Make PBR Neutral invertible

google / filament

Filament is a real-time physically based rendering engine for Android, iOS, Windows, Linux, macOS, and WebGL2

https://google.github.io/filament/

Apache License 2.0

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Make PBR Neutral invertible #7677

Closed romainguy closed 4 months ago

romainguy commented 4 months ago

Based on model-viewer's change at https://github.com/google/model-viewer/pull/4716

The change has barely any visible impact, but it allows the resulting equation to be more trivially invertible (which we will likely want at some point).