Type
Selects the LUT file format to write.
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Color ManagementAdvanced
LUTCubeAnalyzer
Generate LUT files from a Fusion color transform
Analyzes a color-processing chain and writes the resulting transform as ALUT3, CUBE or 3DL LUT data.
LUTCubeAnalyzer
DaVinci Resolve · Fusion
LUTCubeAnalyzer samples the color transformation produced by a Fusion chain and exports that transformation as a LUT file for reuse elsewhere.
Overview
What LUTCubeAnalyzer does
The node works by evaluating a representative color cube through the intended processing chain. The result can then be written in common LUT formats such as CUBE or 3DL.
Only transforms that can be meaningfully represented by a 3D LUT should be captured. Spatial effects, masks, local contrast, blur, grain and other position-dependent operations cannot be reproduced faithfully by a LUT.
The exported LUT should always be tested against the original color chain on multiple images before it becomes part of a production pipeline.
Mental model
Think of it as measuring a color pipeline and saving the measured RGB-in to RGB-out relationship into a portable lookup table.
Common uses
Bake a reusable creative look
Export a Fusion color transform
Create CUBE/3DL files
Move a look between applications
Archive a repeatable global color mapping
Flow anatomy
Inputs & outputs
The port structure shows how this node fits into a Fusion graph.
Input / Processed Color Cube
Source image for the operation.
LUTCubeAnalyzer
Fusion node
Output
The processed result from this node.
Inspector
Important parameters
Start with these controls before reaching for more complicated workarounds.
Filename
Sets the destination LUT filename.
Browse
Chooses a file path interactively.
Write File
Analyzes the transform and writes the LUT.
ALUT3
Writes the ALUT3 format when selected.
CUBE
Writes the widely supported .cube format.
3DL
Writes a .3dl LUT format.
Practical setup
A reliable workflow
- 1
Build only the global color operations you want to capture.
- 2
Place LUTCubeAnalyzer so it sees the final color mapping.
- 3
Choose the file Type and Filename.
- 4
Write the LUT.
- 5
Apply the exported LUT to several test images and compare it with the original chain.
Typical node chain
Color Transform→
LUTCubeAnalyzer→
Portable LUT File
Examples
Where this node fits in real work
Bake a creative look
Convert a global grading stack into a portable CUBE file.
Test ImageColor Transform ChainLUTCubeAnalyzerCUBE File
Pipeline handoff
Export a transform for another tool that supports 3D LUTs.
Fusion LookLUTCubeAnalyzer3DL/CUBEExternal Application
Troubleshooting
Common mistakes
Trying to bake grain, glow, masks or spatial operations into a LUT.
Exporting without testing out-of-gamut and skin-tone behavior.
Using an undocumented input/output color space.
Production notes
Practical tips
Document the expected input and output color spaces beside the LUT.
Validate with ramps, saturated colors and real footage.
Prefer a larger LUT size when precision matters and the target system supports it.
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