Other dynamics determine how paint changes
over the course of a stroke.

Brush strokes without paint dynamics (left) and with paint
dynamics (right)
- Opacity Jitter
and Control
-
Specifies
how the opacity of paint varies in a brush stroke, up to (but not
exceeding) the opacity value specified in the options bar. To specify
a percentage by which the opacity of the paint can vary, type a
number or use the slider to enter a value. To specify how you want
to control the opacity variance of brush marks, choose an option
from the Control pop‑up menu:
- Off
-
Specifies no control over the opacity variance of brush marks.
- Fade
-
Fades the opacity of paint from the opacity value in the
options bar to 0, in the specified number of steps.
- Pen Pressure, Pen Tilt, Stylus Wheel
-
Varies the opacity of paint based on the pen pressure, pen
tilt, or the position of the pen thumbwheel.
- Flow Jitter and Control
-
Specifies how
the flow of paint varies in a brush stroke, up to (but not exceeding)
the flow value specified in the options bar.
To specify a
percentage by which the flow of the paint can vary, type a number
or use the slider to enter a value. To specify how you want to control
the flow variance of brush marks, choose an option from the Control
pop‑up menu:
- Off
-
Specifies no control over the flow variance of brush marks.
- Fade
-
Fades the flow of paint from the flow value in the options
bar to 0 in the specified number of steps.
- Pen Pressure, Pen Tilt, Stylus Wheel
-
Varies the flow of paint based on the pen pressure, pen tilt,
or position of the pen thumbwheel.