QVTKRenderWindowInteractor incorrect rendering
I tried to make a small viewer with UI. Using python3.7, vtk and PySide2 (Qt5). AFAIK a vtkRenderWindowInteractor() cannot be put inserted as a Qt5 widget into a Qt5 layout. To do that QVTKRenderWindowInteractor() is needed.
But I noted the rendering is not displaying all surfaces correctly with QVTKRenderWindowInteractor, as shown in the following images. (It's a simple cone vtk-object) top image is vtkRender with an ideal rendering. The other two images are QVTKRender with and without the option to use a QGLwidget instead of a Qwidget object.
Not sure what I could do to fix this.