[vtkusers] Coloring Voxels

[Juan José Aja Fernández]

Hi, everyone:

I believe I have a simple question:

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
correct/reasonable approach?

if not, how can this be accomplished?

Cheers,

Juan
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