The Tetra transformation, as described by Steve Yedlin ASC, originally implemented by for Nuke by calvinsilly, ported to Fusion by EmberLightVFX, and presented here as a DCTL for the ResolveFX DCTL plug-in.
- Find Your LUT folder by opening File>Project Settings. Select Color Management, then under Lookup Tables, click Open LUT Folder.
- Put Tetra.dctl in there somewhere.
- Restart Resolve.
- Apply DCTL OFX from ResolveFX Color category to desired node.
- Select the Tetra.dctl file from DCTL List
Note: Control parameters are "normalized" so they are zero at unity. But, for the algorithm, values must correspond to their actual position on the cube. eg: the Red-Red value must be 1.0 at unity, so 1.0 is added to the entered value.
- calvinsilly's Nuke implementation: https://github.com/calvinsilly/Tetrahedral-Interpolation
- EmberLightVFX's Fusion implementation: https://github.com/EmberLightVFX/Tetrahedral-Interpolation-for-Fusion
- Yedlin's video hinting at this transform: http://www.yedlin.net/DisplayPrepDemo/DispPrepDemoFollowup.html