How does the iPad Pro's LiDAR scanner perform in low-light conditions

General Capabilities of LiDAR

LiDAR, or Light Detection and Ranging, uses laser technology to measure distances and create detailed 3D models of environments. It operates at the photon level, allowing it to function both indoors and outdoors, and it can measure distances up to 5 meters away[2][5]. This technology is beneficial for tasks such as spatial mapping, object detection, and AR experiences.

Performance in Low-Light Conditions

While LiDAR does not rely on visible light to function, its performance in low-light conditions is not significantly improved compared to other sensors. In tests, the LiDAR scanner on the iPad Pro did not notably enhance stability or reduce issues like floating and flickering in AR scenes under low-light conditions[7]. However, iOS devices, including the iPad Pro, generally perform better in low-light environments compared to some Android devices, as they can continue to track surroundings even when there are vertical surfaces and some light available[4].

Applications and Limitations

Despite its limitations in low-light conditions, the LiDAR scanner is highly effective for tasks like 3D scanning and AR applications. It provides rapid and accurate depth data, which is crucial for creating immersive AR experiences and improving camera functionalities such as autofocus and portrait mode photography[1][9]. For 3D scanning, the LiDAR is decent for room-scale scenes and faster than photogrammetry, though it may not be perfect for all applications[6].

In summary, while the iPad Pro's LiDAR scanner offers significant benefits for depth sensing and AR applications, its performance in low-light conditions does not address all the challenges associated with AR stability and accuracy. However, it remains a powerful tool for enhancing various functionalities on the device.