require "Vector"
local V = Vector

require "Primitives"
local P = Primitives

require "Operations"
local O = Operations

require "Textures"
local T = Textures

require "Render"

local lights = {V.new{3,-3,1}}

local scene = {
   sdf =
      O.union{
         O.diff{
            P.make_sphere(V.new{0,0,0}, 1,
                          T.make_phong_texture(lights,
                                               T.map_spherical(
                                                  T.make_solid_pigment({0,1,0}),
                                                  V.origin, 1, 1),
                                               0.2, 0.7, 1.0, 100)),
            P.make_sphere(V.new{0,0,0}, 0.8),
            P.make_pipe(V.new{0,0,0}, 0.5, V.new{0,1,0}),
            P.make_pipe(V.new{0,0,0}, 0.5, V.new{1,0,0})},

         P.make_plane(V.new{0,0,-1.0}, V.new{0,0,1},
                      T.make_phong_texture(lights,
                                           T.map_rectangular(
                                              T.make_checkered_pigment({0.5,0,0.2}, {1,1,1}),
                                              V.x, V.y),
                                           0.2, 1.0, 0, 1))},
                               
   camera = {location = V.new{2,-5,1},
             point_at = V.new{0,0,0},
             right = V.x,
             fov = 1}}

Render.render(scene, 1280, 960, "holy_sphere.ppm")