[vtkusers] defining color for backfaces of a polygon mesh in vtk.

[Rishabh Kapoor]

hi all,
 I have a problem. How can I define different colors to backfaces of a
polygon. I have defined a ambient, diffuse color of a polygon mesh. But I
want to assign a different color to backfaces of this polygon mesh.
When backfaces culling is switched on then the backfaces are not rendered
when the camera faces the back of the polygon mesh. Please tell me how can I
solve this problem of mine.
Regards,
 Rishabh Kapoor
-- 
Rishabh Kapoor
Medical Physics Consultant
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