1. What is a point cloud
The AR device uses the camera to capture the visual difference points (such as color, texture, gray scale) in the image, and selects points with large differences from them. These points are called feature points, which can be parsed into specific points in machine vision Location information. The massive feature points constitute the point cloud.
Second, display point cloud
1. Open Unity and create a new empty scene, delete the default "Main Camera" in the scene
2. Hierarchy->XR->AR Session Origin Create AR Session Origin component
3.Hierarchy->XR->AR Session Create AR Session component