[vtkusers] Too many cells

[Matteo]

Hi
I am rendering a scene that is something like an histogram, but in 3D.
The problem is that the rotation/interaction is slow.
At the moment it is written using vtkPoints, vtkQuad(many), 
vtkUnstructuredGrid, vtkDatasetMapper, vtkActor.

The vtkPoints list are the shorter as possible (I avoided doubled values 
when possible), but they are a lot because the vtkQuad are a big number 
(like 100 000).

Is there any way to perform the way this data are managed internally to 
speed up the rendering?
Is there a class that can help on this?

Thanks
Matteo



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