Physics Engine

The Fastest Gravity Algorithm You’ve Never Heard Of (And Why Your Physics Engine Is Stuck in the Stone Age)

📅 August 3, 2026 📂 Tech Industry

The Fast Multipole Method achieves O(N) complexity for N-body gravity simulations, shattering the long-held belief that accurate physics engines must be O(N²). A new zero-dependency open-source library makes this algorithm accessible to game developers and simulation enthusiasts, enabling real-time planetary dynamics with thousands of bodies.

3D Graphics Accuracy Fast Multipole Method N-body Open Source Physics Engine

Your Game Physics Are Wrong. That’s the Point.

📅 August 2, 2026 📂 Tech Industry

Every physics engine faces a trade-off: accuracy vs. performance. Clipping (allowing objects to pass through) is often a deliberate design choice to maintain frame rate and responsiveness. Substepping ensures accuracy but risks lag. The best games cheat physics intentionally. Accuracy is the enemy of fun.

Accuracy Clipping Collision Framerate Game Design Game Development Game Feel Optimization Performance Physics Physics Engine Real-Time Rigid Body Simulation Substepping Trade-off