.mdc File Extension

Learn what a .mdc file contains, how to open it, and how Poly supports this 3D format.

File extension details for .mdc

Full Support
File typeQuake III compressed model
MIME type
EncodingBinary compressed animated mesh frames with skins and tags
Operating systemsWindows, macOS, Linux
Opens withNoesis, Blender
Poly supportYes. Poly recognizes valid files and extracts their supported scene content.
Indexed by PolyYes. Poly indexes the filename and extracted model metadata when the file is valid.
Preview in PolyYes. Poly provides a visual preview for valid geometry.
Poly agentYes. An optimized rendition of the 3D object or scene is provided to the agent, allowing compact yet information-rich multimodal interaction with 3D files.

What kind of file is a .mdc?

Quake III compressed model files use binary compressed animated mesh frames with skins and tags. The format is associated with game-era 3D assets and is designed around compact runtime playback rather than general interchange.1

How do I open a .mdc?

Use Noesis or Blender with a matching importer. Keep skins and related assets alongside the model, then verify scale, axis orientation, materials, and animation timing after import.

Poly support for .mdc

Poly recognizes the model/x-mdc media type and indexes the filename plus supported model metadata. Valid geometry can receive a visual preview. The Poly agent receives an optimized rendition for compact, information-rich multimodal interaction. The original remains available for download.

Working with .mdc files

Export a copy to glTF or GLB for modern scene exchange, or OBJ for a static mesh. Keep the original because game-specific animation, skin, and tag data may not survive conversion.1

Footnotes

  1. id Software. Reference source. Documents the format's structures or its use in the relevant game toolchain. 2
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