Tetrahedral color toolkit · DaVinci Resolve DCTL
A suite of four colorist tools that grade each primary and secondary hue independently (saturation, remap, and density) with clean tetrahedral matrix math and zero hue bleed unless you ask for it.
Live · Hue engine preview
WebGLLive preview
Drag the divider to compare. The same per-vector moves (saturation, density, and hue rotation, grouped by RGB and CMY) applied live to a real still. Toggle Showcase to map exactly where the grade lands.
Controls saturation independently per hue vector using a tetrahedral matrix. Each slider sets how saturated that color region becomes without touching the other five hues. A Global Sat slider offsets all six at once.
Resolve's built-in hue-sat curves smear across broad hue bands with limited isolation. This gives precise, independent control over each of the six primary/secondary zones with clean matrix math, and no hue bleed unless you explicitly dial in Expand Range.
Pushes each hue vector toward its neighbour on the wheel. Every slider is bidirectional. Red positive pushes toward Magenta, negative toward Yellow; Yellow positive contracts toward Red, negative toward Green. The remap runs through the same tetrahedral structure, so transitions stay clean and artifact-free.
Subtle hue remapping in look development: nudging skin tones a touch warmer or cooler, pushing foliage greens toward teal or yellow, or pulling a single color off an undesirable cast. Far finer than rotating the whole color wheel.
Controls density (darkening and lightening) independently per hue vector. RGB primaries respond at full scale; CMY secondaries apply at half scale to preserve their characteristic filmic absorption. Density darkens by subtracting from all three channels of a vertex rather than just the off-diagonals, giving a more subtractive-dye quality than saturation alone.
Film stocks carry different dye densities per color layer. Replicate that: make reds denser and more saturated at once, or pull density out of cyan to open shadow detail in blue-heavy scenes. The CMY half-scale mirrors how secondary dye layers respond more subtly than primaries.
Combines all three operations (Remix, Saturation, and Density) in one tool, grouped by hue. Each of the six vectors carries its own Sat, Dens, and Remix slider. Global RGB and Global CMY sections add group-level offsets, and a Pass Order dropdown sets the serial processing order across the operations.
When a look needs coordinated hue, saturation, and density moves, say a film emulation where the red layer is denser, shifted toward orange, and more saturated. Three separate tools means three nodes and no way to see the interaction. Mastery gives you the full three-dimensional character of a hue zone in one place. Pass order matters: Remix first means saturation acts on the remapped position; Sat first means remix moves already-saturated colors.
Shared engine
All four tools are built on the same foundation: six hue vectors arranged on the wheel, interpolated with a tetrahedral matrix, and gated by the same guard, spill, and visualization helpers.
Each primary and secondary hue is a vertex sampled at 60° spacing. Rather than the broad hue-band masking Resolve uses natively, the tools interpolate between vertices with a tetrahedral matrix, the same fast, artifact-free interpolation used in 3D LUT engines. That clean structure is why effects stay isolated to their vector with no cross-contamination.
A smootherstep fade keyed to each pixel's input saturation. Low-saturation greys and neutrals are held back from the effect while saturated colors receive it fully, so a red boost never tints skin shadows or a grey wall.
A Gaussian rolloff that spills each vertex's delta into its wheel neighbours at 60° / 120° / 180°. Boost Red and a softened amount lifts Yellow and Magenta too, letting an effect spread naturally across adjacent hues instead of stopping hard at a vector boundary.
A diagnostic overlay: a checker pattern whose opacity is weighted by effect magnitude at each pixel. Wherever the tool is doing more work the checker reads stronger, giving you an instant map of exactly which regions of frame are being touched.
The master tool runs the three operations serially, and the order changes the result. Remix-first saturates the remapped position; Sat-first remaps colors that are already pushed. All six permutations are selectable so you can place each operation exactly where it belongs in the chain.
The membership
All four hue tools (Saturation, Remix, Density and Mastery) come with the whole Tool Box. Become a Happy Little Noder and unlock every premium tool on the channel, plus every update and new release. One low annual fee that will never be raised. Lock it in once and you're set.
A whole set of the Tool Box is free, always. Grab the Tool Box Manager and start playing today. The Hue Tools and the rest of the premium kit unlock with a single membership whenever you're ready.
Everything you see on YouTube, plus every update, for less than a single film stock LUT pack.