holy_sphere.lua

   1 require "Vector"
   2 local V = Vector
   3
   4 require "Primitives"
   5 local P = Primitives
   6
   7 require "Operations"
   8 local O = Operations
   9
  10 require "Textures"
  11 local T = Textures
  12
  13 require "Render"
  14
  15 local lights = {V.new{3,-3,1}}
  16
  17 local scene = {
  18    sdf =
  19       O.union{
  20          O.diff{
  21             P.make_sphere(V.new{0,0,0}, 1,
  22                           T.make_phong_texture(lights,
  23                                                T.map_spherical(
  24                                                   T.make_solid_pigment({0,1,0}),
  25                                                   V.origin, 1, 1),
  26                                                0.2, 0.7, 1.0, 100)),
  27             P.make_sphere(V.new{0,0,0}, 0.8),
  28             P.make_pipe(V.new{0,0,0}, 0.5, V.new{0,1,0}),
  29             P.make_pipe(V.new{0,0,0}, 0.5, V.new{1,0,0})},
  30
  31          P.make_plane(V.new{0,0,-1.0}, V.new{0,0,1},
  32                       T.make_phong_texture(lights,
  33                                            T.map_rectangular(
  34                                               T.make_checkered_pigment({0.5,0,0.2}, {1,1,1}),
  35                                               V.x, V.y),
  36                                            0.2, 1.0, 0, 1))},
  37
  38    camera = {location = V.new{2,-5,1},
  39              point_at = V.new{0,0,0},
  40              right = V.x,
  41              fov = 1}}
  42
  43 Render.render(scene, 1280, 960, "holy_sphere.ppm")