[vtkusers] Update: White image with dri volume rendering

[l.a.h.j.d.graaf at tue.nl]

For you who are curious,
When running volSimpleLOD.tcl the same symptoms appear namely a white 
image with levels 1 and 2 of the lodProp3D. These are  raycast mappers. 
So it seems nothing to do with textures. What is correct in respect of 
the mesa textures demo's who are running correctly.
It remains a mystery to me...
By the way I use a G400Max.

Larry


***** previous mail ****************************************
Dear vtkusers,

When using vtkOpenGLVolumeTextureMapper2D to render a volume I get a 
white image with DRI enabled. Without DRI the image is correct although 
very slow.
The Mesa opengl demos do work with DRI enabled. So it looks like a 
problem with the texture mapper. 
I've read several messages about problems with texture mapping and DRI 
but none with the same problem.

Anyone some suggestions ?

I'm using vtk 4.0 (or 4.1 I don't know how to check that)
xserver-xfree86 4.1.0-16, kernel 2.4.18, debian woody, mga.o and 
mga_dri.so from Matrox.


Thanks,


Larry