newmtl mat5
  Kd 0.01 0.61 0.90

newmtl mat21
  Kd 1.00 1.00 1.00

newmtl mat12
  Kd 1.00 0.92 0.23

newmtl mat18
  Kd 1.00 0.80 0.53

newmtl mat7
  Kd 0.94 0.38 0.57