def run(self):
# Set language if necessary
if bpy.context.preferences.view.language != "en_US":
print("Setting blender language settings to english during this run")
bpy.context.preferences.view.language = "en_US"
prefs = bpy.context.preferences.addons['cycles'].preferences
# Use cycles
bpy.context.scene.render.engine = 'CYCLES'
if platform == "darwin":
# there is no gpu support in mac os so use the cpu with maximum power
bpy.context.scene.cycles.device = "CPU"
bpy.context.scene.render.threads = multiprocessing.cpu_count()
else:
bpy.context.scene.cycles.device = "GPU"
preferences = bpy.context.preferences.addons['cycles'].preferences
for device_type in preferences.get_device_types(bpy.context):
preferences.get_devices_for_type(device_type[0])
for gpu_type in ["OPTIX", "CUDA"]:
found = False
for device in preferences.devices:
if device.type == gpu_type:
bpy.context.preferences.addons['cycles'].preferences.compute_device_type = gpu_type
print('Device {} of type {} found and used.'.format(device.name, device.type))
found = True
break
if found:
break
# make sure that all visible GPUs are used
for group in prefs.get_devices():
for d in group:
d.use = True
# setting the frame end, will be changed by the camera loader modules
bpy.context.scene.frame_end = 0
# Sets background color
world = bpy.data.worlds['World']
world.color[:3] = self.config.get_list("horizon_color", [0.535, 0.633, 0.608])
# Create the camera
cam = bpy.data.cameras.new("Camera")
cam_ob = bpy.data.objects.new("Camera", cam)
bpy.context.scene.collection.objects.link(cam_ob)
bpy.context.scene.camera = cam_ob
# Set default intrinsics
CameraUtility.set_intrinsics_from_blender_params(DefaultConfig.fov, DefaultConfig.resolution_x, DefaultConfig.resolution_y, DefaultConfig.clip_start, DefaultConfig.clip_end, DefaultConfig.pixel_aspect_x, DefaultConfig.pixel_aspect_y, DefaultConfig.shift_x, DefaultConfig.shift_y, "FOV")
CameraUtility.set_stereo_parameters(DefaultConfig.stereo_convergence_mode, DefaultConfig.stereo_convergence_distance, DefaultConfig.stereo_interocular_distance)
random_seed = os.getenv("BLENDER_PROC_RANDOM_SEED")
if random_seed:
print("Got random seed: {}".format(random_seed))
try:
random_seed = int(random_seed)
except ValueError as e:
raise e
random.seed(random_seed)
np_random.seed(random_seed)
def set_default_parameters():
""" Loads and sets default parameters defined in DefaultConfig.py """
# Set default intrinsics
CameraUtility.set_intrinsics_from_blender_params(
DefaultConfig.fov, DefaultConfig.resolution_x,
DefaultConfig.resolution_y, DefaultConfig.clip_start,
DefaultConfig.clip_end, DefaultConfig.pixel_aspect_x,
DefaultConfig.pixel_aspect_y, DefaultConfig.shift_x,
DefaultConfig.shift_y, "FOV")
CameraUtility.set_stereo_parameters(
DefaultConfig.stereo_convergence_mode,
DefaultConfig.stereo_convergence_distance,
DefaultConfig.stereo_interocular_distance)
# Init renderer
RendererUtility.init()
RendererUtility.set_samples(DefaultConfig.samples)
addon_utils.enable("render_auto_tile_size")
RendererUtility.toggle_auto_tile_size(True)
# Set number of cpu cores used for rendering (1 thread is always used for coordination => 1
# cpu thread means GPU-only rendering)
RendererUtility.set_cpu_threads(1)
RendererUtility.set_denoiser(DefaultConfig.denoiser)
RendererUtility.set_simplify_subdivision_render(
DefaultConfig.simplify_subdivision_render)
RendererUtility.set_light_bounces(
DefaultConfig.diffuse_bounces, DefaultConfig.glossy_bounces,
DefaultConfig.ao_bounces_render, DefaultConfig.max_bounces,
DefaultConfig.transmission_bounces,
DefaultConfig.transparency_bounces, DefaultConfig.volume_bounces)
def _set_cam_intrinsics(self, cam, config):
""" Sets camera intrinsics from a source with following priority
1. from config function parameter if defined
2. from custom properties of cam if set in Loader
3. default config
resolution_x/y: 512
pixel_aspect_x: 1
clip_start: : 0.1
clip_end : 1000
fov : 0.691111
:param cam: The camera which contains only camera specific attributes.
:param config: A configuration object with cam intrinsics.
"""
if config.is_empty():
return
width = config.get_int("resolution_x",
bpy.context.scene.render.resolution_x)
height = config.get_int("resolution_y",
bpy.context.scene.render.resolution_y)
# Clipping
clip_start = config.get_float("clip_start", cam.clip_start)
clip_end = config.get_float("clip_end", cam.clip_end)
if config.has_param("cam_K"):
if config.has_param("fov"):
print(
'WARNING: FOV defined in config is ignored. Mutually exclusive with cam_K'
)
if config.has_param("pixel_aspect_x"):
print(
'WARNING: pixel_aspect_x defined in config is ignored. Mutually exclusive with cam_K'
)
cam_K = np.array(config.get_list("cam_K")).reshape(3, 3).astype(
np.float32)
CameraUtility.set_intrinsics_from_K_matrix(cam_K, width, height,
clip_start, clip_end)
else:
# Set FOV
fov = config.get_float("fov", cam.angle)
# Set Pixel Aspect Ratio
pixel_aspect_x = config.get_float(
"pixel_aspect_x", bpy.context.scene.render.pixel_aspect_x)
pixel_aspect_y = config.get_float(
"pixel_aspect_y", bpy.context.scene.render.pixel_aspect_y)
# Set camera shift
shift_x = config.get_float("shift_x", cam.shift_x)
shift_y = config.get_float("shift_y", cam.shift_y)
CameraUtility.set_intrinsics_from_blender_params(fov,
width,
height,
clip_start,
clip_end,
pixel_aspect_x,
pixel_aspect_y,
shift_x,
shift_y,
lens_unit="FOV")
CameraUtility.set_stereo_parameters(
config.get_string("stereo_convergence_mode",
cam.stereo.convergence_mode),
config.get_float("convergence_distance",
cam.stereo.convergence_distance),
config.get_float("interocular_distance",
cam.stereo.interocular_distance))
def _set_cam_intrinsics(self, cam, config):
""" Sets camera intrinsics from a source with following priority
1. from config function parameter if defined
2. from custom properties of cam if set in Loader
3. default config:
resolution_x/y: 512
pixel_aspect_x: 1
clip_start: : 0.1
clip_end : 1000
fov : 0.691111
:param cam: The camera which contains only camera specific attributes.
:param config: A configuration object with cam intrinsics.
"""
if config.is_empty():
return
width = config.get_int("resolution_x",
bpy.context.scene.render.resolution_x)
height = config.get_int("resolution_y",
bpy.context.scene.render.resolution_y)
# Clipping
clip_start = config.get_float("clip_start", cam.clip_start)
clip_end = config.get_float("clip_end", cam.clip_end)
if config.has_param("cam_K"):
if config.has_param("fov"):
print(
'WARNING: FOV defined in config is ignored. Mutually exclusive with cam_K'
)
if config.has_param("pixel_aspect_x"):
print(
'WARNING: pixel_aspect_x defined in config is ignored. Mutually exclusive with cam_K'
)
cam_K = np.array(config.get_list("cam_K")).reshape(3, 3).astype(
np.float32)
CameraUtility.set_intrinsics_from_K_matrix(cam_K, width, height,
clip_start, clip_end)
else:
# Set FOV
fov = config.get_float("fov", cam.angle)
# Set Pixel Aspect Ratio
pixel_aspect_x = config.get_float(
"pixel_aspect_x", bpy.context.scene.render.pixel_aspect_x)
pixel_aspect_y = config.get_float(
"pixel_aspect_y", bpy.context.scene.render.pixel_aspect_y)
# Set camera shift
shift_x = config.get_float("shift_x", cam.shift_x)
shift_y = config.get_float("shift_y", cam.shift_y)
CameraUtility.set_intrinsics_from_blender_params(fov,
width,
height,
clip_start,
clip_end,
pixel_aspect_x,
pixel_aspect_y,
shift_x,
shift_y,
lens_unit="FOV")
CameraUtility.set_stereo_parameters(
config.get_string("stereo_convergence_mode",
cam.stereo.convergence_mode),
config.get_float("convergence_distance",
cam.stereo.convergence_distance),
config.get_float("interocular_distance",
cam.stereo.interocular_distance))
if config.has_param("depth_of_field"):
depth_of_field_config = Config(
config.get_raw_dict("depth_of_field"))
fstop_value = depth_of_field_config.get_float("fstop", 2.4)
aperture_blades = depth_of_field_config.get_int(
"aperture_blades", 0)
aperture_ratio = depth_of_field_config.get_float(
"aperture_ratio", 1.0)
aperture_rotation = depth_of_field_config.get_float(
"aperture_rotation_in_rad", 0.0)
if depth_of_field_config.has_param(
"depth_of_field_dist") and depth_of_field_config.has_param(
"focal_object"):
raise RuntimeError(
"You can only use either depth_of_field_dist or a focal_object but not both!"
)
if depth_of_field_config.has_param("depth_of_field_dist"):
depth_of_field_dist = depth_of_field_config.get_float(
"depth_of_field_dist")
CameraUtility.add_depth_of_field(cam, None, fstop_value,
aperture_blades,
aperture_rotation,
aperture_ratio,
depth_of_field_dist)
elif depth_of_field_config.has_param("focal_object"):
focal_object = depth_of_field_config.get_list("focal_object")
if len(focal_object) != 1:
raise RuntimeError(
f"There has to be exactly one focal object, use 'random_samples: 1' or change "
f"the selector. Found {len(focal_object)}.")
CameraUtility.add_depth_of_field(cam, focal_object[0],
fstop_value, aperture_blades,
aperture_rotation,
aperture_ratio)
else:
raise RuntimeError(
"The depth_of_field dict must contain either a focal_object definition or "
"a depth_of_field_dist")
