Adobe After Effects CS3 Manual de usuario descargar pdf (Pagina 422)

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101

AFTER EFFECTS CS3

User Guide

417

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

Transform effect

The Transform effect applies two-dimensional geometric transformations to a layer. This effect supplements the

transform properties available for each layer in the Timeline panel. Anchor Point, Position, Rotation, Scale, and

Opacity properties function much the same as the layer transform properties in the Timeline panel.

You can specify the shutter angle for motion blur for this layer independently of the composition’s shutter angle.

(Motion blur must be enabled for the layer and for the composition for this to be relevant.)

Note: This effect is relative to the input layer. Therefore, to make a layer rotate around the upper left corner, open the

layer in the Layer panel, choose Transform from the Layer panel menu, and then move the anchor point and the position

to the upper left corner.

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

Skew Skew amount.

Skew Axis The axis about which skew occurs.

See also

“Use motion blur” on page 200

Turbulent Displace effect

The Turbulent Displace effect uses fractal noise to create turbulent distortions in an image. For example, use it to

create flowing water, funhouse mirrors, and waving flags.

This effect works with 8-bpc, 16-bpc, and 32-bpc color.

Displacement The type of turbulence used. Turbulent Smoother, Bulge Smoother, and Twist Smoother each

perform the same operations as Turbulent, Bulge, and Twist, except that the Smoother options create smoother

warps and take longer to render. Vertical Displacement warps the image vertically only. Horizontal Displacement

warps the image horizontally only. Cross Displacement warps the image both vertically and horizontally.

Amount Higher values cause more distortion.

Size Higher values cause larger areas of distortion.

Offset (Turbulence) Determines the portion of the fractal shape that is used to create the distortion.

Complexity Determines the level of detail in the turbulence. Lower values cause smoother distortions.

Evolution Animating this setting results in changes of the turbulence over time.

Note: Although the Evolution value is set in units called revolutions, it’s important to realize that these revolutions are

progressive. The Evolution state continues to progress infinitely at each new value. Use the Cycle Evolution option to

return the Evolution setting to its original state at each revolution.

Evolution Options EvolutionOptionsprovidecontrolsthatrendertheeffectforoneshortcycleandthenloopitfor

the duration of the layer. Use these controls to prerender turbulence elements into loops, and thus speed up

rendering time.

• Cycle Evolution Creates a loop that forces the Evolution state to return to its starting point.

• Cycle The number of revolutions of the Evolution setting that the fractal cycles through before it repeats. The

timing of the Evolution cycles is determined by the amount of time between Evolution keyframes.

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Adobe After Effects CS3 Manual de usuario Pagina 422

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