Is there a way to add scratches (like on worn metal) to a shader in Cycles?

  • $\begingroup$ Mix a diffuse shader, to the rest of the node tree, based on a texture; It really depends on your material, though $\endgroup$ Dec 22, 2014 at 21:57
  • $\begingroup$ Use a scratch texture in the normal of a diffuse shader, or the displacement of an output shader . . . $\endgroup$
    – J Sargent
    Dec 22, 2014 at 22:03

1 Answer 1


The simplest way is to use a box-mapped scratch texture to control the roughness of a glossy shader:

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