Apple Shake 4 - Manual (Page 182)

182 Chapter 5 Compatible File Formats and Image Resolutions
Note: This method works even when compositing a pure black plate generated with
the Color node.
In the following example, a 320 x 240 black frame is created with an Image–Color node.
The resolution of the foreground and background elements is set to 320 x 240 by
assigning the background clipMode in the second Over node.
Crop the Frame using the Crop, Window, or Viewport Nodes
The following three nodes, located in the Transform tab, crop the frame without scaling
and filtering the pixels.
• Crop: Arbitrarily supplies the lower-left and upper-right corners, and cuts into the
frame at those coordinates. Also turns off the Infinite Workspace.
• Window: Supplies a lower-left coordinate, and then the image’s resolution. Cuts off
the Infinite Workspace.
• Viewport: Same as Crop, except it maintains the Infinite Workspace. This is useful for
setting resolutions in preparation for later use of onscreen controls, as the controls
are always fitted to the current resolution.
In the following example, a Crop node is attached, with the Crop parameters set
manually to 244, 92, 700, and 430. These settings return a 456 x 338 resolution (this is
completely arbitrary). Notice the onscreen control you can use to adjust the resolution
manually.
Tree Background, 720 x 486 Foreground, 640 x 480