I am using Paraview 5.2.0 on Fedora 25 with an NVidia GT 440 graphics card. I want to do volume rendering. My data covers several orders of magnitude, so I need to use a log scale for the color map. However, when I click the checkbox for using a log scale, a warning window opens up, which contains essentially the same message that is echoed to the terminal window:
Warning: In /builddir/build/BUILD/ParaView-v5.2.0/VTK/Rendering/VolumeOpenGL2/vtkOpenGLVolumeRGBTable.h, line 143
vtkObject (0x55b80a9ab090): This OpenGL implementation does not support the required texture size of 4194304, falling back to maximum allowed, 16384.This may cause an incorrect color table mapping.
Indeed, the color mapping doesn’t work, as changes I make to the color map aren’t reflected in the rendering.
Is this a graphics driver problem? I’m using the nouveau graphics driver that comes with Fedora rather than a native nvidia driver (according to nvidia, their own driver may not actually work as well as 3rd party drivers for this card!). Since changing the driver could mess up a lot of software that I use, I’d rather not risk changing it if it is not likely to be the source of the problem.