The actual code: https://github.com/google/filament https://github.com/google/filament Additional docs on their material system: https://google.github.io/fila

The actual code: https://github.com/google/filament https://github.com/google/filament Additional docs on their material system: https://google.github.io/filament//Materials.md.html https://google.github.io/filament//Materials.md.html https://google.github.io/filament/Material%20Properties.pdf https://google.github.io/filament/Material%20Properties.pdf Also, I'll plug http://casual-effects.com/markdeep/ http://casual-effects.com/markdeep/ which was apparently used to format the docs.