User Guide

The Brush Creator164
The Scale/Size slider controls the degree of Size
variation applied to a bristle set.Top=0%,
bottom=100%.
To scale bristles according to
brush size:
1 On the Stroke Designer page of
the Brush Creator, click Bristle.
2 Move the Scale/Size slider to the
left to reduce the degree of size
variation. Move it right to increase
size variation.
Expression Settings
Corel Painter lets you control brush
effects along the stroke based on a
number of real-time input factors. For
example, many brushes vary their
Opacity or Size in response to changes
in stylus pressure. This is merely their
default setting. You can use the
Expression settings on the Stroke
Designer page to vary these effects in
response to other factors, like stroke
direction or velocity.
Expression settings are linked to
individual controls on the Stroke
Designer page. These are: General,
Size, Angle, Well, Random, Impasto,
Airbrush, and Liquid Ink.
To choose an Expression setting:
1 On the Stroke Designer page of
the Brush Creator, click a control
that contains Expression settings.
2 Choose one of the following
options from the Expression pop-
up menu:
• None — applies no adjustment
to the brush feature
• Velocity — adjusts the brush
feature based on the dragging
speed. Dragging quickly will
minimize the setting; dragging
slower increases it.
• Direction — adjusts the
selected brush feature based on
the direction of the stroke
• Pressure — adjusts the brush
feature based on stylus pres-
sure. Greater pressure increases
the setting for that brush fea-
ture.
• Wheel — adjusts the brush fea-
ture based on the wheel setting
on an airbrush stylus, specifi-
cally the Intuos Airbrush stylus.
The maximum value is set
when the wheel is pushed all
the way forward. The mini-
mum is set when the wheel is
pushed all the way back.
• Tilt — adjusts the brush fea-
ture based on the angle of the
stylus from the tablet. For
example, when the stylus is
perpendicular to the tablet, Tilt
=0.
• Bearing — adjusts the brush
feature based on the direction
in which the stylus points
• Source — adjusts the brush
feature based on the luminance
of the clone source. Higher
luminance (closer to white)