Bristle Controls

Bristles create the look of a real brush stroke, complete with the striations that hairs on a real brush make. Use the controls in the Bristle area of the Stroke Designer page to design the many individual bristles in a single brush dab.

The best place to see the effect of the Bristle sliders is on the Brush Control palettes. If you open the Bristle and Size sections, you can click in the preview window of the Size section to show the "soft" view of the dab. The bristled dab changes as you move bristle control sliders in the Bristle section. For more information about Size controls, see "Size Controls" on page 216.

If you choose Rake as the stroke type, you can adjust brush scale and contact angle in the Rake area of the Stroke Designer page. For more information on the Rake controls, refer to "Rake Controls" on page 231.

The Thickness slider controls the diameter of separate bristles.

The Thickness slider controls the diameter of the individual bristles. Settings shown are 17% (left) and 87% (right).

The Clumpiness slider applies a random variance to the thickness of each bristle, which makes some of the bristles look like they are clumping together. Clumpiness is proportional to Thickness.

The Clumpiness slider controls how bristles "clump together." Settings shown are 0% (left) and 100% (right).

The Hair Scale slider controls the density of bristles in the brush dab and, therefore, the number of bristles in the dab.

The Hair Scale slider controls the density of bristles in the brush dab. Settings shown are 410% (top) and 990% (bottom).

The Scale/Size slider controls the degree of Size variation applied to the bristles of a brush. At 0%, there is no size change applied to the bristles. Setting this slider to a value greater than 0% creates a set of scaled iterations of the dab.

At a Scale/Size setting of 100%, when the brush size changes, the bristles scale in proportion to the size. At a Scale/Size setting of 8%, when the brush size changes, the bristles remain a constant absolute size. The Scale/Size control is invalid if a size range is not specified (that is, if Size Min is set to 100%).

The Scale/Size slider controls the degree of Size variation applied to a bristle set. Settings shown are 0% (top) and 100% (bottom).

To set bristle thickness

1 On the Stroke Designer page of the Brush Creator, click Bristle.

2 Move the Thickness slider to the left to reduce the density of the medium left by the stroke. Move it to the right to increase brush density.

When the slider is moved fully to the left, the brush will leave a faint stroke — even if Opacity is set to 100%.

To set clumping of bristles

1 On the Stroke Designer page of the Brush Creator, click Bristle.

2 Move the Clumpiness slider to the left to reduce bristle clumping. Move it to the right to increase bristle clumping.

To set bristle density

1 On the Stroke Designer page of the Brush Creator, click Bristle.

2 Move the Hair Scale slider to the left to reduce the amount of bristle density and create a fine-hair brush. Move it to the right to increase density.

To scale bristles according to brush size

1 On the Stroke Designer page of the Brush Creator, click Bristle.

2 Move the Scale/Size slider to the left to reduce the degree of size variation. Move it to the right to increase size variation.

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