Apple Shake 4 - Manual (Page 87)

Chapter 1 An Overview of the Shake User Interface 87
There may be cases, however, where you want to take advantage of the DOD for
masking purposes. In this tree, an image is scaled down, and the brightness increased
with an Add node. This, however, turns the area outside of the image a medium gray.
Since this area is recognized as outside of the DOD, it can be returned to black with a
Color–SetBGColor node, which sets the color for the area outside of the DOD.
The Layer–Constraint node also limits a process. For more information on masking
using the Constraint node, see Chapter 19, “
Using Masks ,” on page 527.
Building Move2D1
Add1 SetBGColor1