Graphics Programs Reference
In-Depth Information
parent foreground pixels. The Alpha channel of the output image is not affected by
this option.
Factor
The factor input field (
Fac
) decides the amount of mixing of the bottom socket. A
factor of
0.0
does not use the bottom socket, whereas a value of
1.0
makes full use.
In
Mix
mode, 50:50 (
0.50
) is an even mix between the two, but in
Add
mode,
0.50
means that only half of the second socket's influence will be applied.
The following screenshot shows outputs from all the described Mix modes without
altering the inputs connected to the top and bottom nodes:
The Gamma node
An overall gamma correction can be made to the final result using the Gamma node.
This correction helps to alter the lighting information in the result.
Tip
The gamma value in this node is the gamma correction value. Gamma correction
= 1/gamma.
