The Falloff allows you to control the Strength falloff of the brush. The falloff is mapped from the center of the brush (left part of the curve) towards its borders (right part of the curve). Changing the shape of the curve will make the brush softer or harder. Read more about using the Curve Widget.
- Frontface Falloff
As faces point away from the view the brush strokes fade away to prevent harsh edges.
- The angle at which the falloff begins.