QVTKOpenGLWidget: Picking vtkActor2D fails
Example: HighlightPickedActor.cxx
Picking vtkActor2D fails when using QVTKOpenGLWidget. It works in the same example program when the default vtkRenderWindow is used.
Perhaps QVTKOpenGLWidget should bind its this->FBO
when picking starts.
@jcfr This affects Slicer/Qt5/VTK8.