Ditching Three.js for Native WebGPU: Opus 5.5 Fishing Game Hits 100FPS, Open-Sourced

EricBuess · x · 2026-09-25

Developer dangreenheck iterated his coastal demo into a cozy fishing game: catch fish, sell them to Joe, buy boat parts from Marta. His key experiment: dropping Three.js (far more common in training data) for native WebGPU to give the AI more control — and Opus 5.5 never missed a beat.

An optimization pass lifted performance from 60FPS to 100FPS before new features ate most of the gains, with heavy iteration on environments, plants, models and wear-and-tear detail. Code is open source; he "didn't really find the limits" of Opus 5.5, calling this his final update.

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