Re: [info-performer] Multipipe stereo

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From: Svend Tang Petersen (svend++at++garfield.copen.sgi.com)
Date: 05/07/2002 11:10:34


You have a few options.

Either do 'eye deocomposition', i.e. render left eye and right eye on
different pipes then readback the framebuffers using glReadPixels and draw
using glDrawPixels to left and right buffer on a composition pipe. I.e.
your final pipe outputs an actual active stereo video signal.

Or you can probably find an electronics box (I can ask people I know in
the video business) which turns two mono signals into a single stereo
signal.

Had it been the other way around, i.e. active stereo to two eye channels
out then theres is a simple trick you can do with special vfo's without
touching the application. However it doesnt work the other way around.

Svend

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On Tue, 7 May 2002, Saquib Ibrahim wrote:

> Hi,
>
> We are trying to configure our app to use pipe 0 on our IR3 for a left
> eye view and pipe 1 for a right eye view. we then need to route the
> output through a single video channel to a CRT projector and make sure
> that the images shutter for stereo viewing.
>
> We have the left and right eye views in seperate windows on seperate
> pipes but how do we now route the output from video channel :0.0 (left
> eye) and :1.0 (right eye) through video channel :1.1 and have the images
> alternate for viewing using crystal eyes shutter glasses.
>
> Thanks in advance.
>
> Saquib.
> --
>


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