From: heifetz!rphroy!rcs.cs.gmr.com!smith1@uunet.UU.NET (Randall C. Smith)
Subject: TECH: C code for CrystalEyesVR/Deering system
Date: 19 Jan 93 21:02:08 GMT
Organization: GM Reseach Laboratories



Michael Deering of Sun, in "High Resolution Virtual Reality" 
(Computer Graphics, v26, 1992) describes a system that achieves
good registration between virtual and physical worlds.  It uses
LCD shutter glasses (CrystalEyesVR from Stereographics) to view
a stereo image, rendered (by a Sun workstation) wrt to eye positions
measured by a headtracker.  The headtracking hardware is from
Logitech, and coupled into the CrystalEyesVR package.

We have the same equipment, but will use an SGI Reality Engine as
renderer.  Has anyone developed C code for CrystalEyesVR that we
could have for research purposes?  Especially, does anyone have code that
duplicates Mr. Deering's calibrations? 

Thought I'd send this in parallel while trying to contact Mr. Deering
himself; but I'd be surprised if a number of duplicate systems haven't
already been written, since the the stereo effect and physical world to
virtual world registration are quite striking.  I'd be interested in hearing
from anyone else who has duplicated or embellished this approach.
Thanks,
--Randy