将上篇博客中提到的物体保存为预制体后，回到unity的界面中，新建一个空物体，命名为Plane Generator，用于生成检测平面的网格。 然后我们为其挂载一个脚本，将其命名为DetectedPlaneGenerator 脚本为：
namespace GoogleARCore.Examples.Common { using System.Collections.Generic; using GoogleARCore; using UnityEngine; /// <summary> /// Manages the visualization of detected planes in the scene. /// </summary> public class DetectedPlaneGenerator : MonoBehaviour { /// <summary> /// A prefab for tracking and visualizing detected planes. /// </summary> public GameObject DetectedPlanePrefab; /// <summary> /// A list to hold new planes ARCore began tracking in the current frame. This object is /// used across the application to avoid per-frame allocations. /// </summary> private List<DetectedPlane> m_NewPlanes = new List<DetectedPlane>(); /// <summary> /// The Unity Update method. /// </summary> public void Update() { // Check that motion tracking is tracking. if (Session.Status != SessionStatus.Tracking) { return; } // Iterate over planes found in this frame and instantiate corresponding GameObjects to // visualize them. Session.GetTrackables<DetectedPlane>(m_NewPlanes, TrackableQueryFilter.New); for (int i = 0; i < m_NewPlanes.Count; i++) { // Instantiate a plane visualization prefab and set it to track the new plane. The // transform is set to the origin with an identity rotation since the mesh for our // prefab is updated in Unity World coordinates. GameObject planeObject = Instantiate(DetectedPlanePrefab, Vector3.zero, Quaternion.identity, transform); planeObject.GetComponent<DetectedPlaneVisualizer>().Initialize(m_NewPlanes[i]); } } } }并在Unity界面中将我们保存好的预制体拖动到相应的位置上，平面检测的工作就大功告成了
