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– White: White control points are neither selected nor locked, and will be stretched or squished
when adjacent control points are moved.
Unlocked control points
between a selected point and
locked points (in this case the
corners of the grid) will squish
and stretch to warp an entire
range of color as you drag.
While control points work much the same in either the Hue-Saturation or Choma-Luma modes,
there are some important differences. The radial “spokes” of the Hue-Saturation wheel don’t
influence neighboring spokes, so any adjustment you make to a control point on one spoke only
affects the colors that fall between it and the two neighboring spokes that surround it. This means
it’s not necessary to lock control points on neighboring spokes of this wheel-shaped grid to
prevent them from changing.
Adjustments made to control
points on one “spoke” of the
Hue-Saturation wheel grid don’t
affect those on neighboring
spokes, which act as if they’re
locked, even though they’re not.
Both the Hue-Saturation and Chroma-Luma warper grids lock the outer boundary of the grid. You can
still drag these points to adjust them, but they can’t be unlocked and they won’t move automatically
when you adjust other control points. The Hue-Saturation grid has an additional point locked right in
the center, which keeps the neutral colors (black through gray and white) neutral.
TIP: Dragging the locked center point of the Hue-Saturation grid lets you alter the color of the
white point, while proportionally warping all other colors in the image to smoothly
accommodate this change. This can be the starting point of a lot of different looks.
Chapter 132Color Warper 2634
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