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The curvature shader is an easy way to add detail and realism to your shaders. In this short tutorial, we will use the curvature shader to create a wear and tear shading effect. It will be used to represent where the edges of a hard surface are scraped on the model of a mech. Notice in the image above how the edges of the paint appear worn off, exposing the metal underneath.

You can use either a layer shader or a mix_shader in this tutorial.

Bias
  • In the example images below, the bias parameter of the curvature shader has been increased and exaggerated to better demonstrate the effect.
Samples
  •  Increasing the number of curvature.samples reduces noise and gives a better quality result.


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