newmtl mat20
  Kd 0.47 0.33 0.28

newmtl mat21
  Kd 1.00 1.00 1.00

newmtl mat22
  Kd 0.62 0.62 0.62

newmtl mat13
  Kd 1.00 0.60 0.00

newmtl mat14
  Kd 1.00 0.34 0.13