As has been said previously, some thinking have gone astray here.

If you want to investigate the development of 3D application and principles, beyond the initial modelling of MoI, there is no doubt that, value for money, Carrara (6Pro especially) is the most comprehensive all round 3D app about.

This is not saying it is the best 3D app.

I repeat, the most comprehensive, all round , 3D app--value for money.

AND, it likes working with MoI file type exports!