Azure Remote Rendering (ARR) is a service that lets you to render highly complex 3D models in real time. ARR is currently in public preview. It can be added to your Unity or Native C++ projects targeting HoloLens 2 or Windows desktop PC.
Azure Spatial Anchors (ASA) is a cross-platform service that allows you to build spatially aware mixed reality applications. With Azure Spatial Anchors, you can map, persist, and share holographic content across multiple devices, at real-world scale.