how is marly both reflective and scratched then?  usually, those aren't properties of rubber, but all of those floors (except the backdrop ref) are both reflective and scratched.  must be an interesting substance.  either way, the right material has to be fairly reflective and have the right sort of scratched noisy displacement.  tiles are easy, i'm not worried about that, but the wear looking like scuffs and scratches and not just some procedural addition seems tricky.

interesting, interesting lighting advice.  thanks so much for sharing it.  it helps a lot.  i'm going to have to think about it to internalize it. 

so, in 3d land where you're the master of the space, you should go with low lights in general?