Instruction Manual

1045
Groups and rasterization
Some operations, as well as the application of specic lters or a mask, cause a group to be
rasterized. When a group is rasterized, it is converted into a bitmap image. This aects how the
rasterized group interacts with other objects in the project.
Rasterization aects 2D and 3D groups in dierent ways. When a 2D group is rasterized, the
blend modes on objects in the group no longer interact with objects outside the group. When
a 3D group is rasterized, the group as a whole can no longer intersect with objects outside the
group. The rasterized 3D group is treated as a single object and uses layer order (in the Layers
list), rather than depth order when composited in the project. (For more information on layer
order versus depth order, see Layer order and depth order on page 915.)
When a group is rasterized, cameras and lights in the project still interact with objects in the
rasterized group.
Important: Lighting in a attened 3D group does not pass beyond the boundaries of that group,
whether 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)
•
Turning on the Drop Shadow parameter
•
Turning on the Four Corner parameter
•
Turning on the Crop parameter
•
Applying any lter
•
Adding a mask
•
Adding a light (if the 2D group the light is added to is nested in a 3D group)
The following operations on a 3D group trigger the rasterization of that group:
•
Making blending changes
•
Applying specic lters
For more information, see Filters and rasterization on page 1050.
•
Adding a light to a 3D project with the Flatten parameter enabled (in the Group Inspector)
About rasterization
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