field SFRotation rotA         0 0 1 0
      field SFRotation rotB         0 0 1 0
      field SFVec3f    defDirection 0 0 1
      field SFVec3f    yAxis        0 1 0
      field SFVec3f    up           0 1 0
  
      field SFBool upk   FALSE
      field SFBool down  FALSE
      field SFBool left  FALSE
      field SFBool right FALSE
      field SFBool space FALSE