Explain Things with Video
Enables green screen (chroma key) video recording with customizable background replacement and real-time control.
September 22, 2025
Samantha Monty
Chair for Human-Computer Interaction, University of Würzburg

Greenscreen

Configuration

explain:
    useGreenScreen: true
    greenScreenBackground: 'data/background.jpg'
    greenScreenKey: { r: 0, g: 255, b: 0 }
    greenScreenSimilarity: 0.4
    greenScreenSmoothness: 0.08

Invocation

  1. Type r to enable recording
  2. Type v to enable video