Autodesk 12812-051462-9011 User Guide 3 - Page 1930

Naming Conflicts Material IDs are unique within one DWG file. However, the same material ID may appear in two different files, such as Basic Wall: Generic - 12" Masonry. If a naming conflict arises when two scenes are merged, the program applies the last loaded material used in the Multi/Sub object material. For example, if you import two files, file1.dwg and file2.dwg, and they both contain a material named Brick; the Brick material used is the one from the second file (file2.dwg). Or, if file1.dwg contains a material named Brick that is internally stored as material ID 222 and file2.dwg contains a different material stored as ID 222, the material used in the scene when they are imported is file2.dwg's material. If two solids share the same material ID, they will share the same Multi/Sub-Object material. Non-AutoCAD Materials 3ds Max does not import non-AutoCAD material IDs. The only non-AutoCAD Architecture IDs it preserves are Color IDs. ACIS Solids DWG ACIS solids import as solid objects in 3ds Max. You cannot separate faces of an ACIS solid object unless you apply the Edit Poly on page 1363 or Edit Mesh on page 1353 modifier. TIP You can access the material ID value assigned to this face with the Edit Poly modifier. ACIS Solids and Materials ACIS solid materials display in the Material Editor, along with any other imported materials. When you apply a bitmap material to an ACIS solid, it is applied to every side of the object. For example, a brick bitmap material that you apply to a wall object appears on both sides and all edges of the wall. If you want to apply a material to each face ID, you can use a Multi/Sub Object material so you can assign sub-materials to each face ID. When you import ACIS solids into 3ds Max, procedural textures are not imported, only materials For example, a brick wall in Revit may have mortar AutoCAD (DWG) Files | 7185