User Manual

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Ultra Keyer [UKY]
The UltraKeyer node
Ultra Keyer Node Introduction
Like the newer Delta Keyer, the Ultra Keyer node has two keyers built in to it: a pre-matte keyer
acts as a garbage matte creator and the color difference keyer that extracts fine detail and
transparency. Generally, you start with the Delta Keyer as your first keyer of choice. If you do
not get good results, try Primatte if you are using Fusion Studio. A good third choice is to try the
Ultra Keyer.
Inputs
The Ultra Keyer node includes four inputs in the Node Editor.
Input: The orange input accepts a 2D image that contains the color you want to be
keyed for transparency.
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.
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.
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.
Basic Node Setup
A single 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 Ultra Keyer node has the blue-screen content
connected to the orange input. The result is an image with Alpha that can then be connected
into the foreground of a Merge node.
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