Adobe Photoshop CC 2014 v.14.xx - Manual (Page 598)

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Mode
Opacity
Flow
Airbrush
Auto erase
Tablet pressure buttons
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4. Set tool options for mode, opacity, and so on, in the options bar.
5. Do one or more of the following:
Click and drag in the image to paint.
To draw a straight line, click a starting point in the image. Then hold down Shift, and click an ending point.
When using the Brush tool as an airbrush, hold down the mouse button without dragging to build up color.
Paint tool options
Set the following in the options bar. Options available vary with each tool.
Sets the method for blending the color you paint with the underlying existing pixels. Available modes change with the currently selected
tool. Paint modes are similar to layer blending modes. See Blending modes .
Sets the transparency of color you apply. As you paint over an area, the opacity does not exceed the set level no matter how many times
you move the pointer over the area, until you release the mouse button. If you stroke over the area again, you apply additional color, equivalent to
the set opacity. Opacity of 100 percent is opaque.
Sets the rate at which color is applied as you move the pointer over an area. As you paint over an area, keeping the mouse button down,
the amount of color builds up based on the flow rate, up to the opacity setting. For example, if you set the opacity to 33% and the flow to 33%,
each time you move over an area, its color moves 33% toward the brush color. The total will not exceed 33% opacity unless you release the
mouse button and stroke over the area again.
Press a single number key to set a tool’s opacity in multiples of 10% (pressing 1 sets it to 10%; pressing 0 sets it to 100%). Press two number
keys to set a specific opacity. To set Flow, press Shift and number keys.
Simulates painting with an airbrush. As you move the pointer over an area, paint builds up as you hold down the mouse button. Brush hardness,
opacity, and flow options control how fast and how much the paint is applied. Click the button to turn on or off this option.
(Pencil tool only) Paints the background color over areas containing the foreground color. Select the foreground color you want to
erase and the background color you want to change to. (See Auto Erase with the Pencil tool.)
Use stylus pressure to override opacity and size settings in the Brush panel.
Selecting a cursor preference
The painting tools have three possible cursors: the standard cursor (the icon from the toolbox), a cross hair , and a cursor that matches the size
and shape of the currently selected brush tip.
1. Choose Edit > Preferences > Cursors (Windows) or Photoshop > Preferences > Cursors (Mac OS).
2. Select the desired cursors in both the Painting Cursors area and the Other Cursors area. The sample cursors change to reflect your choices.
For a Brush Tip cursor, choose a size and whether to include a cross hair in the cursor.
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