Wave your hands at the webcam and the grass moves with them. Your fingertips sweep through the blades like wind. Move fast for a gust; hold still and the field settles.

Nothing leaves this tab. The camera opens only when you press the button below. Hand tracking runs inside your browser. No frame, image or position is sent anywhere or saved. The page downloads the hand-tracking model from Google once, and no camera data goes with that request. Close the page and it's gone.

Open the camera Use the mouse instead