Adobe Photoshop CC 2014 v.14.xx - Manual (Page 603)

Roundness
Hardness
Spacing
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Angled brushes create a chiseled stroke
Specifies the ratio between the brush’s short and long axes. Enter a percentage value, or drag the points in the preview box. A
value of 100% indicates a circular brush, a value of 0% indicates a linear brush, and intermediate values indicate elliptical brushes.
Adjusting roundness to compress a brush tip shape
Controls the size of the brush’s hard center. Type a number, or use the slider to enter a value that is a percentage of the brush
diameter. You can’t change the hardness of sampled brushes.
Brush strokes with different hardness values
Controls the distance between the brush marks in a stroke. To change the spacing, type a number, or use the slider to enter a value
that is a percentage of the brush diameter. When this option is deselected, the speed of the cursor determines the spacing.
Increasing the spacing makes the brush skip
While using a preset brush, press the [ key to decrease the brush width; press the ] key to increase the width. For hard round, soft round,
and calligraphic brushes, press Shift+[ to decrease the brush hardness; press Shift+] to increase the brush hardness.
Bristle tip shape options
For a video about bristle tips, see www.adobe.com/go/lrvid5009_ps_en
Bristle tips let you specify precise bristle characteristics, creating highly realistic, natural-looking strokes. Set the following brush tip shape
options in the Brush panel:
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