[vtkusers] Are hidden lines displayed?!

[David.Pont at ForestResearch.co.nz]

Hi,
  note that lines are shaded, I guess according to the normals associated
with the cells they belong to. So depending on the camera and light angles
they can and do disappear.
perhaps that helps...
    Dave P


|---------+---------------------------->
|         |           João Gomes       |
|         |           <bassman at mail.pt>|
|         |           Sent by:         |
|         |           vtkusers-admin at vt|
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|         |           04/12/2003 09:07 |
|         |           Please respond to|
|         |           João Gomes       |
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  |       To:       vtkusers at vtk.org                                                                                               |
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  |       Subject:  [vtkusers] Are hidden lines displayed?!                                                                        |
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I'm having trouble understanding back-face culling in vtk; does it not
render hidden lines? My problem is when viewing wireframes for two spheres,
a bigger one clipped in about it's center and a smaller behind that one,
that is visible through the clipped region of the big one. I can see the
small one's wireframe, but only some lines...

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