Add model card, CC BY-NC 4.0 license, and checksums

LICENSE

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+MatLat Pretrained Checkpoint License
+
+The MatLat checkpoint weights in this repository are licensed under the
+Creative Commons Attribution-NonCommercial 4.0 International License
+(CC BY-NC 4.0).
+
+License deed and legal code:
+https://creativecommons.org/licenses/by-nc/4.0/
+
+This license applies to the MatLat checkpoint weights and repository-authored
+release metadata. It does not relicense third-party software, model weights,
+or other dependencies used by the MatLat codebase.

README.md

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+---
+library_name: pytorch
+license: cc-by-nc-4.0
+tags:
+  - pbr
+  - texture-generation
+  - material-generation
+  - 3d
+  - matlat
+---
+
+# MatLat Pretrained Checkpoints
+
+Pretrained submission-version checkpoints for
+[MatLat: Material Latent Space for PBR Texture Generation](https://arxiv.org/abs/2512.17302).
+
+- `matvae_v.ours.pt`: MatVAE material autoencoder checkpoint (`global_step=200000`).
+- `matdiff_v.ours.safetensors`: MatDiff text- and geometry-conditioned diffusion checkpoint.
+
+Use them with the [official code](https://github.com/32V/mcgen).
+
+## Download
+
+```bash
+mkdir -p checkpoints
+
+hf download 32V/MatLat \
+  matvae_v.ours.pt \
+  matdiff_v.ours.safetensors \
+  --revision v1.0.0 \
+  --local-dir checkpoints
+```
+
+## Inference
+
+Run from the root of the MatLat code repository:
+
+```bash
+python inference.py \
+  --config configs/submission/matdiff_v.ours.yaml \
+  --weights checkpoints/matdiff_v.ours.safetensors \
+  --mesh assets/motorcycle_cafe_racer/motorcycle_cafe_racer.obj \
+  --prompt "a matte olive green cafe racer motorcycle with brushed steel parts" \
+  --guidance 5.0 \
+  --steps 30 \
+  --seed 42 \
+  --precision bf16 \
+  --out outputs/demo
+```
+
+The MatVAE path and submission camera directions are selected by
+`configs/submission/matdiff_v.ours.yaml`.
+
+## License
+
+The MatLat checkpoint weights are released under the
+[Creative Commons Attribution-NonCommercial 4.0 International License](https://creativecommons.org/licenses/by-nc/4.0/)
+(CC BY-NC 4.0). The license permits sharing and adaptation with appropriate
+attribution for non-commercial purposes. It does not relicense third-party
+software or model dependencies used by the official code.
+
+## File Integrity
+
+```text
+f2c0d886823d7f11fe97220503ce08069e7c1b84915b27597a198bdce307e1e9  matvae_v.ours.pt
+4f464112834f3a3d621cb780078e341026a62f700cec04ad7a20bc2d414dbb43  matdiff_v.ours.safetensors
+```
+
+## Citation
+
+```bibtex
+@inproceedings{yeo2026matlat,
+  title     = {MatLat: Material Latent Space for PBR Texture Generation},
+  author    = {Yeo, Kyeongmin and Min, Yunhong and Kim, Jaihoon and Sung, Minhyuk},
+  booktitle = {Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
+  year      = {2026},
+}
+```

SHA256SUMS

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+f2c0d886823d7f11fe97220503ce08069e7c1b84915b27597a198bdce307e1e9  matvae_v.ours.pt
+4f464112834f3a3d621cb780078e341026a62f700cec04ad7a20bc2d414dbb43  matdiff_v.ours.safetensors