Claude Code + Opus 5.5 builds a 61 KB WebGPU ocean in HTML
A creator used Claude Code with Opus 5.5 to build a 61 KB self-contained HTML ocean with FFT waves, whitecaps and a sunset sky, running in the browser on WebGPU with no engine or rendering library.
This entire ocean is a 61 KB HTML file. Built with Claude Code + Opus 5.5 in about 30 minutes, according to its creator. It runs in the browser using WebGPU: FFT waves, whitecaps, sun glitter, a physically based sunset sky with clouds, and a free-flying camera. No game engine or rendering library. Claude rendered screenshots in headless Chrome, then had separate subagents critique them. The creator gave feedback along the way, mainly on the clouds. The 61 KB build is minified and self-contained. Download it, open it in Chrome with WebGPU support, and explore with WASD.