Collision detection
How PhysX detects collisions in Unity, and how to select the right algorithm depending on your collider configuration for optimal performance.
Read time 1 minuteLast updated 19 days ago
Collision detection is the physics engine’s process for detecting when a physics body (Rigidbody or ArticulationBody) comes into contact with a collider. Unity provides different collision detection algorithms for different situations, so that you can choose the most efficient approach for each individual physics body (Rigidbody or Articulation Body) in your scene.
Topic | Description |
|---|---|
| Choose a collision detection mode | Choose the right collision detection mode for each collider in your project. |
| Layer-based collision detection | Use layers to define which GameObjects can collide with each other. |
| Discrete collision detection | Overview of the high-efficiency discrete collision detection mode available in Unity. |
| Continuous collision detection (CCD) | Overview of the high-accuracy continuous collision detection (CCD) modes available in Unity. |