Path: utzoo!utgpu!attcan!uunet!lll-winken!ames!nrl-cmf!ukma!gatech!udel!rochester!pt.cs.cmu.edu!andrew.cmu.edu!rg20+
From: rg20+@andrew.cmu.edu (Rick Francis Golembiewski)
Newsgroups: comp.sys.amiga.tech
Subject: Re:Want info on 3D glasses
Message-ID: <UXoM4wy00WB9Q8R0lk@andrew.cmu.edu>
Date: 16 Jan 89 05:44:28 GMT
Organization: Carnegie Mellon
Lines: 36

Well, I think that interfacing the sega 3d glasses would be possible (and
fairly easy if you know a bit about electronics).  What the glasses require
is an inpt to sync the screen's display with the proper 'eye' (the glasses
work by obscuring the R. eye when the immage for the left eye is on screen
and obscuring the L. eye when the image for the R. eye is on screen, thus
stereo vision), which should require a single bit output (I think you could
use the joystick port [I believe that there is a bit output and that it would
be fast enough to keep up with the glasses]).  The problem that I would see
is software, after all X Specs will be the standard (since it is the first for
the amiga, and it's not really all that expensive at $99), and so if there is
going to be any 3d software (is there any currently?) then it would use the
X Specs driver (I assume that it has some kind of a driver).  So if you want
to use you glasses on anything other then your own programs then you'll
have to figure out how to be compatable with X Specs.   All in all I'de
say that the extra $$$ for X-Specs is worth it because you get the software,
and you don't have to hack around with hardware, and from what I've heard
the X-Specs glasses themselves are nicely designed (ie a head band and space
for regular glasses underneath.   As for the light gun, I'm not really sure,
but I think that you could hook it up (this time requiring a 1 or 2 bit input
[ie the gameport's 2 bunttons), although I only know of 3 games (all from the
same company, who also has a light gun) that use one, so you're kind of
limited, plus their light gun may have a particular interface.  Humm...
what I'de suggest is get a logic probe (or an oscilliscope) and try seeing
what the sega gun output (I would think just a pulse when you fire), then
try to rig up a joystick adaptor cable (unless sega uses atari-type plugs,
even if they do BE SURE ITS THE SAME PINOUT! [you can find the Amiga's game
port pinout in Introduction to Amiga pg 7-16 and 7-17, I'de guess that you
would use somthing similar to the Light Prn Connections...])
Then try to write some software to test and see if it is working (see the
RKMs or other [hopefully clearer] reference).  I hope the above was of some
help...
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| Rick Golembiewski [ Pronunciation is half the Battle, spelling the other]  |
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