The Stroke palette provides a variety of stroke types which determine how each tool is applied when the cursor is dragged on the canvas. By default, most painting tools are applied with the Dots or Freehand stroke selected — these produce lines which follow the cursor drag.

Curve

Uses the new Stroke > Curves functions combined with a standard sculpting brush. This makes it possible to sweep your sculpt along a precise curve.

Curve Mesh

Creates a curve with a cylinder inserted along the curve’s length, snapped to the canvas’ working plane. When using this brush your model cannot have subdivision levels, meaning that you will use it to its greatest potential when working with a DynaMesh.

Curve Mesh Insert

Similar to Curve Mesh, except that the curve snaps to the surface of the model rather than the canvas plane.

Your model cannot have subdivision levels when using this brush. Within the Brush >> Modifiers sub-palette the Brush Modifier slider will control how many faces the mesh has when drawn onto a model. For example, the default value of 20 creates a smooth cylinder but if you change Brush Modifier to 4 then the mesh will have a square cross section when drawn.