Hi Rob, yeah currently style information is not exported by MoI into 3DS format.

3DS format is a really pretty antiquated and limited format - it comes from the old 3D Studio MS-DOS version and has several 16-bit era limits in it. Also a major problem with it is that it does not have any way to store shading vertex normals in it.

So I usually only recommend it as a kind of last resort.

It looks like archicad is possibly only focused on imports in DWG, DXF, and 3DS imports? It seems like they have gone for an almost exclusively Autodesk oriented compatibility which seems kind of strange...

Maybe I'll be able to add styles export to 3DS in MoI v3, but I kind of hate to devote much effort on 3DS since it is just not a good format really.

- Michael

Funny thing is it used to support .obj format upto (i think) version 9 then they dropped it! I hate to admit it but i think Revit from what i can see looks to be leaving archicad behind and im not sure what archicad can do as it is based on older code which clearly doesnt handle nurbs or any of the more modern modelling solutions. Our office is looking to get a seat of revit to give it a spin. Im looking forward to seing what it can do and would be looking forward to it even more if it want an autodesk product these days!