Apple Motion 3 - Manual (Page 772)

772 Chapter 9 Using the Replicator
About Rasterization and Groups
Some operations, as well the application of certain filters or a mask, cause a group to
be rasterized. When a group is rasterized, it is converted into a bitmap image. Because
all replicators live in groups, this affects how replicators interact with other objects
within your project.
Note: A replicator can be rasterized independently of the group in which it lives. This
affects how the replicator interacts with objects within its own group. For example,
applying a Circle Blur filter to a replicator causes the replicator to no longer intersect
with other objects in the same group. The same operations that cause a 3D group to
rasterize cause a 3D replicator to rasterize. To minimize this effect, apply the filter
directly to the replicator’s source object, or turn off 3D in the Replicator tab.
Rasterization affects 2D and 3D groups in different ways. When a 2D group is rasterized,
the blend modes on objects within the group no longer interact with objects outside of
the group. In the following illustrations, the nonrasterized 2D group that contains the
replicator is set to the Add blend mode. The replicator interacts with the group
beneath it in the layer stack.
The Elements group is not rasterized. The replicator blend mode interacts with the
group beneath it in the project.