OSPRay volume rendering of vtkImageData doesn't support blanking
When volume rendering a vtkImageData
that has cells blanked (i.e. vtkGhostType
field data attribute) the cells are still rendered when using OSPRay. This appears to be a deficiency in the OSPRay structured regular volumes API (see https://www.ospray.org/documentation.html#structured-regular-volume for information and https://github.com/ospray/ospray/issues/531 for the github issue to address the deficiency).
Adding an issue here to note the unexpected behavior and to also track OSPRay development.