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Apply a .cube 3D LUT to a video clip with the FFmpeg lut3d filter
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What this guide covers
For editors and colourists who want to apply a lookup-table grade from the command line. You end with a graded copy of a clip and matched before and after stills. It follows the FFmpeg manual and was not run; the manual does not say which colour space a LUT expects.
More about this guide
Guide ID: art_01M6TWHVDEMQM7CATRSFYTM3P2
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Guide title
Apply a .cube 3D LUT to a video clip with the FFmpeg lut3d filter
Coverage
For editors and colourists who want to apply a lookup-table grade from the command line. You end with a graded copy of a clip and matched before and after stills. It follows the FFmpeg manual and was not run; the manual does not say which colour space a LUT expects.
Example
A hypothetical interview clip with a warm cube LUT and a chosen interpolation mode, compared against an unfiltered still; no command was run and no real footage was used.
Useful starting points
- If the LUT will not load, put it next to the clip with a plain file name and check the extension is one of the five formats the manual lists.
- Crushed or washed-out colour usually means the LUT was applied in the wrong colour space; follow the LUT provider's notes.
- Compare stills of the same frame with and without the filter; only colour should change, not framing or size.
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