Tom Krcha on X: "GPT-6 Astra + @threejs is insane. We are way beyond static models. We are engineering living worlds in code now. There are no "3D model files" in this demo. Both trains are generated at runtime from Typescript/Three.js code using dimensions, profiles, and geometry functions. Wheel … / X

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Tom Krcha
@tomkrcha
GPT-6 Astra + @threejs is insane. We are way beyond static models. We are engineering living worlds in code now. There are no "3D model files" in this demo. Both trains are generated at runtime from Typescript/Three.js code using dimensions, profiles, and geometry functions. Wheel motion and explode/reassemble animations are also entirely code-driven. Runs super smooth inside the browser.
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3:46 AM · Sep 5, 2026
683.7K
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197
Tom Krcha
@tomkrcha
Sep 5
I built a full 3D railway simulator now
Tom Krcha
@tomkrcha
Sep 5
GPT-6 Astra built a full 3D railway simulation game in @threejs with a few prompts. I just kept going after the previous train modeling demo. It has 3D and isometric camera modes, you can follow each train, there are cities, junctions, river, bridges, smoke... Might add
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Luke Jackson
@m31uk3
Sep 5
Agree. This is the future and the implications of this on learning / teaching will be enormous. This opens up "gamification" as an education tool, for everyone, one might even say... "edification": the improvement or instruction of a person's mind.
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GPT-6 Astra + @threejs is insane. We are way beyond static models. We are engineering living worlds in code now. There are no "3D model files" in this demo. Both trains are generated at runtime from Typescript/Three.js code using dimensions, profiles, and geometry functions. Wheel motion and explode/reassemble animations are also entirely code-driven. Runs super smooth inside the browser.

00:00

3:46 AM · Sep 5, 2026

683.7K

Views

197