Missing Documentation: GLTF Extension support

[andybak]

Unless I've overlooked it there's no information on which GLTF extensions are supported (if any).

This is fairly critical info for planning workflows and interoperability with other tools.

[dav-s · Accepted solution]

Hi! Thanks for the callout!

Currently, we support the following extensions:

- KHR_texture_transform

- KHR_texture_basisu

- KHR_materials_unlit

And approximate support for KHR_materials_pbrSpecularGlossiness for displaying some legacy materials.

We are always trying to improve our support for these models so please let us know if there are any critical ones we are missing.

[andybak]

This might be useful to get a sense for what is widely supported: https://docs.google.com/spreadsheets/d/e/2PACX-1vQlj8EwxpyA7g9ojvCpn6bOMJ0xRW9ZldvSp5fFP8yMp2Ahmu6CA...