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The 3D Qualifier Chroma and Luma Adjustments
showing the colors selected in the Strokes List.
The Chroma and Luma adjustment section is dominated by the Color Space box and the Brightness
Range. The Color Space box is laid out roughly in the same manner as the Color Wheels, with primary
colors laid out around its edge. The exact colors and layout is determined by the Color Space that you
choose in the 3D Qualifier. The Brightness Range is represented as a bar underneath the Color Space,
with left being black and right being white. Inside the Color Space and Brightness Range lie the
individual colors that you chose with the pickers in the Strokes List. The tools around the periphery
adjust the colors within the box in various ways, allowing you to visualize changes to the key.
The 3D Qualifier Chroma & Luma Adjustments:
Chroma Tolerance: Click and drag left and right to expand or contract the range of colors
selected by the key.
Chroma Softness: Click and drag left and right to change the sensitivity to similar colors
selected by the key. This determines whether the key is a hard cutoff or a soft selection of
similar colors.
Adaptive Chroma Softness: Activating this icon allows the keyer to operate consistently in
both highly saturated and desaturated regions of the image at the same time. The majority of
the time you will want to leave this on. The exception is If you are having difficulty in manually
adjusting chroma softness in Soft or Flat mode, then turning Adaptive Chroma Softness off
will give you more range to work with. Adaptive Chroma Softness is automatically disabled in
Tight and Luma modes, as it is contrary to the functionality of these modes.
X: Moves your selected color region within the color space, changing its chroma based on
its horizontal position.
Y: Moves your selected color region within the color space, changing its chroma based on
its vertical position.
Angle: Moves your selected color region within the color space, changing its chroma
based on its rotation around the central origin point.
Low: Expands or contracts the dark areas of the key in the brightness range.
High: Expands or contracts the bright areas of the key in the brightness range.
Low Soft: Controls how well defined the low end of the brightness range is. This
determines whether the key is a hard cutoff or a soft selection of similar brightness levels.
High Soft: Controls how well defined the high end of the brightness range is. This
determines whether the key is a hard cutoff or a soft selection of similar brightness levels.
Chapter 133Secondary Qualifiers 2664
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