From: Daniel F Johnston (dan.johnston++at++nrc.ca)
Date: 12/13/2000 05:09:00
> >
> > I've seen certain situations where the X Visual chosen by Performer
> > is one without a Z-buffer, in the cases I saw it was due to the
> > combination of the current display format, number of RM boards, and
> > the requested framebuffer configuration. The details are hazy..
> >
>
> At our I/ITSEC booth we tried our software on an Onyx2 IR2 (Deskside,
> so 2 RM's, right?) with Performer 2.2.9 installed, and the rendered scene
> looked as if the Z-buffer wasn't being used. Originally, this software
> ran on an Onyx RE2 (4 RM's, IRIX 6.5.6, Performer 2.2.7/IrisGL). When we
> recompiled the code with Performer 2.2.9 and OpenGL, it worked fine. We
> assumed it was an emulation issue (the Onyx2 emulating IrisGL), but maybe
> not...
>
I have 2 cents to add to this.
On my RM-deprived deskside (only one) versis the Monster with 4 RMs per
pipe....
If I selected a stereo visual with multi-sampling (for anti-aliasing) then
ran
the same code on the deskside, then there was not a visual to give stereo,
depth,
and multi-sample. So, the deskside gave me stereo and multi-sample. No
depth sorting.
If you think this looks bad in mono - try no depth sorting in stereo!
I have the same problem if I use the pfPipeWSConnectionName call to
set a remote rendering pipe. If I call it from a fully equiped ONYX then
the less-equiped remote stations (old O2s and Octanes) cannot display the
images. If I start from the O2, for example, the the same code will work
fine, ie the remote pipes/pipe-windows/screens will display the scene. Mu
current guess is that this is a related problem.
--
___|__ |
/ | \ ||\ Daniel (Dan) Johnston
/___|___\ || \ Dan.Johnston++at++nrc.ca
_____|____ || \ National Research Council of Canada, London, ON
| | | || \ Integrated Manufacturing Technologies Institute
\___| | | ||____\ Tel: (519) 430-7081 Fax: (519) 430-7090
\_o_\___|____|_|______\_ Inst: http://www.nrc.ca/imti
\ o / These opinions are my own! Not those of NRC.
\________________/ Virtual Reality:
http://www.nrc.ca/imti/vetc/home.html
More Tall Ships - Fewer Computers!
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