#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
    }
}

#include "colors.inc"

// ------------------------------------------------------------
// Camera + background (warm studio like the references)
// ------------------------------------------------------------
background { color rgb <0.95, 0.78, 0.68> }

camera {
  location <0, 3.2, -9.6>
  look_at  <0, 2.55, 0.0>
  angle 40
  up <0,9,0>
  right <16,0,0>  // right,up -> 16:9
}

// ------------------------------------------------------------
// Warm, soft lights (area lights = soft shadows)
// ------------------------------------------------------------
light_source {
  <7, 10, -8>
  color rgb <1.00, 0.84, 0.68>*1.15
  area_light <3.2,0,0>, <0,0,3.2>, 6, 6
  adaptive 1
  jitter
}

light_source {
  <-7, 9, -6>
  color rgb <1.00, 0.86, 0.72>*0.70
  area_light <3.0,0,0>, <0,0,3.0>, 6, 6
  adaptive 1
  jitter
}

light_source {
  <0, 10, 7>
  color rgb <1.00, 0.92, 0.80>*0.28
  area_light <2.4,0,0>, <0,0,2.4>, 5, 5
  adaptive 1
  jitter
}

// ------------------------------------------------------------
// Studio sweep (floor + curved backdrop)
// ------------------------------------------------------------
#declare SweepCol = <0.95, 0.78, 0.68>;
#declare FloorCol = <0.72, 0.64, 0.60>;

#declare SweepFinish = finish { diffuse 0.95 specular 0.03 roughness 0.18 ambient 0 }
#declare FloorFinish = finish { diffuse 0.90 specular 0.05 roughness 0.12 ambient 0 }

union {
  plane { y, 0 pigment { color rgb FloorCol } finish { FloorFinish } }

  // simple cyclorama curve
  difference {
    cylinder { <0, 0, 5.0>, <0, 7.0, 5.0>, 7.8 }
    cylinder { <0, 0, 5.1>, <0, 7.0, 5.1>, 7.2 }
    plane { z, 4.25 inverse }
  }
  pigment { color rgb SweepCol }
  finish  { SweepFinish }
}

// ------------------------------------------------------------
// Materials: clay/stone (procedural, fast, NO parse-error constructs)
// ------------------------------------------------------------
#declare ClayBaseCol = <0.46, 0.40, 0.35>;
#declare ClayDark    = <0.30, 0.26, 0.23>;
#declare ClayLight   = <0.58, 0.51, 0.45>;
#declare ClaySpeck   = <0.74, 0.68, 0.60>;

// Base mottling
#declare ClayPig1 =
pigment {
  bozo
  color_map {
    [0.00 color rgb ClayDark]
    [0.45 color rgb ClayBaseCol]
    [0.80 color rgb ClayLight]
    [1.00 color rgb (ClayLight*1.06)]
  }
  scale 0.60
  turbulence 0.65
  omega 0.55
  lambda 2.2
}

// Speckle overlay (small bright grains)
#declare ClayPig2 =
pigment {
  granite
  color_map {
    [0.00 color rgbt <ClayBaseCol.x, ClayBaseCol.y, ClayBaseCol.z, 1.00>]
    [0.72 color rgbt <ClayBaseCol.x, ClayBaseCol.y, ClayBaseCol.z, 1.00>]
    [0.82 color rgb ClaySpeck]
    [1.00 color rgb ClaySpeck]
  }
  scale 0.20
}

// Proper average pigment_map syntax: each entry is [Weight Pigment]
#declare ClayPigment =
pigment {
  average
  pigment_map {
    [1.00 ClayPig1]
    [0.35 ClayPig2]
  }
}

#declare ClayNormal =
normal {
  average
  normal_map {
    [0.70 bumps 0.22 scale 0.06]
    [0.45 wrinkles 0.32 scale 0.45]
  }
}

#declare ClayFinish =
finish {
  diffuse 0.88
  specular 0.18
  roughness 0.07
  ambient 0.0
}

#declare TabletFinish =
finish {
  diffuse 0.85
  specular 0.22
  roughness 0.06
  ambient 0.0
}

// ------------------------------------------------------------
// Prague Golem (blobs) + cutouts + emissive eyes/scars
// ------------------------------------------------------------
#declare GolemBody = blob {
  threshold 0.62

  // torso (squat)
  sphere { <0, 2.35, 0>, 1.70, 1.15 }
  sphere { <0, 1.65, 0>, 1.55, 1.10 }
  sphere { <0, 3.05, 0>, 1.28, 1.00 }

  // shoulders (very broad)
  sphere { <-1.80, 2.92, 0>, 1.52, 1.08 }
  sphere { < 1.80, 2.92, 0>, 1.52, 1.08 }
  sphere { <-2.10, 2.60, 0>, 1.25, 0.88 }
  sphere { < 2.10, 2.60, 0>, 1.25, 0.88 }

  // head dome
  sphere { <0, 3.95, 0>, 1.28, 1.05 }
  sphere { <0, 4.48, 0>, 0.90, 0.92 }

  // arms (wrapped forward)
  cylinder { <-2.75, 2.55, -0.10>, <-1.15, 2.00, -0.60>, 0.90, 0.95 }
  cylinder { < 2.75, 2.55, -0.10>, < 1.15, 2.00, -0.60>, 0.90, 0.95 }
  sphere   { <-1.08, 1.95, -0.70>, 0.88, 0.95 }
  sphere   { < 1.08, 1.95, -0.70>, 0.88, 0.95 }

  // hands
  sphere { <-0.98, 1.60, -1.10>, 0.72, 0.98 }
  sphere { < 0.98, 1.60, -1.10>, 0.72, 0.98 }

  // finger hints (simple blobs)
  sphere { <-1.33, 1.55, -1.20>, 0.26, 0.55 }
  sphere { <-1.06, 1.42, -1.27>, 0.25, 0.55 }
  sphere { <-0.78, 1.52, -1.27>, 0.25, 0.55 }

  sphere { < 1.33, 1.55, -1.20>, 0.26, 0.55 }
  sphere { < 1.06, 1.42, -1.27>, 0.25, 0.55 }
  sphere { < 0.78, 1.52, -1.27>, 0.25, 0.55 }

  // legs (stumpy)
  cylinder { <-0.72, 0.05, 0>, <-0.72, 1.35, 0>, 0.88, 1.05 }
  cylinder { < 0.72, 0.05, 0>, < 0.72, 1.35, 0>, 0.88, 1.05 }
  sphere   { <-0.72, 0.15, 0.18>, 0.95, 0.90 }
  sphere   { < 0.72, 0.15, 0.18>, 0.95, 0.90 }
  sphere   { <-0.72, 1.35, 0.05>, 0.85, 0.88 }
  sphere   { < 0.72, 1.35, 0.05>, 0.85, 0.88 }

  // leg separation (negative)
  cylinder { <0, 0.05, 0.30>, <0, 1.55, 0.30>, 0.24, -0.60 }

  // clamp to ground precisely
  clipped_by { plane { y, 0 } }
}

// Tablet/book block the golem holds
#declare Tablet = difference {
  union {
    // left slab
    box { <-0.44, 1.35, -1.38>, <0.08, 2.80, -0.80> }
    // right slab
    box { < 0.08, 1.35, -1.22>, <0.82, 2.80, -0.62> }
    // bottom bar
    box { <-0.70, 1.22, -1.28>, <0.92, 1.60, -0.62> }
  }

  // right plate dot/hole
  cylinder { <0.62, 2.42, -0.55>, <0.62, 2.42, -0.98>, 0.11 }

  // mild corner softening via subtractive spheres
  sphere { <-0.44, 2.80, -1.38>, 0.11 }
  sphere { < 0.82, 2.80, -1.22>, 0.11 }
  sphere { <-0.70, 1.22, -1.28>, 0.11 }
  sphere { < 0.92, 1.22, -1.28>, 0.11 }
}

// Cutouts/holes matching the reference sculpture
#declare GolemCutouts = union {
  // forehead dot
  sphere { <0, 4.22, -0.62>, 0.20 }

  // triangular eye holes (tapered cones)
  cone   { <-0.32, 3.78, -0.56>, 0.30, <-0.32, 3.48, -1.10>, 0.01 }
  cone   { < 0.32, 3.78, -0.56>, 0.30, < 0.32, 3.48, -1.10>, 0.01 }

  // mouth slit
  box { <-0.55, 3.18, -0.94>, <0.55, 3.34, -0.58> }

  // chest cavity (rectangular-ish with rounded assist)
  box { <-0.36, 2.00, -1.26>, <0.36, 3.15, -0.34> }
  sphere { <0.00, 2.55, -0.92>, 0.64 }

  // angled bite/ledge at top of cavity
  prism {
    linear_sweep
    linear_spline
    -0.22, 0.22,
    4,
    <-0.44, 0.00>, <0.44, 0.00>, <0.10, 0.62>, <-0.30, 0.62>
    rotate <90,0,0>
    translate <0.00, 2.98, -0.80>
  }
}

// ------------------------------------------------------------
// Glow: eyes + scars (emissive geometry behind openings)
// ------------------------------------------------------------
#declare GlowColor = <1.00, 0.70, 0.28>; // warm amber

#declare GlowFinish = finish {
  diffuse 0
  ambient 1.0
  emission 1.0
  specular 0
}

#declare EyeGlow = union {
  // place behind the eye holes so it shines out
  cone { <-0.32, 3.72, -0.95>, 0.22, <-0.32, 3.55, -1.34>, 0.02 }
  cone { < 0.32, 3.72, -0.95>, 0.22, < 0.32, 3.55, -1.34>, 0.02 }
  pigment { color rgb GlowColor }
  finish  { GlowFinish }
}

#declare ScarGlow = union {
  // front torso glowing cracks/scars (thin cylinders + beads)
  cylinder { <-0.62, 2.70, -1.04>, <-0.18, 2.38, -1.00>, 0.045 }
  cylinder { <-0.15, 2.92, -1.00>, < 0.34, 2.58, -0.98>, 0.040 }
  cylinder { < 0.28, 2.34, -1.00>, < 0.62, 2.06, -0.93>, 0.042 }
  cylinder { <-0.26, 2.18, -1.00>, < 0.18, 1.92, -0.93>, 0.038 }

  sphere { <-0.62, 2.70, -1.04>, 0.060 }
  sphere { <-0.18, 2.38, -1.00>, 0.055 }
  sphere { < 0.34, 2.58, -0.98>, 0.055 }
  sphere { < 0.62, 2.06, -0.93>, 0.060 }

  pigment { color rgb (GlowColor*0.95) }
  finish  { GlowFinish }
}

// ------------------------------------------------------------
// Assemble golem
// ------------------------------------------------------------
#declare Golem = union {
  // Carved body
  difference {
    object { GolemBody }
    object { GolemCutouts }
  }

  // Tablet (same clay but slightly crisper)
  object {
    Tablet
    pigment { ClayPigment }
    normal  { ClayNormal }
    finish  { TabletFinish }
  }

  // Glows
  object { EyeGlow }
  object { ScarGlow }

  // Body material
  pigment { ClayPigment }
  normal  { ClayNormal }
  finish  { ClayFinish }
}

// Contact shadow helper (subtle)
#declare ShadowPad =
disc {
  <0,0.001,0>, y, 2.35
  pigment { color rgbt <0.06, 0.05, 0.04, 0.78> }
  finish  { diffuse 0.0 ambient 0.9 }
}

object { ShadowPad }
object { Golem }