Xinyu Lian

Xinyu Lian

PhD @ FDU

I am a second-year Ph.D. student (2025 Fall) at the College of Computer Science and Artificial Intelligence, Fudan University, advised by Prof. Bo Dai @ HKU and Prof. Dahua Lin @ CUHK. I am currently interning at Shanghai AI Lab, working on Generative Models for Embodied AI.

My research interest includes World Model, 3D Generation and structured visual modeling.

🔥 News

  • 2026.07:  🎉🎉 Our work MegaParts: Scaling Part-Aware 3D Object Generation to 300 Parts via Token-Efficient Autoregressive Modeling has been conditionally accepted to Siggraph Asia 2026. See you in Malaysia!

📝 Publications

Arxiv
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Infinite Mobility: Scalable High-Fidelity Synthesis of Articulated Objects via Procedural Generation

Xinyu Lian, Zichao Yu, Ruiming Liang, Yitong Wang, Li Ray Luo, Kaixu Chen, Yuanzhen Zhou, Qihong Tang, Xudong Xu, Zhaoyang Lyu, Bo Dai, Jiangmiao Pang

Code

  • A procedural framework for articulated objects generation.
NeurIPS 2025
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MeshCoder: LLM-Powered Structured Mesh Code Generation from Point Clouds

Bingquan Dai*, Li Ray Luo*, Qihong Tang, Jie Wang, Xinyu Lian, Hao Xu, Minghan Qin, Xudong Xu, Bo Dai, Haoqian Wang, Zhaoyang Lyu, Jiangmiao Pang

Code

  • Turning point cloud to shape code.
Siggraph Asia 2026
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MegaParts: Scaling Part-Aware 3D Object Generation to 300 Parts via Token-Efficient Autoregressive Modeling

Manwen Liao*, Xinyu Lian*, Jian Mao*, Kaixu Chen, Li Luo, Jinghao Yan, Wanshui Gan, Qiao Yu, Weitian Zhang，Chunhua Shen, Guang Chen, Bo Dai, Xudong Xu, Zhaoyang Lyu

Code coming soon!

  • Part-aware 3D generation to 300 parts.
Coming Soon
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From Parts to Sim: Bottom-up Autoregressive Generation of Sim-Ready 3D Assets

Xinyu Lian*, Jian Mao*, Wanshui Gan*, Jinghao Yan, Kaixu Chen, Manwen Liao, Weipeng Zhong, Qiao Yu, Yunsong Zhou, Jiafei Cao, Chunhua Shen, Guang Chen, Bo Dai, Zhaoyang Lyu

Code coming soon!

  • Sim-Ready 3D assets generation.
  • More works regarding artist mesh generation voxel neural renderer and scene-level real2sim are coming!

📖 Educations

  • 2021.09 - 2025.06, B.E., School of Computer Science and Technology, South China University of Technology.
  • 2025.09 - 2030.06(now), PhD., College of Computer Science and Artificial Intelligence, Fudan University.

💻 Internships