What type of colliders are used in 3D physics within Unity?

In Unity, 3D physics operations utilize 3D colliders, which are specifically designed to work within the three-dimensional environment of a game or simulation. These colliders define the shape and boundaries of 3D objects, allowing the physics engine to calculate interactions such as collisions, triggers, and physical responses.

3D colliders encompass various types, including box colliders, sphere colliders, and mesh colliders, each tailored for different geometric shapes and interaction requirements. By employing 3D colliders, developers ensure that the physics calculations accurately reflect the volume and dimensions of the objects in the game scene.

While two-dimensional colliders are intended for 2D gameplay and physics interactions, they would not be suitable for a 3D context. Similarly, compound colliders, while useful for creating complex shapes from multiple simpler colliders, are a concept within 3D colliders rather than a standalone type. Therefore, referring to 3D colliders directly signifies the appropriate approach for handling such physics in a three-dimensional space, distinguishing them clearly from both 2D colliders and the broader category of compound colliders.