Apple MA434Z/A User Manual - Page 763

26 Transformations, Motion Blur, and 26 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. 763