高通AR的cloud研究

ti

首先，你需要注册free Cloud Recognition developer账号，然后在Targe Manager创建一个Cloud DataBase
https://developer.vuforia.com/targetmanager

完成后，将会给你Access Keys，在你的AR程序中用那个Client Access Keys去请求数据库，
Server Access keys用来准备和管理你的云端targets的。

你可以往Cloud DataBase添加targets,使用Target Manager--选择Add Target 并且上传图片和相应的数据文件到数据库。

当你创建完成Cloud DataBase 并且targets设置完成，你就可以将Client Access keys填入到CloudRecoBehaviour这个组建的参数里了。

你可以从Qualcomm Augmented Reality/Prefabs folder中找到CloudRecognition 这个prefab，把他拽到hierarchy面板。

然后，加入一个CloudRecoEventHandler.cs到CloudRecognition这个物体上（下面会介绍）。这将能让你捕获图片扫描结果，结果将以TargetFinder.TargetSearchResult的结构返回给你。
public struct TargetSearchResult
{
      // name of the target
      public string TargetName;
      // system-wide unique id of the target.
      public string UniqueTargetId;
      /// width of the target (in 3D scene units)
      public float TargetSize;
      // metadata associated with this target
      public string MetaData;
      //tracking rating for this target
      /**
      *  The tracking rating represents a 5-star rating describing the
      *  suitability of this target for tracking on a scale from 0 to 5. A low
      *  tracking rating may result in poor tracking or unstable augmentation.
      */
      public byte TrackingRating;
      // pointer to native search result
      public IntPtr TargetSearchResultPtr;

}
要显示返回的target，你需要用一个Image Target Template,它其实就是一个ImageTarget实例，在你的场景中你将他当成虚拟物体模板。你需要做的是把这个ImageTargets拖到CloudRecoEventHandler组件上的Image Target
Template field这个参数上。

另外，你要做自己的设计的话，也可以用下面这个精简版的SimpleCloudRecoEventHandler.cs. 你需要获得的数据可以在OnNewSearchResult（）方法中调用。
using System;
using UnityEngine;

///

/// This MonoBehaviour implements the Cloud Reco Event handling for this sample.
/// It registers itself at the CloudRecoBehaviour and is notified of new search results.
///

public class SimpleCloudRecoEventHandler : MonoBehaviour, ICloudRecoEventHandler
{
#region PRIVATE_MEMBER_VARIABLES

// CloudRecoBehaviour reference to avoid lookups
private CloudRecoBehaviour mCloudRecoBehaviour;
// ImageTracker reference to avoid lookups
private ImageTracker mImageTracker;

#endregion // PRIVATE_MEMBER_VARIABLES

#region EXPOSED_PUBLIC_VARIABLES

///

/// can be set in the Unity inspector to reference a ImageTargetBehaviour that is used for augmentations of new cloud reco results.
///

public ImageTargetBehaviour ImageTargetTemplate;

#endregion

#region ICloudRecoEventHandler_IMPLEMENTATION

///

/// called when TargetFinder has been initialized successfully
///

public void OnInitialized()
{
// get a reference to the Image Tracker, remember it
mImageTracker = (ImageTracker)TrackerManager.Instance.GetTracker(Tracker.Type.IMAGE_TRACKER);
}

///

/// initialization errors
///

public void OnInitError(TargetFinder.InitState initError)
{
}

///

/// update errors
///

public void OnUpdateError(TargetFinder.UpdateState updateError)
{
}

///

/// updates to the scanning state
///

public void OnStateChanged(bool scanning)
{
}

///

/// Handles new search results
///

///
public void OnNewSearchResult(TargetFinder.TargetSearchResult targetSearchResult)
{
      // duplicate the referenced image target
      GameObject newImageTarget = Instantiate(ImageTargetTemplate.gameObject) as GameObject;

      // enable the new result with the same ImageTargetBehaviour:
      ImageTargetBehaviour imageTargetBehaviour = mImageTracker.TargetFinder.EnableTracking(targetSearchResult, newImageTarget);

      if (imageTargetBehaviour != null)
      {
         // stop the target finder
         mCloudRecoBehaviour.CloudRecoEnabled = false;
      }
}

#endregion // ICloudRecoEventHandler_IMPLEMENTATION

#region UNTIY_MONOBEHAVIOUR_METHODS

///

/// register for events at the CloudRecoBehaviour
///

void Start()
{
      // register this event handler at the cloud reco behaviour
      CloudRecoBehaviour cloudRecoBehaviour = GetComponent();
      if (cloudRecoBehaviour)
      {
         cloudRecoBehaviour.RegisterEventHandler(this);
      }

      // remember cloudRecoBehaviour for later
      mCloudRecoBehaviour = cloudRecoBehaviour;
}

#endregion // UNTIY_MONOBEHAVIOUR_METHODS

}
这个程序将会自动调用扫描功能，你可以控制扫描状态，通过设置
CloudRecoBehaviour.CloudRecoEnabled = true || false

你不需要用ContentManager物体。那是例子中用来从服务器返回JSON数据用的。

搜索历史

高通AR的cloud研究

相关推荐

精选推荐

最新话题

热门话题

创建小组步骤

站长推荐 /6