The Vectorscope plots chrominance on a circular graph — hue as angle, saturation as distance from centre. Use it to evaluate colour balance, skin-tone accuracy, and broadcast-legal saturation.
Vectorscope with 75 % targets, skin-tone line, and I/Q guides Vectorscope features: Color Wheel mode, hexagonal rings, trace outline, skin-tone tolerance band, improved target indicators, and I/Q lines Classic broadcast vectorscope (CbCr plane). Default.
Saturation-weighted projection — useful for look-dev work
You can switch Orientation to the alternate rotation mode in either transform mode. For a color-wheel-style orientation, use HSL transform with the alternate orientation mode.
Zoom into the centre of the plot for fine colour-balance work or expand to see the full gamut.
Zoom in / out (continuous)
Middle-click or Double-click
Zoomed vectorscope for precise colour balance inspection Context-menu presets: 100 % and 200 % for quick switching.
Boost the trace intensity to reveal low-saturation detail.
Mouse wheel (with Mouse wheel gain enabled)
Middle-click or Double-click
Enable Mouse wheel gain in the scope settings to switch the scroll wheel from zoom to gain control.
Graticule & Guides
Graticule and guide settings Graticule Style
Circular rings with crosshair, I/Q lines, and target boxes
Gradient-based hue visualisation with directional vectors
Full colour wheel background for intuitive hue reference
Hue Vectors graticule style Color Wheel graticule style Colour wheel around the outer edge. Can be dimmed for less distraction.
X/Y axis lines through centre
Saturation reference rings. Toggle between circular and hexagonal paths.
In-phase / Quadrature axis guides
Tick marks around the outer ring
Broadcast colour-bar target markers
Configurable reference line at a user-defined hue angle (default 123°)
Skin-Tone Indicator Band
The skin-tone line can be expanded into an optional tolerance band. This helps you quickly see whether skin hues stay close to your chosen reference angle.
Enables the skin-tone reference axis
Sets the reference angle (0–359°, default 123°)
Draws a shaded angular band around the reference line
Band half-width in degrees (±1° to ±45°; common values are ±10° or ±20°)
Adjust band colour and opacity for visibility
Skin-tone tolerance band on the vectorscope Interpretation: trace energy inside the band is within your current skin-tone tolerance; trace energy outside the band indicates hue drift from that reference.
Broadcast Targets
Standard 75 % colour-bar targets (default: on)
Full-level colour-bar targets
Target colour and position are derived from the active colour space.
Trace Presentation
Tint the trace with per-pixel colour (vs. monochrome)
Linearise the colour plot for more even brightness
Temporal blend for a cleaner, less noisy look
Line-strip rendering instead of point cloud
Master trace brightness (0.02–3.0)
Extra gain applied to the low-saturation core (0–12)
Highlight Trace Edges
Render a coloured outline at the outermost boundary of the trace — highlights the signal extent at a glance.
Trace edge highlight showing signal boundary Split Tones (L/M/H)
Split the trace into three independent Lows / Mids / Highs luminance buckets, each drawn in its own circle. This reveals how colour shifts across shadow, midtone, and highlight regions.
Vectorscope in L/M/H split mode L/M/H split with Color Wheel graticule Enable the three-way split
Boundary between Lows and Mids (default 33 %)
Boundary between Mids and Highs (default 66 %)
Adjust graticule brightness per bucket
Sharper rendering for split view
Hold Alt to see a false-colour overlay on the Source Signal showing which pixels fall into each luminance range — blue for lows, green for mids, red for highs.
L/M/H preview overlay showing luminance ranges on the source image Use the standard vectorscope zoom controls while inspecting the split circles.
Zoomed L/M/H split — focus on mids Luminosity Range Clamp
Instead of splitting into three buckets, clamp to a single luminosity range using the Min / Max luminosity sliders. Only pixels within the range are plotted.
Saturation Alerts
Set thresholds to flag illegal or excessive saturation levels.
Saturation alert ring and max ring indicators Coloured ring at a configurable saturation threshold. Signal exceeding it triggers a visual warning. Drag the ring interactively to reposition.
Tracks and displays the absolute maximum saturation contour in real time
GPU-rendered trace boundary with anti-aliasing. Use the Outline Thickness slider to adjust the rendered width (0.5–5 px).
Each alert has a customisable colour.
Low-Pass Filter
Enable Low-Pass filter to apply a horizontal box blur to the trace, reducing noise and making trends easier to read. Adjustable kernel size (0.5–20).
Global targets appear as RGB reference points on the vectorscope, providing shared colour targets across all scopes and layouts.
When colour pins are placed on the Source Signal, they appear as markers on the vectorscope at the corresponding hue/saturation position.
Colour pins reflected on the vectorscope Right-click any colour pin on the vectorscope to Set as custom target — a quick way to turn a sampled colour into a global target without manually entering values.
Right-click a colour pin to set it as a custom target The vectorscope defaults to the working signal. Use Color Space Transform override in Source & Input to evaluate the trace in a selected working/display transform.
Skin-Tone Practice
Skin tones usually align close to the skin-tone axis (commonly around the -I direction, often within about 10–20°), but creative and regional preferences still apply. Use the tolerance band as a visual guide, not a hard rule.
Keyboard Shortcuts
Zoom (or Input Gain if enabled)
Preview L/M/H split ranges
StreamDeck / Action Editor
Button: toggle 1×/2× zoom. Dial: fine zoom (±5 %, 35–500 %)
