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Chapter 14. Complex Projects > Recursive Switches

Recursive Switches

By default, controls for nested compositions operate recursively. That is, setting a switch for a nested composition also sets the switch for the layers nested within it. These switches include Collapse Transformations/Contin u ously Rasterize and Quality. The composition's Resolution, Enable Motion Blur setting, and Enable Frame Blending setting also operate recursively.

Usually recursive switches can save you time and effort. For example, by simply choosing a resolution for a nested composition, you instantly change the resolution for all the layers within it. At times, however, recursive switches can result in unwanted changes. In a complex project, for example, you might enable Collapse Transformations for a nested composition. If the nested composition contains yet another composition, its Collapse Transformations switch will be enabled, as well. As a result, you may unintentionally bypass necessary masks and effects. Similarly, recursive switches would prevent you from enabling Motion Blur selectively in a series of nested compositions. As a rule, use recursive switches. If using a switch has unintended consequences, disable recursive switches.


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