DuplicateBlenderData — Blender source scenes for Structure from Duplicates (SfD)

The 3D source files behind the synthetic objects in DuplicateSingleImage, plus the HDRI environment maps used to light the renders. Use this repo if you want to re-render the objects, change the lighting, or build new duplicate-object scenes — for training SfD itself you only need DuplicateSingleImage.

Code: Tianhang-Cheng/SfD · Paper: arXiv:2401.05236

Layout

box, cash, cleaner, clock, coffee, fire, gitar, sign, tin
  <object>_clean.blend     # the Blender scene (cash/ is scene.blend)
  textures/                # the PBR maps the scene references
hdi/
  a.exr ... f.exr          # HDRI environment maps
  nv_box.hdr

hdi/b.exr, hdi/c.exr and hdi/d.exr are the maps the repo calls b/c/d; b and d are the two targets used by the relighting evaluation (--eval_relight).

Download

# whole thing (~770 MB)
hf download TianhangCheng7/DuplicateBlenderData --repo-type dataset --local-dir blender_data

# or from a clone of the SfD repo
python download_assets.py --blender-data blender_data

# just one environment map
hf download TianhangCheng7/DuplicateBlenderData hdi/b.exr --repo-type dataset

Open a .blend in Blender 3.x or newer. Textures are referenced with relative paths, so keep each object folder's textures/ next to its .blend.

Citation

@inproceedings{cheng2023structure,
  title={Structure from Duplicates: Neural Inverse Graphics from a Pile of Objects},
  author={Cheng, Tianhang and Ma, Wei-Chiu and Guan, Kaiyu and Torralba, Antonio and Wang, Shenlong},
  booktitle={Thirty-seventh Conference on Neural Information Processing Systems},
  year={2023}
}

Individual object meshes/textures and HDRIs come from third-party sources (e.g. Poly Haven); the original licenses of those assets apply to them.