Apple Shake 4 - Manual (Page 774)

774 Chapter 26 Transformations, Motion Blur, and AutoAlign
Onscreen Controls Across Multiple Transformations
If you apply multiple transformations to an image, all downstream onscreen controls
are transformed along with the image. This lets you accurately visualize that control’s
effect on the image.
Note: This is also true for the onscreen controls of other nodes, like the RGrad and
Text nodes.
In the following example, an RGrad node is connected to a CornerPin node. The
CornerPin node is used to place the RGrad in perspective.
In the screenshot above, the image output by the CornerPin node is loaded in the
Viewer, but the parameters of the RGrad node above it are loaded in the Parameters tab.
As a result, the RGrad controls inherit the perspective shift from the CornerPin node.
Displaying Multiple Versions of the Same Control
If you create a node tree where several versions of the same node are visualized,
transform controls are displayed for each copy of the node. This can be used to your
advantage, to provide you with multiple perspectives of the same control, allowing for
precise manipulation of the image.