Controls
Holds the node controls for LUT application.
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Color ManagementAdvanced
LUTCubeApply
Apply a 3D LUT cube inside Fusion
Applies LUT-cube data to an image for technical or creative color transformation.
LUTCubeApply
DaVinci Resolve · Fusion
LUTCubeApply maps input RGB values through a LUT cube, making it suitable for calibrated technical transforms, show looks and reusable creative mappings.
Overview
What LUTCubeApply does
The LUT itself defines the mapping, but correct results also depend on feeding it the color space and gamma it was designed to receive. A good LUT used in the wrong pipeline can look completely wrong.
Alpha should normally be treated separately from RGB unless the specific workflow requires otherwise. Blending is useful for creative looks, but technical transforms are usually expected at full strength.
Use LUTCubeApply together with controlled input/output color management rather than treating every LUT as a self-contained fix.
Mental model
Think of the LUT cube as a 3D map of RGB coordinates: every input color looks up a corresponding output color.
Common uses
Apply a show LUT
Apply a technical camera/display transform
Reuse an exported Fusion look
Preview look-development LUTs
Build LUT-based finishing chains
Flow anatomy
Inputs & outputs
The port structure shows how this node fits into a Fusion graph.
Input
Source image for the operation.
LUT / Cube Data
Input used by LUTCubeApply.
LUTCubeApply
Fusion node
Output
The processed result from this node.
Inspector
Important parameters
Start with these controls before reaching for more complicated workarounds.
LUT Cube / Transform Table
Provides the 3D mapping used to convert RGB values.
Input preparation
Ensures the source enters the LUT in its expected color space and gamma.
Output interpretation
Defines how the transformed result should be interpreted downstream.
Alpha handling
Controls whether alpha is preserved independently of RGB.
Blend / Result Mixing
Sets how much of the LUT-processed result is mixed back with the original image.
Settings
Provides standard Fusion processing settings.
Practical setup
A reliable workflow
- 1
Confirm the LUT’s intended input color space.
- 2
Prepare the source accordingly.
- 3
Apply the LUT cube.
- 4
Interpret or convert the output into the next pipeline space.
- 5
Compare against a known reference before using the LUT in production.
Typical node chain
Input RGB→
LUT Cube→
Mapped RGB
Examples
Where this node fits in real work
Creative look
Apply a look LUT after normalizing the source.
MediaInColorSpaceTransformLUTCubeApplyMediaOut
Analyzer round trip
Apply a LUT previously generated from a Fusion color chain.
MediaInLUTCubeApplyReference Comparison
Troubleshooting
Common mistakes
Applying a LUT to log or display-referred material it was not designed for.
Blending a technical transform and changing its intended colorimetry.
Forgetting to preserve alpha.
Production notes
Practical tips
Keep LUT filenames tied to documented input/output spaces.
Use split-screen comparisons against the source transform.
Do gamut management around the LUT when required.
Related nodes