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- Newsgroups: comp.graphics.visualization
- Path: sparky!uunet!math.fu-berlin.de!uniol!Peter.Gorny
- From: Peter.Gorny@arbi.informatik.uni-oldenburg.de (Peter Gorny)
- Subject: Re: Changing controlling stereo real estate (possible?)
- Organization: University of Oldenburg, Germany
- Date: Sun, 30 Aug 1992 15:48:25 GMT
- Message-ID: <1992Aug30.155129.20341@arbi.Informatik.Uni-Oldenburg.DE>
- References: <2959@sparky.mdavcr.mda.ca>
- Sender: news@arbi.Informatik.Uni-Oldenburg.DE
- Lines: 36
-
- sw@mdavcr.mda.ca (Scott Wood) writes:
-
- >In a previous posting (which, unfortunately, expired before I got around
- >to replying to), Howard Stroyan wrote:
-
- >> An alternate approach is to not half the effective frame resolution but to
- >> instead half the effective video bandwidth. That is, have left and right
- >> framebuffer of full resolution (say 1280x1024) and display them in
- >> alternation (either interlaced or complete frames). This would produce
- >> an effective frame rate of 30 fps on a typical 60Hz display. The
- >> benefit of this approach is that a high screen res and a 1:1 aspect ratio
- >> are maintained. The disadvantage is ... well it reminds me of an other
- >> old movie "My Friend Flicker" :-). I remember seening this setup on
- >> mac in the 89' SIGGRAPH Textronics booth. I did have stereo_in_a_window
- >> but it strobed terribly.
-
- >We did this in our stereo X Windows implementation. If done properly,
- >the flicker is not very bad. We felt that there was no contest in
- >deciding between slightly more flicker and regaining the full frame
- >resolution. Although, since we were able to get a patent on the
- >technique, maybe we did it differently than it has been done before.
-
- Today you can buy 120 Hz displays and split that to 60 Hz -- no
- flicker!
-
- Peter Gorny
-
-
- . ________________________________________________________
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