Adobe Photoshop CS4 - Manual (Page 351)

344 USING PHOTOSHOP CS4
Painting
Last updated 1/10/2010
More Help topics
“ Brushes panel overview ” on page 339
“ Create a brush and set painting options ” on page 340
Brush shape dynamics
Shape dynamics determine the variance of brush marks in a stroke.
Brush stokes without shape dynamics and with shape dynamics
Size Jitter and Control Specifies how the size of brush marks vary in a stroke. For more information, see “ Adding
brush dynamics ” on page 343.
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:
• Off Specifies no control over the size variance of brush marks.
• Fade 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.
• Pen Pressure, Pen Tilt, Stylus Wheel 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.
Minimum Diameter Specifies the minimum percentage by which brush marks can scale when Size Jitter or Size
Control is enabled. Type a number, or use the slider to enter a value that is a percentage of the brush tip diameter.
Tilt Scale Specifies the scale factor applied to the height of the brush prior to rotation when Size Control is set to Pen
Tilt. Type a number, or use the slider to enter a value that is a percentage of the brush diameter.
Angle Jitter and Control Specifies how the angle of brush marks varies in a stroke. To specify the maximum percentage
of jittering, enter a value that is a percentage of 360 degrees. To specify how you want to control the angle variance of
brush marks, choose an option from the Control pop-up menu:
• Off Specifies no control over the angle variance of brush marks.
• Fade Fades the angle of brush marks between 0 and 360 degrees in the specified number of steps.
• Pen Pressure, Pen Tilt, Stylus Wheel, Rotation Varies the angle of brush marks between 0 and 360 degrees based on
the pen pressure, pen tilt, position of the pen thumbwheel, or rotation of the pen.
• Initial Direction Bases the angle of brush marks on the initial direction of the brush stroke.
• Direction Bases the angle of brush marks on the direction of the brush stroke.