When you reach for a wide, flat brush, you expect the stroke you make to depend on how you hold the brush. A stroke using the face of the brush comes out wide. A mark using the edge is narrow.
Corel Painter produces realistic brush strokes that fade in and out; change width, tilt, and angle; and penetrate based on the stylus input. Brush variants that use computed brushes, such as the Smeary Flat variant in the Oils category, also react to stylus tilt (how close to vertical the stylus is held) and bearing (the compass direction in which the stylus is pointing).
Tilt can significantly affect brush strokes. If you get unexpected results, especially with bristle-type brushes or airbrushes, you can try reducing the tilt of your stylus. Extreme tilt angles are usually undesirable.
Many Corel Painter brushes also respond to stylus pressure (how hard you press with the stylus). Depending on variant settings, greater stylus pressure can increase the width of a brush stroke, the penetration of color, or the degree of other effects. The Corel Painter airbrushes also respond to the fingerwheel on the Wacom Intuos airbrush, simulating a needle control that adjusts how much ink is sprayed.
You can link brush settings (such as size, opacity, and angle) to stylus input data (such as velocity, direction, pressure, airbrush fingerwheel, tilt, and bearing). Refer to "Expression Settings" on page 262 for more information about linking brush settings to stylus input controls.
In theory, a mouse has no pressure information. A mouse button is either "on" (button down) or "off" (button up). Corel Painter introduces mouse controls that let you simulate stylus pressure, tilt, bearing, and fingerwheel settings.
If you are using a mouse with Corel Painter, you can compensate for the lack of pressure information by adjusting size, opacity, and grain on the property bar. For example, reducing opacity or grain can produce the same results as pressing more lightly with a stylus.
The content CD contains brushes designed specifically for use with a mouse. For information about loading alternate brush libraries, refer to "Loading Alternate Libraries" in the Help.
Corel Painter lets you record brush strokes, save them, and later use the saved stroke data. This makes it possible to record a stylus-created brush stroke, save it, and then use a mouse to reproduce the stroke that you made originally with the stylus. Refer to "Recording and Playing Back Strokes" on page 161 for more information about recording brush strokes to further enhance mouse functionality.
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