User Manual

Inspector
Controls Tab
The Controls tab includes options for loading a LUT and making adjustments to the gain, color
space, and Alpha channel, if one exists.
LUT File
This field is used to enter the path to the LUT file. Clicking the Browse button opens a file
browser window to locate the LUT file instead of entering it manually into the LUT File field.
Currently, this node supports LUTs exported from Fusion in .LUT and .ALUT formats,
DaVinci Resolve’s .CUBE format, and several 3D LUT formats. The node fails with an error
message on the Console if it is unable to find or load the specified file.
Pre-Gain:
This slider is a gain adjustment before the LUT being applied. This can be useful for pulling in
highlights before the LUT clips them.
Post-Gain
This slider is a gain adjustment after the LUT is applied.
Color Space
This menu is used to change the color space the LUT is applied in. The default is to apply the
curves described in the LUT to the RGB color space, but options for YUV, HLS, HSV, and others
are also available.
Pre-Divide/Post-Multiply
Selecting the Pre-Divide/Post-Multiply checkbox causes the image pixel values to be divided
by the Alpha values before applying the LUT, and then re-multiplied by the Alpha value after the
correction.
This helps to prevent the creation of illegally additive images, particularly around the edges of a
blue/green key or when working with 3D-rendered objects.
Settings Tab
The Settings tab in the Inspector is also duplicated in other LUT nodes. These common controls
are described in detail at the end of this chapter in “The Common Controls” section.
Chapter – 96 LUT Nodes 2090