Collisions and interactions in the LowLevelPhysics2D API

Enable and detect collisions between 2D physics objects, and cast rays to check for intersections.

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Last updated 17 days ago

Combine or connect shapes, and enable and detect contact between physics objects using the

LowLevelPhysics2D

API.

Note

This documentation is about writing C# scripts using the

LowLevelPhysics2D

API. To use 2D physics in the Unity Editor using components like the Rigidbody 2D component, refer to 2D physics instead.

Topic	Description
Introduction to collision in the LowLevelPhysics2D API	Learn about collisions between 2D physics objects, including collision types, layers, and layer masks.
Configure collisions between objects	Change which objects collide with which using layers and masks, and enable using 64 layers instead of 32.
Detect collisions between objects	To detect when collisions occur and respond to them, use collision callback methods or event methods.
Check LowLevelPhysics2D API intersections	To check whether 2D physics objects overlap or will collide, also known as intersections, use query methods.

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