Left drag: rotate camera
Shift + left drag: pan
Shift + Z + left drag horizontally: rotate the model around the light source
Mouse wheel: cursor-focused zoom with subtle inertia
Click model/ground: reset/focus view to mouse
Double-click model: zoom camera to 3 meters from clicked point
Right drag: pan
Rotate button: slow facade-biased auto-rotation with soft start/stop
Any model interaction: stops auto-rotation
Esc: slowly fly back to the original view and stop rotation
Fly Cam always active: WASD / arrow keys, Q/E vertical, Shift faster