Left Click: Grab mesh
Left Drag (empty): Rotate camera
Middle Drag: Move sphere
Right Click: Fire bullet sphere
Scroll: Zoom
Q: Screenshot (save PNG file)
Touch mesh → Place sphere (green/yellow)
Panel appears → Drag to move sphere
Release panel → Sphere stays, camera free
Double-tap mesh → Release all spheres
Empty drag: Camera rotation (spheres maintained)
2 Finger Pinch: Zoom
🥽 VR Mode: Hand tracking + controllers
Left hand (palm): Touch mesh to grab
Right hand (pinch): Precision control
Both hands have collision spheres
Quest 3 optimized