Re: 12bit images

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Angus Dorbie (dorbie++at++sgi.com)
Tue, 13 Jul 1999 15:52:19 -0700

Just to add a little to my reply, the issue of 12 bit support is not
really a Performer one since the framebuffer and internal format of
textures are determined by the tokens etc passed to them during creation
so it is machine dependent and required code to pass the right tokens,
Performer will just pass the information along and so these formats are
supported. Having said this some larger format tokens are listed in the
Performer manual but you may pass internal format tokens from the OpenGL
manual straight into the performer texture.

Cheers,Angus.

Dave Sullivan wrote:
>
> Hello--
>
> I was wondering if anyone had any knowledge on whether or not
> performer/sgi supports 12 bit textures.
>
> If I use an object that has a 12 bit texture applied to it, will it be
> dropped to 8 bits before processing occurs.
>
> If performer/sgi does not support 12 bit textures is there some kind of
> work around???
>
> Thanks....Dave
>
> --
> ************************************************************************
> Dave Sullivan--Visual Modeling Engineer SAIC--FT. Belvoir
> Voice: (703)-704-2722 Army Night Vision Labs
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> Email: dsulliva++at++nvl.army.mil
> ************************************************************************
>
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-- 
For years now, whenever NT has been proven to have some debilitating
weakness we've heard from MS advocates that NT would catch up, there was
just an incredible faith in this OS and Microsoft's ability to somehow
get there. With the recent results of the Linux vs NT serving benchmark
that same attitude can be seen in the Linux community. The Linux folks
aren't too worried, "Sure the single threaded IP stack was slow but
it'll be fixed in the next release.", it's eerily familiar but I have
confidence in the Linux community's ability to remedy problems and I
don't groan in pain as I used to when Microsoft made similar claims.


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

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