User Manual

RGB Mixer Palette
The RGB Mixer palette lets you remix different amounts of image data from one channel to
another, and has a wide variety of creative and utilitarian uses. Furthermore, the RGB Mixer can
be used either to remix the color channels, or to add different proportions of each color channel
into a monochrome image.
By default, the RGB Mixer palette is set to mix any amount of the Red, Green, and Blue color
channels into any of the other channels. Each color channel has a dedicated control group of
Red, Green, and Blue sliders that you use to do the mixing, and the default values of these can
be seen in the screenshot above.
RGB Mixer palette
Each slider has an overall range of –2.00 to +2.00. This means that you also have the option of
subtracting any combination of color channel values from a particular channel. For example, you
can lower the Red control group’s Green slider to –.24 to subtract 24 percent of the Green
channel from the Red channel.
Preserve Luminance
With the “Preserve Luminance” checkbox turned on, any channel adjustment you make is
prevented from altering the luma of the image by automatically raising or lowering the other two
channels to compensate. In the following example, you can see that when “Preserve
Luminance” is turned on, lowering the Green control group’s Green slider results in the Red and
Blue channels being raised by the same amount (as seen in the Parade scope). Conversely,
raising a color channel’s slider ends up lowering the other two channels by the same amount to
keep overall image luminosity the same.
The result of an RGB Mixer adjustment with “With luminance level preserved” turnedon.
You can see that lowering the green channel slider also raises red and blue.
Chapter – 117 Primary Grading Controls 2667