Volker Meier (vmeier++at++vision.ee.ethz.ch)
Fri, 12 Dec 1997 16:32:23 +0000
We are trying to do the following 2-pass rendering strategy:
1) render the scene with diffuse illumination and texture enabled and
store the result in the accumulation buffer,
2) then render the same scene again with specular illumination only and
texture disabled and add the result to the accumulation buffer,
3) finally write the accumulated scene back to the frame buffer.
It seems to us, that there is no direct Performer support for this task, so
we're trying to do this directly with OpenGL calls in the draw callback.
However, all we get is lots of OpenGL error codes.
Is anybody out there who has already done multipass rendering in Performer
or has some source code for this?
Besides I'm also interested in source code examples for the convolution and
colortable extensions on a OpenGL basis.
Thanks in advance,
Volker Meier
--
_____
|_____| ?
__|_____|/_
\\ - - //
( ++at++ ++at++ )
------------------------oOOo-(_)-oOOo-------------------------------------
Volker Meier
Communications Technology Laboratory Phone: +41 -- (0)1 - 632 5008
ETH-Zentrum Fax: +41 -- (0)1 - 632 1199
CH-8092 Zurich Email: vmeier++at++vision.ee.ethz.ch
Switzerland Oooo
oooO ( )
-------------------------( )----) /-------------------------------------
\ ( (_/
\_)
=======================================================================
List Archives, FAQ, FTP: http://www.sgi.com/Technology/Performer/
Submissions: info-performer++at++sgi.com
Admin. requests: info-performer-request++at++sgi.com
This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:56:22 PDT