Adobe Photoshop CC 2014 v.14.xx - Manual (Page 654)

Adding dynamic elements to brushes
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Note:
Size Jitter and Control
Off
Fade
Pen Pressure, Pen Tilt, Stylus Wheel
Adding brush dynamics
Color dynamics brush options
Transfer brush options
Adding brush dynamics
The Brush panel provides many options for adding dynamic (or changing) elements to preset brush tips. For example, you can set options that
vary the size, color, and opacity of brush marks over the course of a stroke.
You work with two components when adding dynamics elements to a brush:
Jitter percentages specify the randomness of dynamic elements. At 0%, an element does not change over the course of a stroke; at 100%,
an element has the maximum amount of randomness.
Options in the Control pop-up menus specify how you want to control the variance of dynamic elements. You can choose not to control the
variance of an element, to fade an element over the specified number of steps, or to vary an element based on pen pressure, pen tilt,
position of the pen thumbwheel, or pen rotation.
Pen controls are available only when you’re using a pressure-sensitive digitizing tablet such as the Wacom tablet, and supported pens (for
rotation control and thumbwheel). A warning icon appears if you select a pen control but have not installed a tablet or are using a pen that is
missing the control feature.
Brush shape dynamics
Shape dynamics determine the variance of brush marks in a stroke.
Brush stokes without shape dynamics and with shape dynamics
Specifies how the size of brush marks vary in a stroke. For more information, see Creating and modifying brushes.
To specify the maximum percentage of jittering, type a number or use the slider to enter a value. To specify how you want to control the size
variance of brush marks, choose an option from the Control pop-up menu:
Specifies no control over the size variance of brush marks.
Fades the size of brush marks between the initial diameter and the minimum diameter in the specified number of steps. Each step is
equal to one mark of the brush tip. The value can range from 1 to 9999. For example, entering 10 steps produces a fade in 10 increments.
Varies the size of brush marks between the initial diameter and the minimum diameter based on
the pen pressure, pen tilt, or position of the pen thumbwheel.
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