XR refers to a continuum of real-and-virtual combined environments generated by computers through human-machine interaction and is inclusive of the technologies associated with virtual reality (VR), augmented reality (AR), and mixed reality (MR).
Platforms
OpenXR
OpenXR is a royalty-free, open standard that provides high-performance access to XR platforms and devices. Epic Games is one of the founding members of the OpenXR Working Group along with the Khronos Group and industry partners. This multi-company group is working to solve XR fragmentation with a cross-platform standard. With OpenXR, you can create an immersive experience in Unreal Engine that can run on any system that supports the OpenXR APIs.