Apple Shake 4 - Manual (Page 993)

Chapter 32 The Cookbook 993
Relief Macro
In the following, Example 1 has affect set to image1; the other two are set to image2.
Key Macros
These macros help you further manipulate keyed images.
AlphaClamp Macro
This macro clamps the alpha channel to 0 and 1. This is helpful for float images and
when pulling LumaKeys, as you can arrive at negative values that can have unwanted
effects in your RGB channels. This macro is unnecessary for 8- or 16-bit images.
Example 1: affect = image1
Example 2: affect = image2
Example 3: Relief + IDisplace