newmtl mat17
  Kd 0.27 0.35 0.39

newmtl mat23
  Kd 0.10 0.10 0.10

newmtl mat16
  Kd 0.47 0.56 0.61

newmtl mat24
  Ka 0.58 0.65 1.00
  Kd 0.92 0.95 0.94
  Ks 1 1 1
  illum 9
  Ns 300
  d 0.4
  Ni 1.5

newmtl mat21
  Kd 1.00 1.00 1.00

newmtl mat8
  Kd 0.96 0.26 0.21