The project uses a video camera, digitally connected to a Apple Macintosh G4 desktop computer. The video is processed by our custom software and then outputted to a projector, which projects onto a screen at the rear of the stage.

We use microphones on the stage in order to capture sounds from the performance. These sounds are input into the computer through a mixing board, and then those sounds are processed in various ways, and then output to speakers.

We built custom laser/receptor sets for the stage. These consist of two parts. One is a laser pen attached to a clamp, depicted below. As you can see, the laser is clamped onto a normal microphone stand.

The other custom device we built is a receptor box, which contains a photoresistor. The receptor box is also attached to a clamp, also designed to be clipped to a standard microphone stand. Here's a closeup of how the clamp is attached to the receptor box. Also, note the plug at the end of the cable in the picture to the right. At the end of this plug, one can see the potentometer used for calibration of the exact resistance of the photoresistor.

The receptor is also connected to the computer, through Douglas Repetto's customized Peavey MIDI slider box. We use these laser/receptor sets to detect movement on the stage. Whenever a beam is somehow blocked in such a way that it no longer illuminates the receptor's photoresistor, our software can detect that change and use it to affect the performance in various ways.

We clamp the lasers and receptors to microphone stands. We then place these stands at predetermined locations on the stage, aim the lasers at their designated receptors, and then ensure that the receptors are all calibrated properly.

The sketch to the left shows the stage. Each "x" is a microphone stand, and each number denotes that a receptor is on that stand. The paths of the lasers are also sketched in.