Could any one help me to solve this issue? the attached file is polyData with quadratic quad elements. when i display surface grid with version 9.0, everything is wonderful. but for version 9.1, some edges visibility are not correct. please see below pictures and file for details.
this is still a problem in vtk master version. But I found out the key point is VTK_QUADRIC_EDGE in the test polyData. when i remove all quadric lines in the test PolyData, everything seems great! Could you help to solve this problem?