Show HN: Laser Graffiti
Summary
Show HN: Laser Graffiti introduces a browser-based system that uses a projector, webcam, and laser pointer to draw on walls, with no installation required. It features calibration steps, multiple brushes, 3D extrusion, and other visual effects, all under an MIT-licensed open-source project by consti. The author notes AI plays a role in building the project.