a red/blue 3d image. The results are pretty >good. Maybe I need an option for green? > >>woops.... I just realised that 256 colours would not be required for an image >> with only red and green colours..... :) > >Since you're talking VGA you've got a possible 64 shades each of red >and green. That works out to a possible 4096 different colors. In >practice the 256 colors available with VGA works quite well. Remember to use yellow where the red and green cross, but that takes only another 64 (193 total, 64 each red, green, and yellow and a background, probably black). Cary -- _______________ Cary Petterborg (801)582-5847 x6446 Evans & Sutherland Computer Corp. Simulation Division SLC, UT 84108 UUCP: ...!uunet!sim.es.com!cpetterb *NET: cpetterb@glacier.sim.es.com _______________ "A heart is not judged by how much you love, but by how much you are loved by others." -Wizard of Oz