An array of networked user data. The first *CAVENumUsers entries of CAVEUser are pointers to structures containing the tracking data from the different nodes in the CAVE networking group. CAVEUser[0] contains the local node's data. The other entries are not guaranteed to always maintain the same position in the array; they may be moved as nodes join and leave the networking group. However, the pointer to a given CAVE's data will not change (unless the CAVE exits and then later rejoins the group).