3
  0.628628  -0.754773  -0.187469 -0.0429479
  0.648085   0.375159   0.662753   0.198937
 -0.429898  -0.538121   0.724993   0.971692
         0          0          0          1
   0.961827   -0.172549   -0.212403   0.0718243
   0.272429    0.530275    0.802865 -0.00596511
 -0.0259016   -0.830082     0.55704     1.12441
          0           0           0           1
    0.916677     0.334868    -0.218099    -0.233235
  -0.0787888      0.68648     0.722867 -0.000160694
    0.391785    -0.645452     0.655664      1.07842
           0            0            0            1
