Glitches when passing from QVTKWidget to QVTKOpenGLWidget

Development
6

Thank you very much @cory.quammen

With the same code (weather stations Qt example from vtkMap) :

With VTK 8.0.0.rc1-54-ga9b1325 (the one used in ParaView 5.4.1), there’s no glitches :

wsmap_vtk_8_0_0

With VTK 8.2.0 (I initialized the QSurface properly)
wsmap_vtk_8_2_0

With the latest VTK from master (using QVTKOpenGLStereoWidget and QVTKRenderWindowAdapter::defaultFormat to initialize the QSurfaceFormat’s default format)

I managed to have this result by playing with the camera (possible with 8.2.0 too)
wsmap_vtk_master

but this is the first result :
wsmap_vtk_master_2

Otherwise, without using Qt (X11 window ?), there’s no glitches with all the versions.