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As we continue to explore Photoshop 7's new
Brushes palette, we'll look in this column at the Texture and
Dual Brush panes.
TEXTURE

Rather than a texture like those applied with
the filter Texture> Texturizer, the Texture option in the
Brushes palette applies a pattern to your stroke. Any pattern
available in the Pattern picker for the command Edit> Fill or
for the Paint Bucket is also available as a brush texture.

The Pattern picker menu enables you to load sets
of patterns. Some of the patterns found in the set Artist
Surfaces are especially appropriate for use as brush textures.
You can invert the pattern by checking the box
to the right of the pattern sample. Inverting reverses the
grayscale values of the pattern.
The next image shows the additional options
available for texturing a brush. At the bottom are samples of
the pattern Dark Coarse Weave at a variety of scale factors.
From the left, the pattern is scaled to 15%, 30%, 50%, 100%,
150%, and 200%. The maximum scale factor is 1000%.

The Mode and the various Depth options are only
available when Texture Each Tip is selected. The Texture Each
Tip option applies the pattern individually to each instance of
the brush tip. Rather than treating the brush stroke as a whole,
this option treats each application of the brush tip separately.
In this image, a single instance of the brush tip is shown to
the upper-right. The pattern for the brush texture is Burlap.

The upper example show how Photoshop applies a
pattern to a stroke as a whole. Below, Texture Each Tip is
activated. Note the areas of overlap from instance to instance.
The pattern is applied over itself.
There are several options available for Texture
Each Tip:
• MODE - The blending modes available for Texture are Multiply,
Subtract, Darken, Overlay, Color Dodge, Color Burn, Linear Burn,
Hard Mix. The blending mode affects how the overlapping brush
instances interact, as well as how the brush itself interacts
with other colors already on the layer. Note that the Hard Mix
blending mode is only available in the Texture and Dual Brush
panes of the Brushes palette. Each of the brush's component
color values is compared to the existing color on the layer. If
the brush's component color is darker, the existing color is
darkened. If it's lighter, the existing color is lightened.
• DEPTH - Depth looks at the texture as a three
dimensional object, with the light and dark areas representing
high and low points. Changing the Depth setting alters what
grayscale values are affected. At 0%, the pattern is completely
eliminated. At 100% Depth, the texture is reproduced normally.
• MINIMUM DEPTH - Used in conjunction with Depth
Jitter, this slider restricts the lowest jitter value.
• DEPTH JITTER - This slider regulates the
amount of variation in depth over the course of the stroke. At
0%, there is no variation and the Depth slider determines the
appearance of the brush. The Control options are discussed at:
http://www.planetphotoshop.com/PeteBauer74.html
DUAL BRUSH

The Dual Brush option adds another brush tip to
the tip selected in Brush Presets or Brush Tip Shape. The second
tip is overlaid using the blending mode at the top of the Dual
Brush pane of the Brushes palette. The Dual Brush pane is a
cross between the Brush Tip Shape and Scattering panes. In
addition to selecting the second brush tip and blending mode,
you adjust the second tip for diameter, spacing, scatter, and
count.
You can use Dual Brush to add a texture to a
brush (upper example) or to add a custom brush within a shape
defined by the initial brush tip (lower example).
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