Earlier, we introduced spatial maps and dynamic spatial location via SLAM. SDKs that support spatial maps may implement their own solutions and/or expose access to a device's own support. For example, the HoloLens SDK Unity package supports its native spatial maps, of course. Vuforia's spatial maps (called Smart Terrain) does not use depth sensing like HoloLens; rather, it uses visible light camera to construct the environment mesh using photogrammetry. Apple ARKit and Google ARCore also map your environment using the camera video fused with other sensor data.