Metalness

Materials metalness is a characteristic of PBR workflow, which means that there is the option of selecting how metallic a surface is. Metallic materials have a different reflective property then non-metallic ones, they look more reflective with no diffuse property.

In short, the idea is that metallic materials reflect all elements of the environment multiplied with material color, while non-metallic materials, also called dielectric materials, reflect only the bright regions of the environment added to the material color.

* Change metallic value