newmtl mat22
  Kd 0.62 0.62 0.62

newmtl mat18
  Kd 1.00 0.80 0.53

newmtl mat21
  Kd 1.00 1.00 1.00

newmtl mat19
  Kd 0.87 0.60 0.27

newmtl mat9
  Kd 0.55 0.76 0.29

newmtl mat20
  Kd 0.47 0.33 0.28