group = rtx.ObjectGroup()
geometry = rtx.PlainGeometry(size, size)
geometry.set_rotation((0, math.pi / 2, 0))
geometry.set_position((-10, 0, 0))
material = rtx.EmissiveMaterial(3, visible=False)
mapping = rtx.SolidColorMapping((1, 1, 1))
light = rtx.Object(geometry, material, mapping)
group.add(light)
group.set_rotation((-math.pi / 3, math.pi / 2, 0))
scene.add(group)
screen_width = 64
screen_height = 64
rt_args = rtx.RayTracingArguments()
rt_args.num_rays_per_pixel = 2048
rt_args.max_bounce = 3
rt_args.next_event_estimation_enabled = False
rt_args.supersampling_enabled = True
cuda_args = rtx.CUDAKernelLaunchArguments()
cuda_args.num_threads = 64
cuda_args.num_rays_per_thread = 128
renderer = rtx.Renderer()
camera = rtx.PerspectiveCamera(eye=(0, 0, 6),
center=(0, 0, 0),
up=(0, 1, 0),
fov_rad=math.pi / 3,
def main():
# Set GPU device
rtx.set_device(args.gpu_device)
# Texture
wall_texture_filename_array = [
"textures/wall_texture_5.jpg",
]
floor_texture_filename_array = [
"textures/floor_texture_1.png",
]
# Load MNIST images
mnist_image_array = load_mnist_images()
screen_width = args.image_size
screen_height = args.image_size
# Setting up a raytracer
rt_args = rtx.RayTracingArguments()
rt_args.num_rays_per_pixel = 1024
rt_args.max_bounce = 3
rt_args.supersampling_enabled = True
rt_args.next_event_estimation_enabled = True
cuda_args = rtx.CUDAKernelLaunchArguments()
cuda_args.num_threads = 64
cuda_args.num_rays_per_thread = 16
renderer = rtx.Renderer()
render_buffer = np.zeros(
(screen_height, screen_width, 3), dtype=np.float32)
perspective_camera = rtx.PerspectiveCamera(
fov_rad=math.pi / 3, aspect_ratio=screen_width / screen_height)
orthogonal_camera = rtx.OrthographicCamera()
plt.tight_layout()
scene = build_scene(
random.sample(mnist_image_array, 6), wall_texture_filename_array,
floor_texture_filename_array)
view_radius = 3
rotation = 0
fig = plt.figure(figsize=(6, 3))
axis_perspective = fig.add_subplot(1, 2, 1)
axis_orthogonal = fig.add_subplot(1, 2, 2)
ims = []
for _ in range(args.num_views_per_scene):
eye = (view_radius * math.cos(rotation), -0.125,
view_radius * math.sin(rotation))
center = (0, 0, 0)
perspective_camera.look_at(eye, center, up=(0, 1, 0))
renderer.render(scene, perspective_camera, rt_args, cuda_args,
render_buffer)
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
im1 = axis_perspective.imshow(
image, interpolation="none", animated=True)
eye = (view_radius * math.cos(rotation),
view_radius * math.sin(math.pi / 6),
view_radius * math.sin(rotation))
center = (0, 0, 0)
orthogonal_camera.look_at(eye, center, up=(0, 1, 0))
renderer.render(scene, orthogonal_camera, rt_args, cuda_args,
render_buffer)
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
im2 = axis_orthogonal.imshow(
image, interpolation="none", animated=True)
ims.append([im1, im2])
plt.pause(1e-8)
rotation += math.pi / 36
ani = animation.ArtistAnimation(
fig, ims, interval=1 / 24, blit=True, repeat_delay=0)
ani.save('mnist_dice.gif', writer="imagemagick")
def main():
try:
os.makedirs(args.output_directory)
except:
pass
last_file_number = args.initial_file_number + args.total_scenes // args.num_scenes_per_file - 1
initial_file_number = args.initial_file_number
if os.path.isdir(args.output_directory):
files = os.listdir(args.output_directory)
for name in files:
number = int(name.replace(".h5", ""))
if number > last_file_number:
continue
if number < args.initial_file_number:
continue
if number < initial_file_number:
continue
initial_file_number = number + 1
total_scenes_to_render = args.total_scenes - args.num_scenes_per_file * (
initial_file_number - args.initial_file_number)
assert args.num_scenes_per_file <= total_scenes_to_render
# Set GPU device
rtx.set_device(args.gpu_device)
# Initialize colors
colors = []
for n in range(args.num_colors):
hue = n / args.num_colors
saturation = 1
lightness = 1
red, green, blue = colorsys.hsv_to_rgb(hue, saturation, lightness)
colors.append((red, green, blue, 1))
screen_width = args.image_size
screen_height = args.image_size
# Setting up a raytracer
rt_args = rtx.RayTracingArguments()
rt_args.num_rays_per_pixel = 1024
rt_args.max_bounce = 3
rt_args.supersampling_enabled = args.anti_aliasing
rt_args.next_event_estimation_enabled = True
rt_args.ambient_light_intensity = 0.1
cuda_args = rtx.CUDAKernelLaunchArguments()
cuda_args.num_threads = 64
cuda_args.num_rays_per_thread = 32
renderer = rtx.Renderer()
render_buffer = np.zeros((screen_height, screen_width, 3),
dtype=np.float32)
archiver = Archiver(
directory=args.output_directory,
num_scenes_per_file=args.num_scenes_per_file,
image_size=(args.image_size, args.image_size),
num_observations_per_scene=args.num_observations_per_scene,
initial_file_number=initial_file_number)
camera = rtx.PerspectiveCamera(fov_rad=math.pi / 3,
aspect_ratio=screen_width / screen_height)
camera_distance = 2
for _ in tqdm(range(total_scenes_to_render)):
scene = build_scene(floor_textures,
wall_textures,
fix_light_position=args.fix_light_position)
place_objects(scene,
colors,
max_num_objects=args.max_num_objects,
discrete_position=args.discrete_position,
rotate_object=args.rotate_object)
scene_data = SceneData((args.image_size, args.image_size),
args.num_observations_per_scene)
for _ in range(args.num_observations_per_scene):
# Sample camera position
rand_position_xz = np.random.normal(size=2)
rand_position_xz = camera_distance * rand_position_xz / np.linalg.norm(
rand_position_xz)
camera_position = np.array(
(rand_position_xz[0], wall_height / 2, rand_position_xz[1]))
center = np.array((0, wall_height / 2, 0))
# Compute yaw and pitch
camera_direction = camera_position - center
yaw, pitch = compute_yaw_and_pitch(camera_direction)
camera.look_at(tuple(camera_position), tuple(center), up=(0, 1, 0))
renderer.render(scene, camera, rt_args, cuda_args, render_buffer)
# Convert to sRGB
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
scene_data.add(image, camera_position, math.cos(yaw),
math.sin(yaw), math.cos(pitch), math.sin(pitch))
if args.visualize:
plt.clf()
plt.imshow(image)
plt.pause(1e-10)
archiver.add(scene_data)
def main():
# Set GPU device
rtx.set_device(args.gpu_device)
# Initialize colors
colors = []
for n in range(args.num_colors):
hue = n / args.num_colors
saturation = 1
lightness = 1
red, green, blue = colorsys.hsv_to_rgb(hue, saturation, lightness)
colors.append((red, green, blue, 1))
screen_width = args.image_size
screen_height = args.image_size
# Setting up a raytracer
rt_args = rtx.RayTracingArguments()
rt_args.num_rays_per_pixel = 1024
rt_args.max_bounce = 3
rt_args.supersampling_enabled = args.anti_aliasing
rt_args.next_event_estimation_enabled = True
rt_args.ambient_light_intensity = 0.1
cuda_args = rtx.CUDAKernelLaunchArguments()
cuda_args.num_threads = 64
cuda_args.num_rays_per_thread = 32
renderer = rtx.Renderer()
render_buffer = np.zeros((screen_height, screen_width, 3),
dtype=np.float32)
perspective_camera = rtx.PerspectiveCamera(fov_rad=math.pi / 3,
aspect_ratio=screen_width /
screen_height)
orthographic_camera = rtx.OrthographicCamera()
camera_distance = 2
plt.tight_layout()
scene = build_scene(floor_textures,
wall_textures,
fix_light_position=args.fix_light_position)
place_objects(scene,
colors,
min_num_objects=args.num_objects,
max_num_objects=args.num_objects,
discrete_position=args.discrete_position,
rotate_object=args.rotate_object)
current_rad = 0
rad_step = math.pi / 36
total_frames = int(math.pi * 2 / rad_step)
fig = plt.figure(figsize=(6, 3))
axis_perspective = fig.add_subplot(1, 2, 1)
axis_orthogonal = fig.add_subplot(1, 2, 2)
ims = []
for _ in range(total_frames):
# Perspective camera
camera_position = (camera_distance * math.cos(current_rad),
wall_height / 2,
camera_distance * math.sin(current_rad))
center = (0, wall_height / 2, 0)
perspective_camera.look_at(camera_position, center, up=(0, 1, 0))
renderer.render(scene, perspective_camera, rt_args, cuda_args,
render_buffer)
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
im1 = axis_perspective.imshow(image,
interpolation="none",
animated=True)
# Orthographic camera
offset_y = 1
camera_position = (2 * math.cos(current_rad),
2 * math.sin(math.pi / 6) + offset_y,
2 * math.sin(current_rad))
center = (0, offset_y, 0)
orthographic_camera.look_at(camera_position, center, up=(0, 1, 0))
renderer.render(scene, orthographic_camera, rt_args, cuda_args,
render_buffer)
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
im2 = axis_orthogonal.imshow(image,
interpolation="none",
animated=True)
ims.append([im1, im2])
# plt.pause(1e-8)
current_rad += rad_step
ani = animation.ArtistAnimation(fig,
ims,
interval=1 / 24,
blit=True,
repeat_delay=0)
filename = "rooms"
if args.discrete_position:
filename += "_discrete_position"
if args.rotate_object:
filename += "_rotate_object"
if args.fix_light_position:
filename += "_fix_light_position"
filename += ".gif"
ani.save(filename, writer="imagemagick")
def main():
# Set GPU device
rtx.set_device(args.gpu_device)
# Texture
wall_texture_filename_array = [
"textures/wall_texture_1.png",
"textures/wall_texture_2.jpg",
"textures/wall_texture_3.jpg",
"textures/wall_texture_4.jpg",
"textures/wall_texture_5.jpg",
"textures/wall_texture_6.jpg",
"textures/wall_texture_7.jpg",
]
floor_texture_filename_array = [
"textures/floor_texture_1.png",
]
# Initialize colors
color_array = []
for n in range(args.num_colors):
hue = n / (args.num_colors - 1)
saturation = 1
lightness = 1
red, green, blue = colorsys.hsv_to_rgb(hue, saturation, lightness)
color_array.append((red, green, blue, 1))
screen_width = args.image_size
screen_height = args.image_size
grid_size = 8
wall_height = 3
# Setting up a raytracer
rt_args = rtx.RayTracingArguments()
rt_args.num_rays_per_pixel = 1024
rt_args.max_bounce = 3
rt_args.supersampling_enabled = True
rt_args.next_event_estimation_enabled = True
cuda_args = rtx.CUDAKernelLaunchArguments()
cuda_args.num_threads = 64
cuda_args.num_rays_per_thread = 16
renderer = rtx.Renderer()
render_buffer = np.zeros((screen_height, screen_width, 3),
dtype=np.float32)
dataset = gqn.archiver.Archiver(
directory=args.output_directory,
total_observations=args.total_observations,
num_observations_per_file=min(args.num_observations_per_file,
args.total_observations),
image_size=(args.image_size, args.image_size),
num_views_per_scene=args.num_views_per_scene,
initial_file_number=args.initial_file_number)
camera = rtx.PerspectiveCamera(fov_rad=math.pi / 3,
aspect_ratio=screen_width / screen_height)
for _ in tqdm(range(args.total_observations)):
scene = build_scene(color_array, wall_texture_filename_array,
floor_texture_filename_array, grid_size,
wall_height)
scene_data = gqn.archiver.SceneData((args.image_size, args.image_size),
args.num_views_per_scene)
for _ in range(args.num_views_per_scene):
rotation = random.uniform(0, math.pi * 2)
radius = grid_size - 5
eye = (radius * math.cos(rotation), -0.125,
radius * math.sin(rotation))
center = (0, -0.125, 0)
camera.look_at(eye, center, up=(0, 1, 0))
renderer.render(scene, camera, rt_args, cuda_args, render_buffer)
# Convert to sRGB
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
yaw = gqn.math.yaw(eye, center)
pitch = gqn.math.pitch(eye, center)
scene_data.add(image, eye, math.cos(yaw), math.sin(yaw),
math.cos(pitch), math.sin(pitch))
# plt.imshow(image, interpolation="none")
# plt.pause(1e-8)
dataset.add(scene_data)
def main():
# Set GPU device
rtx.set_device(args.gpu_device)
# Initialize colors
color_array = []
for n in range(args.num_colors):
hue = n / (args.num_colors - 1)
saturation = 0.9
lightness = 1
red, green, blue = colorsys.hsv_to_rgb(hue, saturation, lightness)
color_array.append((red, green, blue, 1))
screen_width = args.image_size
screen_height = args.image_size
# Setting up a raytracer
rt_args = rtx.RayTracingArguments()
rt_args.num_rays_per_pixel = 512
rt_args.max_bounce = 2
rt_args.supersampling_enabled = False
cuda_args = rtx.CUDAKernelLaunchArguments()
cuda_args.num_threads = 64
cuda_args.num_rays_per_thread = 32
renderer = rtx.Renderer()
render_buffer = np.zeros((screen_height, screen_width, 3),
dtype=np.float32)
camera = rtx.OrthographicCamera()
fig = plt.figure(figsize=(3, 3))
ims = []
scene = build_scene(color_array)
view_radius = 3
rotation = 0
for _ in range(args.num_views_per_scene):
eye = (view_radius * math.cos(rotation),
view_radius * math.sin(math.pi / 6),
view_radius * math.sin(rotation))
center = (0, 0, 0)
camera.look_at(eye, center, up=(0, 1, 0))
renderer.render(scene, camera, rt_args, cuda_args, render_buffer)
# Convert to sRGB
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
im = plt.imshow(image, interpolation="none", animated=True)
ims.append([im])
plt.pause(1e-8)
rotation += math.pi / 36
ani = animation.ArtistAnimation(fig,
ims,
interval=1 / 24,
blit=True,
repeat_delay=0)
ani.save('shepard_matzler.gif', writer="imagemagick")
def main():
# Set GPU device
rtx.set_device(args.gpu_device)
# Initialize colors
color_array = []
for n in range(args.num_colors):
hue = n / (args.num_colors - 1)
saturation = 0.9
lightness = 1
red, green, blue = colorsys.hsv_to_rgb(hue, saturation, lightness)
color_array.append((red, green, blue, 1))
screen_width = args.image_size
screen_height = args.image_size
# Setting up a raytracer
rt_args = rtx.RayTracingArguments()
rt_args.num_rays_per_pixel = 512
rt_args.max_bounce = 2
rt_args.supersampling_enabled = False
cuda_args = rtx.CUDAKernelLaunchArguments()
cuda_args.num_threads = 64
cuda_args.num_rays_per_thread = 32
renderer = rtx.Renderer()
render_buffer = np.zeros((screen_height, screen_width, 3),
dtype=np.float32)
dataset = gqn.archiver.Archiver(
directory=args.output_directory,
total_observations=args.total_observations,
num_observations_per_file=min(args.num_observations_per_file,
args.total_observations),
image_size=(args.image_size, args.image_size),
num_views_per_scene=args.num_views_per_scene,
frames_per_rotation=args.frames_per_rotation,
initial_file_number=args.initial_file_number)
camera = rtx.OrthographicCamera()
for _ in tqdm(range(args.total_observations)):
scene = build_scene(color_array)
scene_data = gqn.archiver.SceneData((args.image_size, args.image_size),
args.num_views_per_scene,
args.frames_per_rotation)
view_radius = 3
angle_rad = 0
for _ in range(args.frames_per_rotation):
eye = rotate_viewpoint(angle_rad)
eye = tuple(view_radius * (eye / np.linalg.norm(eye)))
center = (0, 0, 0)
camera.look_at(eye, center, up=(0, 1, 0))
renderer.render(scene, camera, rt_args, cuda_args, render_buffer)
# Convert to sRGB
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
scene_data.add_orig(image)
angle_rad += 2 * math.pi / args.frames_per_rotation
for _ in range(args.num_views_per_scene):
eye = np.random.normal(size=3)
eye = tuple(view_radius * (eye / np.linalg.norm(eye)))
center = (0, 0, 0)
camera.look_at(eye, center, up=(0, 1, 0))
renderer.render(scene, camera, rt_args, cuda_args, render_buffer)
# Convert to sRGB
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
# plt.imshow(image, interpolation="none")
# plt.pause(1e-8)
yaw = gqn.math.yaw(eye, center)
pitch = gqn.math.pitch(eye, center)
scene_data.add(image, eye, math.cos(yaw), math.sin(yaw),
math.cos(pitch), math.sin(pitch))
dataset.add(scene_data)
def main():
# Set GPU device
rtx.set_device(args.gpu_device)
# Initialize colors
color_array = []
for n in range(args.num_colors):
hue = n / (args.num_colors - 1)
saturation = 0.9
lightness = 1
red, green, blue = colorsys.hsv_to_rgb(hue, saturation, lightness)
color_array.append((red, green, blue, 1))
screen_width = args.image_size
screen_height = args.image_size
# Setting up a raytracer
rt_args = rtx.RayTracingArguments()
rt_args.num_rays_per_pixel = 512
rt_args.max_bounce = 2
rt_args.supersampling_enabled = args.anti_aliasing
rt_args.ambient_light_intensity = 0.05
cuda_args = rtx.CUDAKernelLaunchArguments()
cuda_args.num_threads = 64
cuda_args.num_rays_per_thread = 32
renderer = rtx.Renderer()
render_buffer = np.zeros((screen_height, screen_width, 3),
dtype=np.float32)
camera = rtx.OrthographicCamera()
fig = plt.figure(figsize=(3, 3))
ims = []
camera_distance = 1
current_rad = 0
rad_step = math.pi / 18
total_frames = int(math.pi * 2 / rad_step)
for num_cubes in range(1, 8):
scene = build_scene(num_cubes, color_array)
for _ in range(total_frames):
camera_position = (camera_distance * math.sin(current_rad),
camera_distance * math.sin(math.pi / 6),
camera_distance * math.cos(current_rad))
center = (0, 0, 0)
camera.look_at(camera_position, center, up=(0, 1, 0))
renderer.render(scene, camera, rt_args, cuda_args, render_buffer)
# Convert to sRGB
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
im = plt.imshow(image, interpolation="none", animated=True)
ims.append([im])
# plt.pause(1e-8)
current_rad += rad_step
ani = animation.ArtistAnimation(fig,
ims,
interval=1 / 24,
blit=True,
repeat_delay=0)
ani.save('shepard_matzler.gif', writer="imagemagick")
def main():
# Set GPU device
rtx.set_device(args.gpu_device)
# Initialize colors
color_array = []
for n in range(args.num_colors):
hue = n / (args.num_colors - 1)
saturation = 0.9
lightness = 1
red, green, blue = colorsys.hsv_to_rgb(hue, saturation, lightness)
color_array.append((red, green, blue, 1))
screen_width = args.image_size
screen_height = args.image_size
# Setting up a raytracer
rt_args = rtx.RayTracingArguments()
rt_args.num_rays_per_pixel = 512
rt_args.max_bounce = 2
rt_args.supersampling_enabled = args.anti_aliasing
rt_args.ambient_light_intensity = 0.05
cuda_args = rtx.CUDAKernelLaunchArguments()
cuda_args.num_threads = 64
cuda_args.num_rays_per_thread = 32
renderer = rtx.Renderer()
render_buffer = np.zeros((screen_height, screen_width, 3),
dtype=np.float32)
archiver = Archiver(
directory=args.output_directory,
total_scenes=args.total_scenes,
num_scenes_per_file=min(args.num_scenes_per_file, args.total_scenes),
image_size=(args.image_size, args.image_size),
num_observations_per_scene=args.num_observations_per_scene,
initial_file_number=args.initial_file_number)
camera = rtx.OrthographicCamera()
for _ in tqdm(range(args.total_scenes)):
scene = build_scene(args.num_cubes, color_array)
scene_data = SceneData((args.image_size, args.image_size),
args.num_observations_per_scene)
camera_distance = 1
for _ in range(args.num_observations_per_scene):
# Generate random point on a sphere
camera_position = np.random.normal(size=3)
camera_position = camera_distance * camera_position / np.linalg.norm(
camera_position)
# Compute yaw and pitch
yaw, pitch = compute_yaw_and_pitch(camera_position)
center = (0, 0, 0)
camera.look_at(tuple(camera_position), center, up=(0, 1, 0))
renderer.render(scene, camera, rt_args, cuda_args, render_buffer)
# Convert to sRGB
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
if args.visualize:
plt.clf()
plt.imshow(image)
plt.pause(1e-10)
scene_data.add(image, camera_position, math.cos(yaw),
math.sin(yaw), math.cos(pitch), math.sin(pitch))
archiver.add(scene_data)
def main():
try:
os.mkdir(os.path.join(args.dataset_path, "test_data"))
except:
pass
# Set GPU device
rtx.set_device(args.gpu_device)
# Initialize colors
color_array = []
for n in range(args.num_colors):
hue = n / (args.num_colors - 1)
saturation = 0.9
lightness = 1
red, green, blue = colorsys.hsv_to_rgb(hue, saturation, lightness)
color_array.append((red, green, blue, 1))
screen_width = args.image_size
screen_height = args.image_size
# Setting up a raytracer
rt_args = rtx.RayTracingArguments()
rt_args.num_rays_per_pixel = 512
rt_args.max_bounce = 2
rt_args.supersampling_enabled = False
cuda_args = rtx.CUDAKernelLaunchArguments()
cuda_args.num_threads = 64
cuda_args.num_rays_per_thread = 32
renderer = rtx.Renderer()
render_buffer = np.zeros((screen_height, screen_width, 3),
dtype=np.float32)
camera = rtx.OrthographicCamera()
# enumerateがちゃんと動くか心配...
original_data = c_gqn.data.Dataset(args.dataset_path)
for i, subset in enumerate(original_data):
iterator = c_gqn.data.Iterator(subset, batch_size=1)
for j, data_indices in enumerate(iterator):
_images, viewpoints, _original_images = subset[data_indices]
images = []
scene = build_scene(color_array)
for viewpoint in viewpoints[0]:
eye = tuple(viewpoint[0:3])
center = (0, 0, 0)
camera.look_at(eye, center, up=(0, 1, 0))
renderer.render(scene, camera, rt_args, cuda_args,
render_buffer)
# Convert to sRGB
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
images.append(image)
view_radius = 3
angle_rad = 0
original_images = []
for _ in range(args.frames_per_rotation):
eye = rotate_viewpoint(angle_rad)
eye = tuple(view_radius * (eye / np.linalg.norm(eye)))
center = (0, 0, 0)
camera.look_at(eye, center, up=(0, 1, 0))
renderer.render(scene, camera, rt_args, cuda_args,
render_buffer)
# Convert to sRGB
original_image = np.power(np.clip(render_buffer, 0, 1),
1.0 / 2.2)
original_image = np.uint8(original_image * 255)
original_image = cv2.bilateralFilter(original_image, 3, 25, 25)
original_images.append(original_image)
angle_rad += 2 * math.pi / args.frames_per_rotation
np.save(
os.path.join(args.dataset_path, "test_data",
str(i) + "_" + str(j) + ".npy"),
[images, original_images])
print('saved: ' + str(i) + "_" + str(j) + ".npy")
def main():
try:
os.makedirs(args.output_directory)
except:
pass
# Load MNIST images
mnist_images = load_mnist_images()
# Set GPU device
rtx.set_device(args.gpu_device)
screen_width = args.image_size
screen_height = args.image_size
# Setting up a raytracer
rt_args = rtx.RayTracingArguments()
rt_args.num_rays_per_pixel = 1024
rt_args.max_bounce = 3
rt_args.supersampling_enabled = args.anti_aliasing
rt_args.next_event_estimation_enabled = True
rt_args.ambient_light_intensity = 0.1
cuda_args = rtx.CUDAKernelLaunchArguments()
cuda_args.num_threads = 64
cuda_args.num_rays_per_thread = 32
renderer = rtx.Renderer()
render_buffer = np.zeros((screen_height, screen_width, 3),
dtype=np.float32)
archiver = Archiver(
directory=args.output_directory,
total_scenes=args.total_scenes,
num_scenes_per_file=min(args.num_scenes_per_file, args.total_scenes),
image_size=(args.image_size, args.image_size),
num_observations_per_scene=args.num_observations_per_scene,
initial_file_number=args.initial_file_number)
camera = rtx.PerspectiveCamera(fov_rad=math.pi / 3,
aspect_ratio=screen_width / screen_height)
camera_distance = 2
for _ in tqdm(range(args.total_scenes)):
scene = build_scene(floor_textures,
wall_textures,
fix_light_position=args.fix_light_position)
place_dice(scene,
mnist_images,
discrete_position=args.discrete_position,
rotate_dice=args.rotate_dice)
scene_data = SceneData((args.image_size, args.image_size),
args.num_observations_per_scene)
for _ in range(args.num_observations_per_scene):
# Sample camera position
rand_position_xz = np.random.normal(size=2)
rand_position_xz = camera_distance * rand_position_xz / np.linalg.norm(
rand_position_xz)
camera_position = np.array(
(rand_position_xz[0], wall_height / 2, rand_position_xz[1]))
center = np.array((0, wall_height / 2, 0))
# Compute yaw and pitch
camera_direction = camera_position - center
yaw, pitch = compute_yaw_and_pitch(camera_direction)
camera.look_at(tuple(camera_position), tuple(center), up=(0, 1, 0))
renderer.render(scene, camera, rt_args, cuda_args, render_buffer)
# Convert to sRGB
image = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
image = np.uint8(image * 255)
image = cv2.bilateralFilter(image, 3, 25, 25)
scene_data.add(image, camera_position, math.cos(yaw),
math.sin(yaw), math.cos(pitch), math.sin(pitch))
if args.visualize:
plt.clf()
plt.imshow(image)
plt.pause(1e-10)
archiver.add(scene_data)
def main():
try:
os.mkdir(args.figure_directory)
except:
pass
#### Model ####
xp = np
using_gpu = args.gpu_device >= 0
if using_gpu:
cuda.get_device(args.gpu_device).use()
xp = cp
hyperparams = HyperParameters(snapshot_directory=args.snapshot_path)
model = Model(hyperparams, snapshot_directory=args.snapshot_path)
if using_gpu:
model.to_gpu()
print(hyperparams)
#### Renderer ####
# Set GPU device
rtx.set_device(args.gpu_device)
# Initialize colors
color_array = []
for n in range(args.num_colors):
hue = n / (args.num_colors - 1)
saturation = 0.9
lightness = 1
red, green, blue = colorsys.hsv_to_rgb(hue, saturation, lightness)
color_array.append((red, green, blue, 1))
screen_width = args.image_size
screen_height = args.image_size
# Setting up a raytracer
rt_args = rtx.RayTracingArguments()
rt_args.num_rays_per_pixel = 2048
rt_args.max_bounce = 4
rt_args.supersampling_enabled = False
cuda_args = rtx.CUDAKernelLaunchArguments()
cuda_args.num_threads = 64
cuda_args.num_rays_per_thread = 32
renderer = rtx.Renderer()
render_buffer = np.zeros((screen_height, screen_width, 3),
dtype=np.float32)
camera = rtx.OrthographicCamera()
#### Figure ####
plt.style.use("dark_background")
fig = plt.figure(figsize=(8, 4))
fig.suptitle("GQN")
axis_observation = fig.add_subplot(1, 2, 1)
axis_observation.axis("off")
axis_observation.set_title("Observation")
axis_generation = fig.add_subplot(1, 2, 2)
axis_generation.axis("off")
axis_generation.set_title("Generation")
for scene_index in range(1, 100):
scene = build_scene(color_array)
eye_scale = 3
total_frames_per_rotation = 48
artist_frame_array = []
observation_viewpoint_angle_rad = 0
for k in range(5):
eye = tuple(p * eye_scale for p in [
math.cos(observation_viewpoint_angle_rad),
math.sin(observation_viewpoint_angle_rad), 0
])
center = (0, 0, 0)
camera.look_at(eye, center, up=(0, 1, 0))
renderer.render(scene, camera, rt_args, cuda_args, render_buffer)
# Convert to sRGB
frame = np.power(np.clip(render_buffer, 0, 1), 1.0 / 2.2)
frame = np.uint8(frame * 255)
frame = cv2.bilateralFilter(frame, 3, 25, 25)
observation_viewpoint_angle_rad += math.pi / 20
yaw = gqn.math.yaw(eye, center)
pitch = gqn.math.pitch(eye, center)
ovserved_viewpoint = np.array(
eye + (math.cos(yaw), math.sin(yaw), math.cos(pitch),
math.sin(pitch)),
dtype=np.float32)
ovserved_viewpoint = ovserved_viewpoint[None, None, ...]
observed_image = frame.astype(np.float32)
observed_image = preprocess_images(observed_image, add_noise=False)
observed_image = observed_image[None, None, ...]
observed_image = observed_image.transpose((0, 1, 4, 2, 3))
if using_gpu:
ovserved_viewpoint = to_gpu(ovserved_viewpoint)
observed_image = to_gpu(observed_image)
representation = model.compute_observation_representation(
observed_image, ovserved_viewpoint)
query_viewpoint_angle_rad = 0
for t in range(total_frames_per_rotation):
artist_array = []
query_viewpoint = rotate_query_viewpoint(
query_viewpoint_angle_rad, 1, xp)
# query_viewpoint = rotate_query_viewpoint(math.pi / 6, 1, xp)
generated_image = model.generate_image(query_viewpoint,
representation)
generated_image = make_uint8(generated_image[0])
artist_array.append(
axis_observation.imshow(frame,
interpolation="none",
animated=True))
artist_array.append(
axis_generation.imshow(generated_image, animated=True))
query_viewpoint_angle_rad += 2 * math.pi / total_frames_per_rotation
artist_frame_array.append(artist_array)
anim = animation.ArtistAnimation(fig,
artist_frame_array,
interval=1 / 24,
blit=True,
repeat_delay=0)
anim.save("{}/shepard_matzler_uncertainty_{}.mp4".format(
args.figure_directory, scene_index),
writer="ffmpeg",
fps=12)
