From: c.mottram (ucftchr++at++ucl.ac.uk)
Date: 02/27/2003 06:02:47
Right, I've managed to confuse myself then, I was assuming you plugged the
crystal eyes into the back of the graphics card and it synched to the frame
swapping, assuming a frame sequential sequence.
Obviously thats a bit silly then, I seem to remember hearing of people
plugging the Crystal Eyes into the serial port, then writing to the serial
port aevery frame and using that to sync the glasses ( sounds a bit dubious
to me) ?
Sorry I don't have Crystal eyes only a Sony Glasstron which has slightly
different problems, and haven't had a chance to test with Performer yet.
I'd be interested in anyones experiences, would the problems be similar?
Cheers
Chiron
At 11:44 27/02/2003 +0000, you wrote:
>Well, I've tried it and it doesn't solve anything.
>The application is correct since it works great on the Onyx.
>
>This was with a Quadro4 FX 2000. But I only had the machine for
>one day. The refresh rate seemed to be the problem and the
>only way to get something resembled to stereo was to crank the refresh
>rate up to 140 Hz.
>
>We got emitters with the PC to evaluate (and lots of other things) but
>believe it
>or not they weren't working. You had to twist the cables and so on. You
>get the picture :).
>
>Anyway, is there a way for Dan to share his hardware circuit with us?
>
>Goncalo
>
>
>"c.mottram" wrote:
>>
>> What should work....
>> Maybe I'm totally wrong as I haven't had a chance to try it yet!
>> I think you have to render both channels to a single window using separate
>> back buffers
>>
>> glDrawBuffer(GL_BACK_RIGHT);
>> glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
>> draw the right eye
>> glDrawBuffer(GL_BACK_LEFT);
>> glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
>> draw the left eye
>>
>> then call
>>
>> swapBuffers();
>>
>> I'm not sure of the exact performer syntax for this I'm afraid, But as long
>> as there is a single swapbuffers after you've drawn your left and right eyes
>> the hardware should take over and make sure that alternating left and right
>> eyes are sent down the cable at whatever refresh rate you're running at.
>> Hope this is right....
>> Cheers
>> Chiron
>>
>
>--
>Goncalo Carvalho
>Digital Design Studio - Glasgow School of Art
>House for an Art Lover - Bellahouston Park
>10 Dumbreck Road
>Glasgow G41 5BW
>United Kingdom
>
>Tel: +44 (0) 141 353 4616
>Fax: +44 (0) 141 353 4422
>Mobile: +44 (0) 7766 295867
>mailto:g.carvalho++at++gsa.ac.uk
>
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