GPT-6 Astra builds a procedural three.js game under 2MB, then remakes it in Blender
gabrielchua · x · 2026-09-05
Designer MengTo tested GPT-6 Astra by having it build a polished three.js game: rocks, trees, monuments and characters are all procedural code, keeping the game under 2MB before image/music assets. Astra then recreated every scene in Blender and produced the trailer itself.
- The UI feels far more polished and "less like AI slop", though he still had to push it on details
- Icons, buttons and ornaments were made as transparent PNGs with GPT Image 2
- He calls the level of autonomy unbelievable, calling it a massive upgrade for 3D graphics and front-end design
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