I have prepared a simple file, hope it will be easy to test on your end.
Uploaded zipped package to mcneel support file upload with your name. Hope you can take a look.
Basically there is a Revit file with a few ‘generic’ walls with various materials assigned to them (or some of them have per-face materials). Revit file attached, just in case.
Then, importing the FBX into 3DMax, recognizes these materials. For walls with several materials assigned, the multi-material is created. And also, the material types are not ‘generic’, they are of type like “Autodesk Glass”, “Autodesk…” - so rather product specific, yet they all must have the color, transparency, texture map etc. written somewhere and accessible.
In Rhino, all the geometry imports OK, but no materials, and the objects are not even split by where the materials were assigned.
Ideal behavior would be: on Rhino import, geometry is split by material type, so if a “box” has different materials assigned to its faces, it would be split into several objects. The multi-face material in Rhino is not very well implemented and getting single objects with multi-materials in them would only add to the mess.
As for materials themselves, if there was a way to convert the Autodesk-specific types to Rhino generic types with basic color and transparency properties, it would be enough. Hope this info is there somewhere to access.
Cherry on top would be placing the objects on new layers per-material name.
Thanks for looking into this. Most of our project start with either SketchUp or Revit files. Making this type of FBX import work would be a huge improvement for Revit-Rhino imports.
PS. The YT item is not permitted for public view…