[vtkusers] face culling and edge visibility

[Miroslav Drahos]

Hi VTK folks,

I am rendering a surface with culling faces on and edge visibility on as well. When I used VTK 6.2, only the edges of faces that were visible (i.e. not culled) were shown, with VTK 7.1.0 all edges are visible, even for faces that are culled. My VTK 6.2 was compiled with rendering backend OPENGL, and 7.1.0 with OPENGL2, which is what most likely causes the difference in behavior.

It does not matter whether front or back face culling is used, the edge visibility behavior is the same.


What I am hoping to hear: Is there a way to get the "old" behavior with VTK7.1/OPENGL2?

I would like to show the edges only for the faces that are not culled away.


Thank you tons,

Miro



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