User Manual

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Using the Key Palette

For example, the Key Input Invert control is always enabled when you add an Outside node,

which is why the Outside node applies adjustments to the inverse area of the previous node.

If you turn this control off, that node’s key will exactly mirror the original key being fed to it from

the previous node.

The controls that are available in the Key palette vary depending on what kind of node you

have selected:

 Corrector Nodes: Have three sets of parameters. Key Input parameters let you make

adjustments to keys being fed through a node’s Key Input connection. The Key Output

parameters let you make adjustments to the key data being output by a node’s Key

Output connection, and includes the incredibly powerful Offset Gain parameter that

governs the strength of that node’s contribution to the overall grade. Finally, the

Qualifier parameters let you make adjustments to the internal key created with the HSL

Qualifier or Window controls. This functionality is covered more extensively in the next

section.

 Ext Mattes: Have two sets of parameters. Transform parameters let you make

geometric transformations to a matte so it fits the clip it’s being applied to better. An

Offset control lets you slip the sync between an external matte and the clip to which it’s

applied. This functionality is covered in the section on external mattes.

 Key Mixer Nodes: Have two sets of parameters that are dependent on which of the

connections attached to a Key Mixer’s key inputs is selected. Input parameters let you

adjust how much of a contribution a key makes to the total key mix, and whether the

contribution is additive or subtractive.

The Output parameters let you adjust the inversion and strength of the key that’s output by the

Key Mixer. This functionality is described more extensively in the Key Mixer section.

Layer Mixer and Parallel Mixer nodes have no adjustable controls in the Key palette.

Using the Key Palette to Affect Corrector Nodes

When you open the Key palette for a selected Corrector node, you can adjust the

followingparameters:

Key palette showing controls when a node is selected

Chapter – 126 Combining Keys and Using Mattes 2873