HectorScope
HectorScope is a 3D waveform visualisation tool that displays luma and chroma information together in a three-dimensional space. Named after its creator Hector Berebi — a working colourist and educator who teaches colour theory through historical and perceptual framings — it provides a unique perspective on your video signal.
Where a classic waveform collapses the image to 2D (spatial position × level) and a vectorscope collapses it to 2D chroma (Cb × Cr), HectorScope plots all three of Y' (luma), Cb, and Cr at once. Each pixel becomes a point in a 3D cube that you can rotate interactively. Patterns that are hidden in a 2D projection — a coloured cast that only affects shadows, or a chroma outlier that sits inside the convex hull of the vectorscope trace — become obvious when you rotate the cube.
Overview
Unlike traditional 2D waveforms, HectorScope renders your signal in 3D space, allowing you to:
Visualise the relationship between luma and chroma together, not in separate scopes
Identify colour distributions that are hidden in 2D projections
Examine shadow, midtone, and highlight regions from multiple angles
Interface
The scope displays a 3D representation of your video signal that can be rotated and navigated interactively.
Navigation
Rotate
Click and drag
Zoom
Mouse wheel
Pan
Hold Shift + drag
Reset view
Double-click
Settings
Access scope settings via the hamburger menu (☰) or right-click on the scope.
Display Options
Point Size
Size of individual sample points
Auto
Brightness
Overall brightness of the display
1.0
Color Model
RGB or YCbCr color representation
RGB
Rotation Controls
Per-axis rotation controls allow precise orientation of the 3D view:
X Rotation
Tilt up/down
Y Rotation
Rotate left/right
Z Rotation
Roll
Use Cases
Shadow Detail Analysis
Rotate the view to isolate shadow regions and examine noise or color contamination in dark areas.
Highlight Rolloff
View the transition from midtones to highlights to ensure smooth rolloff without clipping.
Color Balance
Examine the overall distribution of colors to identify unwanted color casts across tonal ranges.
Tips
Use in combination with the standard Waveform for comprehensive analysis
Double-click to reset to the default view when navigating becomes disorienting
Reduce point size for dense signals to see structure more clearly
Related Scopes
Waveform - Traditional 2D waveform view
3D Color Cube - 3D color space visualization
Vectorscope - 2D chroma analysis
Last updated