suvadityamuk/google-scanned-objects-smoketest

Google Scanned Objects (WebDataset)

A load_dataset-ready WebDataset packaging of the Google Scanned Objects dataset: high-quality 3D scans of common household items. Each object provides the original mesh/material/texture, five render thumbnails, structured metadata, and a normalized GLB produced with trimesh for direct use in 3D pipelines (e.g. TRELLIS-2 fine-tuning).

• Objects: 5
• Shards: 1 (data/gso-train-*.tar)
• License: Creative Commons Attribution 4.0 International (cc-by-4.0)

Usage

from datasets import load_dataset

ds = load_dataset("suvadityamuk/google-scanned-objects-smoketest", split="train")
sample = ds[0]
print(sample["json"]["name"], sample["json"]["category"])
sample["texture.png"]        # PIL.Image (diffuse texture)
sample["thumbnail_0.jpg"]    # PIL.Image (render)
glb_bytes = sample["glb"]    # bytes of a self-contained, normalized .glb

Streaming works too (no full download):

ds = load_dataset("suvadityamuk/google-scanned-objects-smoketest", split="train", streaming=True)
sample = next(iter(ds))

GLB is a recognized mesh extension in the datasets WebDataset builder, so glb is loaded as a Mesh feature and rendered in the dataset viewer. A recent datasets version is required for the Mesh feature.

Per-sample fields

field	type	description
obj	bytes	original model.obj mesh
mtl	bytes	original model.mtl material
texture.png	Image	diffuse texture
glb	Mesh	normalized, self-contained GLB (see below)
thumbnail_0.jpg .. thumbnail_4.jpg	Image	5 render thumbnails
json	dict	metadata + glb_processing stats

The json field contains: object_id, name, description, version, category, annotations (e.g. brand, gtin, sku), author, license, license_id, license_url, copyright, source, num_thumbnails_original, and glb_processing.

GLB normalization (trimesh)

Produced deterministically per object with trimesh==4.12.2:

1. Copy materials/textures/texture.png next to the OBJ so the MTL's map_Kd texture.png resolves and the diffuse map binds.
2. trimesh.load(obj, process=False, force="mesh") — preserves UVs, flattens to a single mesh.
3. Translate the axis-aligned bounding-box center to the origin.
4. Uniformly scale so the longest AABB edge is 1.0 (fits a unit cube).
5. Preserve UVs (no vertex merge); recompute normals only if missing.
6. Export a self-contained .glb with the texture embedded.

Every object's exact transform (applied_translation, applied_scale), mesh stats (vertices, faces, is_watertight, surface_area_normalized, orig_extents, final_extents, texture_size, glb_size_bytes) and any warnings are recorded in json["glb_processing"] and aggregated in stats/processing_log.jsonl.

License & attribution

This dataset is a repackaging of the Google Scanned Objects dataset by Google LLC, licensed under Creative Commons Attribution 4.0 International (cc-by-4.0).

"Google Scanned Objects", Copyright 2020 Google LLC, licensed under CC BY 4.0.

You must give appropriate credit when using this data. See the LICENSE file and each object's json["copyright"] / json["license"] fields.