<< Click to Display Table of Contents >> Navigation:  Nodes > Tasks > Color Management > LUT 3D

 

Purpose

 

To apply a LUT (1D LUT and/or a 3D LUT, or a shaper LUT)  to the incoming media.  The LUTs can either be generated in Mistika Boutique or in any other program.

The LUTs can be traditional 1D or 3D LUTs, or the newer "shaper LUT" (see below)

Note that this node will not render any images by itself. What it does is to provide the color transformation to posterior encoder nodes with render capabilities

 

Inputs

 

Inputs: Media files to be processed.

 

Outputs

 

Output: The input files with the defined LUTs applied.

 

 

Standard properties

 

Object Name

Color

Bypass

Lock

 

Node specific properties

 

 

Lut1Db,  Lut3D, Lut1Da:  LUTs to apply. If more than one LUT file is specified they are applied in order, with the 3DLUT in between, and the two 1DLUTs before (Lut1Db) and after (Lut1Da).  A common use is to use the second 1DLUT as the reverse of the first 1DLUT, to convert the gamma of the image to the intended gamma for the 3DLUT, then reverse it after applying the 3DLUT

Alternatively, using a single "shaper LUT" is also supported (rather than a standard 3DLUT). This particular LUT format provides the equivalent of the three transformations (1DLUT -> 3DLUT -> 1DLUT) in a single file (typically a .cube file, but it can have other extensions). This type is used in some HDR applications to map the input HDR color space to a normalized, perceptually uniform color space before applying the 3D LUT, and then applying the inverse of the original 1D LUT to return to the original dynamic range.

Output -> Scale, Offset, and Gamma: LUT3D modifiers for fine adjustments.

Output -> Use (Direct, Inverse, Input Direct, Input Inverse). Specifies whether the input parameters are applied directly or inversely. Inverse modes are normally only used to reverse the application of the same LUT in a previous node.

 

 

Developer reference (API Rest - node/LUT3D/property/[Property ID])