Apple Shake 4 - Manual (Page 638)

638 Chapter 23 Color Correction
Add
The Add node adds color to the R, G, B, A, or Z channel. Specifically, this node adds
color to black areas, including those beyond the image frame, in case you move the
image later. Any correction that occurs outside of the DOD can be corrected with the
SetBGColor node. Shake’s color is described in a range of 0 to 1, so adding -1, -1, -1
makes your image completely black. If you add the fifth value, depth, you effectively
add a Z channel with your add value to the image.
Parameters
This node displays the following controls in the Parameters tab:
Color
A color control that lets you pick a color to add.
alpha
Adds to or subtracts from the alpha channel.
depth
Adds to or subtracts from the Z channel.
Brightness
The Brightness node is simply a multiplier on the RGB channels. It differs from Fade in
that Fade also affects the alpha channel. For individual channel control, use Mult.
You can also use this node to convert your image to a single-channel alpha image by
using a brightness of 0.
Parameters
This node displays the following control in the Parameters tab:
value
A slider you use to specify the value to multiply the image by. This control
simultaneously multiplies the RGBA channels.