def build_scene(color_array):
# Generate positions of each cube
cube_position_array, shift = generate_block_positions(args.num_cubes)
assert len(cube_position_array) == args.num_cubes
# Place block
scene = rtx.Scene(ambient_color=(0, 0, 0))
for position in cube_position_array:
geometry = rtx.BoxGeometry(1, 1, 1)
geometry.set_position((
position[0] - shift[0],
position[1] - shift[1],
position[2] - shift[2],
))
material = rtx.LambertMaterial(0.3)
mapping = rtx.SolidColorMapping(random.choice(color_array))
cube = rtx.Object(geometry, material, mapping)
scene.add(cube)
# Place lights
size = 50
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(10, visible=False)
mapping = rtx.SolidColorMapping((1, 1, 1))
light = rtx.Object(geometry, material, mapping)
group.add(light)
geometry = rtx.PlainGeometry(size, size)
geometry.set_rotation((0, -math.pi / 2, 0))
geometry.set_position((10, 0, 0))
material = rtx.EmissiveMaterial(1, 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 / 4, 0))
scene.add(group)
return scene
material = rtx.LambertMaterial(0.4) mapping = rtx.SolidColorMapping((0, 1, 0)) cylinder = rtx.Object(geometry, material, mapping) scene.add(cylinder) # place cone geometry = rtx.ConeGeometry(0.5, 1) geometry.set_position((2, -1, 0)) material = rtx.LambertMaterial(0.4) mapping = rtx.SolidColorMapping((1, 0, 0)) cone = rtx.Object(geometry, material, mapping) scene.add(cone) # Place lights size = 50 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()
def build_dice(mnist_images):
assert len(mnist_images) == 6
dice = rtx.ObjectGroup()
# 1
geometry = rtx.PlainGeometry(1, 1)
geometry.set_position((0, 0, 0.5))
material = rtx.LambertMaterial(0.95)
mapping = build_mapping(mnist_images[0])
face = rtx.Object(geometry, material, mapping)
dice.add(face)
# 2
geometry = rtx.PlainGeometry(1, 1)
geometry.set_rotation((0, -math.pi, 0))
geometry.set_position((0, 0, -0.5))
material = rtx.LambertMaterial(0.95)
mapping = build_mapping(mnist_images[1])
face = rtx.Object(geometry, material, mapping)
dice.add(face)
# 3
geometry = rtx.PlainGeometry(1, 1)
geometry.set_rotation((0, math.pi / 2, 0))
geometry.set_position((0.5, 0, 0))
material = rtx.LambertMaterial(0.95)
mapping = build_mapping(mnist_images[2])
face = rtx.Object(geometry, material, mapping)
dice.add(face)
# 4
geometry = rtx.PlainGeometry(1, 1)
geometry.set_rotation((0, -math.pi / 2, 0))
geometry.set_position((-0.5, 0, 0))
material = rtx.LambertMaterial(0.95)
mapping = build_mapping(mnist_images[3])
face = rtx.Object(geometry, material, mapping)
dice.add(face)
# 5
geometry = rtx.PlainGeometry(1, 1)
geometry.set_rotation((math.pi / 2, 0, 0))
geometry.set_position((0, -0.5, 0))
material = rtx.LambertMaterial(0.95)
mapping = build_mapping(mnist_images[4])
face = rtx.Object(geometry, material, mapping)
dice.add(face)
# 5
geometry = rtx.PlainGeometry(1, 1)
geometry.set_rotation((-math.pi / 2, 0, 0))
geometry.set_position((0, 0.5, 0))
material = rtx.LambertMaterial(0.95)
mapping = build_mapping(mnist_images[5])
face = rtx.Object(geometry, material, mapping)
dice.add(face)
dice.set_scale((2, 2, 2))
return dice
def build_scene(mnist_image_array,
wall_texture_filename_array,
floor_texture_filename_array,
grid_size=8):
assert len(mnist_image_array) == 6
wall_height = 3
eps = 0.1
scene = rtx.Scene(ambient_color=(0.5, 1, 1))
texture = load_texture_image(random.choice(wall_texture_filename_array))
mapping = build_mapping(texture, grid_size / wall_height)
# 1
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, 0, 0))
geometry.set_position((0, 0, -grid_size / 2))
material = rtx.LambertMaterial(0.95)
wall = rtx.Object(geometry, material, mapping)
scene.add(wall)
# 2
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, -math.pi / 2, 0))
geometry.set_position((grid_size / 2, 0, 0))
material = rtx.LambertMaterial(0.95)
wall = rtx.Object(geometry, material, mapping)
scene.add(wall)
# 3
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, math.pi, 0))
geometry.set_position((0, 0, grid_size / 2))
material = rtx.LambertMaterial(0.95)
wall = rtx.Object(geometry, material, mapping)
scene.add(wall)
# 4
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, math.pi / 2, 0))
geometry.set_position((-grid_size / 2, 0, 0))
material = rtx.LambertMaterial(0.95)
wall = rtx.Object(geometry, material, mapping)
scene.add(wall)
# floor
geometry = rtx.PlainGeometry(grid_size + eps, grid_size + eps)
geometry.set_rotation((-math.pi / 2, 0, 0))
geometry.set_position((0, -wall_height / 2, 0))
material = rtx.LambertMaterial(0.95)
texture = load_texture_image(random.choice(floor_texture_filename_array))
mapping = build_mapping(texture, scale=0.5)
floor = rtx.Object(geometry, material, mapping)
scene.add(floor)
# Place lights
## Primary light
primary_light = rtx.ObjectGroup()
geometry = rtx.SphereGeometry(2)
material = rtx.EmissiveMaterial(40, visible=False)
mapping = rtx.SolidColorMapping((1, 1, 1))
light = rtx.Object(geometry, material, mapping)
primary_light.add(light)
spread = grid_size / 2 - 1
primary_light.set_position((spread * random.uniform(-1, 1), 8,
spread * random.uniform(-1, 1)))
scene.add(primary_light)
## Ambient light
ambient_lights = rtx.ObjectGroup()
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, 0, 0))
geometry.set_position((0, 0, -grid_size / 2))
material = rtx.EmissiveMaterial(1, visible=False)
wall = rtx.Object(geometry, material, mapping)
ambient_lights.add(wall)
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, -math.pi / 2, 0))
geometry.set_position((grid_size / 2, 0, 0))
material = rtx.EmissiveMaterial(1, visible=False)
wall = rtx.Object(geometry, material, mapping)
ambient_lights.add(wall)
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, math.pi, 0))
geometry.set_position((0, 0, grid_size / 2))
material = rtx.EmissiveMaterial(1, visible=False)
wall = rtx.Object(geometry, material, mapping)
ambient_lights.add(wall)
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, math.pi / 2, 0))
geometry.set_position((-grid_size / 2, 0, 0))
material = rtx.EmissiveMaterial(1, visible=False)
wall = rtx.Object(geometry, material, mapping)
ambient_lights.add(wall)
ambient_lights.set_position((0, wall_height, 0))
scene.add(ambient_lights)
# Place a dice
dice = build_dice(mnist_image_array)
spread = grid_size / 3
dice.set_position((spread * random.uniform(-1, 1), 1 - wall_height / 2,
spread * random.uniform(-1, 1)))
dice.set_rotation((0, random.uniform(0, math.pi * 2), 0))
scene.add(dice)
return scene
def build_scene(color_array, wall_texture_filename_array,
floor_texture_filename_array, grid_size, wall_height):
eps = 0.1
scene = rtx.Scene(ambient_color=(0.5, 1, 1))
texture = load_texture_image(random.choice(wall_texture_filename_array))
mapping = build_mapping(texture, grid_size / wall_height)
# 1
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, 0, 0))
geometry.set_position((0, 0, -grid_size / 2))
material = rtx.LambertMaterial(0.95)
wall = rtx.Object(geometry, material, mapping)
scene.add(wall)
# 2
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, -math.pi / 2, 0))
geometry.set_position((grid_size / 2, 0, 0))
material = rtx.LambertMaterial(0.95)
wall = rtx.Object(geometry, material, mapping)
scene.add(wall)
# 3
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, math.pi, 0))
geometry.set_position((0, 0, grid_size / 2))
material = rtx.LambertMaterial(0.95)
wall = rtx.Object(geometry, material, mapping)
scene.add(wall)
# 4
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, math.pi / 2, 0))
geometry.set_position((-grid_size / 2, 0, 0))
material = rtx.LambertMaterial(0.95)
wall = rtx.Object(geometry, material, mapping)
scene.add(wall)
# floor
geometry = rtx.PlainGeometry(grid_size + eps, grid_size + eps)
geometry.set_rotation((-math.pi / 2, 0, 0))
geometry.set_position((0, -wall_height / 2, 0))
material = rtx.LambertMaterial(0.95)
texture = load_texture_image(random.choice(floor_texture_filename_array))
mapping = build_mapping(texture, scale=0.5)
floor = rtx.Object(geometry, material, mapping)
scene.add(floor)
# Place lights
## Primary light
primary_light = rtx.ObjectGroup()
geometry = rtx.SphereGeometry(2)
material = rtx.EmissiveMaterial(40, visible=False)
mapping = rtx.SolidColorMapping((1, 1, 1))
light = rtx.Object(geometry, material, mapping)
primary_light.add(light)
spread = grid_size / 2 - 1
primary_light.set_position(
(spread * random.uniform(-1, 1), 8, spread * random.uniform(-1, 1)))
scene.add(primary_light)
## Ambient light
ambient_lights = rtx.ObjectGroup()
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, 0, 0))
geometry.set_position((0, 0, -grid_size / 2))
material = rtx.EmissiveMaterial(1, visible=False)
wall = rtx.Object(geometry, material, mapping)
ambient_lights.add(wall)
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, -math.pi / 2, 0))
geometry.set_position((grid_size / 2, 0, 0))
material = rtx.EmissiveMaterial(1, visible=False)
wall = rtx.Object(geometry, material, mapping)
ambient_lights.add(wall)
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, math.pi, 0))
geometry.set_position((0, 0, grid_size / 2))
material = rtx.EmissiveMaterial(1, visible=False)
wall = rtx.Object(geometry, material, mapping)
ambient_lights.add(wall)
geometry = rtx.PlainGeometry(grid_size + eps, wall_height)
geometry.set_rotation((0, math.pi / 2, 0))
geometry.set_position((-grid_size / 2, 0, 0))
material = rtx.EmissiveMaterial(1, visible=False)
wall = rtx.Object(geometry, material, mapping)
ambient_lights.add(wall)
ambient_lights.set_position((0, wall_height, 0))
scene.add(ambient_lights)
# Place objects
r = grid_size // 4
r2 = r * 2
object_positions = generate_object_positions(args.num_objects, r2 - 1)
for position_index in object_positions:
geometry_type = random.choice(geometry_type_array)
geometry = build_geometry_by_type(geometry_type)
geometry.set_rotation((0, random.uniform(0, math.pi * 2), 0))
noise = np.random.uniform(-0.125, 0.125, size=2)
spread = 1.5
geometry.set_position((
spread * (position_index[0] - r + 1) + noise[0],
-wall_height / 2 + 0.5,
spread * (position_index[1] - r + 1) + noise[1],
))
material = rtx.LambertMaterial(0.9)
color = random.choice(color_array)
mapping = rtx.SolidColorMapping(color)
obj = rtx.Object(geometry, material, mapping)
scene.add(obj)
return scene
def place_dice(scene,
mnist_images,
discrete_position=False,
rotate_dice=False):
indices = np.random.choice(np.arange(len(mnist_images)),
replace=False,
size=6)
dice = rtx.ObjectGroup()
# 1
geometry = rtx.PlainGeometry(1, 1)
geometry.set_position((0, 0, 0.5))
material = rtx.LambertMaterial(0.95)
mapping = generate_texture_mapping(mnist_images[indices[0]])
face = rtx.Object(geometry, material, mapping)
dice.add(face)
# 2
geometry = rtx.PlainGeometry(1, 1)
geometry.set_rotation((0, -math.pi, 0))
geometry.set_position((0, 0, -0.5))
material = rtx.LambertMaterial(0.95)
mapping = generate_texture_mapping(mnist_images[indices[1]])
face = rtx.Object(geometry, material, mapping)
dice.add(face)
# 3
geometry = rtx.PlainGeometry(1, 1)
geometry.set_rotation((0, math.pi / 2, 0))
geometry.set_position((0.5, 0, 0))
material = rtx.LambertMaterial(0.95)
mapping = generate_texture_mapping(mnist_images[indices[2]])
face = rtx.Object(geometry, material, mapping)
dice.add(face)
# 4
geometry = rtx.PlainGeometry(1, 1)
geometry.set_rotation((0, -math.pi / 2, 0))
geometry.set_position((-0.5, 0, 0))
material = rtx.LambertMaterial(0.95)
mapping = generate_texture_mapping(mnist_images[indices[3]])
face = rtx.Object(geometry, material, mapping)
dice.add(face)
# 5
geometry = rtx.PlainGeometry(1, 1)
geometry.set_rotation((math.pi / 2, 0, 0))
geometry.set_position((0, -0.5, 0))
material = rtx.LambertMaterial(0.95)
mapping = generate_texture_mapping(mnist_images[indices[4]])
face = rtx.Object(geometry, material, mapping)
dice.add(face)
# 6
geometry = rtx.PlainGeometry(1, 1)
geometry.set_rotation((-math.pi / 2, 0, 0))
geometry.set_position((0, 0.5, 0))
material = rtx.LambertMaterial(0.95)
mapping = generate_texture_mapping(mnist_images[indices[5]])
face = rtx.Object(geometry, material, mapping)
dice.add(face)
dice.set_scale((1.5, 1.5, 1.5))
directions = [-1.0, 0.0, 1.0]
available_positions = []
for z in directions:
for x in directions:
available_positions.append((x, z))
xz = np.array(random.choice(available_positions))
if discrete_position == False:
xz += np.random.uniform(-0.25, 0.25, size=xz.shape)
dice.set_position((xz[0], 0.75, xz[1]))
if rotate_dice:
yaw = np.random.uniform(0, math.pi * 2, size=1)[0]
dice.set_rotation((0, yaw, 0))
scene.add(dice)
