GPT-6 Astra builds a flamethrower demo in Three.js from a screen recording

techartist_ · x · 2026-09-19

Developer techartist recreated a flamethrower effect inspired by Dan Greenheck using GPT-6 Astra + Three.js. Starting from only a screen recording as visual reference, it took just two iterations to reach the final result; the 2x/4x speedups on menu selections were only to keep the video short.

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