#include "rad_def.inc"

#declare RADIOSITY = off;

global_settings {
	assumed_gamma 1

	#if( RADIOSITY )
		radiosity {
			pretrace_start .08
      		pretrace_end .002
      		count 1000
      		nearest_count 10
      		error_bound .1
      		recursion_limit 1
      		low_error_factor .6
      		gray_threshold 0
      		minimum_reuse .015
      		brightness 1
      		adc_bailout .01 / 2
		}
	#end
}

camera {
	location <7.5, 7.25, 0> * .8
	look_at <-3, 1, -.5>
}

background {
	color rgb 1
}

#declare porcelin = finish {
	ambient 0
	brilliance 0
	diffuse .75
	phong 1
	phong_size 175
	specular 0
	roughness .001
	reflection {
		.2, 1
		falloff 2
		exponent 1
	}
	conserve_energy
}

#declare subScatter = interior {
	ior .9
}

#declare spheres = object {
	union {
		sphere {
			<0, 0, 0>, 2.5
			pigment {
				color rgbt <0, 0, .5, .25>
			}
			finish {
				porcelin
			}
			translate <-5, 2.5, -3>
		}

		sphere {
			<0, 0, 0>, 2
			pigment {
				color rgb <.5, 0, 0>
			}
			finish {
				porcelin
			}
			translate <-4, 2, 2.5>
		}

		sphere {
			<0, 0, 0>, 1.5
			pigment {
				color rgb <0, .15, 0>
			}
			finish {
				porcelin
			}
			interior {
				subScatter
			}
			translate <0, 1.5, -1>
		}
	}
	photons {
		target
		reflection on
		refraction off
	}
	no_shadow
}

light_source {
	<1500, 500, 750> color rgb .5
	photons {
		reflection on
		refraction off
	}
}

object {
	spheres
}

plane {
	y, 0
	pigment {
		color rgb 1
	}
	finish {
		ambient 0
		diffuse .5
	}
}