Lookup – Apple Shake 4 User Manual
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Chapter 23
Color Correction
rNGamma
Generally, this number is not touched. The .6 is an average of the response curves, and
may differ from stock to stock and even channel to channel. You can look it up on
Kodak’s website—see products/Film/Motion Picture Film, and then check the
characteristic curves.
rDGamma
The display gamma, according to Kodak, to compensate for the monitor lookup table.
This was set to neutralize the Cineon system’s standard monitor setting. Its inclusion
here is more of a heritage thing. It is highly recommended that you leave it at 1.7.
rSoftclip
The roll-off values on the white point. The default is 0, which gives a Linear break. By
increasing this value, the curve is smoothed.
Lookup
The Lookup node performs an arbitrary lookup on your image. It is extremely flexible,
allowing you to mimic most other color-correction nodes, and is generally much faster
than the ColorX node.
For information regarding the curve editor in Lookup, LookupHSV, and LookupHLS, see
Chapter 10, “
Parameter Animation and the Curve Editor
The Lookup is defined as a function f(x), where x represents the input color, ranging
from 0 to 1. As you draw the graph of this function, x is on the X axis, and f(x) is on the
Y axis.
Note: The Lookup node should not be used inside of macros.