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CAD tip CAD tip # 7319:

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3ds Max import - AutoCAD Drawing vs. Legacy AutoCAD - the differences.

A - answer 3ds Max 2011 offers two types of import of DWG files (M > Import > Import > Formats) - the new "AutoCAD Drawing" and the old "Legacy AutoCAD". The new type is preferred in most situations. What are the differences?

Supported only in the new "AutoCAD Drawing" mode:

  • Support for AutoCAD, AutoCAD Architecture and Revit Sun and Shadows information.
  • Support for AutoCAD Architecture mapped UV textures on objects.
  • Support of multiple materials on ACIS solids in files from Revit Architecture 2008 and AutoCAD Architecture (ADT) 2007 and later.
  • Support for all ObjectARX custom objects (ignored by the Legacy importer).
  • Specialized support for AutoCAD Architecture and Revit objects, including style/component grouping and naming, style associations for material and modifier propagation, and material translation and assignment.
  • Specialized support for AEC Civil contour objects (translated into a Terrain object).
  • Support for Raster objects.
  • Support for axonometric named views (translated into cameras with the Orthogonal toggle turned on).
  • Support for attached drawing xrefs.
  • Support for DXF files.
  • Rescaling to imported drawings created with units that differ from the 3ds Max system units.
  • Ability to skip frozen layers, or to select specific layers to import (or exclude) from a list. Maintaining layer assignments from the drawing file.
  • Ability to set shape rendering parameters before importing to 3ds Max.

Supported only in the old "Legacy DWG Import" mode:

  • AutoCAD primitives translated into 3ds Max primitives.
  • Support for Text (not MText).
  • Imported blocks are represented as groups.
So it is up to you to decide which type of DWG import is required for your scenarios.
100% *  CAD 
23.4.2010    15401×  
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applies to: 3ds Max 2011 · DWG ·

See also:
Tip 11726:Loading 3D models in the OBJ file format to AutoCAD.
Tip 11337:Convert 3D PDF files back to CAD models.
Tip 11295:Iterative Move, Scale and Rotate - till boundary touch.
Tip 10903:How to import an Illustrator file (.AI) into AutoCAD (.DWG)?
Tip 10884:Simple detection of a 2D/3D DWG or an empty DWG.

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