Path: utzoo!mnetor!uunet!husc6!bbn!rochester!rutgers!mtune!whuts!homxb!antique!cjp
From: cjp@antique.UUCP (Charles Poirier)
Newsgroups: comp.sys.amiga
Subject: Re: 3D (stereo vision) project?
Message-ID: <2046@antique.UUCP>
Date: 27 Jan 88 19:25:05 GMT
References: <645@esunix.UUCP> <5064@well.UUCP> <4499@ecsvax.UUCP>
Reply-To: cjp@vax135.UUCP (Charles Poirier)
Organization: AT&T Bell Labs, Holmdel, NJ
Lines: 25
Keywords: Cheap Sega glasses
Summary: 2 x 3D? Distortion problem

In article <4499@ecsvax.UUCP> ruslan@ecsvax.UUCP (Robin C. LaPasha) writes:
>The stereo imaging projects by Leo and others sound great.
>One question: will you be able to use two or more sets of
>(Sega or other brand) glasses simultaneously?

I experimented with the 3D-breakout game that uses red-blue filters.
The same effect would occur with Sega-style full color glasses, it
being a geometric effect.  The basic problem is that when you move your
head to the right, the back of the perceived scene slews over to the
left.  To get two people side by side, they'd each have to put up with
a rather distorted view.  Or perhaps one person slouches down and the
other looks over the first's shoulder, since there is no equivalent
vertical distortion.  Or I guess you could use two monitors.

Perhaps one could get side-by-side support for 3D by using 4
interleaved views instead of 2.  Each pair of glasses would be synched
to one stereo pair, and would blank out entirely for the other person's
view.  You could then tell the program the off-center angle for each
viewer, and it could generate views with no perceived distortion.  This
might cause a lot of flicker though.

-- 
	Charles Poirier   (decvax,ihnp4,attmail)!vax135!cjp

   "Docking complete...       Docking complete...       Docking complete..."