Apple Motion 3 - Manual (Page 627)

Chapter 7 Using Text 627
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
text is set to the Add blend mode. The text interacts with the object beneath it in the
layer stack.
In the next illustrations, the group that contains the text and upper leopard image is
rasterized. The rasterization is triggered in this case by turning on the Crop parameter
in the Property tab of the group. The text’s Add blend mode and the leopard image’s
Multiply blend mode no longer interact with the object beneath it (the lower leopard
image) in the layer stack. Notice that the group icon for the rasterized group now
appears with a frame around the icon (the icon immediately to the left of the “Group -
titles” group.
The titles groups is not rasterized. The text and upper leopard image blend modes
interact with the group beneath it in the
project.
The titles group is rasterized, indicated by the
frame around the group icon. The text and upper image modes no longer
interact with the group beneath it in the
project.