Apple Shake 4 - Manual (Page 497)

Chapter 18 Compositing With the MultiPlane Node 497
Thus, you can set up animated MultiPlane composites using multiple MultiPlane nodes,
instead of connecting all your images to a single MultiPlane node. For example, you
might set up a composite using three different MultiPlane nodes—one for background
layers, one for midrange layers, and one for foreground layers. This way you can apply
separate color correction and Defocus nodes to the output of each sub-composite.
In the above example, one of the foreground image sequences has a matching 3D
tracking point cloud that has been imported into the MultiPlane1 node. For this
composition to work, you need to link the cameras in all three MultiPlane nodes
together.
To link a camera in one MultiPlane node to a camera in another:
1 Load a MultiPlane node into the Parameters tab.
2 Open the Camera tab.
3 Click the Link button, at the bottom of the Camera tab.