unity開發(fā)arkit過程中有個bug，每次在ar場景中進(jìn)入到其他場景然后回到有ar場景中的時候ar場景會變混亂，我初始化了ar場景里面的東西，但是之前掃描的平面還在，并且會到處跑動，經(jīng)過多處排查，在Assets/Plugins/ios/UnityARkit/UnityARCamerManager.cs這個文件中有這樣一段斷碼

void Start(){

m_session = UnityARSessionNativeInterface.GetARSessionNativeInterface();

#if !UNITY_EDITOR

Application.targetFrameRate = 60;

ARKitWorldTackingSessionConfiguration config = new ARKitWorldTackingSessionConfiguration();

config.planeDetection = UnityARPlaneDetection.Horizontal;

config.alignment = UnityARAlignment.UnityARAlignmentGravity;

config.getPointCloudData = true;

config.enableLightEstimation = true;

m_session.RunWithConfig(config);

if(m_camera == null){

m_camera = Camera.main;

}

#else

........

#endif

}

重點(diǎn)可以看到的是雖然每次初始化arkit的congfig，但是并沒有將之前掃描的點(diǎn)移除掉，這樣我改成

UnityARSessionRunOption runOptions =  UnityARSessionRunOption.ARSessionRunOptionRemoveExistingAnchors | UnityARSessionRunOption.ARSessionRunOptionResetTracking;

ARKitWorldTackingSessionConfiguration sessionConfig = new  ARKitWorldTackingSessionConfiguration(UnityARAlignment.UnityARAlignmentGravity,UnityARPlaneDetection.Horizontal);

UnityARSessionNativeInterface.GetARSessionNativeInterface().RunWithConfigAndOptions(sessionConfig,runOptions);

進(jìn)入其他的場景回來再掃描，之前的東西沒有了，并且可以再次掃描一個平臺