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Multi-Mat Baker — One Click. One Material. Game Ready.
Downloaded a character with 30 materials? Bought an asset pack where every piece has its own shader? Trying to export a complex prop to Unity or Unreal but your draw calls are out of control?
Multi-Mat Baker solves this in a single click.
Select your objects, press Generate, and the addon automatically handles every step of the pipeline — UV creation, island packing, PBR baking, and material consolidation — delivering a clean, single Principled BSDF material with a full baked texture set, ready to drop into any game engine.
⚡ What It Does
Multi-Mat Baker automates the entire multi-material → single texture workflow:
- Fixes UV channel names across all selected objects for correct baking
- Creates a dedicated BakeUV channel and packs all islands into one shared 0–1 UV space
- Bakes all 6 PBR maps — Diffuse, Normal, Roughness, Metallic, Height, and AO
- Builds the final material — one clean Principled BSDF with all textures wired correctly
- Removes all old materials and assigns the new consolidated one
🗺️ Full PBR Texture Set — All 6 Maps
| Map | Output |
|---|---|
| Diffuse / Base Color | Raw albedo, no lighting — correct for game engines |
| Normal | Tangent-space, baked as 32-bit float — standard for Unity & Unreal |
| Roughness | Native Cycles bake type |
| Metallic | Emission trick — no native Blender type, handled automatically |
| Height / Displacement | Emission trick — handled automatically |
| Ambient Occlusion | Baked and available for manual blending |
🎛️ Full Control When You Need It
The addon works in one click with smart defaults or gives you step-by-step control:
- Resolution: 512 / 1024 / 2048 / 4096 / 8192px
-
Custom texture prefix — e.g.
Hero→Hero_Diffuse_2048,Hero_Normal_2048 - UV island margin control — prevent texture bleeding between islands
- Bake pixel margin — set per-resolution (16 for 2K, 32 for 4K, 64 for 8K)
- Cycles sample override — low samples for previews, high for finals
- Auto-save to folder — all maps saved as PNG automatically
- Missing map detection — smart dialog warns you before wasting bake time
📊 Real-Time Progress Tracking
Blender's bake is blocking — so Multi-Mat Baker shows live progress between every map:
- Status bar at the bottom of the Blender window
- Viewport header showing the current map and step count (e.g.
MMB [3/6] — Baking Roughness…)
🎮 Built for Game Developers and Asset Creators
Perfect for:
- Game developers bringing Blender models into Unity, Unreal Engine, or Godot
- Asset store creators consolidating complex multi-material props
- Archviz artists optimizing models for real-time engines
- Anyone working with downloaded or purchased 3D assets with messy material setups
✅ Compatibility
- Blender 3.0 → 4.x (including 4.2+ Extensions system via
blender_manifest.toml) - Cycles render engine (auto-switches if needed — restores your settings after)
- Principled BSDF based materials
What You Get
-
multi_mat_baker.zip— install directly via Blender Preferences - README with full documentation
- Free updates for the current major version
