Laser Graffiti
An open-source browser tool that projects laser-pointer trails drawn on a wall in real time
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WHAT IT DOES
What does it do?
A webcam finds the laser dot and maps it to projector coordinates, then the projector renders strokes with effects such as neon, flowing ink, and 3D. It offers 6 brushes, a kaleidoscope effect, fade-out, snapshots, and a laser-operated menu on the wall. The MIT-licensed open-source project runs in a browser without installation or a native app.
KEY FEATURES
Key features
- Detect laser dots with a webcam and map camera coordinates to projector coordinates
- Round, marker, calligraphy, neon, spray, and rainbow brushes
- Flowing ink, 3D rotation, fade-out, and kaleidoscope effects
- Wall-mounted menu operated by laser
- Snapshots that save photos and drawings together as downloadable files
- Demo mode using a mouse or finger without a projector