Apple MA434Z/A User Manual - Page 847

addBorderShape A button that allows you to use the border of the image as a control shape to limit the warping effect. By default this parameter is turned on, and is the recommended setting for most cases. Turning this control off results in each source/target pair having a considerably more exaggerated effect on the image, and may necessitate the use of additional boundary shapes to control the effect. overSampling An integer value that represents the number of samples per pixel that are taken into account when performing a warp. This parameter is set to 1 by default, which results in faster rendering times. However, extreme warping effects may introduce aliasing artifacts that can be reduced or eliminated by increasing this value, up to a maximum value of 4. Increasing this parameter may cause render times to increase dramatically. Note: Although the slider is limited to a range of 1 to 4, you can enter larger values into this parameter's value field. • dodPad: A subparameter of overSampling. This slider lets you pad the DOD around the image affected by the Warper node by 0 to 100 pixels. The Warper node tries to automatically calculate a new DOD for the affected image, but in certain instances the resulting DOD may be too small. In these instances, the dodPad parameter lets you expand an incorrectly calculated DOD to avoid clipping. shape1Name In this example, the shape1Name parameter represents the source shape. Additional controls in all shape parameters allow you to turn the shape on or off, make the shape itself visible or invisible in the Viewer, lock the shape to prevent any further changes to it, or delete the shape. shape2Name In this example, the shape2Name parameter represents the target shape. Each target shape has a corresponding shapeName parameter. connection1Name Connection parameters represent both connection lines that connect source shapes to target shapes, and boundary shapes that you've defined. Deleting a connection parameter deletes either the corresponding connection line, or turns a boundary shape back into an unassigned shape. • connection1Displacement: This subparameter of the connection1Name parameter defines the amount of displacement that is applied to the source/target shape pair defined by the connection1Name parameter. Each source/target shape pair has its own corresponding connectionDisplacement parameter, allowing you to animate each warp independently for a more organic, natural look. By default, each connectionDisplacement parameter is linked to the overallDisplacement parameter, so that they all animate together. Chapter 27 Warping and Morphing Images 847