RE: Performer 2.5 query

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From: Tom Flynn (flynnt++at++engr.sgi.com)
Date: 01/24/2002 13:04:41


On Thu, 24 Jan 2002, Jason Daly wrote:

> On Thu, 24 Jan 2002, Tomlinson, Gordon wrote:
>
> > HI
> >
> > Its an SGI - PC Problem, the hardware uses different gamma values.
> >
> > If you take SGI as having a gamma of 1.o then PC's gamma is about 1.5-7

actually, you'll notice the SGI is probably set at 1.7 (type: gamma) and
the PC is set to 1.0 (type: xgamma). You can change the setting on the PC
by either using xgamma (man xgamma) or adding the setting to your
XF86Config (man XF86Config).

> I've notice the gamma discrepancy as well, but the problems we were having
> went way beyond that. We had a model of a person wearing a yellow hazardous
> materials suit with a black helmet. On the SGIs it looked correct, on the
> PC the suit was black and the helmet was lavender. Another example is
> an orange traffic cone that was being rendered completely black.
>
> We worked around the problem by turning off Gouraud shading in MultiGen.

Those problems sound like bugs in the .flt loader.

-tom

--
"Mongooses are famous for their snake-fighting ability, and are
 almost always victorious because of their speed, agility, and timing
 and also because of their thick coat."


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