Up to this point. we haven't talked about how the Unity engine actually works, or how it manages to create lifelike interactions and movement in a virtual space. We'll spend the rest of this chapter on the basics of Unity's physics system:
The two main components that power Unity's NVIDIA PhysX engine are as follows:
- Rigidbody components, which allow GameObjects to be affected by gravity and add properties like Mass and Drag. Rigidbody components can also be affected by applied force, generating a more realistic movement:
- Collider components, which determine how and when GameObjects enter and exit each other's physical space or simply collide and bounce away. While there should only be one Rigidbody attached to a given GameObject, there can be several Collider components. This is commonly referred to as a compound...
