LUT File
Path to the external LUT file.
Use a LUT designed for the image's actual input color space and gamma.
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Color & ChannelsIntermediate
FileLUT
External LUT application
Loads an external LUT file and applies it to the image with pre/post gain and optional premultiplied-alpha handling.
FileLUT
DaVinci Resolve · Fusion
FileLUT is the direct way to apply a compatible lookup table inside Fusion for technical transforms, preview looks or stylized color treatment.
Overview
What FileLUT does
FileLUT is the direct way to apply a compatible lookup table inside Fusion for technical transforms, preview looks or stylized color treatment.
Mental model
A LUT is a predefined color mapping table: FileLUT takes incoming values, looks up their mapped output values, and returns the transformed image.
Common uses
Apply a show or creative LUT
Test a technical conversion LUT
Preview a client look
Use a LUT on a masked region
Flow anatomy
Inputs & outputs
The port structure shows how this node fits into a Fusion graph.
Input
Source image for the operation.
FileLUT
Fusion node
Output
The processed result from this node.
Inspector
Important parameters
Start with these controls before reaching for more complicated workarounds.
Browse
Opens a file browser for the related path or resource.
Pre-gain
Scales image values before the LUT.
Useful for exposure-like adjustment into a LUT, but it changes how the table is sampled.
Post-gain
Scales image values after the LUT.
Adjusts final level without changing which LUT entries were sampled.
Color Space
Selects the interpretation used by the LUT operation.
Make sure this matches the intended LUT workflow rather than guessing from the image appearance.
Color Space: RGB
Uses RGB as the color space.
Color Space: YUV
Uses YUV as the color space.
Color Space: HLS
Uses HLS as the color space.
Color Space: YIQ
Uses YIQ as the color space.
Color Space: CMY
Uses CMY as the color space.
Pre-Divide / Post-Multiply
Handles premultiplied alpha around the color operation.
Enable when transparent graphics develop contaminated edges after LUT processing.
Practical setup
A reliable workflow
- 1
Confirm the source color space and the LUT's expected input.
- 2
Load the LUT file.
- 3
Leave pre/post gain neutral initially.
- 4
Check neutral tones, highlights and saturated colors.
- 5
Use managed OCIO transforms instead if the task is full pipeline color management rather than a standalone LUT.
Typical node chain
Input→
FileLUT→
Output
Examples
Where this node fits in real work
Creative look
Apply a creative LUT after a normalized grade.
MediaInColorCorrectorFileLUTMediaOut
Transparent graphic LUT
Protect alpha edges while applying a color table.
GraphicFileLUTMerge
Troubleshooting
Common mistakes
Applying a LUT to the wrong input gamma or gamut
Stacking technical LUTs without documenting their order
Using pre-gain to compensate for a fundamentally wrong transform
Production notes
Practical tips
Keep LUT filenames and intended input/output spaces in node comments.
For large managed pipelines, prefer OCIO nodes so transforms remain explicit and reproducible.
Related nodes