SCAXR: Empowering Scalable Multi-User Interaction for Heterogeneous XR Devices

Scalable multi-user interactions on diverse extended reality (XR) devices are vital for the metaverse’s fruition. However, issues like broad user access, intensive interaction rendering, and limited device resources complicate existing interactions based on client-server and peer-to-peer structures. The metaverse’s demands for scalable access and detailed scene rendering intensify these problems. In response, we present SCAXR, a collaborative architecture enhancing multi-user interaction. SCAXR leverages three key components: an on-demand rendering module, a distributed rendering process, and edge-cloud synchronization. This module ensures timely communication between XR devices and edge servers. We tested SCAXR’s efficacy with a Unity Render Streaming-based XR meeting prototype. Results show SCAXR boosts access capacity by 50% over traditional methods and enhances complex scene interaction performance by up to 7.8 times in rendering frequency.