Problem in VTK 8.2 with defaultFormat() and QVTKOpenGLWidget on Windows 10/Intel

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@SimonH Please create a new thread in the future for different issues. It makes it easily accessible to other people facing the same issue.

  1. Prefer using VTK 9 (latest version) over an older version. It would make future upgrades easier.
  2. Prefer using the QVTKOpenGLNativeWidget unless your app is doing stereo rendering.
  3. Instead of calling update on the QVTKOpenGLNativeWidget, call Render on the vtkRenderWindow associated with the widget. That is the recommended way to update a VTK scene. In this case, it will also schedule an update on the Qt widget.