There are hacky ways to do this, see the latest demo video of Allegorthmmic Alchemist for an example of this in practice, removing lighting/shading info from a texture. You end up losing detail. More info why https://www.unrealengine.com/en-US/blog/imperfection-for-perfection
@musashidan And that needs to change. There should be a way this can be decoded. So what about textures u need to take in a subway underground or dark place. A way to decode the exposure of the photo, calculate the light intensity as well as the original color of each surface. I don't know.Maybe there would be something of…