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                <h1>
                    Brush shape dynamics
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                <div><div class="section"><p>Shape dynamics determine the variance
of brush marks in a stroke.</p>
<div class="fignone"><img alt="" id="pa_13" src="images/pa_13.png" /><div class="figdesc">Brush stokes without shape dynamics and with shape dynamics</div><br /></div><dl><dt class="dlterm">Size Jitter and Control</dt>
<dd>Specifies how
the size of brush marks vary in a stroke. For more information,
see <a href="WSfd1234e1c4b69f30ea53e41001031ab64-77faa.html">Adding brush dynamics</a>. <p>To specify the maximum percentage
of jittering, type a number or use the slider to enter a value.
To specify how you want to control the size variance of brush marks,
choose an option from the Control pop‑up menu:</p>
<dl><dt class="dlterm">Off</dt>
<dd>Specifies no control over the size variance of brush marks. </dd><p class="dlseparator"></p><dt class="dlterm">Fade</dt>
<dd>Fades the size of brush marks between the initial diameter
and the minimum diameter in the specified number of steps. Each
step is equal to one mark of the brush tip. The value can range
from 1 to 9999. For example, entering 10 steps produces a fade in
10 increments.</dd><p class="dlseparator"></p><dt class="dlterm">Pen Pressure, Pen Tilt, Stylus Wheel</dt>
<dd>Varies the size of brush marks between the initial diameter
and the minimum diameter based on the pen pressure, pen tilt, or
position of the pen thumbwheel. </dd><p class="dlseparator"></p></dl>
</dd><p class="dlseparator"></p><dt class="dlterm">Minimum Diameter</dt>
<dd>Specifies the minimum percentage by which brush marks can
scale when Size Jitter or Size Control is enabled. Type a number,
or use the slider to enter a value that is a percentage of the brush
tip diameter.</dd><p class="dlseparator"></p><dt class="dlterm">Tilt Scale</dt>
<dd>Specifies the scale factor applied to the height of the brush
prior to rotation when Size Control is set to Pen Tilt. Type a number,
or use the slider to enter a value that is a percentage of the brush
diameter.</dd><p class="dlseparator"></p><dt class="dlterm">Angle Jitter and Control</dt>
<dd>Specifies how
the angle of brush marks varies in a stroke. To specify the maximum
percentage of jittering, enter a value that is a percentage of 360
degrees. To specify how you want to control the angle variance of
brush marks, choose an option from the Control pop‑up menu:<dl><dt class="dlterm">Off</dt>
<dd>Specifies no control over the angle variance of brush marks. </dd><p class="dlseparator"></p><dt class="dlterm">Fade</dt>
<dd>Fades the angle of brush marks between 0 and 360 degrees
in the specified number of steps. </dd><p class="dlseparator"></p><dt class="dlterm">Pen Pressure, Pen Tilt, Stylus Wheel, Rotation</dt>
<dd>Varies the angle of brush marks between 0 and 360 degrees
based on the pen pressure, pen tilt, position of the pen thumbwheel,
or rotation of the pen. </dd><p class="dlseparator"></p><dt class="dlterm">Initial Direction</dt>
<dd>Bases the angle of brush marks on the initial direction of
the brush stroke.</dd><p class="dlseparator"></p><dt class="dlterm">Direction</dt>
<dd>Bases the angle of brush marks on the direction of the brush
stroke.</dd><p class="dlseparator"></p></dl>
</dd><p class="dlseparator"></p><dt class="dlterm">Roundness Jitter and Control</dt>
<dd>Specifies
how the roundness of brush marks varies in a stroke. To specify
the maximum percentage of jittering, enter a percentage indicating
the ratio between the brush’s short and long axes. To specify how
you want to control the roundness variance of brush marks, choose an
option from the Control pop‑up menu:<dl><dt class="dlterm">Off</dt>
<dd>Specifies no control over the roundness variance of brush
marks. </dd><p class="dlseparator"></p><dt class="dlterm">Fade</dt>
<dd>Fades the roundness of brush marks between 100% and the Minimum Roundness
value in the specified number of steps.</dd><p class="dlseparator"></p><dt class="dlterm">Pen Pressure, Pen Tilt, Stylus Wheel, Rotation</dt>
<dd>Varies the roundness of brush marks between 100% and the
Minimum Roundness value based on the pen pressure, pen tilt, position
of the pen thumbwheel, or rotation of the pen. </dd><p class="dlseparator"></p></dl>
</dd><p class="dlseparator"></p><dt class="dlterm">Minimum Roundness</dt>
<dd>Specifies the minimum roundness for brush marks when Roundness
Jitter or Roundness Control is enabled. Enter a percentage indicating the
ratio between the brush’s short and long axes.</dd><p class="dlseparator"></p></dl>
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