I'm not mastered on materials buut I've been studying what I can say about metal is:
Metals have high contrast.I think you exaggerated on the contrast going from 0 to 25% of lighting, and straight from 25% to 100%, when the reflex is only 10% of the image. It can exist, but only on scenes when the metal is been illuminated by a very small source of light.
I made an example of normal metal on grayscale:
Hight contrast, nothing exagerated.
Put some collor to it, because I read somewhere that metals are never completely gray (I think it's because of scene light or scene color composition):
I'm considering just white light here, and trying to make some copper, for example.
Hue shifting:
And for making it more like a real copper, I raised its saturation. I think metals in general have high saturation / Also, a less red copper just for comparison.too:
I made a test because there was something bothering me about the lighting:
But now it seems like plastic
(P.S. What is [C&C]?
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