Apple Shake 4 - Manual (Page 763)

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Transformations, Motion Blur, and
AutoAlign
Shake’s transformation nodes provide many ways to
geometrically manipulate the position, size, and
orientation of images in your composition. The
parameters within these nodes can also be animated—
either manually or using expressions—to create motion
and accompanying motion-blur effects.
About Transformations
Shake has a wide variety of nodes that can be used to create various kinds of
transformations. Many of the transformation nodes—found in the Transform Tool tab—
perform simple operations, such as pan, rotate, scale, shear, and corner-pin (four-corner
warping). These nodes are all linear operations, and turning on motion blur for these
nodes results in realistic blur for any parts of the image affected by animated transform
parameters.
The Transform tab also contains nodes that perform changes in resolution, including
the Resize, Viewport, Window, and Zoom nodes. These nodes are covered in more detail
in “
Controlling Image Resolution ” on page 180.
The Move2D and Move3D nodes are the most flexible operators, since they include
most of the parameters contained in the simple transform nodes. The processing
requirements are the same whether you use a Move2D or a Pan node to move an
image, since the Pan operation is simply a macro of the Move2D node. Given this
choice, however, you’ll find that using the Move2D node for multiple transformations is
more efficient than simultaneously applying Pan, Rotate , and Scale nodes one after the
other, due to the way Shake handles the internal computations.
Because Shake has an Infinite Workspace, effects are not clipped when they move in
and out of frame with a second operation. For more information, see “
Taking
Advantage of the Infinite Workspace ” on page 405.