I found something funny : when using the wxVTKRenderWindowIntreractor Class available at:
http://wxvtk.sourceforge.net/ the rendering is perfect. So the issue might come from VTK after all (and most probably the vtkRenderWindowInteractor Class) -- fglrx-driver behaves strange in 8.32.5, works fine in 8.28.8 https://launchpad.net/bugs/76383 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs