User manual APPLE SHAKE 4

[. . . ] Shake 4 User Manual Apple Computer, Inc. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of Apple. Your rights to the software are governed by the accompanying software license agreement. The Apple logo is a trademark of Apple Computer, Inc. , registered in the U. S. [. . . ] This makes it easier to manipulate a shape's transform control even when the image is scaled down by a large ratio. rotoControlScale A slider that allows you to change the default size of all transform controls in the Viewer when rotoAutoControlScale is turned on. 545 Note: You can also resize every transform control appearing in the Viewer by holding the Command key down while dragging the handles of any transform control in the Viewer. rotoTransformIncrement This parameter allows you to adjust the sensitivity of shape transform controls. When this parameter is set to lower values, transform handles move more slowly when dragged, allowing more detailed control. At higher values, transform handles move more quickly when dragged. A slider lets you choose from a range of 1-6. The default value is 5, which matches the transform control sensitivity of previous versions of Shake. rotoPickRadius This parameter provides the ability to select individual points on a shape that fall within a user-definable region around the pointer. This allows you to easily select points that are near the pointer that may be hard to select by clicking directly. A slider allows you to define how far, in pixels, the pointer may be from a point to select it. rotoTangentCreationRadius This parameter lets you define the distance you must drag the pointer when drawing a shape point to turn it into a Bezier curve. Using this control, you can make it easier to create curves when drawing shapes of different sizes. For example, you could increase the distance you must drag to avoid accidentally creating Bezier curves, or you can decrease the distance you must drag to make it easier to create Bezier curves when drawing short shape segments. Using the RotoShape Node The RotoShape node can create multiple, spline-based shapes that can be used as an alpha channel for an element, or to mask a layer or an effect. You can only create closed shapes with the RotoShape node. Shapes created using the RotoShape node are grayscale, and filled shapes are white against a black background. An alpha channel is automatically created, and has exactly the same data as the R, G, and B channels. For a shape to have an effect on the alpha channel, it must be filled. Shapes that are filled with white create solid areas in the alpha channel. Shapes that are filled with black create areas of transparency. Unfilled shapes have no effect on the alpha channel. 546 Chapter 20 Rotoscoping Why Use the RotoShape Node Instead of the QuickShape Node? The RotoShape node is a newer, faster, more flexible, and more able rotoscoping tool that replaces the QuickShape node. The RotoShape node has the following advantages over the QuickShape node: · You can create multiple shapes within the same node. · You can have a soft-edge falloff on each shape that can be modified independently on each control point. · You can make one shape cut a hole into another. [. . . ] Also, both CPUs are enabled for a 2-processor computer. 1028 Appendix A The Shake Command-Line Manual Animating Parameters shake truck. iff -pan "cos(time*. 5)*100" "sin(time)*50" motion . 5 1 -t 1-13 shake bg. iff -rotate "cos(time*. 5)*50+25" -t 1-13 motion . 5 1 Substituting Values with -curve Description Uses the cos and sin functions to animate the truck in a figure eight. If you have the following in a script called myscript. shk: Text1 = Text(720, 486, 1, {{ stringf("myVal = %d %s" myVal, slatestring); }}, "Utopia Regular" 100, xFontScale, , , 1, width/2, height/2, 0, 2, 2, 1, 1, 1, 1, 0, 0, 0, 45); you substitute values in with the -curve option: shake -curve int myInt 5 -curve string slatestring "SuperSlate" -script myscript. shk and you get a nice image that says "myVal = 5 SuperSlate" . Or you can use: shake -curve int myVal 5 -curve string slatestring "SuperSlate" -text 720 486 1 ' :stringf(\\\"myVal = %d\\n%s\\\" myVal, slatestring ) ; ' , Note the extra backslashes: This quotes it once for the shell and then again for Shake. The shell sees \\ and makes it \ then \" and makes it " so you get a result of \" going into the Shake wrapper script, that is then passed properly into the Shake executable. Whew. Tips The following section contains tips and tricks for command-line usage. [. . . ]