.3dmf — 3D Metafile
Apple Computer, Inc. · 1990s
3D Metafile is an older 3D graphics format primarily used for displaying 3D models on systems that supported it, particularly earlier macOS versions.
Key Features
- Supports 3D geometry, materials, and lighting.
- Can include hierarchical scene structures.
- Allows for embedded texture maps.
- Designed for efficient rendering and transmission.
Best For
- Legacy systems that still rely on 3DMF.
- Archiving old 3D projects created with supporting software.
- Situations where compatibility with specific, older macOS applications is paramount.
Less Ideal For
- Modern 3D modeling and animation workflows.
- Web-based 3D content delivery.
- Sharing 3D models with a broad range of users and software.
- High-fidelity rendering or complex scene manipulation.
Common Use Cases
- Displaying 3D models in applications that supported the format.
- Storing and sharing simple 3D scenes.
- Used in early 3D graphics software on macOS.
- Creating interactive 3D content for specific platforms.
How to Open It
- Use dedicated 3D modeling software that has import capabilities for 3DMF, such as early versions of Strata 3D.
- Some older macOS applications or viewers might be able to open these files directly.
- Convert the file to a more common format like OBJ or FBX using specialized conversion tools or 3D software.
What is a .3dmf file?
3D Metafile (3DMF) is a 3D graphics file format developed by Apple for displaying 3D models. It was designed to be an efficient way to represent and transmit 3D scene information, including geometry, materials, textures, and lighting. While it was once a notable format in certain software, especially on macOS, its usage has significantly declined with the rise of more modern and universally supported 3D file standards. It allowed for relatively complex scene descriptions and was often used for interactive viewing of 3D objects.
Programs That Open .3dmf Files
| Platform | Program | ||
|---|---|---|---|
| Windows | 3D Viewer (via conversion) | Free | |
| macOS | Strata 3D (older versions) | Paid | |
| Preview (limited) | Free | Official | |
| Linux | Blender (via import plugin) | Free |
How to Convert .3dmf Files
| Format | Method |
|---|---|
| .OBJ | Blender, Online Converters |
| .STL | Blender, Online Converters |
Common Problems with .3dmf Files
Frequently Asked Questions
No, 3DMF is largely considered obsolete. Modern 3D workflows use formats like OBJ, FBX, glTF, and STL due to better compatibility and support.
Direct editing of .3dmf files is very difficult as it requires specialized legacy software. It's generally recommended to convert it to a more editable format first.
Technical Details
3DMF is a binary file format that encodes 3D scene data. It typically contains information about vertices, faces, normals, texture coordinates, material properties, and light sources. The format supports a hierarchical scene graph structure and can include embedded texture data. It is not a widely adopted open standard and proprietary implementations were common.