Question by 
               syalanurag1991 · Nov 16, 2017 at 10:58 AM · 
                cameravuforiaaugmented-reality  
              
 
              Building an AR App, everything is Blurry: Using Unity and Vuforia
Hey I am having the same problem.
From the documentation given here: https://library.vuforia.com/articles/Solution/Working-with-the-Camera#How-To-Use-the-Camera-Projection-Matrix
I created a script called Focus.cs and attached it to the "ARCamera" The script looks like this:
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 public class Focus : MonoBehaviour {
 // Use this for initialization
 void Start () {
   var vuforia = VuforiaARController.Instance;
   vuforia.RegisterVuforiaStartedCallback(OnVuforiaStarted);
   vuforia.RegisterOnPauseCallback(OnPaused);
 }
 private void OnVuforiaStarted(){
 CameraDevice.Instance.SetFocusMode(
 CameraDevice.FocusMode.FOCUS_MODE_CONTINUOUSAUTO);
 }
   private void OnPaused(bool paused){
   if (!paused) // resumed
   {
      // Set again autofocus mode when app is resumed
      CameraDevice.Instance.SetFocusMode(
      CameraDevice.FocusMode.FOCUS_MODE_CONTINUOUSAUTO);
   }
   }
   }
 
               Now unity is giving an error like this: error CS0103: The name `VuforiaARController' does not exist in the current context
What should I do?
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