UC File Format (.uc)
A UC file is UnrealScript source code, the programming language of the original Unreal engine, and in that engine's tooling it commonly held the #exec directives that assigned textures and animation sequences to a paired 3D mesh rather than any geometry of its own.
UC at a glance#
| Full name | UnrealScript |
|---|---|
| File extension | .uc |
| Category | 3D Models |
| Compression | Uncompressed |
| FileFlip support | FileFlip does not handle this format |
Strengths and limitations of UC#
What UC does well
- Plain text, so the texture and animation assignments it declares are easy to read and edit by hand
Where UC falls short
- Contains no mesh geometry at all; it's a script, not a model, and only makes sense alongside its paired _d.3d and _a.3d files
- Specific to the original Unreal engine's toolchain, which has been superseded for decades
- A UC file on its own converts to nothing, since there's no geometry in it to convert
There's no reason to create a UC file today outside restoring or modding an original Unreal (1998) engine asset.
There's nothing to convert in a UC file by itself; the geometry it references lives in a separate paired 3D file.
How to open a .uc file#
A .uc file opens in the programs below, grouped by the platform you are on.
| Platform | Programs that open it |
|---|---|
| Windows | UnrealEd (original Unreal engine tools) |
UC questions people ask#
What is a UC file?
A UC file is UnrealScript source code from the original Unreal engine, not a 3D model. In the classic Unreal toolchain it commonly held the commands that assigned textures and animation sequences to a mesh stored separately in a paired 3D file.
Why is UC listed alongside 3D model formats?
A UC file shows up next to model formats because the original Unreal engine's mesh loader reads it alongside a _d.3d and _a.3d pair to pick up texture and animation assignments the geometry files don't carry. The UC file itself still contains no geometry.
Can a UC file be converted to a 3D model?
No, not on its own. A UC file has no mesh data to convert; the actual geometry lives in the Unreal engine's paired 3D files, which is what a converter needs to produce a model.
Converting UC files#
FileFlip cannot open a .uc file, so there is nothing to convert it into here. It appears on the site as something other formats can be converted to.
FileFlip does not write .uc files, so nothing on the site converts into this format. It works as a source only.
Every conversion runs inside your browser. The file is read from your disk, the work happens on your own machine, and nothing is uploaded. How FileFlip works names the engine behind each family and how to verify that for yourself.