Quick Calibrate places the floor where the headset is, but off-head the
Rift S is in standby and holds its last head pose, so the floor ended up
at head height (#5). The Room Setup guard now keeps the calibration made
while the headset was in use. If the standing origin changes in the same
universe while the headset is in standby, the guard restores that
calibration and explains that Room Setup sets the floor. The unbounded
session universe cannot be committed through IVRChaperoneSetup, so this
restore reloads the saved file.
Each session also re-bases tracking, so offsets saved in universe 3 sent
the floor to the wrong height in later sessions. The session origin is
now reset to the plain origin at startup. The saved room (universe 2) is
unchanged.
Fixes#5
lbgos
41e1aabe06