Hi,
This is not an issue but rather a question regarding the maps in your demo scene.
Looks like a nice composition of maps and they do indeed produce great visuals.
Is it correct that the green/blue maps is a merged Metallic and Roughness map?

I can also see some bump maps and some opacity maps.
Let's say I have a mesh and I want to experiment creating a scene like this, is the workflow you followed from a certain program (Substance painter e.g) or did you create this texture manually?
Btw +star for amazing repo
Hallo,
the Spoza GLTF model comes from https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0/Sponza. Quoting from their readme:
[...] repacked the separate metallic/roughness textures into the glTF layout (G - roughness, B - metallic)
The demo has a little info icon in the bottom left corner which contains a link to the source.
Closing due to inactivity.
Thanks a lot for you reply. It lead me to the answer. It was indeed prepared in Substance :) Nice repo. Keep it up