Apple Shake 4 - Manual (Page 825)

Chapter 27 Warping and Morphing Images 825
In some instances, you can create a more convincing effect using multiple source/
target shape pairs. In the following example, four source/target shape pairs are used to
create the effect of the lava flowing forward.
In this example, a single large shape is used to pull the entire outside shape of the lava
forward. An unbroken shape is usually best for warping the outer boundries of an
image, but this can sometimes create an unnatural stretching within the subject itself.
By adding individual source/target pairs within the lava image, the individual ripples
and eddies of the lava can be individually animated to achieve a more natural-
looking effect.
For more information about drawing and manipulating shapes, see “ Creating and
Modifying Shapes ” on page 830.
Multi-shape warp with OverallDisplacement at 0
Multi-shape warp with OverallDisplacement at 1