Corel Painter X3 Win/Mac, EDU, EN User's Guide download pdf (Page 344)

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101

Adjusting brushes with brush controls 321

You can switch between the different preview modes by clicking in the

preview window.

Calibrating brush variants

When you draw with traditional media, the amount of pressure that you use with a tool

determines the density and width of your strokes. Using a pressure-sensitive stylus with

Corel Painter gives you this same kind of control. Because each artist uses a different

strength or pressure level in a stroke, you can calibrate individual brush variants to

match your stroke strength.

The most common way of adjusting brush calibration is to apply a typical brush stroke,

such as a wavy stroke, to the scratch pad. Corel Painter then uses your stroke to

calculate the appropriate pressure and velocity settings for the brush variant.

For example, you can set less pressure when sketching with a pencil brush variant, but

set more pressure when using an oil paint brush variant. Corel Painter saves Brush

Calibration control settings with the brush variant, so whatever sensitivity you set will

be the default the next time you choose the brush variant. If you set Brush Calibration

for a specific brush in addition to general Brush Tracking preferences, the Brush

Calibration settings override the Brush Tracking preferences. For more information,

see “Brush tracking and calibration” on page 115.

When you use the scratch pad to set brush calibration, Corel Painter calculates the

pressure and velocity settings for you. However, you can manually adjust these settings.

For example, you can adjust the stroke pressure to achieve a full pressure range

(Pressure Scale slider) using a softer or harder touch (Pressure Power slider). You can

also adjust the stroke velocity to achieve a full velocity range (Velocity Scale slider) with

a slower or faster stroke (Velocity Power slider).

To ensure that a brush control is using the pressure or velocity settings, you need to set

the brush control Expression setting to Pressure or Velocity. For more information,

see “Expression settings” on page 317.

To calibrate a brush variant

1 With a brush variant selected, choose Window  Brush Control Panels  Brush

Calibration.

2 Enable the Enable Brush Calibration check box.

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Corel Painter X3 Win/Mac, EDU, EN User's Guide Page 344

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