3-D glasses on Indy
Riccardo Camiciottoli (camiciot++at++aguirre)
Sat, 3 Dec 1994 10:28:36 +0100
>> I'm an italian engineering student and I'm trying to install and use the 3-D SEGA glasses on Silicon Graphics
>> Indy machine. In back side of Indy there is a glasses reserved output.
>>
>> 1) Is there someone that can sending me the scheme of the signals from this output port?
>>
>> 2) How can I control the double buffering mode in a Performer program to achieve the 3-D
>> effect with glasses?
>>
>
> 1 +12V +12 Volts DC Output
> 2 GND Ground -
> 3 Stereo Stereo Sync Output
>
>The stereo sync is TTL and is high when the left eye is on screen.
>
>The best choice for stereo on Indy is using the XSGI stereo extensions
>I posted simple sample code for on this group a couple weeks ago. This
>works on IRIX 5.2 or later. You would have to figure out how to
>incorporate the simple sample I sent into Performer. Performer has
>traditionally only used stereo-in-a-window which only works on
>RealityEngine and VTX and not Indy.
Thanks for your reply.
I've three question about it, yet.
Can you send me the exact layout of the pins 1, 2 and 3 of the
Indy's output port?
You said stereo sync is TTL and is high when the left eye is on
screen; well, that means the output is a square wave, high (~3.5 Volts)
when the left eye is on screen, low (~0.2 Volts) otherwise, and I must
construct a circuit that generates another square wave with a T/2 delay
for the right eye. Is it right or wrong?
Would you mind sending me a copy of the article you posted weeks ago?
Thanks in advance.
Riccardo Camiciottoli
Universita' di Firenze
Facolta' di Ingegneria
Dipartimento di Sistemi e Informatica.
email: camiciot++at++aguirre.ing.unifi.it
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