ILLIXR v4.1 Released

We are excited to announce a new release of ILLIXR (ILLinois eXtended Reality testbed) v4.1 and our ISMAR/TVCG paper with the first open low power, low latency, and high fidelity scene reconstruction and delivery system for XR. This work is our next milestone in distributed XR – harnessing remote computation via wireless networking – to provide richer XR experiences with low power, comfortable XR devices.

Real-time scene reconstruction and delivery, or scene provisioning, is central to spatial computing, enabling XR applications to perceive, understand, and interact with the real world in real time. Our system, Ada, allows XR applications on lightweight XR devices to access high-fidelity scenes in real time by offloading heavy 3D reconstruction and scene extraction to a remote server, achieving low latency and low on-device power. Ada also provides adaptive tuning to balance latency, power, fidelity, and bandwidth across diverse applications and system conditions.

Paper: Ada: A Distributed, Power-Aware Real-Time Scene Provider for XR [ISMAR’25, IEEE TVCG journal special issue] https://lnkd.in/gwgzH8x2
Poster: Oct 9 | Exhibition Hall 1F | D1-55
Talk: Oct 11 | 10:30 – 11:30 AM | Room 201 (Grand Ballroom 1)

- First open general-purpose scene provisioning system to achieve low latency, low power, and high fidelity simultaneously.
- Key idea: distributed computing with novel device–server co-design with novel transmission for fast, accurate, low-bandwidth depth and mesh data
- 6.8× faster and higher fidelity than prior SOTA
- 24% lower device power than the best on-device ADA variant
- Open-source integration in the ILLIXR testbed

If you are at ISMAR, come see how Ada makes real-time, high-fidelity scene provisioning practical for next-generation XR systems!

Joint collaboration between UIUC and Meta Reality Labs.