Adobe 65008009 - After Effects CS4 Using Manual page 480

Last updated 12/21/2009
Mask properties
Determines the area of the image in which mask opacity and feather settings affect the distortion.
Freeze Area Mask
Areas outside the mask are distorted; areas within the mask are distorted according to Mask Opacity and Mask Feather
settings.
Determines how the distortion affects the area within the mask. If Mask Opacity is set to 100%, the
Mask Opacity
distortion doesn't affect the area within the mask; if it's set to 50%, the area within the mask is somewhat affected. If
you set Mask Opacity to 100%, make sure to feather the mask to prevent jagged edges on the mask.
The width of the feather used to blend pixels between the masked area and the nonmasked area.
Mask Feather
Tools
Pushes pixels forward as you drag.
Warp
Smoothly scrambles pixels. This setting is useful for creating fire, clouds, waves, and similar effects.
Turbulence
Rotates pixels clockwise as you hold down the mouse button or drag.
Twirl Clockwise
Twirl Counterclockwise
Moves pixels toward the center of the brush area as you hold down the mouse button or drag.
Pucker
Moves pixels away from the center of the brush area as you hold down the mouse button or drag.
Bloat
Moves pixels perpendicular to the stroke direction.
Shift Pixels
Copies pixels to the brush area.
Reflection
Copies the distortions from around a source location to the current mouse location. Set the source location
Clone
by Alt-clicking (Windows) or Option-clicking (Mac OS) the source point.
Reverses distortions or applies them in different ways.
Reconstruction
Distort an image with the Liquify effect
Select the layer, and choose Effect > Distort > Liquify.
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2 In the Layer panel, create a mask to freeze areas of the image, and then set mask properties.
In the Effect Controls panel do the following:
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• Choose the mask you created from the Freeze Area Mask pop-up menu.
• Specify a brush size and brush pressure. A low brush pressure makes changes occur more slowly, so it's easier to
stop them at exactly the right moment.
• Specify a turbulent jitter to control how tightly the Turbulence tool scrambles pixels.
• Select View Mesh under the View Options control.
• Set a distortion mesh offset if desired.
• Drag the Distortion Percentage slider to specify the amount of distortion.
Use the tools to distort the preview of the image.
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Use the Reconstruction tool
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Undo distortions with the Liquify effect
Use the Reconstruction tool and its modes to reverse distortions or redo them in new ways.
Select the Reconstruction tool, and then choose a mode from the Reconstruction Mode pop-up menu:
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Changes unfrozen areas back to their predistorted state.
Revert
Rotates pixels counterclockwise as you hold down the mouse button or drag.
to fully or partially reverse the distortions or to change the image in new ways.
USING AFTER EFFECTS CS4
Effects and animation presets
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