The physical CAVE coordinate system is defined as shown above. The origin is normally in the center of the floor. The default units are feet.
The tracking process continuously reads data from the trackers, transforms it into physical CAVE coordinates, and stores it in shared memory where it is read by library functions. The tracking process also reads the current state of the wand (the buttons, joystick, or other valuators).
The tracking and wand data which is used by the library functions below is updated once per frame at the beginning of the frame, so that it is consistent for all the drawing processes.
Last modified 15 June 1996.
Dave Pape, pape@evl.uic.edu