Cool insight perna. I'm confused a bit with your example. I thought metals were so dense that they can't absorb light. Which iterates the point they are black without reflection/IBL as your first example and technically would make that "physically correct" right? In what circumstance would you not have metals not lit with…
I agree, the only one that went into the "most" detail was probably Andrew Maximov's? tutorial with his Cerberus pistol model. Even then, it was just a quick video breakdown. I haven't actually seen someone complete a tutorial with a start to finish, multi material PBR asset. That would be awesome. One thing I would be…