title: How to create blur effect to all the scene except for one object (focus on that object)?
body: <p>I want to create a blur effect similar to the picture below:
  <a href="https://i.stack.imgur.com/qWfyU.png" rel="noreferrer"><img src="https://i.stack.imgur.com/qWfyU.png" alt="enter image description here"></a></p>
  
  <p>the picture is taken from this site:</p>
  
  <p><a href="https://forum.unity.com/threads/how-to-blur-specific-layers-only.555520/" rel="noreferrer">https://forum.unity.com/threads/how-to-blur-specific-layers-only.555520/</a></p>
  
  <p>I tried the post-processing profile and played around with the depth of field in the post-processing volume but it blurs all the scene.</p>
  
  <p>I came across a <a href="https://www.youtube.com/watch?v=sDG4XR-83X4" rel="noreferrer">YouTube Video</a> that explains how to implement similar results to what I am looking for but things have changed drastically in the settings. For example, at 1:57 (minute and 57 seconds) he clicks on <code>Add Additional Camera Data</code> which I am struggling to find in the latest versions of LWRP.</p>
  
  <p>I am using Unity version 2019.2.9f1</p>
  
  <p>How can I achieve the result in the picture above? (Blurring all the scene except for one object)</p>
  
  <p>Your guidance will be appreciated.</p>
  
  <p><strong>NOTE:</strong> My project is in VR using SteamVR and VRTK</p>