Dust shader

This shader automatically adds dust to any model with any material and independantly from UVs. It is based on the assumption that dust deposits on surface of the model facing up (so your model’s Z vector should face up) and in interstices (AO)

It comes as a Blend material, simply replace the first material with your own.

You can (should):

  1. Tweak the dust shader iself for what you want (color, etc)
  2. Tweak the dust mask
    • Noise size according to your scene
    • Falloff curve and color for more or less top dust
    • AO map parameters for more or less dust in cracks and interstices

Download at MrMaterials