Angus Dorbie (dorbie++at++sgi.com)
Mon, 18 Oct 1999 11:54:28 -0700
The gang swap can be a simple semaphore in the draw code.
On clustered machines you have a different class of problem.
Cheers,ANgus.
root wrote:
>
> > Although this might be an off-Performer topic, I believe someone in this ML
> > can help me...
> >
> > One of our customers is using Onyx/RE2-3pipes system and they use Performer
> > as its API.
> > Currently, they are planning to use OpenGL directly, but manpage says...
> >
> > man glXSwapBuffers
> > MACHINE DEPENDENCIES
> > Gang swap (multipipe synchronized buffer swaps) is not supported on
> > RealityEngine, RealityEngine2, and VTX systems. This will be fixed in a
> > future release.
> >
> > The combination of Performer/GangSwap(SwapReady) works fine now.
> >
> > Are there any proper way to use GangSwap on OpenGL/RE2 like Performer ?
> > or
> > How does Performer realize it properly ?
>
> Off the top of my head I recall that the RE2 actually uses IrisGL and not OpenGL.
> There is a wrapper library that comes with IRIX but Performer uses the native
> IrisGL libraries which would probably account for this discrepency.
>
> I might of course be wrong here :-) If so someone is bound to correct me - I have
> been using IR's which are native OpenGL
>
> Regards
>
> David
>
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-- "Success is the ability to go from one failure to another with no loss of enthusiasm." - Winston Churchill.Performer + OpenGL examples and tutors: http://www.dorbie.com/
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