# UE5.9 running with Lumen in the browser with WebGPU

- HackerByte page: <https://hackerbyte.net/en/stories/demonstrates-unreal-engine-5-9-running-with-lumen-ray-tracing-in-the-browser-usi-50430587>
- Original source: <https://twitter.com/toreler/status/2119862440167145492>
- Hacker News discussion: <https://news.ycombinator.com/item?id=50430587>
- Submitted to Hacker News: 2026-11-09T19:33:17.000Z

Demonstrates Unreal Engine 5.9 running with Lumen ray tracing in the browser using WebGPU.

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