The Dirt Texture node can create different shading effects based on ambient occlusion calculations. This texture is useful for simulating dirt, dust, or wear and tear, as well as blending textures based on a surface's recesses.
Strength - Controls the Dirt intensity across the geometry surface.
Details - Controls the Details intensity.
Radius - Controls the dirt spread across the model's surface from the recessed parts towards the exposed parts.
Tolerance - Reduces black edges on rough tessellated meshes.
Invert Normal - Reverses the Dirt texture effect based on the surface normal direction.