Specifications
92 Chapter 6 Using Compositions
NESTING COMPOSITIONS A composition may be used inside other compositions. This can be applied in 
a hierarchical fashion to build complex animations one step at a time. This 
example shows how to build a four cylinder car as a composition, starting by 
creating a single cylinder from still image parts.
Still image components.
Preview of the PistonLoop 
composition.
Composition timeline to make one 
full revolution of the engine.
◆ NOTE: Select “Lock Duration” in 
the “Timeline Settings” dialog box 
of the composition, and set its 
duration to one second (see “Lock 
Duration” on page 154).










