rainbow_wall.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{1,-1,1}}
  16
  17 local plane_normal = V.normalize(V.new{0.0,-1,0.0})
  18 local texture_y = V.normalize(V.cross(plane_normal,V.x))
  19 local texture_x = V.cross(texture_y,plane_normal)
  20
  21 local scene = {
  22    sdf = P.make_plane(V.new{0,0,0}, plane_normal,
  23                       T.make_phong_texture(lights,
  24                                            T.map_rectangular(
  25                                               T.make_rainbow_pigment(0.1),
  26                                               texture_x, texture_y),
  27                                            0.2, 1.0, 0, 1)),
  28
  29    camera = {location = V.new{-0.5,-5,0},
  30              point_at = V.new{-0.5,0,0},
  31              right = V.x,
  32              fov = 1}}
  33
  34 Render.render(scene, 320, 200, "out/rainbow_wall.ppm")