Hi Pilou, both of those are good examples of data that is not recommended to import into MoI because it is made up of a large number of little tiny flat facets.

That type of data should be opened in a polygon mesh editing program, not MoI. NURBS models like MoI is designed to work with do not function well with that type of geometry, you need to have a smaller number of faces that are made up of curved surfaces and not a dense amount of little flat planes.

If it was a good quality sub-d model that had edge loops flows (unlike your example) then you could import it into MoI with the new subd converter.

- Michael