Openpi Comet: Competition Solution For 2025 BEHAVIOR Challenge

2nd Place at 2025 BEHAVIOR Challenge

NVIDIA. 2025.

[Project Page] [Paper]

World Simulation With Video Foundation Models for Physical AI

NVIDIA. 2025.

[Project Page] [Paper]

Cosmos-Reason1: From Physical Common Sense To Embodied Reasoning

NVIDIA. 2025.

[Project Page] [Paper]

SAGE: Scalable Agentic 3D Scene Generation for Embodied AI

Hongchi Xia, Xuan Li, Zhaoshuo Li, Qianli Ma, Jiashu Xu, Ming-Yu Liu, Yin Cui, Tsung-Yi Lin, Wei-Chiu Ma, Shenlong Wang, Shuran Song, Fangyin Wei.

Conference on Computer Vision and Pattern Recognition (CVPR). 2026.

[Paper] [Code] [Data] [Project Page]

Efficient Part-level 3D Object Generation via Dual Volume Packing

Jiaxiang Tang, Ruijie Lu, Zhaoshuo Li, Zekun Hao, Xuan Li, Fangyin Wei, Shuran Song, Gang Zeng, Ming-Yu Liu, Tsung-Yi Lin.

Neural Information Processing Systems (NeurIPS). 2025.

[Paper] [Project Page]

Accurate and Efficient Multi-Material Simulations for Physics-Integrated Digital Twins

Ph.D. Dissertation

Xuan Li.

University of California, Los Angeles. 2025.

[Paper]

PhysMotion: Physics-Grounded Dynamics From a Single Image

Xiyang Tan*, Ying Jiang*, Xuan Li* (equal contributions), Zeshun Zong, Tianyi Xie, Yin Yang, Chenfanfu Jiang.

International Conference on 3D Vision (3DV). 2026.

[Paper] [Project Page]

Dress-1-to-3: Single Image to Simulation-Ready 3D Outfit with Diffusion Prior and Differentiable Physics

Xuan Li*, Chang Yu*, Wenxin Du*, Ying Jiang* (equal contributions), Tianyi Xie, Yunuo Chen, Yin Yang, Chenfanfu Jiang.

ACM Transactions On Graphics (SIGGRAPH). 2025.

[Paper] [Project Page]

Articulated Kinematics Distillation from Video Diffusion Models

Xuan Li, Qianli Ma, Tsung-Yi Lin, Yongxin Chen, Chenfanfu Jiang, Ming-Yu Liu, Donglai Xiang.

Conference on Computer Vision and Pattern Recognition (CVPR). 2025.

[Paper] [Project Page]

GeoWarp: An automatically differentiable and GPU‑accelerated implicit MPM framework for geomechanics based on NVIDIA Warp

Yidong Zhao, Xuan Li, Chenfanfu Jiang, Jinhyun Choo.

Advances in Engineering Software. 2025.

[Paper] [Code]

GarmentDreamer: 3DGS Guided Garment Synthesis with Diverse Geometry and Texture Details

Boqian Li*, Xuan Li*, Ying Jiang* (equal contributions), Tianyi Xie, Feng Gao, Huamin Wang, Yin Yang, Chenfanfu Jiang.

International Conference on 3D Vision (3DV). 2025.

[Paper] [Code] [Project Page]

Atlas3D: Physically Constrained Self-Supporting Text-to-3D for Simulation and Fabrication

Yunuo Chen*, Tianyi Xie*, Zeshun Zong* (equal contributions), Xuan Li, Feng Gao, Yin Yang, Ying Nian Wu, Chenfanfu Jiang.

Neural Information Processing Systems (NeurIPS). 2024.

[Paper] [Project Page]

XPBI: Position-Based Dynamics with Smoothing Kernels Handles Continuum Inelasticity

Chang Yu*, Xuan Li* (equal contributions), Lei Lan, Yin Yang, Chenfanfu Jiang.

SIGGRAPH Asia. 2024.

[Paper] [Video]

Efficient Cloth Simulation Using Non-distance Barriers and Subspace Reuse

Lei Lan, Zixuan Lu, Jingyi Long, Chun Yuan, Xuan Li, Xiaowei He, Huamin Wang, Chenfanfu Jiang, Yin Yang.

ACM Transactions On Graphics (SIGGRAPH Asia). 2024.

[Paper]

A Dynamic Duo of Finite Elements and Material Points

Xuan Li, Minchen Li, Xuchen Han, Huamin Wang, Yin Yang, Chenfanfu Jiang.

SIGGRAPH. 2024.

[Paper] [Video]

VR-GS: A Physical Dynamics-Aware Interactive Gaussian Splatting System in Virtual Reality

Ying Jiang*, Chang Yu*, Tianyi Xie*, Xuan Li* (equal contributions), Yutao Feng, Huamin Wang, Minchen Li, Henry Lau, Feng Gao, Yin Yang, Chenfanfu Jiang.

SIGGRAPH. 2024.

[Paper] [Project Page]

PhysGaussian: Physics-Integrated 3D Gaussians for Generative Dynamics

Highlight (11.9%)

Tianyi Xie*, Zeshun Zong*, Yuxing Qiu*, Xuan Li* (equal contributions), Yutao Feng, Yin Yang, Chenfanfu Jiang.

Conference on Computer Vision and Pattern Recognition (CVPR). 2024.

[Paper] [Project Page]

PIE-NeRF: Physics-based Interactive Elastodynamics with NeRF

Yutao Feng, Yintong Shang, Xuan Li, Tianjia Shao, Chenfanfu Jiang, Yin Yang.

Conference on Computer Vision and Pattern Recognition (CVPR). 2024.

[Paper] [Project Page]

Bistable Aerial Transformer (BAT): A Quadrotor Fixed-Wing Hybrid that Morphs Dynamically via Passive Soft Mechanism

Jessica Weakly*, Xuan Li* (equal contributions), Tejas Agarwal, Minchen Li, Spencer Folk, Chenfanfu Jiang, Cynthia Sung.

Journal of Mechanisms and Robotics (JMR). 2024.

[Paper] [Video]

PAC-NeRF: Physics Augmented Continuum Neural Radiance Fields for Geometry-Agnostic System Identification

Notable-Top-25%

Xuan Li, Yi-Ling Qiao, Peter Yichen Chen, Krishna Murthy Jatavallabhula, Ming Lin, Chenfanfu Jiang, Chuang Gan.

International Conference on Learning Representations (ICLR). 2023.

[Paper] [Code] [Poster] [Data] [OpenReview] [Project Page]

Subspace-Preconditioned GPU Projective Dynamics with Contact for Cloth Simulation

Xuan Li, Yu Fang, Lei Lan, Huamin Wang, Yin Yang, Minchen Li, Chenfanfu Jiang.

SIGGRAPH Asia. 2023.

[Paper] [Video]

Neural Stress Fields for Reduced-order Elastoplasticity and Fracture

Zeshun Zong, Xuan Li, Minchen Li, Maurizio M. Chiaramonte, Wojciech Matusik, Eitan Grinspun, Kevin Carlberg, Chenfanfu Jiang, Peter Yichen Chen.

SIGGRAPH Asia. 2023.

[Paper] [Video]

Augmented Incremental Potential Contact for Sticky Interactions

Yu Fang*, Minchen Li* (equal contributions), Yadi Cao, Xuan Li, Joshuah Wolper, Yin Yang, Chenfanfu Jiang.

IEEE Transactions on Visualization and Computer Graphics (TVCG). 2023.

[Paper] [Video]

A Generalized Constitutive Model for Versatile MPM Simulation and Inverse Learning with Differentiable Physics

Haozhe Su*, Xuan Li* (equal contributions), Tao Xue, Chenfanfu Jiang, Mridul Aanjaneya.

Symposium on Computer Animation (SCA). 2023.

[Paper] [Video] [Project Page]

PlasticityNet: Learning to Simulate Metal, Sand, and Snow for Optimization Time Integration

Xuan Li, Yadi Cao, Minchen Li, Yin Yang, Craig Schroeder, Chenfanfu Jiang.

Neural Information Processing Systems (NeurIPS). 2022.

[Paper] [Video] [Demo] [Poster] [OpenReview]

Energetically Consistent Inelasticity for Optimization Time Integration

Xuan Li, Minchen Li, Chenfanfu Jiang.

ACM Transactions On Graphics (SIGGRAPH). 2022.

[Paper] [Video] [TechDoc]

BFEMP: Interpenetration-Free MPM-FEM Coupling with Barrier Contact

Xuan Li*, Yu Fang* (equal contributions), Minchen Li, Chenfanfu Jiang.

Computer Methods in Applied Mechanics and Engineering (CMAME). 2022.

[Paper]

Soft Hybrid Aerial Vehicle via Bistable Mechanism

Best Paper Award in Mechanisms and Design

Xuan Li*, Jessica McWilliams* (equal contributions), Minchen Li, Cynthia Sung, Chenfanfu Jiang.

International Conference on Robotics and Automation (ICRA). 2021.

[Paper] [Video] [Slides]

Lagrangian-Eulerian Multi-Density Topology Optimization with the Material Point Method

Yue Li*, Xuan Li*, Minchen Li* (equal contributions), Yixin Zhu, Bo Zhu, Chenfanfu Jiang.

International Journal for Numerical Methods in Engineering (IJNME). 2021.

[Paper]

Polycube Shape Space

Hui Zhao, Xuan Li, Na Lei, Xiaoling Wang, Shaodong Wang, Wencheng Wang, Xiangfeng Gu.

Pacific Graphics (PG). 2019.

[Paper] [Slides]

Conformal Mesh Parameterization using Discrete Calabi Flow

Hui Zhao, Xuan Li, Huabin Ge, Na Lei, Min Zhang, Xiaoling Wang, Xianfeng Gu.

Geometric Modeling and Processing (GMP). 2018.

[Paper] [Slides] [Data]

Robust Edge-Preserved Surface Mesh Polycube Deformation

Hui Zhao, Na Lei, Xuan Li, Peng Zeng, Ke Xu, Xianfeng Gu.

Pacific Graphics (PG) Short Paper. 2017.

[Paper]

Differentiable Rasterizer for Vector Font Generation and Editing

Zhaowen Wang, Zhifei Zhang, Xuan Li, Matthew Fisher, and Hailin Jin.

US11392806B2. Adobe Inc. 2022.