User Manual

Inputs
The Matte Control node includes four inputs in the Node Editor.
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Background: The orange background input accepts a 2D image that receives the
foreground image Alpha channel (or some other channel you want to copy to the
background).
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Foreground: The green foreground input accepts a 2D image that contains an Alpha
channel (or some other channel) you want to be applied to the background image.
–
Garbage Matte: The gray garbage matte input accepts a mask shape created by
polylines, basic primitive shapes, paint strokes, or bitmaps masks. Connecting a
mask to this input causes areas of the foreground/background combination that fall
within the matte to be made transparent.
–
Solid Matte: The white solid matte input accepts a mask shape created by polylines,
basic primitive shapes, paint strokes, or bitmaps masks. Connecting a mask to this
input causes areas of the foreground/background combination that fall within the
matte to be fully opaque.
–
Effect Mask: The optional blue input expects a mask shape created by polylines,
basic primitive shapes, paint strokes, or bitmaps masks. Connecting a mask to this
input limits the pixels where the matte control occurs. An effects mask is applied to
the tool after the tool is processed.
Basic Node Setup
Below, the Matte Control node is set up to copy the foreground (green) input’s Alpha channel
into the background (orange) input. The output of the Matte Control is then an image with an
Alpha channel used as the foreground composite in the Merge node.
A Matte Control embedded an Alpha from the foreground input to the background input
Chapter – 98 Matte Nodes 2166