It's not specific to the old pbr.basic rendertype - simply put, any PBR material that sets the new NoMetallicRoughnessMap flag true is always drawn fully reflective as if it had a Roughness value of 0, despite what the value actually is. (changing it doesn't do anything)
It's not specific to the old pbr.basic rendertype - simply put, any PBR material that sets the new
NoMetallicRoughnessMap
flag true is always drawn fully reflective as if it had a Roughness value of 0, despite what the value actually is. (changing it doesn't do anything)