RE: [info-performer] 12 bit IA and RGBA texture

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From: Dennen, Kevin M Mr. Contractor/ERC (kevin.dennen++at++us.army.mil)
Date: 01/09/2004 06:05:23


I think if you search the Performer archives, there is a solution to this
using a different method than the standard Performer texture loader. We had
this problem awhile back but I was of the impression that it was fixed in
the later releases of Performer (2.5+) However, if you are seeing this
problem in 3.0, then that must not have been the case.

KD

-----Original Message-----
From: faculaganymede [mailto:faculaganymede++at++yahoo.com]
Sent: Thursday, January 08, 2004 4:50 PM
To: SGI Performer MailList
Subject: [info-performer] 12 bit IA and RGBA texture

By the way, I am working on an Onyx 300 -
InfiniteReality3,
running IRIX 6.5.20m and Performer
3.0.

--- faculaganymede <faculaganymede++at++yahoo.com> wrote:
> Date: Thu, 8 Jan 2004 11:26:33 -0800 (PST)
> From: faculaganymede <faculaganymede++at++yahoo.com>
> Subject: 12 bit IA and RGBA texture
> To: SGI Performer MailList <info-performer++at++sgi.com>
>
> Hi all,
>
> Happy New Year! I've got a question on 12 bit IA
> and
> RGBA texture.
>
> We have two OpenFlight models, one has a 12 bit IA
> texture and the other has a 12 bit RGBA texture. I
> read the models with Perfly but the textures were
> not
> shown correctly; the 12 bit texture appears as if
> only
> the lower 8 bits of texel are being used.
>
> I've also written a small program to traverse the
> model node and modify the texture internal format to PFTEX_IA_12 and
> PFTEX_RGBA_12, respectively, but that
> did work either:
>
> pfTexture::setFormat(...PFTEX_INTERNAL_FORMAT...)
>
> Any suggestions are welcomed? Is this an OpenFlight
> Loader problem? Please advise.
>
>
> =====
> Thanks,
> faculaganymede
>
> __________________________________
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=====
Thanks,
faculaganymede

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