def __init__(self, scene, screen_width=100, screen_height=100):
self.scene = scene
self.ray_generator = RayGenerator(
self.scene.direction,
screen_width,
screen_height
)
self.ray_tracer = RayTracer(scene)
self.screen = Screen(screen_width, screen_height)
def run():
window_surface = pygame.display.set_mode((400, 400))
sphere = Sphere(Point(0, 0, 0), radius=1.)
view_point = ViewPoint(Point(0, 0, -5.1))
pixels = pygame.PixelArray(window_surface)
image = Image(Rectangle(Point(-1, -1, -4.1), Vector(0.005, 0., 0.), Vector(0, 0.005, 0.)), pixels)
ray_generator = RayGenerator(view_point, image)
rays = ray_generator.generate()
theta, phi = 0. , 0.
light_source = LightSource(Vector(math.sin(theta)*math.cos(phi), math.sin(theta)*math.sin(phi), math.cos(theta)), 0.5)
ray_intersector = RaySphereIntersector(sphere, view_point.point().as_vector())
ray_shader = RayShader()
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_DOWN:
theta += 0.1
if event.key == pygame.K_UP:
theta -= 0.1
if event.key == pygame.K_LEFT:
phi -= 0.1
if event.key == pygame.K_RIGHT:
phi += 0.1
window_surface.fill((0, 0, 0,))
draw(rays, ray_intersector, ray_shader, light_source, sphere, image)
light_source = LightSource(
Vector(math.sin(theta) * math.cos(phi), math.sin(theta) * math.sin(phi), math.cos(theta)), 0.5)
pygame.display.flip()
print("theta " + str(theta))
print("phi " + str(phi))
print(" ")
class RayTracerMain(object):
def __init__(self, scene, screen_width=100, screen_height=100):
self.scene = scene
self.ray_generator = RayGenerator(
self.scene.direction,
screen_width,
screen_height
)
self.ray_tracer = RayTracer(scene)
self.screen = Screen(screen_width, screen_height)
def trace_scene(self):
for (x, y), ray in self.ray_generator.yield_primary_rays():
# TODO: create a ray class to encapsulate ray + position so this
# class doesn't have to know about the scene
pixel_color = self.ray_tracer.find_pixel_color_for_ray(
ray,
self.scene.position
)
self.screen.write_pixel(x, y, pixel_color)
def export_png(self, filename):
self.screen.dump_to_png(filename)