commentaires et carré

scenes/one_sphere.py

+# -*- coding: utf-8 -*-
+
 # Show to python where to find the modules
 import sys
 sys.path.append('..')

scenes/square.py

+# Show to python where to find the modules
+import sys
+sys.path.append('..')
+
+from camera import Camera
+from scene import *
+from light import *
+from raytracer import *
+import numpy as np
+from matplotlib.image import imsave
+import itertools
+import multiprocessing
+
+def trace_ray_mutliprocess(t):
+    (i, j, camera, scene, nb_reflexion) = t
+    return np.array(trace_ray(camera.ray_at(i, j), scene, camera, nb_reflexion).coord())
+
+(nx, ny, nb_reflexion) = (200, 200, 20)
+camera = Camera(nx, ny, 1)
+materiau_sphere_blanche = Material(Vector([1,1,1]), 0.2, 1, 1, 20, 0)
+v0 = Vector([-1,-1,2])
+v1 = Vector([1,-1,2])
+v2 = Vector([-1,1,2])
+v3 = Vector([1,1,2])
+carre_blanc = Quad(v0,v1,v2,v3,materiau_sphere_blanche)
+scene = Scene()
+lumiere = Spotlight(Vector([0,0,0]), Vector([0,0,1]))
+scene.add_object(carre_blanc)
+scene.add_light(lumiere)
+affiche = np.zeros((nx, ny, 3))
+rows = list(range(nx))
+columns = list(range(ny))
+carte = list(itertools.product(rows, columns, [camera], [scene], [nb_reflexion]))
+
+if __name__ == '__main__':
+    pool = multiprocessing.Pool(4)
+    affiche_map = pool.map(trace_ray_mutliprocess, carte)
+    pool.close()
+    pool.join()
+    affiche = np.array(affiche_map).reshape(nx, ny, 3)
+    imsave('carré.png', affiche)

scenes/with_multiprocessing.py

+# Show to python where to find the modules
+import sys
+sys.path.append('..')
+
+from camera import Camera
+from scene import *
+from light import *
+from raytracer import *
+import numpy as np
+from matplotlib.image import imsave
+import itertools
+import multiprocessing
+
+def trace_ray_mutliprocess(t):
+    (i, j, camera, scene, nb_reflexion) = t
+    return np.array(trace_ray(camera.ray_at(i, j), scene, camera, nb_reflexion).coord())
+
+(nx, ny, nb_reflexion) = (1000, 1000, 20)
+camera = Camera(nx, ny, 1)
+materiau_sphere_bleue = Material(Vector([0,0,1.]), .5, .5, .5, 1000,.1)
+materiau_sphere_rouge = Material(Vector([1,0,0]), .5, .5, .5, 1000, .3)
+sphere_bleue = Sphere(Vector([0,0,3]), .8, materiau_sphere_bleue)
+sphere_rouge = Sphere(Vector([.5,.5,2]), .5, materiau_sphere_rouge)
+scene = Scene()
+lumiere = Spotlight(Vector([1,1,0]), Vector([1,1,1]))
+scene.add_object(sphere_bleue)
+scene.add_object(sphere_rouge)
+scene.add_light(lumiere)
+affiche = np.zeros((nx, ny, 3))
+rows = list(range(nx))
+columns = list(range(ny))
+carte = list(itertools.product(rows, columns, [camera], [scene], [nb_reflexion]))
+
+if __name__ == '__main__':
+    pool = multiprocessing.Pool(4)
+    affiche_map = pool.map(trace_ray_mutliprocess, carte)
+    pool.close()
+    pool.join()
+    affiche = np.array(affiche_map).reshape(nx, ny, 3)
+    imsave('two_spheres_processing.png', affiche)