newmtl mat2
  Kd 0.40 0.23 0.72

newmtl mat21
  Kd 1.00 1.00 1.00

newmtl mat1
  Kd 0.61 0.15 0.69

newmtl mat12
  Kd 1.00 0.92 0.23

newmtl mat17
  Kd 0.27 0.35 0.39

newmtl mat16
  Kd 0.47 0.56 0.61

newmtl mat13
  Kd 1.00 0.60 0.00