3
  0.867999  -0.495492 -0.0326419   0.101692
  0.412014   0.681952   0.604306    0.14533
 -0.277168  -0.537986   0.796084   0.895749
         0          0          0          1
  0.999081   0.041616 -0.0102357   0.106128
 -0.025972   0.777928   0.627816 -0.0823885
 0.0340899  -0.626974   0.778294    1.07996
         0          0          0          1
   0.812644    0.582755 -0.00246595   -0.158239
  -0.457851    0.641074    0.615952   0.0301362
   0.360529   -0.499421     0.78778    0.982559
          0           0           0           1
