How to measure 3D rotation smoothness / speed of a vtk 9.3.0 image embedded in a qt 6 application with tools like FRAPS.
Currently tools like FRAPS and nvidea control panel are working only on laptops for fps display but they are not displaying / overlaying fps on windows 11 desktop servers.
Refer to https://examples.vtk.org/site/Cxx/Utilities/FrameRate/ for an example of how to query the interaction frame rate in a vtk application. To display the frame rate directly in the view, add a text actor to the viewport and update its input string within the frame rate callback.