v4

light.py

@@ -13,7 +13,7 @@ def phong_illuminate(light, position, normal, object, viewer):
     R = 2*(L*N)*N - L
     V = (viewer - position).normalized()
 
-    i = kd*(L*N) + ks*(R*V)**alpha
+    i = ((kd*(L*N) + ks*(R*V)**alpha))*(N*L > 0)
     
     return i*(light.color ** object.material.color)
     

script_one_sphere.py

+from scene import *
+from light import Spotlight
+from camera import Camera
+from raytracer import raytracer_render
+from matplotlib.image import imsave
+
+camera = Camera(200,200,2)
+materiau_sphere = Material(Vector((0,0,1)), .1, .3, .8, 20)
+sphere = Sphere(Vector([0,0,3]), 1, materiau_sphere)
+lumiere = Spotlight(Vector((1, 1, 0)), Vector((1,1,1)))
+scene = Scene()
+scene.add_object(sphere)
+scene.add_light(lumiere)
+affiche = raytracer_render(camera, scene)
+imsave('one_sphere.png',affiche)