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To: glove-list@karazm.math.uh.edu
Subject: Re: trying something on for _size_
In-Reply-To: Your message of "Sun, 20 Oct 91 01:43:00 EDT."
             <9110200543.AA02928@watserv1.uwaterloo.ca> 
Date: Sun, 20 Oct 91 11:27:27 -0700
From: James Helman <jim@kaos.stanford.edu>

1) Since Andy Van Dam was associated with Stellar and PHIGS/PHIGS+
(competitors to SGI & GL), I don't think that Foley+Van
Dam+Feiner+Hughes has an IRIS bias.  A high-end bias, perhaps.

2) Your proposed clipping is a first step, but if you want to maintain
anything resembling a constant frame rate in a complex world, consider
using multiple resolution models and switching between them depending
on their apparent size and scene complexity.

3) Texture mapping is the only way to make scenes with few polys look
halfway decent.  See Sense8's software running on ActionMedia cards in
a PC or on a vanilla SPARCStation GX.  Gullichsen has done a good job,
mostly in software.  Even the IRIS Indigo does texture mapping in
software.  The poly count / texture tradeoff is worth considering.

-jim

Jim Helman					Lab:  (415) 723-9127
Stanford University				FAX:  (415) 591-8165
(jim@KAOS.stanford.edu) 			Home: (415) 593-1233

"The power of the computer is locked behind a door with no knob."
							-B. Laurel