Developer Implements Radix Sort Using Only Fragment Shaders in VRChat

A developer implemented radix sort entirely with fragment shader blits in VRChat's restricted Udon environment, which lacks compute shaders and atomics, achieving 5 billion key-value pairs sorted per second.

2026-09-03 ~ 2026-09-03 · 2 related posts

• Radix sort in pure fragment shaders: 5B key/value pairs/sec with zero compute shaders — Michael_Moroz_ · 2026-09-03

1 near-duplicate retellings: Michael_Moroz_