def floor_material():
material = Material()
material.color = Color(1, .9, .9)
material.specular = 0
material.pattern = stripe_pattern(RED, BLUE)
material.pattern.transform = Scaling(.2, .2, .2) * rotation_z(math.pi / 4)
return material
def main():
shape = ClippedShape(crooked_plane())
#shape.transform = ReflectionXZ()
shape.material = Material()
shape.material.color = Color(1, .2, 1)
objects = (shape, )
draw_objects(objects)
def main(resolution):
logging.basicConfig(
level=logging.INFO,
format=
'%(asctime)s %(levelname)s %(filename)s:%(lineno)s %(name)s %(message)s'
)
shape = ClippedShape(CrookedPlane())
shape.material = Material()
shape.material.color = Color(1, .2, 1)
shape.material.transparency = 1.0
shape.material.refractive_index = 1.5
objects = (shape, )
rad = 6
camera_height = .8 * rad
frames = []
for t in np.arange(0, math.pi, .1 * math.pi):
logging.info("New Frame %s", t)
camera_position = Point(rad * math.cos(t), rad * math.sin(t),
camera_height)
vt = view_transform(camera_position, Point(0, 0, 0), Vector(0, 0, 1))
canvas = make_single_frame(objects, vt, resolution)
frames.append(canvas._image)
path = Path(__file__).parent / "chap11.gif"
imageio.mimsave(str(path), frames, duration=0.25)
def make_middle():
middle = set_transform(Sphere(), 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
return middle
def main():
logging.basicConfig(
level=logging.INFO,
format=
'%(asctime)s %(levelname)s %(filename)s:%(lineno)s %(name)s %(message)s'
)
shape = ClippedShape(CrookedPlane())
shape.material = Material()
shape.material.color = Color(1, .2, 1)
#shape.material.pattern = gradient_pattern(BLUE, GREEN)
#shape.material.pattern.transform = Scaling(4, 2, 2)
objects = (shape, )
rad = 6
camera_height = .8 * rad
frames = []
for t in np.arange(0, math.pi, .1 * math.pi):
logging.info("New Frame %s", t)
camera_position = Point(rad * math.cos(t), rad * math.sin(t),
camera_height)
vt = view_transform(camera_position, Point(0, 0, 0), Vector(0, 0, 1))
canvas = make_single_frame(objects, vt)
frames.append(canvas._image)
imageio.mimsave("examples/crooked_plane.gif", frames, duration=0.25)
def make_right():
right = set_transform(Sphere(),
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
return right
def make_left():
left = set_transform(
Sphere(),
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)
left.material.diffuse = 0.7
left.material.specular = 0.3
return left
def make_middle():
middle = set_transform(Sphere(), 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
middle.material.pattern = gradient_pattern(BLUE, GREEN)
middle.material.pattern.transform = Scaling(.2, .2, .2)
return middle
def make_left():
left = set_transform(
Sphere(),
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)
left.material.diffuse = 0.7
left.material.specular = 0.3
left.material.pattern = checkers_pattern(WHITE, BLACK)
return left
def make_right():
right = set_transform(Sphere(),
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
right.material.pattern = ring_pattern(GREEN, BLACK)
right.material.pattern.transform = Scaling(.2, .2, .2) * rotation_x(
math.pi / 2)
return right
def step_impl(context, m):
_m = Material()
setattr(context, m, _m)
def floor_material():
material = Material()
material.color = Color(1, .9, .9)
material.specular = 0
return material
def __init__(self, material=None):
self.material = Material()
from ray_tracer.canvas import Canvas, write_pixel, canvas_to_png
from ray_tracer.colors import Color, WHITE
from ray_tracer.intersections import intersect, hit
from ray_tracer.lights import point_light
from ray_tracer.material import Material, lighting
from ray_tracer.rays import Ray, position
from ray_tracer.shapes import Sphere
from ray_tracer.tuples import Point, normalize
ray_origin = Point(0, 0, -5)
wall_z = 10
wall_size = 7
light = point_light(Point(-10, 10, -10), WHITE)
shape = Sphere()
shape.material = Material()
shape.material.color = Color(1, .2, 1)
def get_color(a_hit, ray):
point = position(ray, a_hit.t)
normal = a_hit.object.normal_at(point)
eye = -ray.direction
color = lighting(a_hit.object.material, a_hit.object, light, point, eye,
normal)
return color
def cast_this_point(canvas, canvas_x, canvas_y, world_x, world_y):
spot_on_wall = Point(world_x, world_y, wall_z)
ray = Ray(ray_origin, normalize(spot_on_wall - ray_origin))
