Hi ! (especially @sebavan the master of masters ?)
It has been noticed in the Babylon.JS Editor that PBR materials don’t look same once a project is closed and re-opened (link to the issue: The editor Scenes and the post-play Scenes are completely different · Issue #286 · BabylonJS/Editor · GitHub)
I have finally found a repro on playground and it looks like it is related to pbr materials when they are parsed.
Playground repro: https://playground.babylonjs.com/#FEEK7G#222
In this repro, 1 second after scene is ready the material is serialized then parsed to be re-applied (like saving/loading an editor project).
Once the pbr material is serialized then parsed, we can see that the level of the environment texture applied on the PBR material is higher than at startup.
Do you have any idea?