Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!shadooby!ginosko!uunet!sjsca4!greg From: greg@sj.ate.slb.com (Greg Wageman) Newsgroups: comp.graphics Subject: Re: polarized film? Message-ID: <1989Oct9.200000.29188@sj.ate.slb.com> Date: 9 Oct 89 20:00:00 GMT References: <475@alias.UUCP> <65539@tut.cis.ohio-state.edu> Reply-To: greg@sj.ate.slb.com (Greg Wageman) Organization: Schlumberger ATE, San Jose, CA Lines: 22 Opinions expressed are the responsibility of the author. In article <65539@tut.cis.ohio-state.edu> william c ray writes: >Well, I may just be an idiot, and someone may have some magical way of doing >2 polarized images overlaid on the same piece of film, (and Pixars may drop >to $15 tomorrow...) But if I were to do a polarized 3d film, and I'm only a >punky undergrad, with no experience here, I would project *2* simultaneous >strips usicross polarized polarizers, one on each projector, but what >would I know? Clever optics on the camera (anamorphic lenses and combiners) and the projector (splitters and anamorphic projection lenses) would allow the left and right images to be placed on one piece of film, but side-by-side. You would still have to have external polarizers. The optics are expensive, and the image is dimmer, but it eliminates the hassle of keeping two projectors in perfect sync. Copyright 1989 Greg Wageman DOMAIN: greg@sj.ate.slb.com Schlumberger Technologies UUCP: {uunet,decwrl,amdahl}!sjsca4!greg San Jose, CA 95110-1397 BIX: gwage CIS: 74016,352 GEnie: G.WAGEMAN Permission granted for not-for-profit reproduction only.