Webphysics Avbd Engine

This is a WebGPU physics engine implementing the AVBD (Augmented Vertex Block Descent) solver from a 2025 SIGGRAPH paper. It runs rigid body and soft body physics entirely on the GPU using compute shaders, with LBVH broad phase collision detection and graph coloring for parallel solves. Chrome only, experimental. You'd use this if you're building browser based physics sims and want GPU acceleration without WebAssembly or porting existing engines. The implementation is pretty complete with joints, springs, warm starting, and body sleeping, but expect to tune substeps and iterations heavily for stability. Good reference if you're exploring modern GPU physics techniques or need something lighter than full Bullet/PhysX ports.