User Guide

Table Of Contents
Customizing Brushes 215
Source, Opacity, and Grain Settings
The Source setting specifies the media that is applied by the brush variant. Source
applies only to some dab types, such as Line Airbrush, Projected, and Rendered. Refer
to “Painting with Color” on page 149 for more information about setting a media
source.
Corel Painter brushes use one of the following source types:
Color applies primary or secondary color.
Gradient applies the current gradient across the length of the stroke.
Gradient Repeat applies the current gradient repeatedly along the stroke.
Pattern paints with a pattern containing no mask information.
Pattern With Mask paints with a pattern limited by the pattern’s mask.
Pattern As Opacity paints a pattern in which the luminance of the pattern becomes
the opacity of the stroke.
The Opacity slider determines how Corel Painter should vary the density of the media
being applied. It sets the maximum opacity of the selected brush. The opacity of an
Airbrush variant is often set to be determined by stylus pressure. Heavier pressure
produces more opaque strokes. You can use the Expressions settings on the Stroke
Designer page to link opacity to stylus or mouse data.
The Grain slider determines the maximum amount of paper texture that Corel Painter
should reveal in a brush stroke. Some default variants have their grain component
determined by pressure. Increasing pressure causes the pencil to “dig into” the paper.
You can use the Expressions settings on the Stroke Designer page to link grain to
stylus or mouse data. You can also use the paper’s brightness and contrast settings to
control brush–grain interaction. For more information, see “Using Paper Texture” on
page 113.
To choose a media source
1 On the Stroke Designer page of the Brush Creator, click General.
2 Choose a source from the Source pop-up menu.
To set brush opacity
1 On the Stroke Designer page of the Brush Creator, click General.
2 Move the Opacity slider to the left to reduce opacity, or to the right to increase
opacity.