[vtkusers] adding VTK_TRIANGLE_STRIP cells to vtkUnstructuredGrid, when I zoom the view, the triangles at some view distant will disapear.why?

[扬帆]

Hi,everyone.
     this problem has bothered me a lot.I don't know if this is related to anti-aliasing issues.or other problems ?please give some advice.
    Thanks a lot.
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