Gemini 4 Argon wrote 5,000 lines of Python, building a 3D ray tracer from scratch
fofrAI · x · 2026-10-14
Creator fofrAI casually asked Argon to render a realistic scene in pure Python; the model wrote 5,000 lines of code and built its own 3D ray-tracing engine from first principles. The accompanying video, TTS voiceover, and background music (via Lyria) were also produced by Argon.
The code is open-sourced as gemini-4-demo-vanilla-3D on GitHub: a Python+NumPy offline ray tracer rendering a sunlit concrete-and-walnut library, plus a real-time vanilla JavaScript+WebGL2 browser engine that reshapes the room as you resize the frame.
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