vuforia unity實現相機自動聚焦

先上代碼，寫一個C#腳本：

using UnityEngine;
using System.Collections;
namespace Vuforia
{
    public class focus : MonoBehaviour
    {

        // Use this for initialization
        void Start()
        {
            CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_CONTINUOUSAUTO);
        }

        void Update()
        {
            CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_CONTINUOUSAUTO);
        }
    }
}	

然後把這個腳本在unity中拖到ARCamera中就行。