model/x-uc MIME Type

Learn what model/x-uc identifies for classic Unreal mesh companions and how Poly supports paired .uc and .3d files.

MIME type details for model/x-uc

In active use
MIME typemodel/x-uc
Extensions
.uc
First standardizedUnknown
Created byUnregistered format convention
Browser support
Example applicationsUnreal Engine 1 tools, Text editors
Poly supportPartial. Poly handles the classic Unreal mesh set when `.uc` is paired with its `.3d` data.
Indexed by PolyYes. Poly indexes filenames and available metadata; script declarations are not counted as geometry.
Preview in PolyPartial. A preview depends on the paired mesh data.
Poly agentPartial. An optimized rendition of the 3D object or scene is provided to the agent when paired geometry is present.

What does model/x-uc represent?

model/x-uc is an unregistered identity for the .uc companion used by the classic Unreal mesh format. In that format, the text file works with same-named _d.3d and _a.3d files to describe mesh and animation data.1 The same suffix can identify UnrealScript source in Unreal Engine 3, so a media type supplied by the producer is useful.

Opening and identifying it

Open an unfamiliar .uc in a text editor to inspect its declarations, then locate matching .3d files. Use the original project's tools for mesh work. Modern Unreal projects use .uasset content and do not treat old .uc companions as native assets.2

Support in Poly

Poly indexes the filename and available metadata. When the paired geometry is present, it can preview the object and provide an optimized rendition to the agent. The .uc text itself does not create a geometry preview, and script lines are not individually searchable 3D objects.

Footnotes

  1. Epic Games. Unreal Engine directory structure.
  2. Epic Games. Blueprint Overview. Epic distinguishes UnrealScript .uc files from newer Blueprint assets.
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