Adobe Photoshop CS3 Uživatelský manuál stáhnout pdf (Strana 344)

100

101

PHOTOSHOP CS3

User Guide

337

See also

“Brushes palette overview” on page 332

“Create a brush and set painting options” on page 334

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 336.

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.

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