f pearl, 1, 20                  PEARL001.PI1,...,PEARL020.PI1
r 1.0, 3                        med-rez (1 ray per pixel), 3 colors
g 32.0                          gravity

  (x     vx,    y,     vy    z,     vz) radius
p 195.0,-20,    130.0, 0,    250.0, 10, 30.0    these are 4 linked balls:
p 150.0, -5,    100.0, 20,   250.0, 10, 30.0    "
p 105.0,  5,    70.0,  20,   250.0,-20, 30.0    "
p 60.0,  20,    40.0,  0,    250.0,-20, 30.0    "
p  0.0, -10,    300.0, 20,   600.0, 0,  300.0   this is the big ball
p 200.0,  4,     50.0, 35,   60.0,30,   50.0    a medium size (lone) ball

  ior  refr refl difu amb    red grn blue
o 0.0, 0.0, 0.3, 0.6, 0.1,   1.0,0.0,0.0   diffuse red, somewhat reflective
o 0.0, 0.0, 0.6, 0.3, 0.1,   1.0,1.0,1.0   reflective, somewhat white
o 0.0, 0.0, 0.9, 0.0, 0.1,   1.0,1.0,1.0   reflective, some ambient
o 0.0, 0.0, 0.0, 0.8, 0.2,   1.0,0.0,0.0   diffuse red, some ambient
o 0.0, 0.0, 0.7, 0.1, 0.2,   1.0,1.0,1.0   reflective and ambient (the big one)
o 1.6, 0.8, 0.0, 0.0, 0.2,   1.0,1.0,1.0   refractive

v 215.0,        100.0,       -550.0             viewpoint
l 150.0,        950.0,          0.0,    100.0   light source
