I am a Research Scientist at the State Key Laboratory of CAD & CG, Zhejiang University. My research lies at the intersection of computer graphics, physics-based simulation, embodied AI, and high-performance computing. I develop scalable algorithms and systems for simulating complex physical phenomena, with a focus on contact-rich dynamics, deformable-body simulation, GPU-parallel computing, and learning-enhanced simulation.

Prior to joining Zhejiang University, I was a postdoctoral researcher at the University of Utah and Clemson University. I received my Ph.D. degree in Computer Science and Technology and M.S. degree in Software Engineering from Xiamen University. From 2017 to 2019, I was a visiting scholar at the University of New Mexico.

Publications

SIGGRAPH 2026

• Distributed Affine Body Dynamics with Adaptive Consensus Affine Body DynamicsDistributed SimulationConsensus Jiafeng Liu, Wenhui Zhou, Xinming Pei, Yifan Peng, Huamin Wang, Yin Yang, Lei Lan, Weiwei Xu SIGGRAPH 2026 Conference Papers, 2026.

SIGGRAPH 2026

• JGS2-GQ: Training-free 2nd Jacobi with Gaussian Quadrature Physical SimulationGaussian QuadratureJacobi Solver Dewen Guo, Zixuan Lu, Zhiyong He, Yuqi Meng, Bohan Wang, Lei Lan, Weiwei Xu, Chenfanfu Jiang, Yin Yang ACM Transactions on Graphics, 2026 (SIGGRAPH).

AAAI 2026 Oral

• ElastoGen: 4D Generative Elastodynamics Generative ModelElastodynamics4D Simulation Yintong Shang^*, Yutao Feng^*, Xiang Feng^*, Lei Lan, Shandian Zhe, Tianjia Shao, Hongzhi Wu, Kun Zhou, Chenfanfu Jiang, Yin Yang AAAI Conference on Artificial Intelligence, 2026. Oral.

SIGGRAPH 2025

• JGS2: Near Second-order Converging Jacobi/Gauss-Seidel for GPU Elastodynamics Physical SimulationGPUElastodynamics Lei Lan, Zixuan Lu, Chun Yuan, Weiwei Xu, Hao Su, Huamin Wang, Chenfanfu Jiang, Yin Yang ACM Transactions on Graphics, 2025, Volume 44, Issue 4, Article No. 44.

SIGGRAPH 2025

• 3DGS2: Near Second-order Converging 3D Gaussian Splatting 3D Gaussian SplattingSecond-orderOptimization Lei Lan, Tianjia Shao, Zixuan Lu, Yu Zhang, Chenfanfu Jiang, Yin Yang SIGGRAPH 2025 Conference Papers, 2025, Article No. 99.

SIGGRAPH 2025

• High-performance CPU Cloth Simulation Using Domain-decomposed Projective Dynamics Cloth SimulationCPUProjective Dynamics Zixuan Lu^*, Ziheng Liu^*, Lei Lan, Huamin Wang, Yuko Ishiwaka, Chenfanfu Jiang, Kui Wu, Yin Yang ACM Transactions on Graphics, 2025, Volume 44, Issue 4, Article No. 51.

SIGGRAPH Asia 2024

• Efficient GPU Cloth Simulation with Non-distance Barriers and Subspace Reuse Cloth SimulationCollision on GPUSubspace Lei Lan, Zixuan Lu, Jingyi Long, Chun Yuan, Xuan Li, Xiaowei He, Huamin Wang, Chenfanfu Jiang, Yin Yang ACM Transactions on Graphics, 2024, Volume 43, Issue 6, Article No. 226.

SIGGRAPH Asia 2024

• Volumetric Homogenization for Knitwear Simulation Physical SimulationHomogenizationYarn-level Simulation Chun Yuan^*, Haoyang Shi^*, Lei Lan, Yuxing Qiu, Cem Yuksel, Huamin Wang, Chenfanfu Jiang, Kui Wu, Yin Yang ACM Transactions on Graphics, 2024, Volume 43, Issue 6, Article No. 207.

SIGGRAPH Asia 2024

• XPBI: Position-Based Dynamics with Smoothing Kernels Handles Continuum Inelasticity PBDInelasticity Simulation Chang Yu^*, Xuan Li^*, Lei Lan, Yin Yang, Chenfanfu Jiang SIGGRAPH Asia 2024 Conference Papers, 2024, Article No. 65.

SIGGRAPH Asia 2023

• Subspace-Preconditioned GPU Projective Dynamics with Contact for Cloth Simulation Physical SimulationSecond-orderHyperelasticity Xuan Li, Yu Fang, Lei Lan, Huamin Wang, Yin Yang, Minchen Li, Chenfanfu Jiang SIGGRAPH Asia Conference Proceedings, 2023, Article No. 1.

SIGGRAPH 2023

• Second-order Stencil Descent for Interior-point Hyperelasticity Physical SimulationSecond-orderHyperelasticity Lei Lan, Minchen Li, Chenfanfu Jiang, Huamin Wang, Yin Yang ACM Transactions on Graphics, 2023, Volume 42, Issue 4, Article No. 108.

SIGGRAPH 2022

• Penetration-free Projective Dynamics on the GPU Physical SimulationGPUCCD Lei Lan, Guanqun Ma, Yin Yang, Changxi Zheng, Minchen Li, Chenfanfu Jiang ACM Transactions on Graphics, 2022, Volume 41, Issue 4, Article No. 69.

SIGGRAPH 2022

• Affine Body Dynamics: Fast, Stable, and Intersection-free Simulation of Stiff Materials Rigid Body SimulationIPC Lei Lan, Danny Kaufman, Minchen Li, Chenfanfu Jiang, Yin Yang ACM Transactions on Graphics, 2022, Volume 41, Issue 4, Article No. 67.

SIGGRAPH 2022

• A Unified Newton Barrier Method for Multibody Dynamics Multibody SimulationIPC Yunuo Chen, Minchen Li, Lei Lan, Hao Su, Yin Yang, Chenfanfu Jiang ACM Transactions on Graphics, 2022, Volume 41, Issue 4, Article No. 66.

CIS 2022

• Continuous Collision Detection with Medial Axis Transform for Rigid Body Simulation Medial Axis TransformCollision Detection Shibo Song, Lei Lan, Junfeng Yao, Xiaohu Guo Communications in Information and Systems, 2022, Vol. 22, No. 1, pp. 53-78.

SIGGRAPH 2021

• Medial IPC: Accelerated Incremental Potential Contact with Medial Elastics Medial AxisCCD Lei Lan^*, Yang Yin^*, Danny Kaufman, Junfeng Yao, Minchen Li, Chenfanfu Jiang ACM Transactions on Graphics, 2021, Volume 40, Issue 4, Article No. 158.

SIGGRAPH 2021

• High-order Differentiable Autoencoder for Nonlinear Model Reduction Nonlinear Reduced SimulationDeep Learning Siyuan Shen^*, Yang Yin^*, Tianjia Shao, He Wang, Chenfanfu Jiang, Lei Lan, Kun Zhou ACM Transactions on Graphics, 2021, Volume 40, Issue 4, Article No. 68.

TOG 2020

• Medial Elastics: Efficient and Collision-ready Deformation via Medial Axis Transform Medial Axis TransformCollision Detection Lei Lan, Ran Luo, Marco Fratarcangeli, Weiwei Xu, Huamin Wang, Xiaohu Guo, Junfeng Yao, Yin Yang ACM Transactions on Graphics, 2020, Volume 39, Issue 3, Article No. 20.

TVC 2017

• Medial-Axis-Driven Shape Deformation with Volume Preservation Medial Axis TransformShape Editor Lei Lan, Junfeng Yao, Ping Huang, Xiaohu Guo The Visual Computer (CGI 2017 Special Issue), Vol. 33, Issue 6-8, pp. 789-800, 2017.