A Max-MSP-Jitter program produces a 3-D video display of a sphere resting on a planar surface. Using a tangible interaction object (like a Wiimote), that I designed and fabricated, I control the tilt of the plane. The interaction object, which is called "sGlowStick" includes a two axis accelerometer. The accelerometer data reflects the tilt of the physical object which in turn controls the tilt of the virtual plane. Data from the sGlowStick is sent via Bluetooth to the computer. As the virtual plane tilts, the virtual sphere moves according to inclined plane physics calculations, so it responds in a realistic way, as if one was balancing a real ball on a physical plane. The sGlowStick also includes a pressure sensor, RFID reader and LEDs to facilitate camera based motion tracking. These features are not used in this example.
