User Manual

Here are some examples of what the Gamut Mapping controls of RCM can be used for:
 If you’re working with high-dynamic-range log-encoded media and you’re outputting
to Rec. 709 as you work, turning on Gamut Mapping lets RCM use saturation and tone
mapping to give you a more immediately pleasing image with highlight detail that’s
notclipped.
 If you’re working with standard-dynamic-range log-encoded media and you’re
outputting to an HDR format as you work, turning on Gamut Mapping lets RCM use
saturation and tone mapping to expand the highlights of the image to HDR strength to
give you an image with more immediate visual impact on HDR screens.
(Before/After) Gamut Mapping used to automatically fit high-
dynamic-range media into the Rec. 709 color space
Here are the various gamut mapping settings that are available in the Color Management panel
of the Project Settings:
 Timeline to Output Tone Mapping: Accommodates workflows where you need to
transform one color space into another with a dramatically larger or smaller color space
by automating an expansion or contraction of image contrast in such a way as to give a
pleasing result with no clipping.
There are three options, None, Simple, and Luminance Mapping. Choosing
“Simple” uses a static S-curve to perform this transformation as it compresses or
expands the highlights and/or shadows of the timeline dynamic range to fit the
output dynamic range, and automatically populates the value of the Max.
TimelineLuminance field that guides this transform. Choosing “Luminance
Mapping” actually uses a customized curve operation to precisely map the timeline
dynamic range to the output dynamic range, and automatically populates the value
of the Max. Timeline Luminance control that guides this transform, but leaves it
user-adjustable in case you want to customize the result.
Chapter – 7 Data Levels, Color Management, and ACES 227