Re: Performer 2.0 on InfiniteReality
Sharon Clay (src++at++rose)
Thu, 15 Feb 1996 11:38:41 -0800
+>---- On Feb 15, 10:03am, John Rohlf wrote:
> Subject: Re: Performer 2.0 on InfiniteReality
->
->>
->> Question for the pfDeveloppers:
->>
->> Has Performer 2.0 been modified to take full advantage of the new
->> InfiniteReality OpenGL-based Hardware?
->>
->> We're looking into replacing 2 RealityEngine2 with 2 InfiniteReality since we
->> need the increased performance of the new graphics card right now. However,
->> that kind of change has a side effect since the RE2 is IrisGL-based while the
->> InfiniteReality is OpenGL-based.
->>
->> Specifically, Performer 2.0 comes with a sample program (shadows.C) that
->> compiles and works only with IrisGL. Does it mean that shadows are not
->> available with OpenGL and the InfiniteReality? I can't believe that. There must
->> be a fix.
->
-> Performer 2.0 does not yet take full advantage of the new
-> InfiniteReality OpenGL-based Hardware since some OpenGL extensions
-> which access the hardware have not yet been implemented.
-> The shadow extension has not been implemented yet and even if it
-> makes it for the InfiniteReality release, 2.0 will not be able
-> to use it.
I'll just add a bit more general info here.
Performer 2.0 does run well on InfiniteReality but did not expose
new any extensions that were not usable on any currently shipping machine.
We will have an InfiniteReality-specific release based on 2.0 that will make use of the
new features of IR. However, even folks with Performer2.0
will be able to run on InfiniteReality (which btw already has some IR specific
checks and hooks in it) and will, as always, be able to make
direct calls to OpenGL through Performer to use additional features that
Performer 2.0 does not cover.
src.
--
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Sharon Rose Clay (Fischler) - Silicon Graphics, Advanced Systems Dev.
src++at++sgi.com (415) 933 - 1002 FAX: (415) 965 - 2658 MS 8U-590
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