def test_sample_point_in_sphere():
for distance in range(1, 100):
distance = distance + np.random.rand()
point = sample_point_in_sphere(distance, top_only=True)
assert point[1] > 0 # tests top
assert np.isclose(calculate_norm(point), distance)
norm = calculate_norm(sample_point_in_sphere(distance, top_only=False))
assert np.isclose(norm, distance)
def _sample_parameters(self):
distance = sample_uniformly(self.distance)
camera_origin = sample_point_in_sphere(distance, self.top_only)
camera_origin = random_perturbation(camera_origin, self.epsilon)
light_intensity = sample_uniformly(self.light_intensity)
return camera_origin, light_intensity
def _sample_camera_origin(self):
distance = sample_uniformly(self.distance)
camera_origin = sample_point_in_sphere(distance, self.top_only)
camera_origin = random_perturbation(camera_origin, self.epsilon)
return camera_origin