VTK Volume rendering fails
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
When trying to make a volume rendering of a VTK file I receive the following error message:
ERROR: In /home/utkarsh/Dashboards/MyTests/NightlyMaster/ParaViewSuperbuild-Release/paraview/src/paraview/VTK/Rendering/Volume/vtkGPUVolumeRayCastMapper.cxx, line 337 vtkOpenGLGPUVolumeRayCastMapper (0x4091630): scalar of type VTK_CHAR is not supported because this type is platform dependent. Use VTK_SIGNED_CHAR or VTK_UNSIGNED_CHAR instead.
This is when running paraview using virtualGL and turboVNC on a 64 bit linux workstation with an NVidia card. If I switch from GPU based to any other option (besides 'smart') it renders correctly. Also - if I run paraview over X11 - the GPU based option doesn't show me anything. And if I run paraview locally on my Mac OS X, the GPU based volume rendering also shows me nothing. However, I only get the following error when running with virtualGL.