User Manual

Table Of Contents
Unlike the Custom curves, which default to a diagonal position where lower left represents the
black point and upper right represents the white point, Hue and Sat curves are flat. In the case
of the Hue vs. Hue/Sat/Lum curves, the horizontal range of the curve from left to right
represents the overall range of possible hues, from red through green through blue and then
cycling back to red.
Because the range of hues cycle smoothly from the left to the right edge, changes that affect
the curve near the left boundary of these curves loop smoothly around to the right boundary,
and vice versa, such that the left and right sides of the curve always move together (as you can
see in the above screenshot).
IMPORTANT When using Hue curves, the range of hue that you isolate with control
points is always relative to the RGB input connected to that node. That means if you
change the hue of a shirt from blue to red using Hue vs. Hue and you then want to
raise the same shirt’s saturation with the Hue vs. Sat curve within the same node, you
need to add control points to the same range of blue for both curves.
Image Sampling for Hue and Sat Curves
There’s an additional way to use Hue curves in DaVinci Resolve. Whenever one of the Hue vs.
Hue, Hue vs. Sat, Hue vs. Lum, Lum vs. Sat, or Sat vs. Sat curve tabs are open, clicking or
clicking and dragging over any range of pixels within the Viewer area samples the hues and/or
image tonality of that region of the picture, and automatically places three control points on the
currently open curve that correspond to the range of color and contrast you sampled. This also
works if you use the cursor from the DaVinci control panel with the fourth trackball to sample a
range of color.
Additional Controls in the Hue and Sat Curves
While the Hue vs. Hue, Hue vs. Sat, Hue vs. Lum, Lum vs. Sat, and Sat vs. Sat curves can be
adjusted similarly to the Custom curves, they have additional controls running underneath the
curve graph.
Enable Bezier button: Turning this button on forces a curve to use Bezier control
handles, rather than the default DaVinci Resolve Curve Control points, to manipulate
each control point on the curve. With Bezier handles enabled, click any control point
to reveal its two Bezier handles. Drag either handle to alter the shape of the curve at
that control point.
Six-Vector Color Patches: The Hue curves each have six buttons for automatically
adding control points to manipulate the red/yellow/green/cyan/blue/magenta ranges
of hue. Clicking any of these buttons adds three control points; two to define the
outer range of hue to be adjusted, and a middle control point that you use to make
the adjustment.
Input and Output (Hue Rotate/Saturation/Lum) fields: These two number fields
correspond to the horizontal and vertical adjustment values for the currently selected
control point. Click any control point on a curve to view or alter these values. The label
of the second field depends on the curve that’s selected.
The following sections describe each available curve in more detail.
Chapter – 118 Curves 2688