User Manual

3 Next, attach the key output of the Key Mixer node to the key input of the node you
want to use to make the correction. Remember, the objective is to use the key that’s
output by the Key Mixer to limit the adjustment being made using another node, in this
caseNode 3.
Setting up the node tree you’ll need to combine two keys together
Keep in mind, especially since this is a significant reordering of nodes in the Node
Editor, that every node needs to be connected properly for the overall grade to work.
4 Now that the node structure is fully connected, use windows, qualifiers, or both
to create keys in each of the nodes that you connected to the Key Mixer. In this
example, Node 2 is isolating the main skin tone, and Node 5 is isolating the blue of his
jeans and hood.
By default, all keys connected to the Key Mixer are added together, as you can see in
the Key Mixer’s thumbnail.
Combining multiple keys with the Key Mixer
If you wanted, you can use the controls in the Key palette to change this, in order to
isolate the intersection of two keys, or to subtract one key from another. This is covered
in the next section.
5 Continuing with the previous setup where both keys are added together by default,
selecting Node 3 and dropping the saturation to be very faint stylizes the entire
background, while leaving the various hues of the man we’ve isolated alone.
Chapter – 126 Combining Keys and Using Mattes 2869