From: cks@zycor.lgc.com (Chris St. John)
Subject: TECH: Driving NTSC displays
Date: Mon, 3 Feb 1992 20:45:29 GMT
Message-ID: <1992Feb3.204529.19920@lgc.com>
Organization: Landmark/Zycor  (Austin TX)



dstamp@watserv1.waterloo.edu (Dave Stampe-Psy+Eng) writes:

> Here's a suggestion ... use something like my REND386 package and a
> simple added crystal on a VGA card, to drive NTSC displays or LCD
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> panels DIRECTLY at a cost of $100 or so.


This, and another reference from Dave Stampe I could not find, (maybe
it was on the glove list) mention driving NTSC displays "directly". I
don't know what this means, or how to do it. Is this something a
person with a "paint by numbers" level of hardware experiece could do?
Or easily learn to do? If it is easy, could someone explain? I seem to
remember someone mentioning that it was possible to increase the
number of scan lines while doing this.

I am trying to get together a system using a Powerglove for input, on
a 386 or 486 class machine, probably using the Stampe/Roehl 3D code
for graphics. Some sort of head mounted display would be a plus.

Right now I have one (1) powerglove and zero (0) computer, and am
trying to get a cost estimate for a very low end vr system. It appears
so far that the cost is inversely proportional to one's hardware
experience. 


Thanks,

Christopher St. John
cks@zycor.lgc.com