Chengzhu He (何成竹)

Type-Free Global Intersection Analysis with Linear Displacement Fields

Chengzhu He, Xudong Feng, Anjun Chen, Dan Song, Shihui Guo, Kui Wu

A type-free untangling framework that resolves self-intersections in cloth and thin-shell simulation without collision history or contour classification. It tests candidate linear displacement directions with conservative VF/EE/FV ray casting, culls spurious hits by adjacency-based clustering, and refines separation directions directly from contour-anchored evidence, consistently outperforming GIA and ICM baselines in challenging scenarios.

Automated Task Scheduling for Cloth and Deformable Body Simulations in Heterogeneous Computing Environments

Chengzhu He, Zhendong Wang, Zhaorui Meng, Junfeng Yao, Shihui Guo, Huamin Wang

An automated task-scheduling framework that accelerates cloth and deformable-body simulations across heterogeneous CPU/GPU systems. It adapts the HEFT algorithm to hybrid devices and introduces an asynchronous Gauss-Seidel method with specialized data synchronization to maximize parallelism on Apple M-series processors.

LibAtsSim

The C++/Metal implementation of our SIGGRAPH 2025 paper, with examples showing the task scheduler and the progress of asynchronous Gauss-Seidel iterations across CPU and GPU units.

LuisaComputeSimulator

A high-performance, cross-platform physics simulator built on LuisaCompute, supporting cloth and rigid-body simulation with penetration-free contact handling, accelerated by CUDA, DirectX 12, Vulkan, Metal, and fallback CPU backends.