Radius of the paint brush, in world units. Shift+Ctrl+LMB drag in the viewer, or use the mouse wheel to interactively resize.

The minimum distance the brush has to move before another dab of assets is placed, as a fraction of Radius. For example, at 0.5, you need to move half the brush radius from the last dab before the brush triggers again. Lower values place dabs more densely along a stroke; higher values space them further apart.

A blend factor between the world up direction and the surface normal at each scattered point. At 1.0 (the default) the scattered assets are fully aligned to the surface normal. At 0.0 they point straight up regardless of the surface they're painted on. Values in between blend between the two.

How the brush decides how many assets to scatter inside the brush footprint per dab.

The smallest radius of the assets that will be copied onto the points. Used by the scatter to space points so the smallest assets won’t overlap.

The largest radius of the assets that will be copied onto the points. Used by the scatter to space points so the largest assets won’t overlap.

A value to scale all point sizes by.

Scales the base density of scattered points. Higher values place more assets per dab; lower values place fewer.

A ramp controlling how density falls off from the center of the brush (left side of the ramp) to the edge (right side). The default is a linear falloff from full density at the center to zero at the edge, giving a soft brush profile. Flatten the ramp for a hard-edged brush, or shape it to bias dabs toward the center or the rim.

The desired space between scattered points. The brush will set the density so points end up no closer than this distance after relaxation.

Turn on the checkbox next to Minimum Spacing to enforce a hard minimum distance between scattered points.

A minimum allowed distance between points. Any points that would be closer than this are spaced out to this distance. This guards against parameter combinations that would cause a sudden spike in point density.

When Point Count Method is Number of Points, this is the number of points to generate per brush dab.

Rotates each scattered asset away from its “up” direction (the surface normal blended with world up by Normal Blend) by a random amount, up to this maximum number of degrees. Creates variation in the tilt of the painted assets.

When on, the scale assigned to each asset during the scatter process is multiplied by the uniform or random values specified in the other scale parameters. .

When on, each scattered asset is given a random uniform scale between Minimum and Maximum. When off, all assets get the same scale from Uniform Scale.

When Use Random Scale is off, every scattered asset is scaled uniformly by this value.

When Use Random Scale is on, the smallest random scale factor an asset can receive.

When Use Random Scale is on, the largest random scale factor an asset can receive.