User Guide

Corel Painter 155
• Pattern with Mask—paints with a
pattern limited by the pattern’s
mask.
• Pattern as Opacity—the
Luminance of the pattern becomes
the opacity of the stroke.
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.
Opacity
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. More pressure yields more
opaque strokes. Use the Expressions
settings on the Stroke Designer page
to tie Opacity to stylus or mouse data.
To set brush opacity:
1 On the Stroke Designer page of
the Brush Creator, click General.
2 Move the Opacity slider left to
reduce opacity. Move it right to
increase opacity.
Grain
The Grain slider determines the
maximum amount of paper texture
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. Use the
Expressions settings on the Stroke
Designer page to tie 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 61.
To set grain:
1 On the Stroke Designer page of
the Brush Creator, click General.
2 Move the Grain slider left to
reduce the penetration into the
grain. Move it right to increase the
penetration.
More grain is visible with lower
settings.
Setting Size Controls
The Size brush feature determines
how Corel Painter varies the width of
the brush stroke. The range from
minimum to maximum is determined
by Size and Min Size sliders in the
Size area of the Stroke Designer page.
Preview
The Preview window in the Size area
of the Stroke Designer page shows
how your changes affect the brush
dab. Clicking in the Preview window
lets you toggle between “hard” and
“soft” views of the dab.
The Preview supports only hard and
soft views of dab based brushes.