T3D Re: Computer graphics 3D projection methods...

[Jim Crowell <crowell.20@xxxxxxx>]

>
>Date: Tue, 23 Nov 1999 07:49:38 -0000
>From: "gl@xxxxxxxx" <gl@xxxxxxxxxxxxxx>
>To: <tech-3d@xxxxxxxxxxxxxxxxx>
>Subject: T3D Fw: Computer graphics 3D projection methods...

[snip]

>
>I've now got two options - use two second-hand LCD data projectors, or two
>CRT based graphics-grade projectors, polarising each of their outputs and
>overlapping their images (although if anyone has a second-hand VREX for sale
>let me know).
>

CRTs tend to be brighter, but all the ones I've seen have the big 
disadvantage that the screen geometry is variable, i.e. they have 
controls for adjusting things like image size & pincushion 
distortion.  The better ones even have separate controls for each of 
the three primaries.  I would think this would make using two of them 
for stereo a real pain, as you'd have to match the geometries...

-Jim C.

-------------------------------------
Jim Crowell
Dept. of Psychology
Cognitive/Experimental Group
216 Lazenby Hall
Ohio State University
Columbus, OH 43210
mailto:crowell@xxxxxxxxxxxxxxxxx
mailto:crowell.20@xxxxxxx
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