GameObject.layer 层

var layer : int

Description描述

The layer the game object is in. A layer is in the range [0...32]
Layers can be used for selective rendering from cameras or ignoring raycasts.
游戏物体所在的层，一个层的范围是在[0...32]之间。
层可以用于摄像机的选择性渲染或者忽略光线投射。

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    public void Awake() {
    	gameObject.layer = 2;
    }
}

//把游戏物体放到忽略光线投射层
gameObject.layer = 2;