Is it possible to have a render window with multiple viewports and have only one
vtkRenderer instance that each of the viewports views from a different perspective?
Currently, the only way I have been able to do this is to create many separate
vtkRenderers and simultaneously update them all. In PyVista, we have a way to set up many renderers under viewports of arbitrary geometry in a render window (many thanks to @marcomusy), but I’m looking for a way to view a single scene/
vtkRenderer from different perspectives to get something that looks like this:
(originally from an issue in PyVista: https://github.com/pyvista/pyvista/issues/395)