Rob Jenkins (robj++at++quid)
Wed, 25 Jun 1997 20:05:46 -0700
Cheers
Rob
On Jun 25, 8:09pm, Ran Yakir wrote:
> Subject: Re: Generating textures on the fly
> On Jun 25, 5:47pm, Amaury Aubel wrote:
> >
> > I was not aware there was such a thing as pbuffers.
> > But how could I load something from the pbuffer into the TRAM? That puzzles
> me
> > most...
> >
> > I could use glXMakeCurrentReadSGI to tell openGL to use the pbuffer as a
> source
> > for all subsequent glReadPixels, glCopyPixels etc.
> > But I strongly doubt this will apply to a texture load specified as
follows:
> >
> > pfTexLoadMode(tex, PFTEX_LOAD_SOURCE, PFTEX_SOURCE_FRAMEBUFFER);
> > pfTexLoadSize(tex, WIN_X, WIN_Y);
> > pfLoadTex(movie->tex);
> >
> > Does anyone have an idea of what would happen?
> >
>
> This is exactly the way to do it. glXMakeCurrentReadSGI does apply for
> glCopyTexImage2DEXT and glCopyTexSubImage2DEXT, which are encapsulated by
> pfLoadTex of SOURCE_FRAMEBUFFER textures.
>
> Ran
>
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--
________________________________________________________________
Rob Jenkins mailto:robj++at++csd.sgi.com
Silicon Graphics, Mtn View, California, USA
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