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# Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved.
#
# NVIDIA CORPORATION and its licensors retain all intellectual property
# and proprietary rights in and to this software, related documentation
# and any modifications thereto. Any use, reproduction, disclosure or
# distribution of this software and related documentation without an express
# license agreement from NVIDIA CORPORATION is strictly prohibited.
#
'''
Download specific Objaverse meshes given their UUIDs.
Installation:
pip install trimesh==4.5.3 objaverse==0.1.7 meshcat==0.0.12 webdataset==0.2.111
Usage:
python download_objaverse.py --uuid_list /path_to_dataset/splits/franka/valid_scenes.json --output_dir /tmp/objs
'''
import argparse
import json
import os
import shutil
from objaverse import load_objects
from pathlib import Path
from dataset import load_uuid_list
def download_objaverse_meshes(uuids: list[str], output_dir: str):
"""
Download specific Objaverse meshes given their UUIDs.
Args:
uuid_list_path (str): Path to JSON file containing list of UUIDs
output_dir (str): Directory where meshes will be saved
"""
# Create output directory if it doesn't exist
os.makedirs(output_dir, exist_ok=True)
print(f"Found {len(uuids)} UUIDs to download")
# Download objects using Objaverse
objects = load_objects(uids=uuids)
map_uuid_to_path = {}
# Save each object to the output directory
for uuid in uuids:
try:
# Get the object path from Objaverse
obj_path = objects[uuid]
if obj_path is None:
print(f"Failed to download object {uuid}")
continue
# Create destination path
dest_path = os.path.join(output_dir, os.path.basename(obj_path))
shutil.copy2(obj_path, dest_path)
print(f"Successfully downloaded and saved object {uuid}, saved to {dest_path}")
map_uuid_to_path[uuid] = dest_path
os.remove(obj_path)
json.dump(map_uuid_to_path, open(os.path.join(output_dir, "map_uuid_to_path.json"), "w"))
except Exception as e:
print(f"Error processing object {uuid}: {e}")
print("Download complete!")
def parse_args():
parser = argparse.ArgumentParser()
parser.add_argument("--uuid_list", type=str, help="Path to UUID list or Json. This can be the split json file from the GraspGen dataset")
parser.add_argument("--output_dir", type=str, help="Path to output directory")
return parser.parse_args()
if __name__ == "__main__":
args = parse_args()
uuid_list = load_uuid_list(args.uuid_list)
download_objaverse_meshes(uuid_list, args.output_dir) |