Simon Willison: Claude Opus 5.5 Ports Three.js 3D Scene to Vanilla JS + WebGL
Simon Willison · rss · 2026-11-09
Simon Willison asked Claude Opus 5.5 Medium, in the same chat where it built a Three.js 3D 'Faberge Egg', to port it to Vanilla JS + WebGL. The port succeeded (98KB vs 77KB), with minor differences he doesn't fully understand — showing Opus 5.5 can do 3D graphics without Three.js.
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