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Mai Huy Hiếu

PROFILE

Mai Huy Hiếu

During their work on the jrouwe/JoltPhysics repository, Mandatory focused on enhancing both stability and performance in the physics simulation engine. They addressed a heap-buffer-overflow in the ContactConstraintManager by refining constraint initialization and memory allocation, which improved startup reliability and reduced missed contacts in early simulation frames. In a subsequent sprint, they implemented SIMD-based optimizations for core math primitives, accelerating DVec3 and quaternion operations using C++ and platform-specific SIMD instructions for both x86 and ARM architectures. Their contributions included robust unit testing for edge cases, resulting in more deterministic simulations and higher throughput across diverse hardware, demonstrating strong skills in C++ and performance optimization.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

3Total
Bugs
1
Commits
3
Features
1
Lines of code
154
Activity Months2

Work History

April 2026

2 Commits • 1 Features

Apr 1, 2026

April 2026 performance optimization sprint for JoltPhysics focused on SIMD acceleration for math primitives, with cross-platform enhancements (x86 SIMD and NEON for ARM), strengthened unit tests, and targeted memory-path improvements. These changes improve core physics math throughput on supported hardware, enabling higher frame rates and more accurate simulations while ensuring edge-case robustness across platforms.

February 2026

1 Commits

Feb 1, 2026

February 2026: Stability and memory-safety improvements in ContactConstraintManager for JoltPhysics during PhysicsSystem initialization. Addressed a heap-buffer-overflow and hash-map storage gaps, leading to more reliable startup and fewer missed contacts in early simulation frames.

Activity

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Quality Metrics

Correctness100.0%
Maintainability80.0%
Architecture93.4%
Performance93.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++

Technical Skills

C++C++ programmingSIMD programminggame developmentmathematicsperformance optimizationphysics simulationunit testing

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

jrouwe/JoltPhysics

Feb 2026 Apr 2026
2 Months active

Languages Used

C++

Technical Skills

C++ programminggame developmentphysics simulationC++SIMD programmingmathematics