Can anyone shed some light on a successful method of mapping 3D DWG rendering materials to RAC09 // Mental Ray materials.
Manufacturer's content is still much more common in the DWG format, but importing it into Revit families, and placing in a project to be rendered does not yield good results.
Many times the DWG file has only two layers (0 and ASHADE), so I'm at a loss...
TIA
Graham