Adobe After Effects CS3 Manual de usuario descargar pdf (Pagina 545)

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101

AFTER EFFECTS CS3

User Guide

540

Original (top left), and with effect applied (bottom left and right)

Thegradientlayercanbeastillimageoramovingimage.Thegradientlayermustbeinthesamecompositionasthe

layer to which you apply Gradient Wipe.

You can create gradient layers in many ways, such as using the Ramp effect or creating them in Photoshop or

Illustrator.

Transition Softness The degree to which the transition is gradual for each pixel. If this value is 0%, pixels in the layer

to which the effect is applied are either completely opaque or completely transparent. If this value is greater than 0%,

pixels are semitransparent at the intermediate stages of the transition.

Gradient Placement How the gradient layer’s pixels are mapped to the pixels of the layer to which the effect is

applied:

• Tile Gradient Uses multiple tiled copies of the gradient layer.

• Center Gradient Uses a single instance of the gradient layer in the center of the layer.

• Stretch Gradient To Fit Resizes the gradient layer horizontally and vertically to fit the entire area of the layer.

Invert Gradient Inverts the gradient layer’s influence; lighter pixels in the gradient layer create transparency at a

lower Transition Completion value than do darker pixels.

Iris Wipe effect

The Iris Wipe effect creates a radial transition that reveals an underlying layer. Specify the number of points used to

create the iris using a range of 6 to 32 points, and specify whether an inner radius is used. If Use Inner Radius is

selected, you can specify values for both Inner Radius and Outer Radius; the iris isn’t visible if Outer Radius, Inner

Radius, or both are set to 0. The iris is roundest if both Outer Radius and Inner Radius are set to the same value.

TheIrisWipeeffectistheonlyTransitioneffectthatdoesn’thaveaTransitionCompletionproperty.Toanimatethe

Iris Wipe effect to expose the underlying layers, animate the Radius properties.

This effect works with 8-bpc and 16-bpc color.

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Adobe After Effects CS3 Manual de usuario Pagina 545

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