Rep.create.from_usd or rep.create.from_dir Replicator version 1.10.10

Omniverse Synthetic Data Generation (SDG)
1

When I integrate the following code into my script

def get_objs(dir_path, obj_type=".usdc"):
    textures = []
    dir_path = str(Path(dir_path))
    dir_path = dir_path + "/"
    for file in os.listdir(dir_path):
        if file.endswith(obj_type):
            textures.append(dir_path + file)
    return textures

OBJ_DIR = Path("D:\Porosity\objPorosities")
porosities = get_objs(OBJ_DIR, ".usdc")

(...)

def rand_porosities():
    porosity = rep.distribution.choice(porosities)
    defect = rep.create.from_usd(porosity)
    with defect:
        rep.modify.semantics([("class", "porosity")])
        rep.randomizer.scatter_2d(target_object, seed=int(datetime.now().timestamp()))
        rep.modify.attribute("scale", rep.distribution.uniform((0.05, 0.05, 0.05), (0.3, 0.3, 0.3)))
    return defect.node

rep.randomizer.register(rand_porosities)

I get the following error meassages:

2025-05-30 14:22:14  [Error] [omni.kit.app.plugin] [py stderr]: ArgumentError: Python argument types in
2025-05-30 14:22:14  [Error] [omni.kit.app.plugin]     References.AddReference(References, ReplicatorItem)
2025-05-30 14:22:14  [Error] [omni.kit.app.plugin] did not match C++ signature:
2025-05-30 14:22:14  [Error] [omni.kit.app.plugin]     AddReference(class pxrInternal_v0_22__pxrReserved__::UsdReferences {lvalue}, class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > assetPath, class pxrInternal_v0_22__pxrReserved__::SdfLayerOffset layerOffset=Sdf.LayerOffset(), enum pxrInternal_v0_22__pxrReserved__::UsdListPosition position=Usd.ListPositionBackOfPrependList)
2025-05-30 14:22:14  [Error] [omni.kit.app.plugin]     AddReference(class pxrInternal_v0_22__pxrReserved__::UsdReferences {lvalue}, class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > assetPath, class pxrInternal_v0_22__pxrReserved__::SdfPath primPath, class pxrInternal_v0_22__pxrReserved__::SdfLayerOffset layerOffset=Sdf.LayerOffset(), enum pxrInternal_v0_22__pxrReserved__::UsdListPosition position=Usd.ListPositionBackOfPrependList)
2025-05-30 14:22:14  [Error] [omni.kit.app.plugin]     AddReference(class pxrInternal_v0_22__pxrReserved__::UsdReferences {lvalue}, class pxrInternal_v0_22__pxrReserved__::SdfReference ref, enum pxrInternal_v0_22__pxrReserved__::UsdListPosition position=Usd.ListPositionBackOfPrependList)

I can’t understand why the rep.create.from_usd(porosity) is causing the error even though the path to the .usdc seems to be fine. What else am I doing wrong?
(Replicator Python API 1.10.10)

3

I’ve changed to the rep.create.from_dir() method and managed to import the desired objects, but each time a new object is imported replicator adds a visible cubeXform and an env_light, is there any way to remove these additional elements?

4

Can you try using rep.randomizer.instantiate(). API docs and example here: