Version: 2017.2
public bool Raycast (Ray ray, out RaycastHit hitInfo, float maxDistance);


ray The starting point and direction of the ray.
hitInfo If true is returned, hitInfo will contain more information about where the collider was hit (See Also: RaycastHit).
maxDistance The max length of the ray.


bool True when the ray intersects any collider, otherwise false.


Casts a Ray that ignores all Colliders except this one.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { public Collider coll; void Start() { coll = GetComponent<Collider>(); } void Update() { if (Input.GetMouseButtonDown(0)) { Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition); RaycastHit hit; if (coll.Raycast(ray, out hit, 100.0F)) transform.position = ray.GetPoint(100.0F); } } }