at the moment using a library for 3D models based on MCAD models (FreeCAD or STEP in general) is a good compromise for kicad to have a native and realistic/parametric 3D rendering (with VRML exported with FreeCAD) and an exact representation of your physical board in 3D PCB mechanical environment (through my kicad StepUp)
@Joan_Sparky I think that our effort in doing a 3D MCAD library for kicad is in the right direction
what I would like to see, as I asked already at developer’s list, is a 3D MCAD library composed with FreeCAD/STEP 3D parametric models and 3D VRML models aligned to the kicad model footprints…
may be @Ricardo_Crudo could ask the developers to create an official kicad repo with FreeCAD/STEP and VRML 3D models
That will help all the users that need 3D models both for realistic rendering and mechanical ECAD MCAD collaboration in finding these resources easier…
and moreover that official repo may incentive other people to collaborate and improve the lib 
Maurice