SunaBox: High-performance deterministic particle physics sandbox powered by WebGPU

cheetoskull · reddit · 2026-08-16

SunaBox is a modern physics sandbox paying homage to OE-CAKE, powered by the newly open-source SunaEngine. The engine relies on integer calculations and order-independent accumulation to achieve deterministic physics simulations, ensuring bit-identical results across any WebGPU-compatible browser. This enables low-latency cross-platform multiplayer (transmitting only inputs) and perfect recording/playback. The author shared their workflow of using Claude to assist with math derivation and coding.

Original post →

More from Apps

• DSCO Router Launches Unified Gateway for Multi-Model Routing with BYOK Support — arthurcolle · 2026-08-24
• Dev bottleneck shifts from writing to reading code: exe.dev co-founder — thursdai_pod · 2026-08-24
• WatchGPT app updated with OpenAI's latest real-time speech models — AIandDesign · 2026-08-24
• Tool requested: Krea2 PNG prompt reader for Windows — paruruwhyusosalty · 2026-08-24
• Users report ChatGPT erasing conversation history upon tab reload — Turbulent_Door_1012 · 2026-08-24
• MinMax H3 test: 98% PT-BR accuracy, 3:4 gen is faster — ramscheid · 2026-08-24

Apps channel →