3D Scene

Random-Eyes — Procedural Human Eye in Three.js

Gianluca Lomarco

@__rockbiter · 1.4K followers

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Oct 26, 2026

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A photorealistic human eye rendered entirely in-browser using Three.js — zero textures, zero 3D models, zero photos. Every detail, from iris crypts to individual lashes, is generated purely through math and light across ~400 parameters. @__rockbiter spent 7 days obsessing over a single eye while everyone else was building worlds. Running at 88 FPS with an interactive iris configurator and photo mode, it's one of the most technically committed browser demos to come out of the Claude Opus 5.5 wave.

Pure procedural rendering: iris, cornea, lashes and sclera built entirely from math — no texture maps anywhere
~400 tunable parameters with a live iris configurator running at 88 FPS in-browser
7 days of focused craft on a single subject, resulting in near-photographic realism

“Everyone's using Claude Opus 5.5 to build entire worlds in #threejs. I spent 7 days on a single human eye. No textures. No 3D models. No photos. Just math, light and ~400 parameters. Sound on 🔊 Link below 👇”
— @__rockbiter

threejs webgl procedural 3d interactive-demo shader dark-mode 3d bold-typography