嗨，我想更新我想在设备上显示或增强的内容。最初我选择一个按钮，它会显示一个模型。再次选择另一个按钮时，它必须带另一个模型但不更新。当我单击第二个按钮仅显示第一个模型。模型未更改。
using System;
using System.Collections.Generic;
using UnityEngine.EventSystems;
namespace UnityEngine.XR.iOS
{
public class UnityARHitTestExample : MonoBehaviour
{
public Transform m_HitTransform;
public float maxRayDistance = 30.0f;
public LayerMask collisionLayer = 1 << 10; //ARKitPlane layer
public List<GameObject> Instaobj = new List<GameObject>();
public Transform ForSelect;
int Select;
bool HitTestWithResultType (ARPoint point, ARHitTestResultType resultTypes)
{
List<ARHitTestResult> hitResults = UnityARSessionNativeInterface.GetARSessionNativeInterface ().HitTest (point, resultTypes);
if (hitResults.Count > 0) {
foreach (var hitResult in hitResults) {
Debug.Log ("Got hit!");
if (Select == 0)
{
Instantiate(Instaobj[0], ForSelect);
Instaobj[1].SetActive(false);
Instaobj[2].SetActive(false);
}
if (Select == 1)
{
Instantiate(Instaobj[1], ForSelect);
Instaobj[0].SetActive(false);
Instaobj[2].SetActive(false);
}
if (Select == 2)
{
Instantiate(Instaobj[2], ForSelect);
Instaobj[0].SetActive(false);
Instaobj[1].SetActive(false);
}
m_HitTransform.position = UnityARMatrixOps.GetPosition (hitResult.worldTransform);
m_HitTransform.rotation = UnityARMatrixOps.GetRotation (hitResult.worldTransform);
Debug.Log (string.Format ("x:{0:0.######} y:{1:0.######} z:{2:0.######}", m_HitTransform.position.x, m_HitTransform.position.y, m_HitTransform.position.z));
return true;
}
}
return false;
}
// Update is called once per frame
void Update () {
#if UNITY_EDITOR //we will only use this script on the editor side, though there is nothing that would prevent it from working on device
if (Input.GetMouseButtonDown (0)) {
Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
RaycastHit hit;
//we'll try to hit one of the plane collider gameobjects that were generated by the plugin
//effectively similar to calling HitTest with ARHitTestResultType.ARHitTestResultTypeExistingPlaneUsingExtent
if (Physics.Raycast (ray, out hit, maxRayDistance, collisionLayer)) {
//we're going to get the position from the contact point
m_HitTransform.position = hit.point;
Debug.Log (string.Format ("x:{0:0.######} y:{1:0.######} z:{2:0.######}", m_HitTransform.position.x, m_HitTransform.position.y, m_HitTransform.position.z));
//and the rotation from the transform of the plane collider
m_HitTransform.rotation = hit.transform.rotation;
}
}
#else
if (Input.touchCount > 0 && m_HitTransform != null )
{
var touch = Input.GetTouch(0);
if ((touch.phase == TouchPhase.Began || touch.phase == TouchPhase.Moved) && !EventSystem.current.IsPointerOverGameObject(touch.fingerId))
{
var screenPosition = Camera.main.ScreenToViewportPoint(touch.position);
ARPoint point = new ARPoint {
x = screenPosition.x,
y = screenPosition.y
};
// prioritize reults types
ARHitTestResultType[] resultTypes = {
//ARHitTestResultType.ARHitTestResultTypeExistingPlaneUsingGeometry,
ARHitTestResultType.ARHitTestResultTypeExistingPlaneUsingExtent,
// if you want to use infinite planes use this:
//ARHitTestResultType.ARHitTestResultTypeExistingPlane,
//ARHitTestResultType.ARHitTestResultTypeEstimatedHorizontalPlane,
//ARHitTestResultType.ARHitTestResultTypeEstimatedVerticalPlane,
//ARHitTestResultType.ARHitTestResultTypeFeaturePoint
};
foreach (ARHitTestResultType resultType in resultTypes)
{
if (HitTestWithResultType (point, resultType))
{
return;
}
}
}
}
#endif
}
public void SelectFunction(int choice)
{
Select = choice;
}
}
}
在SelectFuntion（）方法中，我传递按钮单击值。当我单击第一个按钮时，它将传递0，第二个按钮将传递1，依此类推。仅对3个模型进行测试，但必须对许多模型进行测试。
我认为问题在于我使实例化对象为假。