Re: Question about Sirius Genlock

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Angus Dorbie (dorbie++at++sgi.com)
Tue, 12 Oct 1999 12:50:24 -0700

Angus Dorbie wrote:
>
> Genlock is a video clock issue. You need a graphics card which can
> genlock or at least framelock it's video output to some external sync.
> It's a trivial addition but low on the priority of IHV's considering
> their market and the lack of even syncing swapbuffers to vertical
> retrace. There are a few cards available where genlock is supported but
> driver availability of those on Linux may thin the field to zero.

Note the lack of swap sync to vertical retrace is an end user choice
(for most gamers) rather than a lack of the feature on the cards.

Cheers,Angus.

-- 
"One of the best-known folk theorems of software engineering is that
60% to 75% of conventional software projects are either never
completed or rejected by their intended users. If that range is
anywhere near true (and I've never met a manager of any experience
who disputes it) then more projects than not are being aimed at goals
which are either (a) not realistically attainable, or (b) just plain
wrong."
                 Eric S. Raymond - The Cathedral and The Bazaar


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

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