#version 3.7;

global_settings {
    assumed_gamma 1.3 max_trace_level 16
    radiosity {
        pretrace_start 0.08
        pretrace_end   0.01
        count 200
        nearest_count 10
        error_bound 0.5
        recursion_limit 2
        low_error_factor 0.5
        gray_threshold 0.0
    }
}

background { color rgb <0.78, 0.86, 0.98> }

camera {
  location <0, 6.5, -18>
  look_at  <0, 3.0,  6>
  angle 40
  up <0,9,0>
  right <16,0,0>  // right,up -> 16:9
}

light_source {
  <40, 55, -30>
  color rgb <1.00, 0.92, 0.80>*1.2
  area_light <8,0,0>, <0,0,8>, 5, 5
  adaptive 1
  jitter
}

light_source {
  <-25, 30, -10>
  color rgb <1.00, 0.90, 0.78>*0.6
  area_light <6,0,0>, <0,0,6>, 4, 4
  adaptive 1
  jitter
}

#declare F_Matte = finish { diffuse 0.75 roughness 0.06 specular 0.08 metallic 0.0 };
#declare F_Stone = finish { diffuse 0.80 roughness 0.08 specular 0.06 };
#declare F_Wood  = finish { diffuse 0.78 roughness 0.10 specular 0.05 };

#declare C_Road     = color rgb <0.55, 0.53, 0.50>;
#declare C_Sidewalk = color rgb <0.70, 0.68, 0.64>;
#declare C_Plaster1 = color rgb <0.88, 0.84, 0.78>;
#declare C_Plaster2 = color rgb <0.80, 0.85, 0.86>;
#declare C_Roof     = color rgb <0.55, 0.25, 0.18>;
#declare C_Stone    = color rgb <0.72, 0.72, 0.70>;
#declare C_Trim     = color rgb <0.35, 0.22, 0.12>;

plane {
  y, 0
  pigment { color rgb <0.68, 0.70, 0.68> }
  finish { diffuse 0.9 roughness 0.12 specular 0.03 }
}

union {
  box { <-3.2, 0.00, -2>, < 3.2, 0.02, 24>
    pigment { color C_Road }
    finish { F_Matte }
  }
  box { <-6.5, 0.00, -2>, <-3.2, 0.03, 24>
    pigment { color C_Sidewalk }
    finish { F_Matte }
  }
  box { < 3.2, 0.00, -2>, < 6.5, 0.03, 24>
    pigment { color C_Sidewalk }
    finish { F_Matte }
  }
}

#macro Building(BaseMin, BaseMax, WallColor)
union {
  box {
    BaseMin, BaseMax
    pigment { color WallColor }
    finish { F_Matte }
  }
  box {
    <BaseMin.x-0.05, BaseMax.y-0.15, BaseMin.z-0.05>,
    <BaseMax.x+0.05, BaseMax.y,     BaseMax.z+0.05>
    pigment { color C_Trim }
    finish { F_Wood }
  }
}
#end

#macro RoofGable(CenterX, Z1, Z2, YBase, HalfW, Height)
prism {
  linear_sweep
  linear_spline
  Z1, Z2,
  3,
  <-HalfW, YBase>,
  < 0,     YBase+Height>,
  < HalfW, YBase>
  translate <CenterX, 0, 0>
  pigment { color C_Roof }
  finish { F_Matte }
}
#end

union {
  Building(<-6.2, 0,  0>, <-3.4, 4.2,  6>, C_Plaster1)
  RoofGable(-4.8, 0, 6, 4.2, 1.55, 1.2)

  Building(<-6.4, 0,  7>, <-3.6, 5.0, 13>, C_Plaster2)
  RoofGable(-5.0, 7, 13, 5.0, 1.60, 1.35)

  Building(<-6.1, 0, 14>, <-3.3, 4.6, 20>, C_Plaster1)
  RoofGable(-4.7, 14, 20, 4.6, 1.55, 1.25)
}

union {
  Building(< 3.4, 0,  1>, < 6.2, 4.8,  7>, C_Plaster2)
  RoofGable(4.8, 1, 7, 4.8, 1.55, 1.25)

  Building(< 3.6, 0,  8>, < 6.4, 4.2, 14>, C_Plaster1)
  RoofGable(5.0, 8, 14, 4.2, 1.60, 1.10)

  Building(< 3.3, 0, 15>, < 6.1, 5.2, 21>, C_Plaster2)
  RoofGable(4.7, 15, 21, 5.2, 1.55, 1.40)
}

#declare CastleStone = texture { pigment { color C_Stone } finish { F_Stone } };

union {
  box { <-2.2, 0, 22>, <2.2, 3.2, 26> texture { CastleStone } }
  box { <-2.6, 0, 21.6>, <2.6, 0.35, 26.4> texture { CastleStone } }

  union {
    cylinder { <-2.6, 0, 22>, <-2.6, 4.0, 22>, 0.65 texture { CastleStone } }
    box { <-3.25, 4.0, 21.35>, <-1.95, 4.5, 22.65> texture { CastleStone } }
  }

  union {
    cylinder { <2.6, 0, 22>, <2.6, 4.0, 22>, 0.65 texture { CastleStone } }
    box { <1.95, 4.0, 21.35>, <3.25, 4.5, 22.65> texture { CastleStone } }
  }

  union {
    cylinder { <-2.6, 0, 26>, <-2.6, 4.0, 26>, 0.65 texture { CastleStone } }
    box { <-3.25, 4.0, 25.35>, <-1.95, 4.5, 26.65> texture { CastleStone } }
  }

  union {
    cylinder { <2.6, 0, 26>, <2.6, 4.0, 26>, 0.65 texture { CastleStone } }
    box { <1.95, 4.0, 25.35>, <3.25, 4.5, 26.65> texture { CastleStone } }
  }

  box { <-0.55, 0, 22>, <0.55, 1.6, 22.25>
    pigment { color rgb <0.18,0.12,0.08> }
    finish { diffuse 0.6 specular 0.05 roughness 0.12 }
  }

  translate <0, 0, 0>
}

fog {
  distance 80
  color rgb <0.78, 0.86, 0.98>
  fog_type 2
  fog_offset 0.0
  fog_alt 18
  turbulence 0.0
}