Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!snorkelwacker!bloom-beacon!eru!luth!sunic!tut!kaakkuri!kp74615
From: kp74615@kaakkuri.tut.fi (Karri Tapani Palovuori)
Newsgroups: comp.sys.amiga.tech
Subject: Re: X-specs Control
Message-ID: <11949@etana.tut.fi>
Date: 25 Mar 90 09:20:41 GMT
References: <27863@cup.portal.com> <2343@ucqais.uc.edu>
Sender: News@tut.fi
Reply-To: kp74615@kaakkuri.tut.fi (Karri Tapani Palovuori)
Organization: Tampere University of Technology, Finland
Lines: 17

In article <27863@cup.portal.com>, Peter_Warren_Lee@cup.portal.com writes:
> Is there anyone out there that can tell me of a way to open and close
> the shutters on the X-specs 3D glasses from Amigabasic?

The bit for joystick fire button is the shutter control. (Was it bit 6 or
bit 7 in $BFE001). First you set define this bit (pin) OUTPUT by corresponding
control bit. If I remember correctly, a 1 means right lens open, left shut.
And quess what a 0 means ;-).

Because I don't have the glasses (only tried the programs with SEGA-glasses
and a self-built interface) I'm not sure if the X-specs interface needs updating
every frame or so. It's possible that it turns both lenses open if the signal
stays same for some time.

Karri

P.S. The effect is really great, btw.