Directional Scratches

Generators / Noises

Adjustable scratches along a direction, with normal output for fine detail.

Select a node to adjust its parameters. Double-click a node to inspect.

Parameters

Parameter	Type	Default	Range	Description
`amount` Amount	int	2000	1 to 100000	Number of scratches in the tile.
`length` Length	float	0.3	0.005 to 0.75	Typical scratch length relative to the shorter output dimension.
`length_variation` Length Variation	float	0.25	0 to 1	Uniform sampling radius around Length. Out-of-range portions are excluded rather than clamped.
`width` Width	float	0.25	0 to 1	Scratch width from the minimum visible hairline at 0 to one pixel on a 256px texture at 1. It scales with resolution.
`width_variation` Width Variation	float	0.55	0 to 1	Uniform sampling radius around Width. Out-of-range portions are excluded rather than clamped.
`intensity` Intensity	float	0.2	0 to 1	Opacity of the underlying elongated radial-gradient primitive.
`intensity_variation` Intensity Variation	float	0.3	0 to 1	Uniform sampling radius around Intensity. Out-of-range portions are excluded rather than clamped.
`rotation` Rotation	float	0	0 to 1	Main scratch direction in turns.
`rotation_variation` Rotation Variation	float	0.12	0 to 1	Random rotation variation in turns. 1 covers every undirected scratch orientation.
`curve` Curve	float	0	-1 to 1	Smoothly bows each scratch while preserving the exact uncurved endpoint positions. Positive and negative values bend in opposite directions.
`curve_variation` Curve Variation	float	0.12	0 to 1	Uniform sampling radius around Curve. Out-of-range portions are excluded rather than clamped.
`disorder` Disorder	float	0	0 to 1	Moves the scratches through a loopable motion path.
`disorder_speed` Disorder Speed	float	1	0 to 2	Scales the displacement applied by Disorder using the Gaussian Spots motion model.
`disorder_anisotropy` Disorder Anisotropy	float	0	0 to 1	Morphs phase-randomized orbits into directional tracks.
`disorder_anisotropy_angle` Disorder Anisotropy Angle	float	0	0 to 1	Direction of anisotropic track motion, in turns. It does not affect scratch Rotation.
`normal_strength` Normal Strength	float	0.1	0 to 1	Slope of the scratch walls before Intensity blends the normal toward flat.
`normal_format` Normal Format	enum	match_graph		Normal map format: Match Graph, OpenGL (Y-up), or DirectX (Y-down). `match_graph` : Output in the graph's normal format. `opengl` : Output an OpenGL Y-up normal map. `directx` : Output a DirectX Y-down normal map.
`seed` Seed	float	0	0 to 100	Random seed for scratch placement and variation.

Outputs

mask (default format: r32float)
normal (default format: r32float)