When you use specifically Keyshot for verify quality of the surface
do you export as OBJ or Nurbs format? (i believe that Keyshot can import these format)
Another thing the Moi's rendering is not sufficient for that ?
I exported fbx but I see your point exporting NURBS format, I haven't tried importing the NURBS format. That would be ideal for checking the surface!
I haven't used Moi's rendering, that's a great idea too. I need to try it out, thank you!