Material breakdown for [an
object]: every surface with
base colour, roughness,
metalness, and one
imperfection — wear,
fingerprints, dust traps.

Material Breakdown for a Model

Roughness and wear, which is what separates rendered from real.

Prompt

Write a material breakdown for a 3D model of [an object]: every surface listed with base colour, roughness, metalness, and one imperfection — a wear pattern, fingerprint zone, or dust trap — that makes it look used.