I put this together in MegaPOV.  Commented out parts are the original
settings used to save the radiosity file, and this version of the scene file
used for rendering.  Btw, clock in this case goes from 1 to 120 in integer
increments (ie. Final_Frame 120, Final_Clock 120)

#version unofficial MegaPOV 0.5;
#include "colors.inc"

camera {location <5, 15, -25> rotate -3*clock*y look_at 1*y angle 27}

global_settings{
  radiosity{
    pretrace_start 0.16 /* pretrace_start 0.01 */
    pretrace_end 0.08  /* pretrace_start 0.01 */
    count 200 /* count 800 */
    recursion_limit 1
    nearest_count 1
    error_bound 0.05
    brightness 1
    normal on
    load_file "rad.rad" /* save_file "rad.rad" */
    always_sample no
  }
}

sky_sphere {pigment {color White}}

plane {y, 0
pigment {color White}
finish {ambient 0 diffuse .8}
}

#declare Sphere =
sphere {<0, 0, 0>, 2
translate 2*y
finish {ambient 0 diffuse .8}
}

object {Sphere translate <-2, 0, -2>
pigment {color Red}
}
object {Sphere translate <0, 0, 2>
pigment {color Blue}
}
object {Sphere translate <2, 0, -2>
pigment {color Yellow}
}

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Attachments:
Download 'balls.avi.dat' (180 KB)