Version: Unity 6.3 Beta (6000.3)
Language : English
Terrain and the Terrain Tools package
Built-in 3D physics

Physics

Simulate physics in your Unity Project to ensure that the objects correctly accelerate and respond to collisionsA collision occurs when the physics engine detects that the colliders of two GameObjects make contact or overlap, when at least one has a Rigidbody component and is in motion. More info
See in Glossary
, gravity, and various other forces.

Unity provides different physics engine integrations which you can use according to your Project needs: 3D, 2D, object-oriented, or data-oriented. To learn more, refer to Physics integrations in Unity.

Topic Description
Built-in 3D physics Use this integration of the Nvidia PhysX engine in object-oriented 3D projects.
Physics integrations in Unity An overview of the different physics integrations available in the Unity engine.
Disable and strip the physics integration from your project Disable and strip the physics engine integration from your project to reduce the build size.

Additional resources and examples

Terrain and the Terrain Tools package
Built-in 3D physics