wchen99998/american-residential-housing-hunyuan3d-glb

American Building Hunyuan3D GLB Assets

This dataset contains 40 generated American building assets:

• 10 residential buildings
• 15 office buildings
• 15 industrial buildings

Each asset includes:

• source_images/*.png: isolated building reference image on a white background.
• glbs/*.glb: final textured GLB generated with Hunyuan3D-2.1.
• metadata/*.json: per-asset generation parameters and timings.
• verification_summary.json: automated validation summary for all final GLBs.
• dataset_manifest.csv and dataset_manifest.json: per-asset category, geometry, material, and path metadata.
• asset_manifest.md and commercial_industrial_asset_manifest.md: source-image specifications.
• scripts/ and src/: generation, verification, and in-house QEM LOD tooling.

Game-ready in-house QEM-reduced base and LOD assets are included under lods/.

Generation

Source images were generated as isolated building-only reference images on white backgrounds. Final 3D assets were generated using tencent-hunyuan/hunyuan3d-2.1 with two H100 NVL GPUs.

Final batch settings:

• shape steps: 50
• guidance scale: 7.5
• octree resolution: 384
• decoder chunks: 8000
• texture views: 8
• texture resolution: 768
• mesh face cap before texture pipeline: 100000

Game-Ready Reduction

The original generated assets remain under glbs/ as source-quality 40k-triangle GLBs. Reduced game-ready variants are generated with a local feature-aware, attribute-aware Quadric Error Metric edge-collapse reducer implemented in src/qem_reduce_obj.cpp and orchestrated by scripts/generate_qem_lods.py.

Reduction tiers:

• lods/base_10000/*.glb: default game-ready base meshes
• lods/lod1_5000/*.glb
• lods/lod2_2500/*.glb
• lods/lod3_1000/*.glb

Verification

All final GLBs were loaded and verified with trimesh and pygltflib.

Verification checks included:

• nonzero GLB file size
• valid GLB header
• at least one geometry
• nonzero vertices/faces
• at least one material
• texture and image entries present
• matching source image and metadata

See verification_summary.json for per-asset counts.

License And Use Notes

These assets were generated with Hunyuan3D-2.1. Hunyuan3D is distributed by Tencent under its Hunyuan license terms. Review the upstream Hunyuan3D-2.1 license and any applicable generated-content terms before commercial game use.