Are you talking to anyone involved in the official GLTF codebase?

[andybak]

You've got the only exporter and viewer for Unity that seems to handle baked lights correctly.

There's some work and discussion around this on the official repo but nothing has been released.

Mozilla Hubs have been talking about future plans for a Unity-based workflow and I'm sure they would also be interested in your work.

[dtysky]

Hi, as you say, SeinJSUnityToolkit uses the GLTFSerializer part of official GLTF codebase UnityGLTF, but for working with Sein.js better(like optimized production, customize extensions...), I wrote the exporter, previewer, and a part of importer by myself.

Thanks for your suggestion. I will create an issue on official repo to talk about our implementation, and also contact Mozilla Hubs to talk about our solution.