Smooth Modifier
The Smooth Modifier changes the value of one or more stroke/points properties like: location, strength, thickness or UV texture position trying to maintain similar values that make the line fluid and smoother.
Options
Affect
Combination of stroke/points properties that will be affected by the smooth factor.
Position:
Smooth affect the point location.
Strength:
Smooth affect the point strength (opacity).
Thickness:
Smooth affect the point thickness.
UV:
Smooth affect the point UV rotation.
Factor
Strength of the smooth effect.
Repeat
The number of smoothing iterations, equivalent to executing the Smooth tool multiple times. High values can reduce the animation performance (FPS).
Keep Shape
When enabled, the smoothing algorithm will try to maintain as close as possible the overall shape of the original stroke.
Influence
See Influence Filters.