I downloaded a perforated metal material from poliigon. It came with the following files:
AO.jpg
COL.jpg
DISP.jpg
DISP16.TIF
GLOSS.JPG
MASK.PNG
NRM.JPG
NRM16.TIF
REFL.JPG
I am not sure which of these files to put where in the enscape material editor. I have been going one by one with no real success. Any guidance would be great.