Apple Shake 4 - Manual (Page 867)

Chapter 28 Filters 867
Parameters
This node displays the following controls in the Parameters tab:
channels
Lets you set which channels Shake should blur. You can choose one or all of the red,
green, blue, or alpha channels. The default is “rgba.”
kernel
A pop-up menu that allows you to select any of the kernels included in the include/
nreal.h file, or wherever else you may have added convolution kernels of your own.
percent
A slider that lets you mix the modified image and the original image together to
produce a blend of both. By default, this parameter is set to 100 percent, resulting in
100 percent of the modified image being output.
absolute
Some filters return negative values. When absolute is enabled, these values are inverted
to produce positive values.