SDF collision framework pairs caching with importance sampling for real-time thousands-body sims
Michael_Moroz_ · x · 2026-10-09
A new Pacific Graphics 2026 paper in Computer Graphics Forum 45(7) by Chris Giles and Sheldon Andrews introduces a robust collision detection framework for SDF-encoded geometry.
- Combines temporal coherence caching with curvature-guided importance sampling to form sparse, stable contact manifolds even for complex non-convex shapes
- Beats existing baselines in both runtime performance and simulation stability; works with numerical solvers, with derivative-free optimizers adding further gains
- Highly parallelizable and GPU-friendly, scaling to environments with thousands of rigid bodies at real-time frame rates (Colosseum, funnel, and other demo scenes)
- C++ code is open source, plus a live WebAssembly/WebGL2 browser demo exposing every parameter
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