Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!ames!sgi!thant@horus.sgi.com
From: thant@horus.sgi.com (Thant Tessman)
Newsgroups: comp.sys.sgi
Subject: Re: Stereo viewing techniques
Summary: StereoView (CrystalEyes)
Message-ID: <41437@sgi.sgi.com>
Date: 8 Sep 89 15:07:56 GMT
References: <8909071236.AA15114@snow-white.merit-tech.com>
Sender: thant@horus.sgi.com
Organization: Silicon Graphics, Inc., Mountain View, CA
Lines: 32

In article <8909071236.AA15114@snow-white.merit-tech.com>, goss@SNOW-WHITE.MERIT-TECH.COM (Mike Goss) writes:
> Regarding the continuing discussion of active vs. passive stereo viewing
> techniques, there is another point which is relevant to the choice of
> system.  It is sometimes necessary for the user of a stereo system to
> view other, non-stereo video monitors in addition to a stereo display.
> With active glasses, it is necessary to remove the glasses to view other
> video sources;  the glasses cause severe flicker otherwise.

StereoView (CrystalEyes) have a button on the side that turns them clear,
so not only is there no flicker, but there is very little light being cut
out, just like wearing clear glasses.  This is even better than passive
glasses which always cut out at least half the light.


> Also, if multiple stereo monitors are in use, active glasses require that
> all video monitors have synchronized refresh cycles in order to be viewed
> simultaneously; passive glasses do not have this requirement.

You are right about viewing them simultaneously, but the StereoView 
glasses sync to the monitor you are facing, so it is possible to look 
back and forth between more than one monitor and always be synced to the 
one you are looking at.

thant



--
-----------------------------------------------------------------------------
There's a pattern there to see, and the point will soon be clear to me.
                                                           -Stewart Copeland
-----------------------------------------------------------------------------