Notch Reference Manual

Apply Colour LUT

Method

This Node applies a Colour Look Up Table to the Image.
Colour Look Up Tables (LUTs) are a method of transforming the colours of an image. They are used extensively in colour grading in post production. Notch supports the standard 3D LUT format of .cube, exported by the vast majority of colour grading packages.

Raw texture Processed texture
Example Nodegraph

Attributes

Name Description
Active Turn the effect on or off. Values < 0.1 will turn the effect off, and deferred rendering must be on.
Blend Amount Changes the opacity of the new effect over the original image.
Blend Mode (RGB) Change how the generated effect blends with the parent image RGB.
Blend Mode (Alpha) Change how the generated effect blends with the parent image alpha.
Cube LUT The imported .cube resource.
LUT Working Colour Space The colour space in which to apply the LUT. This should be matched to the space in which the LUT was authored.
  • Gamma 2.2 – convert the input colours to gamma 2.2 space before applying the LUT.
  • Linear – convert the input colours to linear space before applying the LUT.

Affect Channels

Select which of the RGBA colour channels are affected by the effect.

Inputs

Name Description Typical Node Input
Active Turn the effect on or off. Values < 0.1 will turn the effect off, and deferred rendering must be on. Envelope Modifier

Outputs

There are no outputs from this node.