LumaPlay is a voice-activated 3D physics sandbox built with React Three Fiber and Rapier physics engine. The Web Speech API transcribes children's voice commands into 3D object instantiation with real-time physical simulation at 60fps across devices.

The architecture features pixel-perfect raycast dragging, magnetic surface snapping with 0.1-unit precision alignment, and hierarchical rigid body constraints. Spatial AI evaluation analyzes object positions and stacking patterns to deliver adaptive learning feedback.

Live Demo: https://omma.build/hauimieky7s Youtube: https://youtu.be/JB9-no8i3hY?si=4tplGfEaHtxXlLZn