Invisible provided an interactive experience during which participants use their body as a light source.   Individuals walk through a proscribed site and discover what may exist within a dark empty space. The light, which shines above the participants’ head towards the floor, reveals the shadow of furniture hidden in the room.  As the participant moves through the space, the light source moves also and the shadow changes form  so that a realistic perspective is maintained.  Invisible creates the illusion that the physical object actually exists within the room.

Progress: Our concept came from the whimsical and interesting experience of using a flashlight to search for things during a black-out. To simulate the experience, I camera-tracked a participant’s position and transferred it to the corresponding light location in the program. I loaded 3D models of the furniture and used OpenGL to create shadow effects.  I worked with a partner to choose the objects, adjust the projected effect and calibrate camera and projector.