def make_single_frame(objects, view_transform_, camera_resolution):
lights = [
point_light(Point(10, 10, 15), WHITE),
point_light(Point(-10, -10, 15), WHITE)
]
world = World(objects=objects, light=lights)
camera = Camera(*camera_resolution, math.pi / 3)
camera.transform = view_transform_
canvas = camera.render(world)
return canvas
def default_world():
light = point_light(Point(-10, 10, -10), Color(1, 1, 1))
s1 = Sphere()
s1.material.color = Color(.8, 1.0, .6)
s1.material.diffuse = .7
s1.material.specular = .2
s2 = set_transform(Sphere(), Scaling(.5, .5, .5))
return World(objects=[s1, s2], light=light)
def draw_objects(objects):
logging.basicConfig(
level=logging.INFO,
format=
'%(asctime)s %(levelname)s %(filename)s:%(lineno)s %(name)s %(message)s'
)
lights = [
point_light(Point(10, 10, 15), WHITE),
point_light(Point(-10, -10, 15), WHITE)
]
world = World(objects=objects, light=lights)
camera = Camera(100, 50, math.pi / 3)
camera.transform = view_transform(Point(12, -6, 10), Point(0, 0, 0),
Vector(0, 0, 1))
canvas = camera.render(world)
path = Path(__file__).parent / "output.png"
canvas_to_png(str(path), canvas)
def main(camera_resolution):
logging.basicConfig(
level=logging.INFO,
format=
'%(asctime)s %(levelname)s %(filename)s:%(lineno)s %(name)s %(message)s'
)
objects = (make_floor(), make_middle(), make_right(), make_left())
light = point_light(Point(-10, 10, -10), Color(1, 1, 1))
world = World(objects=objects, light=light)
camera = Camera(*camera_resolution, math.pi / 3)
camera.transform = view_transform(Point(0, 1 / 5, -5), Point(0, 1, 0),
Vector(0, 1, 0))
canvas = camera.render(world)
path = Path(__file__).parent / "chap10.png"
canvas_to_png(str(path), canvas)
def main(canvas_dimensions):
logging.basicConfig(
level=logging.INFO,
format=
'%(asctime)s %(levelname)s %(filename)s:%(lineno)s %(process)d %(name)s %(message)s'
)
objects = (make_floor(), make_wall(-math.pi / 4), make_wall(math.pi / 4),
make_middle(), make_right(), make_left())
light = point_light(Point(-10, 10, -10), Color(1, 1, 1))
world = World(objects=objects, light=light)
camera = Camera(canvas_dimensions[0], canvas_dimensions[1], math.pi / 3)
camera.transform = view_transform(Point(0, 1 / 5, -5), Point(0, 1, 0),
Vector(0, 1, 0))
start = time.time()
canvas = camera.render(world)
stop = time.time()
logging.info("Rendering took %s seconds", stop - start)
path = Path(__file__).parent / "chap7.png"
canvas_to_png(str(path), canvas)
def step_impl(context, world, x, y, z, red, green, blue):
_world = getattr(context, world)
_world.light = point_light(Point(x, y, z), Color(red, green, blue))
def step_impl(context, light, position, intensity):
_position = getattr(context, position)
_intensity = getattr(context, intensity)
_light = point_light(_position, _intensity)
setattr(context, light, _light)
import argparse
from pathlib import Path
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):