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{1,-1,1}}

local plane_normal = V.normalize(V.new{0.0,-1,0.0})
local texture_y = V.normalize(V.cross(plane_normal,V.x))
local texture_x = V.cross(texture_y,plane_normal)

local scene = {
   sdf = P.make_plane(V.new{0,0,0}, plane_normal,
                      T.make_phong_texture(lights,
                                           T.map_rectangular(
                                              T.make_rainbow_pigment(0.1),
                                              texture_x, texture_y),
                                           0.2, 1.0, 0, 1)),

   camera = {location = V.new{-0.5,-5,0},
             point_at = V.new{-0.5,0,0},
             right = V.x,
             fov = 1}}

Render.render(scene, 320, 200, "out/rainbow_wall.ppm")