I need to use Volume Rendering on an unstructured grid made out of
voxels, and I want to color them and set their transparency (by doing
something like vtkVoxel->SetOpaque(1, 0, 1, 0.3)).
The problem is that I have a very large number of voxels (> 25 000 )
so using a ColorTransferFunction is out of the question (if there is a
way to use a CTF to color each voxel individually, please let me know).
I guess I need to assign an actor to each element but I have no clue as
to which data mapper recieves a vtkVoxel as input. Is this the