[vtkusers] Expert3D Graphics Card

[Jorrit Schaap]

Hi Erik,

This sounds very familiar, except that I'm using Window (2k and NT) and a
GeForce card. (the problem also appeard on a SGI320 and Viper 550).

I have ONE vtkImageData object which is input for ONE vtkTexture.
This texture is applied to MULTIPLE vtkActors, which are connected to
MULTIPLE vtkRenderers in MULTIPLE vtkRenderWindows.

I've tried tracking down the problem, but it's way down somewhere in the
code, and I couldn't realy find it.

I think that the fact that the problem does NOT appear when you use Mesa is
a very good starting point for tracking down the problem. We just have to
look for the differences between the Mesa and OpenGL implementations of the
vtkTexture, vtkRenderer and vtkRenderWindow classes.

I have posted this problem to the list before, but the bug was never
found/fixed. For me it is difficult repreodicing this fenomenon, because a
lot of my code is part of a commerial package, so I cant give you a simple
programm demonstrating this fenomenon.

I hope you have a piece of code that you can post on this list, which
reproduces the problem, so I and the Kitware folks can have a look at it,
and hopefully find the problem.

Best regards,
Jorrit



--
Jorrit Schaap
Division of Image Processing
Leiden University Medical Center
+31 71 5266206


> -----Original Message-----
> From: vtkusers-admin at public.kitware.com
> [mailto:vtkusers-admin at public.kitware.com]On Behalf Of Erik Sobel
> Sent: maandag 4 december 2000 16:31
> To: vtkusers at public.kitware.com
> Subject: [vtkusers] Expert3D Graphics Card
>
>
> Has anyone had any problems involving texture mapping and the Sun
> Expert3D
> graphics cards.
>
> I have a vtk app that has multiple pipelines, multiple render
> windows, each
> using texture mapping.  It works find under Sun's using Mesa
> Libraries and
> PC using OpenGL, but when I ported it to a Sun using OpenGL and the
> Expert3D card - it kept confusing textures from the different
> pipelines.  (Single pipeline apps seem to be ok).  Any similar
> experiences?
>
> -Erik
>
>
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