Autodesk 12812-051462-9011 User Guide 3 - Page 1750

There are six options to choose from: ■ Layer, Blocks as Node Hierarchy Linked objects on a given layer in the AutoCAD drawing that aren't in blocks are combined into a single Editable Mesh or Editable Spline object in 3ds Max. The name of each linked object is based on the AutoCAD object's layer. The linked object name has a "Layer:" prefix and is followed by the layer name. For example, all AutoCAD objects residing on the layer Walls become part of the Editable Mesh named Layer:Walls after they are linked in 3ds Max. Each block is linked separately as a hierarchy, with the block itself as the parent object and its constituent parts as child objects. The child objects of the block are combined by layer. TIP This is usually the best option for file linking. It preserves all ADT information, and generally maintains the same granularity as you would expect in AutoCAD. ■ Layer, Blocks as Node Hierarchy, Split by Material This works the same as the Layer, Blocks as Node Hierarchy option, with the following additional functionalities: The combination of non-block objects by layer, followed by material and support for multiple materials assigned to ACIS solid and polymesh geometry. ■ Non-block object layer combination: For example, take an AutoCAD file with six objects in layer A: three have a Brick material and three have a Stone material. Using this option, this file would be linked to in the form of two objects, or nodes, one containing the Brick material and the other with the Stone material. Each block is linked to separately as a hierarchy, with the block itself as the parent object and its constituent parts as child objects. The child objects of the block are combined by layer. ■ Multiple material support On import, ACIS solids and polymesh geometry can support multiple materials. For polymesh geometry, one material is supported per face. For an ACIS solid, if the solid has more than one material associated with it, a multi/sub object material is created that contains the materials used. If the solid has only one material associated with it, a standard/architectural material is assigned instead. File Link | 7005