Unity 3d 射线检测（获得鼠标点击的坐标[x,y,z]）

using UnityEngine;

using System.Collections;

public class Lu : MonoBehaviour{

public Camera cam;

// We need to actually hit an object

RaycastHit hitt = new RaycastHit();

// Use this for initialization

void Start() {

}

// Update is called once per frame

void Update() {

Ray ray = cam.ScreenPointToRay(Input.mousePosition);

Physics.Raycast(ray, out hitt, 100);

// Debug.DrawLine(cam.transform.position, ray.direction,Color.red);

if (null != hitt.transform) {

print(hitt.point);

//鼠标点击的坐标

}

}

}