'What is the real benefit of using Raycast in ARKit and RealityKit?

What is a ray-casting in ARKit and RealityKit for?

And when I need to use a makeRaycastQuery instance method:

func makeRaycastQuery(from point: CGPoint, 
                 allowing target: ARRaycastQuery.Target, 
                       alignment: ARRaycastQuery.TargetAlignment) -> ARRaycastQuery?

Any help appreciated.

swiftswiftuiaugmented-realityarkitrealitykithtmlselenium


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