Hola Punchinelli!! Lamento el problema que te está ocasionando.

I have updated the app again to version 1.5.4.

If you open it, it will download automatically; you just need to install it and try again.

If the same error persists, could you email the model that is causing problems to drleria@gmail.com

Yes, that is exactly the intended workflow.

The Unity Extension uses AO Lightmapper as the baking/export pipeline from inside Unity. It can process Unity meshes or prefabs, generate the AO/baked texture data, create the required UV2 when needed, and output a standard GLB/glTF asset that you can then use outside Unity.

So yes: you can use Unity as the preparation tool, generate the baked AO version, export the resulting GLB, and load it later in Three.js using GLTFLoader.

Just to clarify: this is not exporting Unity’s native scene lightmaps in the traditional Unity lightmapping sense. AO Lightmapper generates asset-based baked Ambient Occlusion/lightmap textures for the model itself, which makes the asset portable and suitable for Three.js, Babylon.js, React Three Fiber, etc.

The generated GLB is saved back into your Unity project folder, so you can also copy/use that file directly in your web project.

🚀 Development Update – AO Lightmapper v1.3.1

A new update is now available!

Highlights

• Added export optimization options:
  • Global texture format selection
  • Texture size control
  • Draco compression
  • Meshopt compression
  • Prune/Clean optimization
• Added WebP support for AO Lightmap export (PNG and JPG are still available).
• General performance and optimization improvements.
• Updated the Quick AO Lightmapper Chrome Extension for Babylon.js Sandbox.

Free license giveaway is still active.

Current status: 11 of 20 free licenses remain available.

Claim yours here:

https://dev.viseni.com/giveaway

Thanks again to everyone testing the tool and sharing feedback ❤️

To celebrate the latest AO Lightmapper updates, I'm giving away 20 free licenses.

AO Lightmapper is a GPU-accelerated Ambient Occlusion baker for GLB and FBX assets, designed for fast and simple 3D workflows.

The giveaway is now live!

Tigre has already approved the first claims.

Right now: 14 of 20 free licenses remain available.

If you're working with GLB, FBX, Babylon.js, Three.js, WebGL or real-time 3D workflows, this is a great opportunity to try AO Lightmapper for free.

Claim your license here:

https://dev.viseni.com/giveaway

Project page:

https://drleria.itch.io/ao-lightmapper

If you find the tool useful, an itch.io review would be hugely appreciated. Reviews help other developers discover the project and help guide future updates.

Thanks to everyone who has already claimed a license and shared feedback ❤️

AO Lightmapper — GPU-Accelerated Ambient Occlusion Baking for GLB Assets

Hi everyone!

I'd like to share AO Lightmapper, a desktop application designed to simplify Ambient Occlusion baking for modern 3D workflows.

The goal of the project is simple: generate UV2s, bake Ambient Occlusion, preview the result, and export production-ready assets from a single application.

Demo Video

AO Lightmapper

https://drleria.itch.io/ao-lightmapper

Features

✅ GPU-accelerated AO baking

✅ Automatic UV2 generation using XAtlas

✅ GLB support

✅ FBX import support

✅ Real-time viewport preview

✅ Batch processing

✅ Skeletal Mesh support

✅ Animation Controller

✅ Material Editor

✅ Embedded GLB export

✅ Separate lightmap export

✅ Windows support

✅ macOS support

✅ Linux support (Beta)

Why AO Lightmaps?

Ambient Occlusion is one of the most effective ways to add depth, contact shadows, and realism to 3D assets while maintaining excellent runtime performance.

AO Lightmapper allows artists, indie developers, technical artists, and content creators to quickly generate high-quality AO maps without relying on multiple applications and complex workflows.

Bonus: Quick AO Lightmapper Chrome Extension

In addition to the desktop application, I also created Quick AO Lightmapper, a Chrome extension that brings AO baking directly into:

• Babylon.js Sandbox
• Three.js Editor

The extension integrates directly into the editor interface and allows AO maps to be generated and previewed without leaving the browser.

Chrome Extension:

https://chromewebstore.google.com/detail/quick-ao-lightmapper-baby/fiiacaihoglfogchgndpmpmoljppgpjl?utm_source=item-share-cb

Built for Modern Pipelines

Whether you're creating games, WebGL experiences, product configurators, or architectural visualizations, AO Lightmapper helps streamline the lightmapping process and improve visual quality.

Feedback and suggestions are always welcome.

Happy baking! 🚀

totally agree!

Next update sir 🙌🔥👍