#version 3.7;

global_settings { assumed_gamma 1.0 }

background { color rgb <0.70, 0.85, 1.00> }

// ---------- Camera ----------
camera {
  location <20, 14, -26>
  look_at  <0, 6, 0>
  angle 40
}

// ---------- Lights ----------
light_source { <80, 120, -60> color rgb <1.0, 0.98, 0.92> }
light_source { <-40, 30, -20> color rgb <0.25, 0.30, 0.35> }

// ---------- Ground ----------
plane {
  y, 0
  texture {
    pigment { color rgb <0.82, 0.84, 0.86> }
    finish  { diffuse 0.85 specular 0.05 roughness 0.08 }
  }
}

// ---------- Materials ----------
#declare Mat_Concrete =
texture {
  pigment { color rgb <0.86, 0.86, 0.88> }
  finish  { diffuse 0.8 specular 0.10 roughness 0.06 }
};

#declare Mat_DarkMetal =
texture {
  pigment { color rgb <0.18, 0.20, 0.23> }
  finish  { diffuse 0.6 specular 0.35 roughness 0.03 }
};

#declare Mat_Glass =
texture {
  pigment { color rgbt <0.45, 0.65, 0.80, 0.60> }
  finish  { diffuse 0.15 specular 0.65 roughness 0.01 reflection 0.10 }
};

// ---------- Helper: Window band ----------
#macro WindowBand(P1, P2, Thickness)
  box {
    P1, P2
    texture { Mat_Glass }
    translate <0, 0, Thickness>
  }
#end

// ---------- Plaza ----------
union {
  box { <-14, 0.02, -14>, <14, 0.25, 14> texture { Mat_Concrete } }
  box { <-10, 0.26, -10>, <10, 0.45, 10> texture { Mat_Concrete } }
  difference {
    box { <-11.5, 0.46, -11.5>, <11.5, 0.80, 11.5> }
    box { <-10.5, 0.45, -10.5>, <10.5, 0.81, 10.5> }
    texture { Mat_DarkMetal }
  }
}

// ---------- Complex building (simple primitives, complex arrangement) ----------
union {
  // Core mass
  box { <-4, 0.45, -3>, <4, 11.0, 3> texture { Mat_Concrete } }

  // Vertical recess strip (gives complexity)
  difference {
    box { <-4.15, 0.45, -3.15>, <4.15, 11.2, 3.15> }
    box { <-1.1, 1.0, -3.4>, <1.1, 10.6, 3.4> }
    texture { Mat_Concrete }
    pigment { color rgb <0.88, 0.88, 0.90> }
  }

  // Windows on core (front and sides)
  box { <-3.7, 1.2, -3.02>, <3.7, 10.7, -2.90> texture { Mat_Glass } }
  box { <-4.02, 1.5, -2.7>, <-3.90, 10.4, 2.7> texture { Mat_Glass } }
  box { <3.90, 1.5, -2.7>, <4.02, 10.4, 2.7> texture { Mat_Glass } }

  // Left tower (stepped)
  union {
    box { <-9, 0.45, -2.2>, <-4.4, 8.2, 2.2> texture { Mat_Concrete } }
    box { <-8.2, 8.2, -1.7>, <-5.0, 11.6, 1.7> texture { Mat_Concrete } }
    box { <-7.7, 11.6, -1.3>, <-5.5, 13.8, 1.3> texture { Mat_Concrete } }
    box { <-8.85, 1.2, -2.22>, <-4.55, 7.8, -2.10> texture { Mat_Glass } }
    box { <-8.05, 8.6, -1.72>, <-5.15, 11.2, -1.60> texture { Mat_Glass } }
  }

  // Right tower (cylindrical + cap)
  union {
    cylinder { <7.2, 0.45, 0>, <7.2, 10.8, 0>, 2.3 texture { Mat_Concrete } }
    cylinder { <7.2, 10.8, 0>, <7.2, 12.0, 0>, 2.5 texture { Mat_DarkMetal } }
    cylinder { <7.2, 1.2, 0>, <7.2, 10.4, 0>, 2.05 texture { Mat_Glass } }
  }

  // Skybridge connector
  union {
    box { <-4.2, 6.3, -1.4>, <4.2, 7.6, 1.4> texture { Mat_DarkMetal } }
    box { <-4.1, 6.45, -1.32>, <4.1, 7.45, -1.15> texture { Mat_Glass } }
    box { <-4.1, 6.45,  1.15>, <4.1, 7.45,  1.32> texture { Mat_Glass } }
  }

  // Lower annex (front)
  union {
    box { <-3.2, 0.45, -7.0>, <3.2, 4.0, -3.1> texture { Mat_Concrete } }
    box { <-2.9, 0.9, -6.98>, <2.9, 3.6, -6.85> texture { Mat_Glass } }
    box { <-3.25, 4.0, -7.05>, <3.25, 4.35, -3.05> texture { Mat_DarkMetal } }
  }

  // Roof mechanical frames (simple detail)
  union {
    box { <-3.6, 11.0, -2.6>, <-1.8, 12.6, -0.8> texture { Mat_DarkMetal } }
    box { < 1.8, 11.0,  0.8>, < 3.6, 12.4,  2.6> texture { Mat_DarkMetal } }
    cylinder { <0, 11.0, 0>, <0, 13.0, 0>, 0.55 texture { Mat_DarkMetal } }
  }

  translate <0, 0, 0>
}

// ---------- Simple surrounding columns (scale/context) ----------
#declare ColTex = texture { pigment { color rgb <0.60, 0.62, 0.65> } finish { diffuse 0.8 specular 0.05 } };

union {
  #declare i = -1;
  #while (i <= 1)
    cylinder { <-12, 0.25, i*6>, <-12, 4.0, i*6>, 0.45 texture { ColTex } }
    cylinder { < 12, 0.25, i*6>, < 12, 4.0, i*6>, 0.45 texture { ColTex } }
    #declare i = i + 1;
  #end
}