From: jcs@crash.cts.com (John Schultz)
Subject: Re: Plea for help
Date: 20 Jan 91 08:51:23 GMT
Message-ID: <7081@crash.cts.com>
Organization: Crash TimeSharing, El Cajon, CA



In <1991Jan18.183937.14561@lavaca.uh.edu> jet@karazm.math.uh.edu ("J. Eric Towns
end") writes:

>In article <iwL3u2w163w@tz.wimsey.bc.ca> bigdaved@tz.wimsey.bc.ca (Big Dave Dio
d
>e) writes:
>>I represent a team of undergrad engineering physicists who are currently at
>>work building a cheap demonstration of artificial reality.  We plan to use
>>a fast 80386 based micro running MS-DOS, a Mattel Powerglove, and a pair of
>>Sega LC shutter glasses.  Unfortunately, we're having a difficult time getting
>>parts and information, and any help anyone out there can provide would be
>>much appreciated.

>Why not get an Amiga with a 50Mhz 68030 and a set of Haitex LCD glasses?
>They work together out of the box?  The PowerGlove is going to be a hack
>no matter what CPU you use...  And the Amiga has a hardware blitter
>that lets you run pre-computed screens at 30-60fps..

  Virtual reality, by definition (virtual) doesn't lend itself very well
to precomputed scenes. Further, a 25Mhz 68030 is 2-3 times faster than the
Amiga's blitter for filling polygons. The blitter can still be used to clear
the screen, though. A fast 80386 will be much cheaper and more marketable then
a 50 Mhz Amiga. The best way to go would be i486/i860 for price/performance
max, or i386 or i486 with a TMS34020.

>I don't understand this idea of using machines w/o hardware graphics
>support for graphics...

  Well, as stated, if the graphics hardware is slower than the processor,
why use the graphics hardware?


  John

PS: I'm a Motorola fan, but the standard Amiga graphics hardware is
way behind the times. There are TMS34020 boards coming soon to remedy this,
however...


