From: cmasgras@postbox.acs.ohio-state.edu (Cris Masgras)
Subject: TECH: CrystalEYES PC question
Date: Fri, 8 Sep 1995 00:16:11 GMT
Message-ID: <cmasgras.67.304F8B4A@postbox.acs.ohio-state.edu>
Organization: The Ohio State University


From cmasgras@postbox.acs.ohio-state.edu (Cris Masgras)

I'm looking into buying CrystalEYES shutter glasses for the IBM PC
compatible and I'm unsure of a couple of things:

- how do I synchronize the image I dysplay on the CRT with which eye is 
viewing ( I guess a similar question is how do I know when a Vertical Blank 
Interrrupt occurs -- which I believe is the trigger for the shutter glasses)? 

- do the shutter glasses just alternate left-right-left-... eye ( just being 
toggled ) or does the PC Emitter  send a signal specifying which shutter ( 
left or right ) should be on ?

basically I am trying to develop a stereogram and motion ( perceived
in 3D space ) part of a visual testing system.

thanks
cpm