If you select one with several separate dots, and lower the spacing to 0.02, you can get a sort of brush stroke effect. The simplest way to get a visible brush stroke is to select a predefined brush.
While a digital painting program is a fundamentally different medium from the oil paint one, we can utilize some tricks to get visible brush strokes. When looking at oil paintings, especially the impressionistic ones, it is hard not to be in awe of the effect the visible brush strokes have on the painting.
