Physics & Force Models

Darksun’s physics stack balances simulation fidelity with interactive performance. This section separates the major model families so you can jump directly to the detail you need.

Looking for coordinate orientations? See Reference Frames before mixing vector spaces.

Contents

• Integration Methods – Numerical integrators, strengths, and selection guidance.
• Gravitational Forces – Primary gravity, harmonics, third-body terms, and SOI transitions.
• Non-Gravitational Forces – Drag, solar radiation pressure, and thrust modelling.
• Celestial Catalogues – Ephemerides, body archetypes, and extending the registry.
• Maneuver Modelling – Maneuver nodes, burn execution, and porkchop planning.
• Collision & Shadow Detection – Impact refinement and eclipse tracking.
• Validation & Tuning – Energy checks, debug tooling, and force-model configuration.

Each page focuses on the services, formulas, and extension points relevant to that domain. Scan the quick references, then dive into the implementation notes to customise Darksun for your mission.