ghost-cubes

Ghost-cubes is an interactive art piece that lets you control light and sound using simple hand gestures. Imagine a set of glowing cubes sitting on a table — when you move your hands in front of them, the cubes respond instantly, changing their brightness, color, and rotation, while a matching soundscape plays in the background.

The system recognizes four main gestures. Showing your hand to a cube wakes it up and starts its sound. Opening and closing your fingers adjusts the brightness of the surrounding cubes and the overall sound volume. Rotating your palm spins the cubes and changes the pitch of the audio. When you use both hands at once, the cubes shift from white to colored light, and raising or lowering each hand independently controls the saturation and volume of two separate audio channels.

You would use this if you are building interactive installations, live performances, or museum exhibits where people can play with physical objects through motion alone. A performer could use it as a visual and musical instrument on stage, or a gallery curator could set it up as a hands-on piece that visitors explore. It is for anyone who wants to turn body movement into a synchronized experience of light and sound without pressing buttons or touching screens.

The README does not go into detail about the underlying technology, so it is unclear exactly which motion-tracking tool or hardware is reading the hand movements, or what powers the sound and light output. What is clear is the design approach: it maps natural gestures directly to sensory feedback, creating an intuitive interface where your hands become the controller.