[vtk-developers] Bug in VolumeMappers?

[Prabhu Ramachandran]

Hi,

Attached is a Python script (v.py) and a gzipped data file that
demonstrates a funny problem that two MayaVi users encountered with
VTK's volume mappers.

The data file is a structured points dataset.  There is one large
region of constant color and in this region there are spurious black
regions.  This occurs with both the RayCast and Texture mappers.

If you look at a cut-plane of the data, it looks just fine.  Only the
volume renderer seems to produce wierd artifacts.

The Python script should run with VTK-Python (no dependencies are
required including Tk).

I've submitted the item in the bug tracker (#1180) also.

I'd appreciate any clarifications.  Thanks!

regards,
prabhu

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