Hi bilico - so there’s one object, a polysurface in Rhino and in max it is multiple objects? Can you verify that it is one object and not, say, a group, in Rhino?
I’m not at my computer right now, bit if memory serves me right, the 3ds-format has a build in limitation in terms of poly count. Maybe try obj instead of 3ds?
Try meshing the object yourself in Rhino instead of meshing on export (either Mesh or ExtractRenderMesh command). Then run _Weld 180 and export the result as 3DS or OBJ (OBJ has no limit for #of faces). It imports into 3DMax and when converted to EditablePoly looks like it is a single element. Does it help ?
I have no experience with substance designer, but there a few things you can try:
Use some of the built-in mapping in Rhino before exporting the mesh to 3ds or obj - the mesh will remember its mapping coordinates on export (use predefined box, spherical, planar, unwrapuv etc.)
or you can do the same thing in MAX before using Substance Designer?
In general Rhino surfaces and solids by default have their render mesh use the surface UV parameters as mapping coordinates, that’s why without assigning custom mapping you will see long, skinny coordinates on fillets of your shape etc.
Take a look at Rhino Help or Max Help for mapping details.
when we convert a rhino object into meshes, the meshes become disorganized
is there a way to convert the object made in rhino to a more organized mesh?
how do meshes created in max?
in order to be able to map and texturize with ease at max?