3D Studio (.3ds) import/export

Import and export to the .3ds format, one of the file formats used by the Autodesk 3ds Max 3-D modeling, animation and rendering software.

Note: Rhino does not support files with the extension .max.

The specification of the .max format is not public. Since the content of the file is heavily dependent on the plug-in data used to build the scene, parsing the file outside of 3ds Max makes little sense. See CG Society 3ds Max File Formats.

Import

To open, import, insert, and attach a file as a worksession

1. From the File menu, click Open or Import.
2. In the Open dialog box, select the supported file type.
3. If the import can be configured, click Options to specify import settings.
4. Click Open, or press Enter.

Note: When Rhino opens a non-3dm model, the title bar reflects the name of the model that was opened. When the model is saved for the first time, this model name is entered as the file name.

3DS Import Options

Unweld ___ degrees

The minimum angle between mesh polygon normals where unwelding of points should occur.

Always use these settings. Do not show this dialog again.

Saves the current settings and turns off the dialog display.

To turn the message back on

Click Options in the appropriate Save, Export, Open, Import, or Insert dialog box.

Import notes

3DS files contain polygon mesh objects. Polygon mesh objects import into Rhino as polygon mesh objects. They do not convert to NURBS.
Rhino can read texture mapping coordinates from 3DS files.

Export

To save as or export a Rhino model

1. From the File menu, click Export Selected or Save As.
2. In the dialog box, the Files of type list displays the currently supported file types for export.
3. In the Files of type box, select the supported file type.
4. In the File name box, select or type a file name.
5. Specify what is to be saved.

Save small

Though clearing the render meshes makes the file smaller, it will shade and render more slowly the next time you open the file.

Save geometry only

Saves geometry objects only. No layers, materials, properties, notes, or units settings are saved.

This is similar to exporting the objects. A new file is made, but it does not become your active Rhino model.

Save Textures

Embeds external textures used by materials, environments and decals into the model.

6. If the export can be configured, click Options to specify export settings.
7. If the file type creates only mesh objects, in the Polygon Mesh Objects dialog box, specify the mesh settings.

Export note

3DStudio export uses exact object names whenever possible.

If the object name in Rhino is: RhinoObjectName, 3DS export uses the first 10 characters of the name, because MAX and 3DS only support object names up to 10 characters. The result of this example is: RhinoObjec

Rhino then checks whether or not the object name has already been used. If so, the object name is truncated to 6 characters and a 3- digit index is added, like this: RhinoO_010 The index is the last three digits from the mesh counter used in the exporter.

If no object name is defined, Rhino uses a generic name: Obj_000010. In this case, the index is the last six digits from the mesh counter.

See also

Wikipedia: .3DS


Rhinoceros 5 © 2010-2015 Robert McNeel & Associates. 17-Sep-2015