Adobe Photoshop CS4 Manual de usuario descargar pdf (Pagina 235)

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USING PHOTOSHOP CS4

Retouching and transforming

Last updated 1/10/2010

Twirl Clockwise tool Rotates pixels clockwise as you hold down the mouse button or drag. To twirl pixels

counterclockwise, hold down Alt (Windows) or Option (Mac

OS) as you hold down the mouse button or drag.

Pucker tool Moves pixels toward the center of the brush area as you hold down the mouse button or drag.

Bloat tool Moves pixels away from the center of the brush area as you hold down the mouse button or drag.

Push Left tool Moves pixels to the left when you drag the tool straight up (pixels move to the right if you drag

down). You can also drag clockwise around an object to increase its size, or drag counterclockwise to decrease its size.

To push pixels right when you drag straight up (or to move pixels left when you drag down), hold down Alt (Windows)

or Option (Mac

OS) as you drag.

Mirror tool Copies pixels to the brush area. Drag to mirror the area perpendicular to the direction of the stroke (to

the left of the stroke). Alt-drag (Windows) or Option-drag (Mac

OS) to mirror the area in the direction opposite to

that of the stroke (for example, the

area above a downward stroke). Usually, Alt-dragging or Option-dragging gives

better results when you have frozen the area you want to reflect. Use overlapping strokes to create an effect similar to

a reflection in water.

Turbulence tool Smoothly scrambles pixels. It is useful for creating fire, clouds, waves, and similar effects.

Liquify tool options

In the tool options area of the dialog box, set the following options:

Brush Size Sets the width of the brush you’ll use to distort the image.

Brush Pressure Sets the speed at which distortions are made when you drag a tool in the preview image. Using a low

brush pressure makes changes occur more slowly, so it’s easier to stop them at exactly the right moment.

Brush Rate Sets the speed at which distortions are applied when you keep a tool (such as the Twirl tool) stationary in

the preview image. The higher the setting, the greater the speed at which distortions are applied.

Brush Density Controls how a brush feathers at the edge. An effect is strongest in the center of the brush and lighter

at the edge.

Turbulent Jitter Control how tightly the Turbulence tool scrambles pixels.

Reconstruct Mode Used for the Reconstruct tool, the mode you choose determines how the tool reconstructs an area

of the preview image.

Stylus Pressure Uses pressure readings from a stylus tablet. (This option is available only when you are working with

a stylus tablet.) When selected, the brush pressure for the tools is the stylus pressure multiplied by the Brush Pressure

value.

Distort an image

Note: If a type layer or a shape layer is selected, you must rasterize the layer before proceeding, making the type or shape

editable by the Liquify filter. To distort type without rasterizing the type layer, use the Warp options for the Type tool.

1 Select the layer you want to distort. To change only part of the current layer, select that area.

2 Choose Filter > Liquify.

3 Freeze areas of the image that you don’t want to alter.

4 Choose any of the liquify tools to distort the preview image. Drag in the preview image to distort the image.

5 After distorting the preview image, you can use the Reconstruct tool or other controls to fully or partially

reverse the changes or to change the image in new ways.

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