Corel Painter X3 Win/Mac, EDU, EN Podręcznik Użytkownika Strona 359

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336 Corel Painter X3 Getting Started Guide
Grain controls
Grain lets you control the amount of paper texture that brushstrokes reveal. You can set
the level of grain that you want to reveal (Grain slider). You can also use the
Expression settings to link grain to various stylus or mouse movements. For more
information, see “Expression settings” on page 317. For example, you can link grain to
pressure. Increasing pressure causes the pencil to “dig into” the paper and produce a
grainier brushstroke.
You can also adjust the Min setting to specify the range of variability that you want the
expression to apply. The Min Grain setting represents a percentage of the Grain setting
and it must be linked to an expression to have an effect. For example, if you choose the
Pressure expression on the Grain panel, set the Grain slider to 100% and set the Min
Grain slider to 10%, the amount of grain revealed will vary from 10% to 100% every
time you apply pressure during a brushstroke.
Normally, when you make a brushstroke, the paper grain is fixed. Strokes repeated over
an area bring out the same grain, but you can specify to randomly move the paper grain
for each dab of each stroke (Random Brush Stroke Grain and Grain Jitter).
Brushstrokes with Random Brush Stroke Grain disabled (top) and enabled
(bottom)
In addition, you can use the paper’s brightness and contrast settings to control brush–
grain interaction. For more information, see “Working with paper texture and grain” on
page 133 and “Expression settings” on page 317.
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