Angus Dorbie (dorbie++at++sgi.com)
Wed, 13 Oct 1999 12:06:00 -0700
This is a different problem. Perhaps you have some other bug or more
likely have problems with state management. The texturing problem is
only seen on IMPACT graphics. Seeing this on ONYX2 should tell you it is
not the previously mentioned problem.
>
> I was unable to find bug #758216 or which patch it corresponds to, in
There is no patch for this yet. As discussed earlier, the patch would
have been rolled into the latest Irix minor release but it didn't make
the cut.
> order to apply it
> to the Onyx2 since it seems that the problem should not exist on Onyx2.
Exactly.
>
> As mentioned, sometimes when running in the CAVE the textures of an
> object turn gray.
This could be the texture id is wrong or the entexture is off or texture
coordinates or texgen and wrong. Lots of things could cause this. Avoid
changing state like this using OpenGL in the draw callbacks. Use
performer equivalents so it can manage the state.
>
> We are currently calling pfuMakeSceneTexList and then pfuDownloadTexList
> but that doesn't solve the problem.
This was just a suggestion for rearranging texture memory layout on
IMPACT class graphics systems to hopefully avoid the bug. Unfortunately
there is no guarantee that this would work. In your case it won't.
> If there is a fix for Onyx2 I would like to find out more about it.
There is no known bug like this on ONYX2
>
> Also when will Performer 2.3 be out?
We have quarterly releases for bug fixes etc. Are there specific
features you are anticipating in the 2.3 release that you'd like to use
soon?
Cheers,Angus.
-- "Success is the ability to go from one failure to another with no loss of enthusiasm." - Winston Churchill.Performer + OpenGL examples and tutors: http://www.dorbie.com/
This archive was generated by hypermail 2.0b2 on Wed Oct 13 1999 - 12:06:08 PDT