[vtk-developers] OpenGL2 / GPU texture errors

[Bill Lorensen]

On some platforms, the listed tests:
884 - vtkRenderingVolumeCxx-TestGPURayCastDataTypesMinIP (Failed)
885 - vtkRenderingVolumeCxx-TestGPURayCastDataTypesMIP (Failed)
894 - vtkRenderingVolumeCxx-TestGPURayCastNearestDataTypesMIP (Failed)
911 - vtkRenderingVolumeCxx-TestGPURayCastThreeComponentsIndependent (Failed)
913 - vtkRenderingVolumeCxx-TestGPURayCastTwoComponentsIndependent (Failed)

 generate errors like:

884: Generic Warning: In
/Users/lorensen/ProjectsGIT/VTK/Rendering/OpenGL2/vtkTextureObject.cxx,
line 727
884: Unsupported internal texture type!
884:
884: ERROR: In /Users/lorensen/ProjectsGIT/VTK/Rendering/OpenGL2/vtkTextureObject.cxx,
line 729
884: vtkTextureObject (0x7f8d4ac899a0): Unable to find suitable
internal format for T=7 NC=1 SSTI=0
884:
884: Generic Warning: In
/Users/lorensen/ProjectsGIT/VTK/Rendering/OpenGL2/vtkTextureObject.cxx,
line 727
884: Unsupported internal texture type!
884:
884: ERROR: In /Users/lorensen/ProjectsGIT/VTK/Rendering/OpenGL2/vtkTextureObject.cxx,
line 729
884: vtkTextureObject (0x7f8d4ac8dd40): Unable to find suitable
internal format for T=6 NC=1 SSTI=0
884:
884: Generic Warning: In
/Users/lorensen/ProjectsGIT/VTK/Rendering/OpenGL2/vtkTextureObject.cxx,
line 727
884: Unsupported internal texture type!
884:
884: ERROR: In /Users/lorensen/ProjectsGIT/VTK/Rendering/OpenGL2/vtkTextureObject.cxx,
line 729
884: vtkTextureObject (0x7f8d4ac97220): Unable to find suitable
internal format for T=11 NC=1 SSTI=0