Projects
Here are my personal projects focused on Graphics Engineering and Physics Simulation. I enjoy exploring various graphics techniques and physics simulations using low-level APIs (DirectX 12, Vulkan).
🧵 XPBD Cloth Simulation (Vulkan)
Role: Solo Developer Tech: C++, Vulkan, GLSL, Compute Shader Period: 2025.10 ~ 2025.12
💡 Project Overview
“PhysixStudio” is a GPU-based cloth simulation engine built from scratch using Vulkan. It implements the XPBD (Extended Position Based Dynamics) algorithm to simulate realistic cloth behavior with high stiffness stability.
🔧 Key Features
- GPU-Driven Hybrid Solver: Implemented a Jacobi-style accumulation scheme using
InterlockedAdd(AtomicAdd) to maximize GPU parallelism, while retaining Gauss-Seidel properties for specific constraints. - Robust Stability Control: Solved the “Jittering Cloth” instability (Zero-Energy Modes) by implementing Dot-product based Shear Constraints and Small-steps XPBD to handle high stiffness without exploding.
- XPBD Implementation: Overcame the stiffness limitations of traditional PBD by introducing compliance (inverse stiffness), allowing for physically plausible material behavior independent of iteration count.
- Explicit Synchronization: Manually managed Vulkan Compute-Graphics Queue barriers and memory barriers to ensure correct execution order between simulation steps and rendering.