from matrix import Matrix
from canvas import Canvas
from point import Point
from color import Color
from ray import Ray
from sphere import Sphere
if __name__ == '__main__':
pixel_size = 100
WIDTH = 100
HEIGHT = 100
c = Canvas(WIDTH, HEIGHT, Color(0.5, 0.5, 0.5))
sphere = Sphere(Point(0, 0, 0), radius=1)
sphere.set_transform(
rotate_z(pi / 6) * scale(1, 0.5, 1) * shear(1, 0, 0, 0, 0, 0))
camera = Point(0, 0, -5)
wall_z = 10
wall_size = 7
canvas_pixels = 100
pixel_size = wall_size / canvas_pixels
half = wall_size / 2
for j in range(HEIGHT):
print(j)
y = half - pixel_size * j
for i in range(WIDTH):
x = -half + pixel_size * i
target = Point(x, y, wall_z)
ray = Ray(camera, (target - camera).normalize())
intersections = sphere.intersect(ray)
def test_shear5(self):
p = Point(2, 3, 4)
s = shear(0, 0, 0, 0, 1, 0)
self.assertTrue(Point(2, 3, 6).equals(s * p))
def test_shear6(self):
p = Point(2, 3, 4)
s = shear(0, 0, 0, 0, 0, 1)
self.assertTrue(Point(2, 3, 7).equals(s * p))
def test_shear1(self):
p = Point(2, 3, 4)
s = shear(1, 0, 0, 0, 0, 0)
self.assertTrue(Point(5, 3, 4).equals(s * p))