Blend modes that manipulate alpha channels, Blend modes that, Manipulate alpha channels – Apple Motion 2 User Manual
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Chapter 3
Basic Compositing
Exclusion
Similar to the Difference blend mode, except that the resulting image is lighter overall.
Overlapping areas with lighter color values are lightened, while darker overlapping
color values become transparent.
The order of two objects affected by the Exclusion blend mode does not matter.
Blend Modes That Manipulate Alpha Channels
The Stencil and Silhouette blend modes let you use a single object’s alpha channel or
luma values to isolate regions of background objects and layers.
Note: Similar effects can be accomplished using shape and image masks. In addition,
masks may provide you with a greater degree of control, depending on your needs. For
more information, see “
Stencil modes crop out all nonoverlapping parts of objects underneath the object used
as the stencil. Silhouette modes do the opposite, punching holes in overlapping
objects underneath in the shape of the object used as the silhouette.
Stencil Alpha
The Stencil Alpha blend mode uses the alpha channel of the affected layer to crop out
all nonoverlapping parts of objects and layers underneath it in the Layers list.
Object used for stencil
End result
Object underneath
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