Apple Shake 4 - Manual (Page 783)

Chapter 26 Transformations, Motion Blur, and AutoAlign 783
The element remains static, but the blur is still applied as if it were moving.
For a lesson on this subject, see Tutorial 4, “Working With Expressions,” in the Shake 4
Tutorials book.
The AutoAlign Node
The AutoAlign node is unique among the various transform nodes in that it can take
multiple image inputs and combine them into a single output, similar to a layering
node. This node is designed to take two or three images or image sequences that
overlap, and align them in different ways to create a single, seamless output image.
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