Version: 2022.3
Language : English
Example scripts for collider events
Choose a collision detection mode

Collision detection

Collision detection is the physics engineA system that simulates aspects of physical systems so that objects can accelerate correctly and be affected by collisions, gravity and other forces. More info
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’s process for detecting when a physics body (Rigidbody or ArticulationBody) comes into contact with a colliderAn invisible shape that is used to handle physical collisions for an object. A collider doesn’t need to be exactly the same shape as the object’s mesh - a rough approximation is often more efficient and indistinguishable in gameplay. More info
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. Unity provides different collisionA 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
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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 sceneA Scene contains the environments and menus of your game. Think of each unique Scene file as a unique level. In each Scene, you place your environments, obstacles, and decorations, essentially designing and building your game in pieces. More info
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Topic Description
Choose a collision detection mode Choose the right collision detectionAn automatic process performed by Unity which determines whether a moving GameObject with a Rigidbody and collider component has come into contact with any other colliders. More info
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mode for each collider in your project.
Discrete collision detectionA collision detection method that calculates and resolves collisions based on the pose of objects at the end of each physics simulation step. More info
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Overview of the high-efficiency discrete collision detection mode available in Unity.
Continuous collision detection (CCD) Overview of the high-accuracy continuous collision detectionA collision detection method that calculates and resolves collisions over the entire physics simulation step. This can prevent fast-moving objects from tunnelling through walls during a simulation step. More info
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(CCD) modes available in Unity.
Example scripts for collider events
Choose a collision detection mode
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