From: Anders Follin (AndersF++at++sgi.com)
Date: 06/25/2000 09:23:22
Another approach is to use the stencile buffer to mask out certain parts of
the scene (i.e the mirror surface) and render multiple passes. I believe
there's some examples in the OGL tutorials.
-af
Anders Follin M.Sc., Lic.Eng.
Principal Analyst
Graphics Technologies
SGI E-mail andersf++at++gothenburg.sgi.com
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-----Original Message-----
From: Svend Tang-Petersen [mailto:svend++at++copen.sgi.com]
Sent: den 23 juni 2000 5:58
To: Jason Rappleye
Cc: dimi christop; info-performer++at++sgi.com
Subject: Re: Mirror Effect
Or check www.dorbie.com for a similar example.
Jason Rappleye wrote:
>
> Hi,
>
> One of our local SEs was talking to me about the smoke & mirrors demo that
> we have on our O2s. It does what appear to be real-time reflections. He
> said the SGI employee wrote a paper on how this was done, but he never
> managed to get me a copy of it.
>
> SGI folks: is this available somewhere? Or can we get the author to
> explain it?
>
> Thanks,
>
> Jason
>
> On Fri, 23 Jun 2000, dimi christop wrote:
>
> >
> > Hi,
> > I would like to develop a mirroring effect.
> > I was thinking of capturing the image buffer of the pfChanel, and apply
> > this image as
> > a texture at real time. This would happen every frame.
> > I started out by applying a pfTexture object on a quad, and then use
> > pfTexture::subload to capture the screen buffer and
> > change the texture on the object at once but it did not work.
> > Does anyone know a different way of doing this.
> >
> > Thanks in advance
> > Dimi
> > ________________________________________________________________________
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>
> --
> Jason Rappleye
> Canisius College, Computer Science & Math major
> email: rappleyj++at++canisius.edu rappleye++at++acm.org
> "The woods are lovely, dark and deep, But I have promises to keep,
> And lines to code before I sleep, And lines to code before I sleep"
>
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--Regards Svend
******************************************************************* Svend Tang-Petersen, MSc Email: svend++at++sgi.com AGD, Europe Silicon Graphics Fax: (+45) 46579440 Hovedgaden 451 Phone: (+45) 46555660 2640 Hedehusene VNET: 540-0422 Denmark http://reality.sgi.com/svend_copen ******************************************************************* ----------------------------------------------------------------------- List Archives, FAQ, FTP: http://www.sgi.com/software/performer/ Submissions: info-performer++at++sgi.com Admin. requests: info-performer-request++at++sgi.com
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