blender-ue
Blender utilities for Epic Games FAB marketplace and Unreal Engine workflows. Auto-fixes FAB material imports, bridges assets between Blender and UE, and integrates with Claude Code MCP tools.

FAB Material Auto-Fix Addon v1.0.0 — Blender 3D View sidebar panel
Addon
FAB Material Fixer v1.0.0
Platform
Blender 4.5 / 5.0 / 5.1
Vault
Cross-platform auto-detect
What's New in v1.0.0
Smart Collection Grouping
Correctly groups FBX hierarchy (EMPTY → ARMATURE → MESH) into single collection
Multiple Vault Path Support
Auto-detects textures from various FAB vault locations across platforms
Dynamic Texture Matching
No hardcoded prefixes — scans vault and matches by material name keywords
Empty Collection Cleanup
Automatic removal of leftover FBX collections after import
Texture Filter Panel
Filter "All Textures" by material name for easy selection
Manual Texture Mapping
Full panel for assigning textures to specific materials manually
How It Works
- 1.Import FAB model (FBX/GLTF/OBJ) into Blender
- 2.Handler detects new objects automatically
- 3.Creates collection with FAB item name
- 4.Detects vault folder from object naming
- 5.Scans textures from vault (PNG, TGA, JPG)
- 6.Applies textures to Principled BSDF materials
- 7.Clean up empty collections automatically
Installation Guide
You only need ONE file: fab_material_fixer_free.py
Copy the addon file
copy
fab_material_fixer_free.py
to:
~/Library/Application Support/Blender/5.1/scripts/addons/
copy
fab_material_fixer_free.py
to:
%APPDATA%\Blender Foundation\Blender\5.1\scripts\addons\
Enable in Blender
Start Using
Manual Mode (if auto-fix doesn't work)
Troubleshooting
Textures not found?
- -Make sure FAB vault exists at: /Users/Shared/UnrealEngine/Launcher/VaultCache/FabLibrary
- -Click "Re-scan Textures" in the FAB panel
Empty collections left behind?
-Click "Clean Collections" button in the FAB panel
FAB Vault Locations
| Platform | Vault Path |
|---|---|
| macOS | /Users/Shared/UnrealEngine/Launcher/VaultCache/FabLibrary |
| macOS | ~/Library/Application Support/Epic/FabPlugins |
| macOS | ~/Library/Caches/com.epicgames.fab |
| Windows | C:\Program Files\Epic Games\Launcher\VaultCache\FabLibrary |
| Windows | %LOCALAPPDATA%\Epic\FabPlugins |
| Windows | %LOCALAPPDATA%\com.epicgames.fab\Caches |
| Linux | ~/.local/share/Epic/FabPlugins |
| Linux | ~/.cache/com.epicgames.fab |
Panel Features
Supported Asset Types
| Type | Extensions | Detection |
|---|---|---|
| PNG | .png | Auto-scan vault |
| TGA | .tga | Auto-scan vault |
| JPG | .jpg, .jpeg | Auto-scan vault |
| .blend | .blend | Embedded images |