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Tianyi Xie

Ph.D. Candidate
University of California, Los Angeles
tianyixie77 (at) g.ucla.edu


About Me

I am a PhD candidate at the UCLA AIVC Lab, advised by Prof. Chenfanfu Jiang and Prof. Demetri Terzopoulos. I obtained my M.S. degree in Computer Science from UCLA and my B.Eng. degree in Software Engineering from Shanghai Jiao Tong University. Prior to UCLA, I spent a gap year as a research intern in Bytedance AI Lab.

My current research interests focus on physics-based simulation and generative AI for digital content creation. I am particularly interested in developing models that are physically constrained and controllable for the generation of 2D, 3D, and 4D content.

Selected Publications

  1. 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 contribution), Tianyi Xie, Yunuo Chen, Yin Yang, Chenfanfu Jiang
    ACM Transactions On Graphics (SIGGRAPH), 2025.
    PDF Project Page

  2. PhysAnimator: Physics-Guided Generative Cartoon Animation
    Tianyi Xie, Yiwei Zhao, Ying Jiang, Chenfanfu Jiang
    Conference on Computer Vision and Pattern Recognition (CVPR), 2025.
    PDF Project Page

  3. GRIP: A General Robotic Incremental Potential Contact Simulation Dataset for Unified Deformable-Rigid Coupled Grasping
    Siyu Ma*, Wenxin Du*, Chang Yu*, Ying Jiang* (*equal contribution), Zeshun Zong, Tianyi Xie, Yunuo Chen, Yin Yang, Xuchen Han, Chenfanfu Jiang
    arXiv, 2025.
    PDF Project Page Video

  4. VideoPhy: Evaluating Physical Commonsense In Video Generation
    Hritik Bansal^, Zongyu Lin^, Tianyi Xie*, Zeshun Zong*, Michal Yarom~, Yonatan Bitton~ (*equal contribution), Chenfanfu Jiang, Yizhou Sun, Kai-Wei Chang, Aditya Grover
    International Conference on Learning Representations (ICLR), 2025.
    PDF Code Project Page

  5. GarmentDreamer: 3DGS Guided Garment Synthesis with Diverse Geometry and Texture Details
    Boqian Li*, Xuan Li*, Ying Jiang*, (*equal contribution), Tianyi Xie, Feng Gao, Huamin Wang, Yin Yang, Chenfanfu Jiang
    International Conference on 3D Vision (3DV), 2025.
    PDF Project Page

  6. PhysMotion: Physics-Grounded Dynamics From a Single Image
    Xiyang Tan*, Ying Jiang*, Xuan Li* (*equal contribution), Zeshun Zong, Tianyi Xie, Yin Yang, Chenfanfu Jiang
    arXiv, 2024.
    PDF Project Page

  7. Atlas3D: Physically Constrained Self-Supporting Text-to-3D for Simulation and Fabrication
    Yunuo Chen*, Tianyi Xie*, Zeshun Zong* (*equal contribution), Xuan Li, Feng Gao, Yin Yang, Ying Nian Wu, Chenfanfu Jiang
    Neural Information Processing Systems (NeurIPS), 2024.
    PDF Code Project Page

  8. VR-GS: A Physical Dynamics-Aware Interactive Gaussian Splatting System in Virtual Reality
    Ying Jiang*, Chang Yu*, Tianyi Xie*, Xuan Li* (*equal contribution), Yutao Feng, Huamin Wang, Minchen Li, Henry Lau, Feng Gao, Yin Yang, Chenfanfu Jiang
    ACM SIGGRAPH, 2024.
    PDF Project Page Video

  9. PhysGaussian: Physics-Integrated 3D Gaussians for Generative Dynamics
    Tianyi Xie*, Zeshun Zong*, Yuxing Qiu*, Xuan Li* (*equal contribution), Yutao Feng, Yin Yang, Chenfanfu Jiang
    Conference on Computer Vision and Pattern Recognition (CVPR), 2024. Highlight
    PDF Code Project Page Video

  10. A Contact Proxy Splitting Method for Lagrangian Solid-Fluid Coupling
    Tianyi Xie, Minchen Li, Yin Yang, Chenfanfu Jiang
    ACM Transactions On Graphics (SIGGRAPH), 2023.
    PDF Video Tech Doc

  11. Multi-Layer Thick Shells
    Yunuo Chen, Tianyi Xie, Cem Yuksel, Danny Kaufman, Yin Yang, Chenfanfu Jiang, Minchen Li
    ACM SIGGRAPH, 2023.
    PDF Video Tech Doc

Experiences

NVIDIA Research, Santa Clara
Research Intern
June, 2025 - Present

Netflix Research, Los Gatos
Research Intern
June, 2024 - Nov, 2024

Bytedance AI Lab, Shanghai
Research Intern
Apr, 2020 - Jul, 2021

Teaching

Teaching Assistant, UCLA
CS174A: Introduction to Computer Graphics, Fall 2024 - Spring 2025
Teaching Assistant, UCLA
CS33: Introduction to Computer Organization, Spring 2024
Teaching Assistant, UCLA
PIC20A: Principles of Java Language with Applications, Fall 2023, Winter 2024

Miscellaneous

I am a big fan of Japanese animes. Shinsekai yori (From the New World) is my GOAT. During my free time, I also enjoy fingerstyle guitar playing. Daniel Padim and Kotaro Oshio are two of my favorite guitarists.


Profile Photo credit to Ying Jiang.
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