Update README metadata and add LICENSE file

LICENSE

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+Tencent is pleased to support the community by making Pixal3D available.
+
+Copyright (C)  2026 Tencent.  All rights reserved. 
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+The open-source software and/or models included in this distribution may have been modified by Tencent (“Tencent Modifications”). All Tencent Modifications are Copyright (C) Tencent.
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+Pixal3D is licensed under License Term of Pixal3D, except for the third-party components listed below, which remain licensed under their respective original terms. Pixal3D does not impose any additional restrictions beyond those specified in the original licenses of these third-party components. Users are required to comply with all applicable terms and conditions of the original licenses and to ensure that the use of these third-party components conforms to all relevant laws and regulations.
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+This open-source project builds upon the following open-source models and/or software components, each of which remains licensed under its original license.
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+Open Model Licensed under the  Apache-2.0:
+--------------------------------------------------------------------
+1. dinov2
+Copyright (c) 2025 dinov2 original author and authors
+
+Open Source Software Licensed under the MIT License:
+--------------------------------------------------------------------
+2. TRELLIS.2
+Copyright (c) Microsoft Corporation.
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+3. Direct3D-S2
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+4. MoGe
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README.md

@@ -1,3 +1,120 @@
 ---
-license: mit
+license: other
+license_name: pixal3d-license
+license_link: LICENSE
+extra_gated_eu_disallowed: true
 ---
+
+<div align="center">
+
+# Pixal3D: Pixel-Aligned 3D Generation from Images
+
+<h3>SIGGRAPH 2026</h3>
+
+[Dong-Yang Li](https://ldyang694.github.io/)¹ · [Wang Zhao](https://thuzhaowang.github.io/)²* · [Yuxin Chen](https://orcid.org/0000-0002-7854-1072)² · [Wenbo Hu](https://wbhu.github.io/)² · [Meng-Hao Guo](https://menghaoguo.github.io/)¹ · [Fang-Lue Zhang](https://fanglue.github.io/)³ · [Ying Shan](https://www.linkedin.com/in/YingShanProfile)² · [Shi-Min Hu](https://cg.cs.tsinghua.edu.cn/shimin.htm)¹✉
+
+¹Tsinghua University (BNRist) &nbsp;&nbsp; ²Tencent ARC Lab &nbsp;&nbsp; ³Victoria University of Wellington
+
+*Project lead &nbsp;&nbsp; ✉Corresponding author
+
+</div>
+
+<div align="center">
+  <a href="https://ldyang694.github.io/projects/pixal3d/"><img src=https://img.shields.io/badge/Project%20Page-333399.svg?logo=googlehome height=22px></a>
+  <a href="https://huggingface.co/spaces/TencentARC/Pixal3D"><img src=https://img.shields.io/badge/%F0%9F%A4%97%20Demo-276cb4.svg height=22px></a>
+  <a href="https://huggingface.co/TencentARC/Pixal3D"><img src=https://img.shields.io/badge/%F0%9F%A4%97%20Models-d96902.svg height=22px></a>
+  <a href="https://arxiv.org/abs/2605.10922"><img src=https://img.shields.io/badge/Arxiv-b5212f.svg?logo=arxiv height=22px></a>
+</div>
+
+<div align="center">
+    <img src="assets/teaser.png" alt="Teaser image of Pixal3D"/>
+</div>
+
+**Pixal3D** generates high-fidelity 3D assets from a single image. Unlike previous methods that loosely inject image features via attention, Pixal3D explicitly lifts pixel features into 3D through back-projection, establishing direct pixel-to-3D correspondences. This enables near-reconstruction-level fidelity with detailed geometry and PBR textures.
+
+---
+
+## ✨ News
+
+- **May 2026**: Release the improved version based on [Trellis.2](https://github.com/microsoft/TRELLIS.2) backbone. 💪
+- **May 2026**: Release inference code and online demo. 🤗
+- **Apr 2026**: Our paper is accepted to SIGGRAPH 2026! 🎉
+
+## 📌 Branches
+
+| Branch | Description |
+|--------|-------------|
+| `main` | **Latest version** — improved implementation based on [Trellis.2](https://github.com/microsoft/TRELLIS.2) backbone with better performance. |
+| `paper` | **Paper version** — original implementation based on [Direct3D-S2](https://github.com/DreamTechAI/Direct3D-S2), corresponding to results reported in our SIGGRAPH 2026 paper. |
+
+> If you want to reproduce the results in our paper, please switch to the `paper` branch.
+
+## 🎮 Try It Online
+
+You can try Pixal3D directly in your browser without any installation via our Hugging Face Gradio demo:
+
+👉 [**Launch Demo**](https://huggingface.co/spaces/TencentARC/Pixal3D)
+
+## 🚀 Getting Started
+
+### Installation
+
+#### Step 1: Follow TRELLIS.2 Installation
+
+Please first follow the installation guide of [TRELLIS.2](https://github.com/microsoft/TRELLIS.2) to set up the base environment.
+
+#### Step 2: Install Additional Dependencies
+
+```bash
+pip install -r requirements.txt
+```
+
+#### Step 3: Install utils3d
+
+```bash
+pip install https://github.com/LDYang694/Storages/releases/download/20260430/utils3d-0.0.2-py3-none-any.whl
+```
+
+> **Note**: `requirements-hfdemo.txt` is for the Hugging Face Spaces demo (H-series GPU architecture) and may not be compatible with other architectures.
+
+### Usage
+
+#### Inference
+
+Generate a GLB mesh from a single image:
+
+```bash
+python inference.py --image assets/test_image/0.png --output ./output.glb
+```
+
+### Web Demo
+
+We provide a Gradio web demo for Pixal3D, which allows you to generate 3D meshes from images interactively.
+
+```bash
+python app.py 
+```
+
+## 🤗 Acknowledgements
+
+This project is heavily built upon [Trellis.2](https://github.com/microsoft/TRELLIS.2) and [Direct3D-S2](https://github.com/DreamTechAI/Direct3D-S2). We sincerely thank the authors for their outstanding work on scalable 3D generation , which serves as the foundation of our codebase and model architecture.
+
+We also thank the following repos for their great contributions:
+
+- [Direct3D-S2](https://github.com/DreamTechAI/Direct3D-S2)
+- [Trellis](https://github.com/microsoft/TRELLIS)
+- [Trellis.2](https://github.com/microsoft/TRELLIS.2)
+
+## 📄 Citation
+
+If you find this work useful, please consider citing:
+
+```bibtex
+@article{li2026pixal3d,
+    title   = {Pixal3D: Pixel-Aligned 3D Generation from Images},
+    author  = {Li, Dong-Yang and Zhao, Wang and Chen, Yuxin and Hu, Wenbo and Guo, Meng-Hao and Zhang, Fang-Lue and Shan, Ying and Hu, Shi-Min},
+    year    = {2026}
+}
+```
+
+