How to scale vtkTensorGlyphs to get constant size glyphs with respect to the screen

With vtkGlyph3d I’m able to visualize points as spheres with constant “screensize” by using SetScaleModeToScaleByScalar and vtkDistanceToCamera to generate the distance scalars. Another point representation I want to realize is a local oriented triad on each point. Because of the orientation issue I have to use vtkTensorGlyph with tensor data for the triad directions. Everything works fine, except the scaling of the glyphs. I’d like to have a constant size of the triads with respect to the screen but until now I couldn’t find a way. Did I miss something?
Or is there another maybe slower way via data manipulation (scaling the tensor data with scalars from vtkDistanceToCamera)

Thank you