AO Lightmapper - GPU AO Baker for GLB & FBX

One-click GPU-accelerated Ambient Occlusion lightmap baker for GLB and FBX models.

AO Lightmapper automatically generates UV2 coordinates, bakes high-quality Ambient Occlusion maps using GPU ray tracing, and exports the results as standalone textures or embedded directly into GLB files.

GPU ray-traced AO baking • Up to 2048 samples • Up to 4K lightmaps
No Blender setup. No manual UV creation. No cloud services

Generate production-ready AO lightmaps in seconds for GLB and FBX assets.

** All images shown were generated using AO Lightmapper **

Why AO Lightmapper?

• No Blender setup required
• Automatic UV2 generation
• GPU ray-traced baking
• Works directly with GLB and FBX assets
• Export ready for Three.js and Babylon.js
• Fully local processing
• Designed for indie developers and technical artists

Core Features

AO Baking

• GPU Accelerated Baking
• Up to 2048 AO samples
• Up to 4096×4096 lightmaps
• Real-Time Preview
• Denoising
• Character-Aware Baking

Asset Support

• GLB Import/Export
• FBX Import
• Skeletal Meshes
• Animations

UV Generation

• Automatic UV2 Generation
• Advanced UV Packing
• UV Channel Selection

Workflow

• Batch Processing
• Simple Scene Editing Tools
• Easy to use Material Inspector
• One-Click Export

Unity Integration

• Included Unity Extension
• Automatic AO Generation from Unity
• Batch Processing of Multiple Prefabs
• Automatic Asset Reimport
• Automatic Material Assignment
• Replace Existing Assets or Keep Originals
• Replace All Prefab Instances in a Scene

Simple Workflow

1. Load a GLB or FBX model.
2. Generate UV2 automatically.
3. Bake Ambient Occlusion.
4. Preview results instantly.
5. Export your lightmapped assets (GLB Zipped /  GLB Embedded).

Export

ZIP Export (Separate Files)
Exports a ZIP package containing the unwrapped GLB model and its lightmap textures as separate files, ideal for custom workflows and external material setup.

Embedded GLB Export
Exports a single self-contained GLB with the baked lightmap embedded: as Ambient Map in Babylon.js and as AO Map in Three.js.

Included

• Windows / MacOS / Linux Desktop Application
• Future updates included

Perfect For

• Game Development
  
• 3D Experience Development
  
• Babylon.js Projects
• Three.js Projects
• Product Configurators
• Technical Art Pipelines
• Asset Optimization Workflows

Important: Model Quality Matters

AO Lightmapper is designed to bake high-quality ambient occlusion from your existing geometry, but the final result will always depend on the quality of the source asset.

• For best results, make sure your model has:
• Clean, well-structured geometry
• Correct face orientations and normals
• No overlapping or broken mesh sections
• Reasonable topology and scale
• Properly authored UVs and materials

While AO Lightmapper automatically generates UV2 lightmap coordinates, it cannot fully compensate for issues such as inverted normals, severely distorted geometry, non-manifold meshes, or poorly constructed assets.

In short: good input produces good lightmaps. AO Lightmapper can automate and accelerate the baking process, but it is not a substitute for proper 3D modeling practices.

** Also available: Quick AO Lightmapper for Babylon.js Sandbox and Three.js Editor. **

Quick AO Lightmapper