XR / Spatial Computing
OpenXR From Zero: One API for Quest, Vision Pro, SteamVR and the Rest
Before OpenXR, supporting three headsets meant three SDKs and three codebases. Now there is one Khronos standard that every major runtime implements. This covers the concepts that make the API comprehensible — instance, system, session, the frame loop, spaces and action sets — and is honest about when a game engine is the better answer.