Physics.SphereCast

파라미터

반환

bool True when the sphere sweep intersects any collider, otherwise false.

설명

Casts a sphere along a ray and returns detailed information on what was hit.

This is useful when a Raycast does not give enough precision, because you want to find out if an object of a specific size, such as a character, will be able to move somewhere without colliding with anything on the way. Think of the sphere cast like a thick raycast. In this case the ray is specified by a start vector and a direction.

Notes: SphereCast will not detect colliders for which the sphere overlaps the collider. Passing a zero radius results in undefined output and doesn't always behave the same as Physics.Raycast.

Additional resources: Physics.SphereCastAll, Physics.CapsuleCast, Physics.Raycast, Rigidbody.SweepTest.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    CharacterController charCtrl;

    void Start()
    {
        charCtrl = GetComponent<CharacterController>();
    }

    void Update()
    {
        RaycastHit hit;

        Vector3 p1 = transform.position + charCtrl.center;
        float distanceToObstacle = 0;

        // Cast a sphere wrapping character controller 10 meters forward
        // to see if it is about to hit anything.
        if (Physics.SphereCast(p1, charCtrl.height / 2, transform.forward, out hit, 10))
        {
            distanceToObstacle = hit.distance;
        }
    }
}

파라미터

반환

bool True when the sphere sweep intersects any collider, otherwise false.

설명

Casts a sphere along a ray and returns detailed information on what was hit.

This is useful when a Raycast does not give enough precision, because you want to find out if an object of a specific size, such as a character, will be able to move somewhere without colliding with anything on the way. Think of the sphere cast like a thick raycast.

Additional resources: Physics.SphereCastAll, Physics.CapsuleCast, Physics.Raycast, Rigidbody.SweepTest.

파라미터

설명