Apple Motion 4 - Manual (Page 1389)

Some operations, as well as 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. This affects
how the rasterized group interacts with other objects in the project.
This appendix covers the following:
• Groups and Rasterization (p. 1389)
• Text and Rasterization (p. 1392)
• Shapes and Rasterization (p. 1393)
• Particles and Rasterization (p. 1393)
• Replicators and Rasterization (p. 1395)
• Filters and Rasterization (p. 1397)
• Shadows and Rasterization (p. 1399)
Groups and Rasterization
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. When a 3D group is rasterized, the group as a whole can no longer intersect
with objects outside of the group. The rasterized 3D group is treated as a single object
and uses layer order (in the Layers tab), rather than depth order when composited in the
project.
For more information on layer order versus depth order, see Layer Order and Depth Order .
Note: When a group is rasterized, cameras and lights in the project still interact with
objects within the rasterized group.
Important: Lighting in a 2D group does not pass beyond the boundaries of that 2D group,
whether it is rasterized or not.
The following operations on a 2D group trigger the rasterization of that group:
• Making Blending changes (to the Opacity, Blend Mode, or Preserve Opacity parameters)
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About Rasterization
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