If
you work with a graphics drawing tablet, such as the Wacom® tablet, you can set the
painting tools to control how color is applied depending on the
pen pressure, angle, rotation, or using the stylus wheel.
Select the Brush tool , the
Pencil tool , or
other painting tool in the toolbox.
Click the Brushes tab to bring the Brushes palette to
the front or, if the palette isn’t open, choose Window >
Brushes.
To make the tool tip size change with pressure, select
Shape Dynamics (be sure to click the word, not just the check box)
in the Brushes palette. Then choose Pen Pressure from the Controls
menu under the Size Jitter slider control.
To make the opacity change with pressure, select Other
Dynamics. Then choose Pen Pressure from the Controls menu under
the Opacity Jitter slider control.
Note: You can set the pen pressure for other brush characteristics
as well. The Brush palette contains controls that vary the angle,
flow, scatter, texture depth, and roundness of the stroke according
to pen pressure.