User Manual

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Background Input: The green (optional) input accepts a 2D image layered as the
background in the composite. If no image is connected, Primatte outputs the keyed
foreground. Connecting an image to the background input activates Primatte’s
advanced edge blending options.
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Replacement Image: The magenta (optional) input accepts a 2D image used as a
source of Primatte’s spill suppression color correction.
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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 image that fall within the matte to be made
transparent. The garbage matte is applied directly to the Alpha channel of the image.
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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 image that fall within the matte to be fully opaque.
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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 keying occurs. An effects mask is applied to the tool
after the tool is processed.
NOTE: Connecting the background input without connecting the replacement image
input uses the background image as the replacement image surf spill suppression.
Basic Node Setup
A single Primatte keyer can rarely get perfect results because most green- or blue-screen shots
have problems the keyer is not made to handle. Keyers often need the help of garbage mattes
or solid mattes created with a Polygon or B-Spline node. Shots can also require more than just
one keyer to achieve perfect results. Below, the Primatte node has the blue-screen content
connected to the orange input. Unlike other Fusion nodes, the foreground gets connected to
the orange input. The result is an image with Alpha that can then be connected into the
foreground of a Merge node.
A Primatte node combined with a polygon matte as a garbage
matte and connected to the foreground of a Merge
Chapter – 98 Matte Nodes 2172