def test_intersection_points_3(self):
s1 = data.Sphere(data.Point(2, 2, 2), math.sqrt(3),
data.Color(0, 1, 0), data.Finish(.2, 1, 0, 0))
s2 = data.Sphere(data.Point(-2, -2, 3), 1, data.Color(0, 1, 0),
data.Finish(0.2, 1, 0, 0))
s3 = data.Sphere(data.Point(0, 3, 0), 3 * math.sqrt(2),
data.Color(0, 1, 0), data.Finish(.2, 1, 0, 0))
ray = data.Ray(data.Point(0, 0, 0), data.Vector(1, 1, 1))
s_list = [s1, s2, s3]
result_list = [(s1, data.Point(1, 1, 1)), (s3, data.Point(3, 3, 3))]
self.assertEqual(collisions.find_intersection_points(s_list, ray),
result_list)
def test_intersection_points_2(self):
s1 = data.Sphere(data.Point(2, 0, 2), 2, data.Color(0, 1, 0),
data.Finish(.2, 1, 0, 0))
s2 = data.Sphere(data.Point(0, 2, 4), 2, data.Color(0, 1, 0),
data.Finish(.2, 1, 0, 0))
s3 = data.Sphere(data.Point(2, 2, 0), 2, data.Color(0, 1, 0),
data.Finish(.2, 1, 0, 0))
ray = data.Ray(data.Point(0, 0, -6), data.Vector(0, 0, 1))
s_list = [s1, s2, s3]
result_list = [(s1, data.Point(0, 0, 2)), (s2, data.Point(0, 0, 4))]
self.assertEqual(collisions.find_intersection_points(s_list, ray),
result_list)
def test1(self):
result = commandline.process_cmdArguments(
['', 'test_file', '-ambient', '0.9', '0.9', '0.9'])
sphere1 = data.Sphere(data.Point(1, 1, 0), 2, data.Color(1, 0, 1),
data.Finish(0.2, 0.4, 0.5, 0.05))
sphere2 = data.Sphere(data.Point(8, -10, 110), 100,
data.Color(0.2, 0.2, 0.6),
data.Finish(0.4, 0.8, 0, 0.05))
check = (data.Light(data.Point(-100, 100, -100),
data.Color(1.5, 1.5, 1.5)),
data.Color(0.9, 0.9, 0.9), [sphere1, sphere2])
self.assertEqual(result, check)
def test_collides_with_spheres_1(self):
s = data.Sphere(data.Point(0.0, 0.0, 0.0), 2.0,
data.Color(1.0, 0.0, 0.0),
data.Finish(.2, .4, .5, .05))
s1 = data.Sphere(data.Point(5.0, 5.0, 5.0), 2.0,
data.Color(1.0, 0.0, 0.0),
data.Finish(.2, .4, .5, .05))
ray = data.Ray(data.Point(-5, 0, 0), data.Vector(1, 0, 0))
light = data.Light(data.Point(0, 0, -14), data.Color(1, 1, 1))
expected = False
self.assertEqual(
cast.collides_with_spheres(ray, [s, s1], data.Point(-3, -3, -3),
light), expected)
def test_get_difuse_color_2(self):
light = data.Light(data.Point(-5.0, 10.0, -10.0),
data.Color(1.5, 1.5, 1.5))
a = data.Sphere(data.Point(0, 0, 0), 4.0, data.Color(.5, 0.3, .8),
data.Finish(.2, .4, .5, .05))
b = data.Sphere(data.Point(.5, 1.5, -3.0),
.5, data.Color(1.0, 0.0, 0.0),
data.Finish(.4, .4, .5, .05))
list = [a, b]
t = (a, data.Point(2.0, 0, 0))
result = cast.get_diffuse_color(t, light, list)
expected = data.Color(0, 0, 0)
self.assertEqual(result, expected)
def test_get_color_2(self):
ambient = data.Color(.2, .2, .2)
light = data.Light(data.Point(-100.0, 100.0, -100.0),
data.Color(1.5, 1.5, 1.5))
a = data.Sphere(data.Point(0, 0, 0), 2.0, data.Color(.5, 0.3, .8),
data.Finish(.2, .4, .5, .05))
b = data.Sphere(data.Point(.5, 1.5, -3.0),
.5, data.Color(1.0, 0.0, 0.0),
data.Finish(.4, .4, .5, .05))
list = [a, b]
t = (a, data.Point(2.0, 0, 0))
result = cast.get_color(a.color, ambient, t, light, list)
expected = data.Color(0.02, 0.012, 0.032)
self.assertEqual(result, expected)
def test_sphere_2(self):
point2 = data.Point(0, -1, -2.0)
color2 = data.Color(0, 1, 0)
finish2 = data.Finish(0.2, 1, 0, 0)
sphere2 = data.Sphere(point2, 2.5, color2, finish2)
self.assertAlmostEqual(sphere2.center.x, 0)
self.assertAlmostEqual(sphere2.center.y, -1)
self.assertAlmostEqual(sphere2.center.z, -2.0)
self.assertEqual(sphere2.center, point2)
self.assertAlmostEqual(sphere2.radius, 2.5)
self.assertEqual(point2, data.Point(0, -1, -2))
self.assertEqual(
sphere2,
data.Sphere(data.Point(0, -1, -2), 2.5, data.Color(0, 1, 0),
data.Finish(0.2, 1, 0, 0)))
def test_sphere(self):
point = data.Point(1, 2, 3)
color = data.Color(0, 0, 0)
finish = data.Finish(0.2, 1, 0, 0)
sphere = data.Sphere(point, 1.0, color, finish)
self.assertAlmostEqual(sphere.center.x, 1)
self.assertAlmostEqual(sphere.center.y, 2)
self.assertAlmostEqual(sphere.center.z, 3)
self.assertEqual(sphere.center, point)
self.assertAlmostEqual(sphere.radius, 1.0)
self.assertEqual(sphere.center, data.Point(1, 2, 3))
self.assertEqual(
sphere,
data.Sphere(data.Point(1, 2, 3), 1, data.Color(0, 0, 0),
data.Finish(.2, 1, 0, 0)))
def test_computePe2(self):
result = auxiliary.compute_Pe(
(data.Sphere(data.Point(0.0, 2.0, 0.0), 1.0, data.Color(1, 1, 1),
data.Finish(0.5, 0.4, 0.5,
0.05)), data.Point(0, 1, 0)))
check = data.Point(0, 0.99, 0)
self.assertEqual(result, check)
def test_normal_point_3(self):
sphere = data.Sphere(data.Point(1, -2, 2), 3, data.Color(0, 1, 0),
data.Finish(.2, 1, 0, 0))
point = data.Point(0, 0, 0)
l = 3.0
vec = data.Vector(-1 / l, 2 / l, -2 / l)
self.assertEqual(collisions.sphere_normal_at_point(sphere, point), vec)
self.assertAlmostEqual(vector_math.length_vector(vec), 1)
def test_cast_ray2(self):
spheres = [
data.Sphere(data.Point(6.0, 0.0, 0.0), 1.0, data.Color(1, 0, 0),
data.Finish(0.5, 0.4, 0.5, 0.05)),
data.Sphere(data.Point(0.0, 5.0, 0.0), 1.0, data.Color(0, 0, 1),
data.Finish(0.5, 0.4, 0.5, 0.05)),
data.Sphere(data.Point(0.0, -4.0, 0.0), 1.0, data.Color(0, 1, 0),
data.Finish(0.5, 0.4, 0.5, 0.05)),
data.Sphere(data.Point(0.0, 8.0, 0.0), 1.0, data.Color(0, 0, 0),
data.Finish(0.5, 0.4, 0.5, 0.05))
]
ray = data.Ray(data.Point(0.0, 0.0, 0.0), data.Vector(0.0, 1.0, 0.0))
result = cast.cast_ray(
ray, spheres, data.Color(1, 1, 1),
data.Light(data.Point(-100.0, 100.0, -100.0),
data.Color(1.5, 1.5, 1.5)), data.Point(0, 0, -14))
self.assertEqual(result, data.Color(0, 0, 0.5))
def test_get_pE_2(self):
sphere = data.Sphere(data.Point(0.0, 0.0, 0.0), 2.0,
data.Color(0.0, 0.0, 1.0),
data.Finish(.2, .4, .5, .05))
tuple = (sphere, data.Point(0, 2, 0))
pe = cast.get_pe(tuple)
expected = data.Point(0, 2.01, 0)
self.assertEqual(pe, expected)
def test_calculateColor2(self):
result = auxiliary.calculate_color(
data.Sphere(data.Point(0.0, 2.0, 0.0), 1.0, data.Color(1, 1, 1),
data.Finish(0.5, 0.4, 0.5, 0.05)), data.Color(1, 1, 1),
1, 1,
data.Light(data.Point(-100.0, 100.0, -100.0),
data.Color(1.5, 1.5, 1.5)))
check = data.Color(1.85, 1.85, 1.85)
self.assertEqual(result, check)
def test_cast_ray(self):
sph1 = data.Sphere(data.Point(0, 3, 3), 5, data.Color(1.0, 1.0, 0.0), \
data.Finish(0.5, 0.4, 0.5, 0.05))
sph2 = data.Sphere(data.Point(5, 1, 2), 2, data.Color(0.0, 1.0, 1.0), \
data.Finish(0.9, 0.4, 0.5, 0.05))
sph3 = data.Sphere(data.Point(2, 2, 2), 4, data.Color(1.0, 0.0, 1.0), \
data.Finish(0.8, 0.4, 0.5, 0.05))
N = [sph1, sph2, sph3]
ray1 = data.Ray(data.Point(4, 4, 4), data.Vector(-2, -2, -2))
self.assertTrue(cast.cast_ray(ray1, N, 0.8, data.Light(data.Point(-100.0, \
100.0, -100.0), data.Color(1.5, 1.5, 1.5)), data.Point(0.0, 0.0, -14.0)), \
data.Color(0.8, 0.8, 0.8))
ray2 = data.Ray(data.Point(3, 5, 1), data.Vector(-3, 1, 4))
self.assertTrue(cast.cast_ray(ray2, N, 0.5, data.Light(data.Point(-100.0, \
100.0, -100.0), data.Color(1.5, 1.5, 1.5)), data.Point(0.0, 0.0, -14.0)), \
data.Color(1.0, 1.0, 1.0))
def create_sphere(list, i):
try:
cen = data.Point(float(list[0]), float(list[1]), float(list[2]))
rad = float(list[3])
color = data.Color(float(list[4]), float(list[5]), float(list[6]))
finish = data.Finish(float(list[7]), float(list[8]), float(list[9]), \
float(list[10]))
return data.Sphere(cen, rad, color, finish)
except:
print 'malformed sphere in line', i, '... skipping'
def test_get_diffuse_2(self):
lDir = 2
light = data.Light(data.Point(-100.0, 100.0, -100.0),
data.Color(1.5, 1.5, 1.5))
s = data.Sphere(data.Point(1.0, 1.0, 0.0), 2.0,
data.Color(0.0, 0.0, 1.0),
data.Finish(.2, .4, .5, .05))
diffuse = .4
expected = data.Color(0, 0, 1.2)
self.assertEqual(cast.get_diffuse(lDir, light, s, diffuse), expected)
def test_closestSphere1(self):
spheres = [
data.Sphere(data.Point(0.0, 2.0, 0.0), 1.0, data.Color(1, 0, 0),
data.Finish(0.5, 0.4, 0.5, 0.05)),
data.Sphere(data.Point(0.0, 5.0, 0.0), 1.0, data.Color(0, 0, 1),
data.Finish(0.5, 0.4, 0.5, 0.05)),
data.Sphere(data.Point(0.0, 4.0, 0.0), 1.0, data.Color(0, 1, 0),
data.Finish(0.5, 0.4, 0.5, 0.05)),
data.Sphere(data.Point(0.0, 8.0, 0.0), 1.0, data.Color(0, 0, 0),
data.Finish(0.5, 0.4, 0.5, 0.05))
]
ray = data.Ray(data.Point(0.0, 0.0, 0.0), data.Vector(0.0, 1.0, 0.0))
intersected_spheres = collisions.find_intersection_points(spheres, ray)
result = auxiliary.closest_sphere(intersected_spheres, ray)
check = (data.Sphere(data.Point(0.0, 2.0, 0.0), 1.0,
data.Color(1, 0, 0),
data.Finish(0.5, 0.4, 0.5,
0.05)), data.Point(0, 1, 0))
self.assertEqual(result, check)
def create_picture(): eyept = data.Point(0.0, 0.0, -14.0) sph1 = data.Sphere(data.Point(1.0, 1.0, 0.0), 2.0, data.Color(0.0, 0.0, \ 1.0), data.Finish(0.2, 0.4, 0.5, 0.05)) sph2 = data.Sphere(data.Point(0.5, 1.5, -3.0), 0.5, data.Color(1.0, 0.0, \ 0.0), data.Finish(0.4, 0.4, 0.5, 0.05)) S = [sph1, sph2] min_x = -10 max_x = 10 min_y = -7.5 max_y = 7.5 width = 1024 height = 768 ambient = 1.0 light = data.Light(data.Point(-100.0, 100.0, -100.0), data.Color(1.5, 1.5, \ 1.5)) cast.cast_all_rays(min_x, max_x, min_y, max_y, width, height, eyept, S, \ ambient, light)
def test_calculate_light_component2(self):
spheres = [
data.Sphere(data.Point(1, 1, 0), 2, data.Color(0, 0, 1),
data.Finish(0.2, 0.4, 0.5, 0.05)),
data.Sphere(data.Point(0.5, 1.5, -3), 0.5, data.Color(1, 0, 0),
data.Finish(0.2, 0.4, 0.5, 0.05))
]
intersection_pt = collisions.sphere_intersection_point(
data.Ray(data.Point(0, 0, -14), data.Vector(0.5, 1.5, 11)),
data.Sphere(data.Point(0.5, 1.5, -3), 0.5, data.Color(1, 0, 0),
data.Finish(0.2, 0.4, 0.5, 0.05)))
eye_pt = data.Point(0, 0, -14)
light = data.Light(data.Point(-100.0, 100.0, -100.0),
data.Color(1.5, 1.5, 1.5))
result = auxiliary.calculate_light_components(
(data.Sphere(data.Point(0.5, 1.5, -3), 0.5, data.Color(1, 0, 0),
data.Finish(0.2, 0.4, 0.5, 0.05)), intersection_pt),
spheres, eye_pt, light)
check = (0.5082198628016603, 0.5082198628016605)
self.assertEqual(result, check)
def process_line(line):
val_list = line.strip().split()
float_list = []
if len(val_list) != 11:
raise RuntimeError("The input file is not properly formatted")
for i in range(len(val_list)):
float_list.append(float(val_list[i]))
return data.Sphere(
data.Point(float_list[0], float_list[1], float_list[2]), float_list[3],
data.Color(float_list[4], float_list[5], float_list[6]),
data.Finish(float_list[7], float_list[8], float_list[9],
float_list[10]))
def test_cast_ray_1(self):
sphere_list = [
data.Sphere(data.Point(0, 0, 0), 1, data.Color(0, 0, 0),
data.Finish(.2, 1, 0, 0))
]
ray = data.Ray(data.Point(0, 0, -15), data.Vector(0, 0, 1))
light = data.Light(data.Point(0, 0, 3), data.Color(1, 1, 1))
ambient_color = data.Color(1, 1, 1)
eye_point = data.Point(0, 0, -14)
calc_color = cast.cast_ray(ray, sphere_list, ambient_color, light,
eye_point)
exp_color = data.Color(0, 0, 0)
self.assertEqual(calc_color, exp_color)
def get_sphere(line,line_num):
l = line.split()
try:
return data.Sphere(data.Point(float(l[0]),float(l[1]),
float(l[2])),
float(l[3]),
data.Color(float(l[4]),float(l[5]),
float(l[6])),
data.Finish(float(l[7]),float(l[8]),
float(l[9]),float(l[10])))
except:
print ('malformed sphere on line ' + str(line_num) +
'... skipping')
def test_get_specular_intensity_2(self):
lDir = data.Vector(.5, 10, 3)
lDirection = 3
N = data.Vector(2, 2, 3)
pE = data.Point(2, 3, -3)
light = data.Light(data.Point(0, 0, -14), data.Color(1.5, 1.5, 1.5))
sphere = data.Sphere(data.Point(0.0, 0.0, 0.0), 1.0,
data.Color(1.0, .5, 1.0),
data.Finish(.2, .4, .5, .05))
result = cast.get_specular_intensity(lDir, lDirection, N, pE, light,
sphere)
expected = data.Color(0, 0, 0)
self.assertEqual(result, expected)
def get_sphere(l):
if not len(l) == 11:
print "ERROR-- Number of arugements is incorrect: ", len(l)
else:
try:
point = data.Point(float(l[0]), float(l[1]), float(l[2]))
radius = float(l[3])
color = data.Color(float(l[4]), float(l[5]), float(l[6]))
finish = data.Finish(float(l[7]), float(l[8]), float(l[9]),
float(l[10]))
except:
print "ERROR-- Something went wrong while parsing spheres"
return data.Sphere(point, radius, color, finish)
def test_normal_point_1(self):
sphere = data.Sphere(data.Point(0, 0, 0), 5, data.Color(0, 1, 0),
data.Finish(.2, 1, 0, 0))
point_x = data.Point(5, 0, 0)
point_y = data.Point(0, 5, 0)
point_z = data.Point(0, 0, 5)
vec_x = data.Vector(1, 0, 0)
vec_y = data.Vector(0, 1, 0)
vec_z = data.Vector(0, 0, 1)
self.assertEqual(collisions.sphere_normal_at_point(sphere, point_x),
vec_x)
self.assertEqual(collisions.sphere_normal_at_point(sphere, point_y),
vec_y)
self.assertEqual(collisions.sphere_normal_at_point(sphere, point_z),
vec_z)
def test_cast_ray_1(self):
pt = data.Point(0,0,0)
dir = data.Vector(0,0,1)
ray = data.Ray(pt,dir)
center_1 = data.Point(12,0,0)
center_2 = data.Point(0,5,0)
center_3 = data.Point(5,0,0)
center_4 = data.Point(50,0,0)
radius = 2
color = data.Color(1,0,.1)
finish = data.Finish(1,.2,1,1)
light = data.Light(data.Color(1.5,1.5,1.5),data.Point(0,0,0))
eye_point = data.Point(1,1,1)
sphere_list = [data.Sphere(center_1,radius,color,finish),data.Sphere(center_2,radius,color,finish),data.Sphere(center_3,radius,color,finish),data.Sphere(center_4,radius,color,finish)]
test_cast_ray_1 = cast.cast_ray(ray,sphere_list,finish,light,eye_point)
self.assertTrue(test_cast_ray_1 == data.Color(1,1,1))
def test_cast_ray_2(self):
pt = data.Point(0,0,0)
dir = data.Vector(0,1,0)
ray = data.Ray(pt,dir)
center_1 = data.Point(0,0,5)
center_2 = data.Point(0,5,0)
center_3 = data.Point(5,0,0)
radius = 2
color = data.Color(0,1,0)
color_1 = data.Color(0,0,0)
finish = data.Finish(1,1,1,1)
light = data.Light(data.Point(1,1,1),data.Color(1,1,1))
eye_point = data.Point(1,1,1)
ambient = data.Color(1,1,1)
sphere_list = [data.Sphere(center_1,radius,color_1,finish),data.Sphere(center_2,radius,color,finish),data.Sphere(center_3,radius,color_1,finish)]
test_cast_ray_2 = cast.cast_ray(ray,sphere_list,ambient,light,eye_point)
self.assertTrue(test_cast_ray_2 == data.Color(0.328870320968,2.14399924358,0.328870320968))
def test_cast_ray_1(self):
finish = data.Finish(.4, .4, .5, .05)
one = data.Sphere(data.Point(2, 2, 0), 1.0, data.Color(.4, .2, .1),
finish)
two = data.Sphere(data.Point(6, 6, 0), 2.0, data.Color(.2, .3, .5),
finish)
three = data.Sphere(data.Point(-2, -2, 0), 1.0, data.Color(1, 1, 1),
finish)
four = data.Sphere(data.Point(-6, -6, 0), 15.0, data.Color(.5, .5, .5),
finish)
ray = data.Ray(data.Point(0, 0, -14), data.Vector(0, 0, 1))
l = [one, two, three, four]
light = data.Light(data.Point(0, 0, -14), data.Color(1.5, 1.5, 1.5))
ambient_color = data.Color(.2, .2, .2)
result = cast.cast_ray(ray, l, ambient_color, light,
data.Point(0, 0, -14))
expected = data.Color(0.286793135633, 0.286793135633, 0.286793135633)
self.assertEqual(result, expected)
def read_file(file_name):
count = 0
list_of_spheres = []
for line in file_name:
count += 1
a = line.split()
if len(a) != 11:
print "malformed sphere on line ", count, " ...skipping"
else:
try:
sphere_center = data.Point(float(a[0]), float(a[1]),
float(a[2]))
sphere_radius = float(a[3])
sphere_color = data.Color(float(a[4]), float(a[5]),
float(a[6]))
sphere_finish = data.Finish(float(a[7]), float(a[8]),
float(a[9]), float(a[10]))
sphere_complete = data.Sphere(sphere_center, sphere_radius,
sphere_color, sphere_finish)
list_of_spheres.append(sphere_complete)
except:
print "malformed sphere on line ", count, "...skipping"
return list_of_spheres
import unittest
import data
import cast
import collisions
import vector_math
a = data.Sphere(data.Point(0.0, 0.0, 0.0), 2.0, data.Color(0.0, 0.0, 1.0),
data.Finish(.2, .4, .5, .05))
t = (a, data.Point(0, 2, 0))
pe = cast.get_pe(t)
sphere = data.Sphere(data.Point(0, 0, 0), 2.0, data.Color(0, 0, 0),
data.Finish(.2, .4, .5, .05))
N = data.Vector(0, 0, 0)
V = data.Vector(5, 5, 5)
s = vector_math.dot_vector(N, V)
print s
print "%f %f %f" % (pe.x, pe.y, pe.z)
