#include "materials.inc"

define camera c
{
  translate <0,0,-30>
  look_at   <0,0,0>
}

define material MyLambertian
{
  bsdf : class BsdfLambertian { }
  diffuse 0.6
  ambient 0
}

// An area light source.
torus
{
  translate <0,0,0>
  rotate <45,45,0>
  radius_a 1.7
  radius_b 0.5
  material : extends MyLambertian
  {
    emission : class PatternChecker
    {
      color CRed
      base_color CGreen
      size 2
    }
    color CWhite
  }
}

sphere
{
  translate <0,0,0>
  radius 1.0
  material : extends MyLambertian
  {
    emission : class PatternLeopard
    {
      color CBlue
      base_color CDimGrey
      zoom <0.10,0.10,0.10>
    }
    color CWhite
  }
}


// Junk to get in the way of the light...
aggregate
{
  sphere
  {
    translate <0,-4,0>
    radius 2
  }
  sphere
  {
    translate <0,4,0>
    radius 2
  }
  plane
  {
    translate <0,-10,0>
    normal <0,1,0>
  }
  plane
  {
    translate <0,10,0>
    normal <0,-1,0>
  }
  plane
  {
    translate <0,0,5>
    normal <0,0,-1>
  }
  plane
  {
    translate <2.5,0,2.5>
    normal <-.707,0,-.707>
  }
  plane
  {
    translate <-2.5,0,2.5>
    normal <.707,0,-.707>
  }      
  material : extends MyLambertian
  {
    color CWhite
  }
  
}


scene
{
  camera	c
  width		400
  height	400
  output
  {
    type        "png"
    name        "area_light2.png"
  }
  renderer : class Raytracer 
  {
    aa_depth  8
    sampling "stochastic"
  }
}