COB to 3DM Conversion
Learn how to change COB to 3DM using our powerful converter in just a few steps:
Install Autoconverter
Download and install Autoconverter on your system. Launch the software to convert COB files to 3DM format.
Import COB File
Click Open... to load your COB (.cob, .scn) file, or drag and drop it into the application window.
Export to 3DM Format
Use Save As... to export your file to the 3DM file format (.3dm).
Still finding COB to 3DM conversion challenging? These trusted resources make COB files conversion simple:
- Convert SketchUp SKP Models with Component Instances to STEP
- Convert Mesh to NURBS for Rhino 3D (3DM) with Autoshaper
- Convert SKP Files for Free with This SKP File Converter
- Convert STEP to 3DM Rhino with NURBS Surfaces
Caligari TrueSpace Object File
A proprietary 3D file type created by Caligari Corporation for their TrueSpace modeling and animation software. This format was designed to store complete 3D scenes including geometry, materials, and animation data from TrueSpace projects. While the software is no longer actively developed, COb files remain important for working with legacy 3D assets and converting older TrueSpace creations to modern formats.
Key Features of COB
- Complete 3D Scene Storage: COB files save entire 3D scenes including models, lights, and cameras in a single file.
- COB File Formats: There are two types of COB files:
- ASCII - Human-readable for manual edits and debugging in any text editor.
- Binary - Smaller file sizes and faster loading for complex 3D scenes.
- Material Support: The COB format stores color, texture, and basic material properties for 3D objects.
- NURBS and Mesh Data: Supports both NURBS surfaces and polygonal mesh geometry types.
COB File Conversion
Autoconverter and Automesher Application support importing COB files (TrueSpace format) and converting them to other 3D formats like STEP, SAT, FBX, SKP, and OBJ. The conversion preserves key elements including materials, textures, and UV coordinates from the original COB file. This is made possible through our use of the Open Asset Import Library, which ensures reliable cross-platform conversions. Note that only import is supported - you cannot export back to COB format.
Rhinoceros 3D (3DM) File Format
The 3DM file format is the native format for Rhinoceros 3D (Rhino), a leading NURBS-based 3D modeling software used across industries like architecture, engineering, and industrial design. 3DM files accurately store mathematical representations of curves, surfaces, solids, and meshes, making them essential for precision 3D modeling and CAD workflows.
Key Features of 3DM Files
- NURBS Geometry: Supports precise, smooth surfaces critical for advanced design and engineering projects.
- Polygonal Meshes: Stores tessellated 3D models ideal for rendering, simulation, and 3D printing workflows.
- SubD Surfaces: Allows flexible, editable subdivision modeling for organic shapes and complex surfaces.
- Instance References: Saves memory by creating linked object instances, optimizing large and detailed models.
Convert 3DM Files Seamlessly
Autoconverter and Autoshaper simplify 3DM file conversion to popular formats like STEP, IGES, OBJ, STL, and DWG. Automate the export of 3DM polygon meshes for 3D printing, or preserve NURBS data for engineering-grade CAD models. Save files in legacy (Rhino 2.X–7.X) or latest Rhino 8.X formats to ensure compatibility across all project environments.
COB vs 3DM Comparison
| Property | COB | 3DM |
|---|---|---|
| Extensions | .cob, .scn | .3dm |
| Name | Caligari TrueSpace Object | Rhinoceros 3D Model |
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| Textures | ||
| Colors | ||
| Geometry components | ||
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