The Motion-Sensitive Painting
“Still Life” is an interactive art piece by Scott Garner. “Years ago, I had the idea of a still life painting that wasn’t so still, but could never quite wrap my head around how to build it. After various experiments and explorations, I settled on Unity 3D as the ideal tool to make it happen,”  states Garner. To understand how the painting moves from side to side, you must view video within post.
Notes about the project (from the designer’s website):
On the hardware side is a custom-framed television connected to a rotating mount from Ergomart. Attached to the back of the television is a spatial sensor from Phidgets, makers of fine USB sensors. On the software side is a simple C application to communicate with the sensor and feed the data to a Unity 3D scene. The scene itself consists of a camera tied to the sensor data with all lights and objects parented to it so they rotate in unison.
1. "Still Life - Concept." Scott.j38.net. Retrieved on January 27th, 2012. Photos © Scott Garner Link via Designboom