Apple Motion 2 - Manual (Page 250)

250 Chapter 3 Basic Compositing
Combine
When a layer is set to Combine, each object is individually blended with all objects and
layers that appear underneath it in the Layers tab. In this example, the Swirls object is
set to Stencil Luma, and the Fishes object is set to Add.
With the enclosing layer set to Combine, the Swirls object stencils all other objects
underneath it, including the Gradient object in the bottom layer. The result is that all
objects are stenciled against the background color. The Fishes object is likewise added
to the combined stack of objects.
01112.book Page 250 Sunday, March 13, 2005 10:36 PM