# Environmental Analysis Analyze the video from the cameras and the accompanying data, and use ray-casting and depth-map information to determine the location of items. ## Topics ### Video Frame Analysis [Displaying a point cloud using scene depth](/documentation/ARKit/displaying-a-point-cloud-using-scene-depth) Present a visualization of the physical environment by placing points based a scene’s depth data. [Creating a fog effect using scene depth](/documentation/ARKit/creating-a-fog-effect-using-scene-depth) Apply virtual fog to the physical environment. [`ARFrame`](/documentation/ARKit/ARFrame) A video image captured as part of a session with position-tracking information. [`ARPointCloud`](/documentation/ARKit/ARPointCloud) A collection of points in the world coordinate space of the AR session. [`ARDepthData`](/documentation/ARKit/ARDepthData) An object that describes the distance to regions of the real world from the plane of the camera. ### Raycasting [Placing objects and handling 3D interaction](/documentation/ARKit/placing-objects-and-handling-3d-interaction) Place virtual content at tracked, real-world locations, and enable the user to interact with virtual content by using gestures. [`ARRaycastQuery`](/documentation/ARKit/ARRaycastQuery) A mathematical ray you use to find 3D positions on real-world surfaces. [`ARTrackedRaycast`](/documentation/ARKit/ARTrackedRaycast) A raycast query that ARKit repeats in succession to give you refined results over time. [`ARRaycastResult`](/documentation/ARKit/ARRaycastResult) Information about a real-world surface found by examining a point on the screen. ### Hit-Testing [`ARHitTestResult`](/documentation/ARKit/ARHitTestResult) Information about a real-world surface found by examining a point on the screen. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)