def shapes_rendering_phong(
scene: np.ndarray,
shapes: ShapesContainer,
fov_degree: float,
lights: List[Light],
eye_position: Union[np.ndarray, None] = None) -> NoReturn:
"""
:param scene:
:param shapes:
:param fov_degree:
:param lights:
:param eye_position:
:return:
"""
h: int = scene.shape[0]
w: int = scene.shape[1]
if eye_position is None:
eye_position = np.array([0, 0, 0])
fov: float = np.deg2rad(fov_degree)
scale: float = np.tan(fov * 0.5)
imageAspectRatio: float = float(w) / float(h)
for i in range(0, h):
for j in range(0, w):
x: float = (2 * (i + 0.5) / float(w) - 1) * scale
y: float = (1 - 2 *
(j + 0.5) / float(h)) * scale * (1. / imageAspectRatio)
direction: np.ndarray = vector_normalize(
np.array([y, x, -1.], dtype=float))
scene[i, j] = cast_ray_phong(eye_position, direction, shapes,
lights)
def simple_shapes_rendering(
scene: np.ndarray,
shapes: ShapesContainer,
fov_degree: float,
eye_position: Union[np.ndarray, None] = None,
sphere_color: Union[np.ndarray, None] = None,
background_color: Union[np.ndarray, None] = None) -> NoReturn:
"""
:param scene:
:param shapes:
:param fov_degree:
:param eye_position:
:param sphere_color:
:param background_color:
:return:
"""
if sphere_color is None:
sphere_color = random_color()
if background_color is None:
background_color = random_color()
h: int = scene.shape[0]
w: int = scene.shape[1]
if eye_position is None:
eye_position = np.array([0, 0, 0])
fov: float = np.deg2rad(fov_degree)
scale: float = np.tan(fov * 0.5)
imageAspectRatio: float = float(w) / float(h)
for i in range(0, h):
for j in range(0, w):
x: float = (2 * (i + 0.5) / float(w) - 1) * scale
y: float = (1 - 2 *
(j + 0.5) / float(h)) * scale * (1. / imageAspectRatio)
direction: np.ndarray = vector_normalize(
np.array([y, x, -1.], dtype=float))
scene[i, j] = cast_ray(eye_position, direction, shapes,
sphere_color, background_color)