from raytracer.shapes import Sphere, Plane
from raytracer.tuples import Color, Point, Vector
if __name__ == '__main__':
floor = Plane()
floor.material = Material()
floor.material.color = Color(1, 0.9, 0.9)
floor.material.specular = 0
middle = Sphere()
middle.transformation = translation(-0.5, 1, 0.5)
middle.material = Material()
middle.material.pattern = CheckersPattern(Color(0.1, 1, 0.5),
Color(1, 0, 0))
middle.material.pattern.transformation = scaling(0.25, 0.25,
0.5) * rotation_y(pi / 4)
middle.material.diffuse = 0.7
middle.material.specular = 0.3
right = Sphere()
right.transformation = translation(1.5, 0.5, -0.5) * scaling(0.5, 0.5, 0.5)
right.material = Material()
right.material.color = Color(0.5, 1, 0.1)
right.material.diffuse = 0.7
right.material.specular = 0.3
left = Sphere()
left.transformation = translation(-1.5, 0.33, -0.75) * scaling(
0.33, 0.33, 0.33)
left.material = Material()
left.material.color = Color(1, 0.8, 0.1)
def test_construct_ray_when_camera_is_transformed(self):
c = Camera(201, 101, pi / 2)
c.transformation = rotation_y(pi / 4) * translation(0, -2, 5)
r = c.ray_for_pixel(100, 50)
assert r.origin == Point(0, 2, -5)
assert r.direction == Vector(sqrt(2) / 2, 0, -sqrt(2) / 2)
from raytracer.lights import PointLight
from raytracer.patterns import *
from raytracer.matrices import scaling, rotation_x, rotation_y, rotation_z, translation, view_transform
from raytracer.scene import World
from raytracer.shapes import Cylinder, Plane
from raytracer.tuples import Color, Point, Vector
if __name__ == '__main__':
floor = Plane()
floor.material.color = Color(.8, .8, .8)
floor.material.reflective = .2
cylinder = Cylinder(closed=True)
cylinder.maximum = 0.25
cylinder.material.color = Color(.8, 0, 0)
cylinder.material.reflective = .6
cylinder.transformation = translation(0, 1, 0)
world = World()
world.add(floor, cylinder)
world.light_source = PointLight(Point(-10, 10, -10), Color.white())
camera = Camera(160, 120, pi / 3)
camera.transformation = view_transform(Point(0, 1.5, -5), Point(
0, 1, 0), Vector(0, 1, 0)) * rotation_y(-pi / 4) * rotation_x(-pi / 6)
canvas = camera.render(world)
write_ppm_to_file(canvas.to_ppm(),
f'..{sep}..{sep}resources{sep}cylinders.ppm')
from raytracer.canvas import write_ppm_to_file
from raytracer.lights import PointLight
from raytracer.patterns import *
from raytracer.matrices import scaling, rotation_y, rotation_z, translation, view_transform
from raytracer.scene import World
from raytracer.shapes import Cube, Plane
from raytracer.tuples import Color, Point, Vector
if __name__ == '__main__':
floor = Plane()
floor.material.color = Color(.8, .8, .8)
floor.material.reflective = .2
cube = Cube()
cube.material.color = Color(.8, 0, 0)
cube.material.reflective = .6
cube.transformation = translation(0, 1, 0) * rotation_y(pi / 4)
world = World()
world.add(floor, cube)
world.light_source = PointLight(Point(-10, 10, -10), Color.white())
camera = Camera(160, 120, pi / 3)
camera.transformation = view_transform(Point(0, 1.5, -5), Point(0, 1, 0),
Vector(0, 1, 0))
canvas = camera.render(world)
write_ppm_to_file(canvas.to_ppm(),
f'..{sep}..{sep}resources{sep}cubes.ppm')
def test_rotate_point_around_y_axis(self):
p = Point(0, 0, 1)
half_quarter = rotation_y(math.pi / 4)
full_quarter = rotation_y(math.pi / 2)
assert half_quarter * p == Point(math.sqrt(2) / 2, 0, math.sqrt(2) / 2)
assert full_quarter * p == Point(1, 0, 0)
from raytracer.materials import Material
from raytracer.matrices import scaling, rotation_y, rotation_x, translation, view_transform
from raytracer.scene import World
from raytracer.shapes import Sphere
from raytracer.tuples import Color, Point, Vector
if __name__ == '__main__':
floor = Sphere()
floor.transformation = scaling(10, 0.01, 10)
floor.material = Material()
floor.material.color = Color(1, 0.9, 0.9)
floor.material.specular = 0
left_wall = Sphere()
left_wall.transformation = translation(0, 0, 5) * \
rotation_y(-pi / 4) * rotation_x(pi / 2) * \
scaling(10, 0.01, 10)
left_wall.material = floor.material
right_wall = Sphere()
right_wall.transformation = translation(0, 0, 5) * \
rotation_y(pi / 4) * rotation_x(pi / 2) * \
scaling(10, 0.01, 10)
right_wall.material = floor.material
middle = Sphere()
middle.transformation = translation(-0.5, 1, 0.5)
middle.material = Material()
middle.material.color = Color(0.1, 1, 0.5)
middle.material.diffuse = 0.7
middle.material.specular = 0.3