Steve Baker (sbaker++at++link.com)
Wed, 17 Dec 1997 13:35:52 -0600 (CST)
> Angus wrote:
> >
> > No, Performer as you currently know it will not be available on NT.
> >
> > OpenGL++ is under development and will offer a cross platform MP
> > scene graph based graphics API.
> >
> > Cheers,Angus.
>
> My question is: Will (or how well will) OpenGL++ handle multi-pipe
> rendering? I liked Inventor, but ridiculous work-arounds were
> required to do multi-pipe rendering because of how things were
> handled internally -- something that was never fixed.
SGI are saying (as I recall from many earlier emails) that Performer,
Inventor and Optimiser would all be re-implemented on top of OpenGL++
Since Performer has always provided comprehensive support for multi-pipe
rendering, and if OpenGL++ is to support Performer - then it follows that
OpenGL++ would have to cope well with multi-pipe.
> The problem with Inventor was that the scene-graph database was
> used by the renderer to store state information about the rendering
> process -- a major problem when more than one process is rendering
> from the same scene-graph at the same time, out of shared memory.
Yep - that would be bad. However, I get the impression that OpenGL++
follows on from Cosmo-3D and that took on a lot of the lessons learned
from Performer - and Performer has all those issues resolved.
So, there is room for optimism.
Steve Baker 817-619-8776 (Vox/Vox-Mail)
Hughes Training Inc. 817-619-4028 (Fax)
2200 Arlington Downs Road SBaker++at++link.com (eMail)
Arlington, Texas. TX 76005-6171 SJBaker1++at++airmail.net (Personal eMail)
http://www.hti.com http://web2.airmail.net/sjbaker1 (personal)
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