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Nodes · Color

FileLUT

Colorv1coreConcat: Pointwise

Overview

Applies a LUT file from disk (.cube, .spi) — a camera LUT or a show look.

How to

How-to

Point it at a .cube or .spi LUT; set colorspace_in / colorspace_out to the spaces the LUT expects, as the vendor's documentation says.
direction inverts a LUT that has an inverse; interpolation picks the sampling.
A LUT whose entries are all 1 1 1 is a broken export, and the node says so.

Inputs

Input	What it takes
in	the image this node works on
mask	limits the effect to this matte — the engine's universal mask slot, applied for every node that declares it

Outputs

Output	Type
out	Image

Parameters

Parameter	Type	Default	What it does
file	Text		The file on disk — use #### for frame numbers in a sequence.
colorspace_in	Choice	linear	The space the LUT expects its input in. The linear image is converted into it before the lookup; "linear" = no conversion. A shot LUT built on ACEScct wants ACEScct. `linearsRGBRec.709`
colorspace_out	Choice	linear	The space the LUT's output is in; converted back to linear after the lookup. `linearsRGBRec.709`
direction	Choice	forward	forward applies the LUT; inverse runs it backwards (exact for a 1D table; a 3D cube cannot be inverted by lookup). `forwardinverse`
interpolation	Choice	trilinear	How a cube is sampled between its nodes: trilinear (classic), tetrahedral (fewer hue twists on saturated colours), nearest. `trilineartetrahedralnearest`
mix	Float	1.0	Dissolves the effect back toward the input. 0 = off (bit-identical), 1 = full effect.
disabled	Bool	false	Bypass: the node passes its first input through untouched (D in the graph). The knobs keep their values for when it comes back.
label	Text		A note shown under the node in the graph — what this node is FOR. Never affects the render or the cache.
hide_input	Bool	false	Draw the node without its input wire — a tidy graph for a node whose source is obvious (a Dot, a viewer tap).