Parameters

Basic parameters

• Random Seed: 
  The random seed determines the random values of other parameters that use randomness in this filter.

• Dirt Spread: 0-1 
  Controls the extent of the surface area covered by dirt

• Top Dirt Spread: 0-1
  Controls the top surface covered by dirt, with no focus on the creases of the material

• Dirt Contrast: 0-1 
  Adjust the level of contrast between the different dirt specks in order to control how the dirt blends with the underlying material.

• Dirt Opacity: 0-1 
  Controls the level of transparency of the dirt in the base color channel. 1 is completely opaque.

• Dirt Color: 0-1 
  Select the color of the dirt.

• Dirt Roughness: 0-1 
  Adjust how light scatters across the surface of the material

• Dirt Metallic: 0-1 
  Define how reflective the surface of the dirt is

• Dirt Height: 0-1 
  Controls the impact of the dirt on the Height map

• Dirt Normal Intensity: 0-1 
  Controls how much the level of dirt impacts the Normal map

• Use Surface Imperfections: toggle 
  Enable or disable the use of a surface imperfection. If enabled, an additional control appears:

  Surface Imperfections: image 
  Import an image to use as a surface imperfection or use one of the texture generators available by default in the Sampler asset library such as “Stain” or the “Bnw Spots”