In my project, I use vtkGPUVolumeRayCastMapper to do Volume Rendering in VTK version 9.0.
when I use vtkGPUVolumeRayCastMapper->SetImageSampleDistance, and set parameter is 0.5. then i rotate the volume. It is strange that only 1/4 of the window update result image.
is it a bug of VTK 9.0? does anybody know how to fix it?