#version 3.7;

global_settings {
  assumed_gamma 1.0
  max_trace_level 8
}

background { color rgb <0.96, 0.97, 0.99> }

camera {
  location <0.0, 2.1, -5.2>
  look_at  <0.0, 1.0,  0.0>
  angle 35
}

light_source {
  <3, 6, -4>
  color rgb <1, 1, 1>*1.2
  area_light <1.2,0,0>, <0,0,1.2>, 5, 5
  adaptive 1
  jitter
}

light_source {
  <-4, 4, -2>
  color rgb <1, 1, 1>*0.35
}

plane {
  y, 0
  texture {
    pigment { color rgb <0.92, 0.92, 0.94> }
    finish { diffuse 0.85 specular 0.05 roughness 0.06 }
  }
}

#declare T_CeramicWhite =
texture {
  pigment { color rgb <0.98, 0.98, 0.985> }
  finish  { diffuse 0.65 specular 0.45 roughness 0.02 reflection 0.05 }
}

#declare T_Saucer =
texture {
  pigment { color rgb <0.97, 0.97, 0.98> }
  finish  { diffuse 0.7 specular 0.5 roughness 0.02 reflection 0.06 }
}

#declare T_Coffee =
texture {
  pigment { color rgb <0.10, 0.06, 0.03> }
  finish  { diffuse 0.6 specular 0.55 roughness 0.015 reflection 0.08 }
}

#declare CupOuter = cylinder { <0,0.45,0>, <0,1.55,0>, 0.78 }
#declare CupInner = cylinder { <0,0.52,0>, <0,1.48,0>, 0.68 }

#declare CupBody =
difference {
  object { CupOuter }
  object { CupInner }
  plane { y, 0.50 inverse } // open top
  texture { T_CeramicWhite }
}

#declare HandleOuter = torus { 0.42, 0.11 rotate <90,0,0> translate <0.86,1.05,0> }
#declare HandleInner = torus { 0.42, 0.06 rotate <90,0,0> translate <0.86,1.05,0> }

#declare Handle =
difference {
  object { HandleOuter }
  object { HandleInner }
  // trim to a "C" shape
  box { <0.65,0.60,-1>, <2.0,1.50, 1> } 
  box { <-2.0,0.60,-1>, <0.76,1.50, 1> inverse }
  texture { T_CeramicWhite }
}

#declare Saucer =
union {
  difference {
    cylinder { <0,0.18,0>, <0,0.28,0>, 1.55 }
    cylinder { <0,0.19,0>, <0,0.30,0>, 1.32 }
    texture { T_Saucer }
  }
  torus {
    1.42, 0.06
    rotate <90,0,0>
    translate <0,0.22,0>
    texture { T_Saucer }
  }
}

#declare CoffeeSurface =
cylinder {
  <0,1.44,0>, <0,1.445,0>, 0.675
  texture { T_Coffee }
}

union {
  object { Saucer }
  object { CupBody }
  object { Handle }
  object { CoffeeSurface }
  // subtle grounding shadow helper (darken under cup)
  cylinder {
    <0,0.001,0>, <0,0.002,0>, 0.9
    pigment { color rgbt <0,0,0,0.85> }
    finish { diffuse 0 }
  }
  translate <0,0,0>
}