Ray casting is typically used for ray-object intersection tests, not for general collision detection between objects.

A physics engine is responsible for simulating the physical interactions and behaviors of objects in a game world.

Center of mass is a fundamental concept in rigid body dynamics as it represents the point where all the mass of the object is concentrated.

Physics integration is the process of calculating the forces and torques acting on objects and updating their positions and velocities over time.

Impulse-based collision response is a common approach that involves applying an impulse to objects at the moment of collision to conserve momentum.

Constraints are used to maintain specific relationships between objects, such as preventing them from penetrating each other or keeping them connected with a specific distance or angle.

Hinge constraint is a common type of constraint that allows objects to rotate around a fixed axis while preventing them from translating.

Constraint satisfaction is the process of finding a set of positions and velocities for objects that satisfy all the constraints in the simulation.

Particle-based fluid simulation is a common approach that represents fluids as a collection of particles and simulates their interactions and behaviors.

Soft body dynamics is the process of simulating the behavior of soft bodies, such as cloth, muscles, and other deformable objects.

Mass-spring system is a common approach for simulating cloth in game engines, where the cloth is represented as a network of masses connected by springs.

Muscle simulation is the process of simulating the behavior of muscles, including their contraction and relaxation, to generate realistic character animations.

Strand-based simulation is a common approach for simulating the behavior of hair and fur in game engines, where each strand is represented as a series of connected particles.

Particle-based simulation is a common approach for simulating the behavior of smoke and fire in game engines, where the smoke and fire are represented as a collection of particles.

Particle-based simulation is a common approach for simulating the behavior of explosions in game engines, where the explosion is represented as a collection of particles.