Convert OFF to 3DM Files

Convert OFF to 3DM

OFF to 3DM Conversion

Converting OFF to 3DM is simple - just follow our straightforward guide:

  1. Download & Install:

    Convert your OFF files to 3DM format seamlessly using our Autoconverter or Autoshaper - simply install and launch the software on your system.

  2. Import OFF File:

    Either click Open... to browse for your .off file, or drag and drop it anywhere in the application window.

  3. Export to 3DM Format:

    Use Save As... to specify both location and filename (with .3dm extension) for your exported file.

Need help with OFF to 3DM conversion? Our comprehensive guides ensure smooth OFF files conversion:

OFF Object File Format

A straightforward, human-readable file format designed for representing 3D polygonal models. As a lightweight alternative to complex CAD formats, OFF focuses on storing essential geometric data - vertices, edges, and faces - without proprietary constraints.

Key Features of OFF

  • ASCII Text Files:

    : OFF files are text-based and use a simple syntax to store geometric data of 3D objects. The files can be easily edited and viewed with any text editor or viewer.

  • Polygonal Shapes:

    The OFF format allows to store 3D triangles, quads, and other generic polygonal shapes. Each shape is defined by a list of vertices and a list of faces.

  • Limitations:

    OFF files support only geometric data - materials, textures, and group names from source files are discarded during conversion.

OFF File Conversion

Our software offers two specialized approaches for OFF file conversion. Autoconverter handles conversion of OFF files to common mesh formats including STL, SKP, OBJ, and PLY, maintaining the original polygonal structure. Autoshaper provides advanced conversion of OFF polygonal data into smooth NURBS surfaces, exporting to BREP, STEP, and IGES formats for CAD workflows.

3DM Rhinoceros 3D File

The native file format for Rhinoceros 3D (Rhino), a powerful and versatile NURBS-based 3D modeling software. As Rhino’s default format, 3DM is designed to store precise mathematical representations of curves, surfaces, and solids, making it ideal for high-accuracy modeling across industries.

Supported Geometry Types

Known for its precision and versatility, the 3DM format supports a comprehensive range of geometric data types, making it ideal for both organic freeform modeling and technical CAD applications, including:

  • NURBS Surfaces:

    Enables mathematically precise, smooth, and editable surfaces essential for high-end industrial and automotive design.

  • Polygonal Meshes:

    Stores tessellated geometry for 3D printing, rendering, and simulation.

  • SubD (Subdivision Surfaces):

    Allows for flexible, organic modeling with editable subdivision geometry.

  • Instance References:

    Lightweight object copies (not duplicates) that reference a single source, saving memory and ensuring synchronized updates.

3DM File Conversion

Our software solutions enable seamless conversion between 3DM and other major CAD formats (e.g., STEP, IGES, OBJ, DWG, STL). Autoconverter exports only polygonal meshes (STL, OBJ, etc.), suitable for 3D printing and real-time rendering, while Autoshaper preserves NURBS geometry, ensuring superior accuracy for CAD, CAM, and engineering workflows. Both converters can save 3DM files in legacy formats (Rhino 2.X - 7.X) or the latest Rhino 8.X version, ensuring smooth collaboration across different software environments.

OFF vs. 3DM Comparison

Property OFF 3DM
Extensions .off .3dm
Name Object File Format Rhinoceros 3D Model
Versions
  • Min: Rhino 2.x
  • Max: Rhino 8.x
Textures
Colors
Geometry components
Readers
Writers