You're right that macro-occlusions are handled by the SSAO techniques.
Specular micro-occlusions can be handled by a slight modification on the Fresnel coefficient in a PBR system. This leaves diffuse micro-occlusions. You're right that this is currently not used. We opted to put other data in our free GBuffer spots for gameplay related features.
I had no idea about this :O there is always something new to learn and I love it
Thank you so much @Larian_KVN for coming here and talk about it. I'm excited to start working with my assets and see how they looks ingame.
