Re: DVR with Stereo & field sequential

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Angus Dorbie (dorbie++at++sgi.com)
Tue, 01 Sep 1998 09:44:16 -0700

Thomas Miller wrote:
>
> What is the appropriate setup for DVR on a quad-buffer stereo video
> channel?
>
> Does DVR have side effects when used on a field sequential video
> output?
>

A video hardware engineer at SGI said:

> DVR should work just fine on quad-buffered stereo.
> You can't update the coeffs for DVR except once per
> buffer swap, so you won't get independent DVR per
> eye. Same hold for SFS. You won't get any worse color
> breakup from DVR than you get on a FS monitor anyway.

So, it should work. See my bumplogo demo code for an
example of DVR on two overlapping channels in Performer,
which is effectively what you have with Quadbuffer stereo
except they exist in left and right eye buffers.
Field sequential is just a single channel so it should
be just vanilla DVR.

Cheers,Angus.

-- 
"Only the mediocre are always at their best." -- Jean Giraudoux 


For advanced 3D graphics Performer + OpenGL based examples and tutors:
http://www.dorbie.com/

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