The Scratches texture map produces a pattern that can be used for adding wear and tear to the surface of an object (figure 1).


Figure 1: The Scratches node and it's associated parameters


Scratches Parameters

Layer Count - Controls the number of scratch layers.

Curl - Determines the curvature of the scratches.

Rotation - Adjusts the scratch orientation.

Frequency - Controls the horizontal and vertical frequency of the effect.

Steps - Adjusts the stepwise frequency increase from one layer to the next.

Scratch Color - Determines the color of the scratches.

Random Seed - Provides random variations to the pattern of scratches.

Transform - Positions, scales, and rotates the surface texture.

Projection - Sets how the texture projects onto the surface.