def ch7():
# Step 1
floor = Sphere()
floor.transform = Matrix.scaling(10, 0.01, 10)
floor.material = Material()
floor.material.color = Color(1, 0.9, 0.9)
floor.material.specular = 0
# Step 2
left_wall = Sphere()
left_wall.transform = Matrix.translation(0, 0, 5) * Matrix.rotation_y(-45) * \
Matrix.rotation_x(90) * Matrix.scaling(10, 0.01, 10)
left_wall.material = floor.material
# Step 3
right_wall = Sphere()
right_wall.transform = Matrix.translation(0, 0, 5) * Matrix.rotation_y(45) * \
Matrix.rotation_x(90) * Matrix.scaling(10, 0.01, 10)
right_wall.material = floor.material
# Step 4
middle = Sphere()
middle.transform = Matrix.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
# Step 5
right = Sphere()
right.transform = Matrix.translation(1.5, 0.5, -0.5) * Matrix.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
# Step 6
left = Sphere()
left.transform = Matrix.translation(-1.5, 0.33, -0.75) * Matrix.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
world = World()
world.light = PointLight(point(-10, 10, -10), Color(1, 1, 1))
world.objects.extend([floor, left_wall, right_wall, middle, right, left])
camera = Camera(100, 50, 60)
# camera = Camera(500, 250, 60)
camera.transform = view_transform(point(0, 1.5, -5), point(0, 1, 0),
vector(0, 1, 0))
canvas = camera.render(world)
with open('ch8.ppm', 'w') as fp:
fp.write(canvas.to_ppm())
def ch14():
world = World()
world.light = PointLight(point(-10, 10, -10), Color(1, 1, 1))
hex = hexagon()
world.objects.append(hex)
camera = Camera(100, 50, 60)
camera.transform = view_transform(point(0, 2, -1), point(0, 0, 0),
vector(0, 1, 0))
canvas = camera.render(world)
with open('ch14.ppm', 'w') as fp:
fp.write(canvas.to_ppm())
def ch9():
# Step 1
floor = Plane()
floor.transform = Matrix.scaling(10, 0.01, 10)
floor.material = Material()
floor.material.color = Color(1, 0.9, 0.9)
floor.material.specular = 0
floor.material.pattern = StripePattern(Color(1, 0, 0), Color(0, 0, 1))
# Middle biggest sphere
middle = Sphere()
middle.transform = Matrix.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 = RingPattern(Color(1, 0, 1), Color(1, 1, 1))
middle.material.pattern.transform = Matrix.scaling(0.25, 0.5, 0.25)
# Smaller right sphere
right = Sphere()
right.transform = Matrix.translation(1.5, 0.5, -0.5) * Matrix.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.reflective = 1.0
# Left yellow sphere
left = Sphere()
left.transform = Matrix.translation(-1.5, 0.33, -0.75) * Matrix.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
world = World()
world.light = PointLight(point(-10, 10, -10), Color(1, 1, 1))
world.objects.extend([floor, middle, right, left])
camera = Camera(100, 50, 60)
# camera = Camera(500, 250, 60)
camera.transform = view_transform(point(0, 1.5, -5),
point(0, 1, 0),
vector(0, 1, 0))
canvas = camera.render(world)
with open('ch9.ppm', 'w') as fp:
fp.write(canvas.to_ppm())
