Adobe PHOTOSHOP 5.0 User Manual page 209

To create a custom brush shape:
Select part of an image to use as a custom brush.
1
The brush shape can be up to 1000 pixels by 1000
pixels in size. To be most effective, the shape
should appear on a solid white background. If you
want to define brushes with soft edges, select brush
shapes composed of pixels with gray values.
(Colored brush shapes appear as gray values.)
2 Choose Define Brush from the Brushes
palette menu.
3 Double-click the newly created brush in the
Brushes palette to open the Brush Options
dialog box.
4 Specify Spacing as described in the next section.
To make the brush placement more accurate,
5
make sure that Anti-aliased is selected. Then
click OK.
See "Softening the edges of a selection" on
page 147 for information on anti-aliasing.
Note: The Anti-aliased option is not available for
large brushes.
Pear painted with custom
brush shown in inset
Setting brush options
You can define a number of options for the default
brushes and any brushes you create. For custom
brushes, only the spacing and anti-aliased options
can be changed.
To set brush options:
Do one of the following:
1
Double-click the brush you want to edit.
•
In the Brushes palette, select the brush you
•
want to edit, and choose Brush Options from the
palette menu.
Set the options for Diameter, Hardness,
2
Spacing, Angle, and Roundness. Then click OK.
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User Guide