Adobe After Effects CS3 - Manual (Page 422)

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 Evolution Options provide controls that render the effect for one short cycle and then loop it for
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.