About unreal-export
unreal-export is a skill for exporting static and skeletal meshes from Blender to Unreal. It covers centimeter-scale checks, FBX settings, UCX collision, LODs, sockets, and post-import validation.
Key features
- 01Unreal-oriented FBX settings
- 02Centimeter-scale verification
- 03UCX collision naming and setup
- 04LOD and socket naming
- 05Post-import asset checks
Use cases
- 01Exporting static meshes to Unreal
- 02Preparing skeletal meshes for Unreal
- 03Setting up collision, LODs, or gameplay sockets
Install
Copy the command and run it in a terminal.
$
npx skills add https:/After installing, type/unreal-exportin Claude Code to confirm it loaded.
Bundled filesreferences/ucx-naming.mdreferences/unreal-checklist.md
Details
From the project READMEUnreal Export
UE-ready FBX. Correct centimeter scale awareness. UCX collision. LOD and socket naming.
When to Use
- Static mesh or skeletal mesh to Unreal
- UCX/UCLX collision export
- LOD chain import
- Socket / pivot setup for gameplay
Pre-Flight
asset-optimizationPASSlod-pipelinefor LOD0–Ncollision-proxyfor UCX meshes- Apply scale; pivots at intended UE origin
Scale Note
Unreal is centimeter-based. Common approaches:
- Model in meters in Blender, export FBX with unit conversion / 0.01 awareness per project pipeline
- Or work to project-documented scale and verify with a 100cm reference
Always measure a known edge after import.
FBX Defaults (Static)
Selected Objects
Apply Scalings: FBX All
Forward: -Z Forward
Up: Y Up
Mesh: ON
Smoothing: Face
Naming for UE
| Type | Pattern |
|---|---|
| Static mesh | SM_Name |
| Skeletal | SK_Name |
| Skeleton | SKEL_Name |
| LOD | SM_Name_LOD0 … |
| Collision | UCX_SM_Name_01 |
| Socket empty | SOCKET_Name |
Collision
- Prefer convex UCX pieces over complex mesh colliders
- Multiple UCX meshes supported
- See
collision-proxy
Skeletal
- UE mannequin-oriented proportions when required
- Root bone; no leftover Blender deform leftovers
- Export morph targets if needed (shape keys)
Verify in Unreal
- Scale (door ~200cm, character ~180cm)
- Collision wireframe
- LODs auto-detected
- Materials / texture sampling
- Sockets transform
Constraints
MUST DO
- Confirm scale with known-dimension test
- Prefix collision with
UCX_ - Validate LODs and materials after import
MUST NOT DO
- Export without collision plan for physics actors
- Mix unit systems undocumented
Reference Guide
| Topic | Reference | Load When |
|---|---|---|
| Unreal Checklist | references/unreal-checklist.md | When needed |
| Ucx Naming | references/ucx-naming.md | When needed |
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