newmtl mat0
  Kd 0.73 0.41 0.78

newmtl mat7
  Kd 0.94 0.38 0.57

newmtl mat4
  Kd 0.00 0.74 0.83

newmtl mat21
  Kd 1.00 1.00 1.00

newmtl mat18
  Kd 1.00 0.80 0.53