title: What is the real benefit of using Raycast in ARKit and RealityKit?
body: <p><strong>What is a ray-casting in ARKit and RealityKit for</strong>?</p>
  <p>And when I need to use a <a href="https://developer.apple.com/documentation/realitykit/arview/3255315-makeraycastquery" rel="nofollow noreferrer">makeRaycastQuery</a> instance method:</p>
  <pre><code>func makeRaycastQuery(from point: CGPoint, 
                   allowing target: ARRaycastQuery.Target, 
                         alignment: ARRaycastQuery.TargetAlignment) -&gt; ARRaycastQuery?
  </code></pre>
  <p>Any help appreciated.</p>