We developed an optical system that used 8 play-station cameras in an array. We realized that, while it did deliver good motion capture data, it would not work well in the small spaces that we required to shoot in, like a garage for example. Also the calibration time was problematic as everyone on set would have to wait 40 minutes each time we set the system up.
Anyone who shoots on a tight budget or needs to shoot quickly knows that is not practical so we are getting back to work on another system . . we think we found that system. More soon.