intro

What is Runek?

A source registry of procedural 3D components for React Three Fiber — shadcn for 3D worlds.

⌖ Explore the library in 3D →

Runek is a source registry of procedural 3D components for React Three Fiber. You pull a component’s source into your project with one command and own it — no black box, no version lock.

Every component — a bookshelf, a lake, a whole house — generates its own geometry from props and a seed. There are no .glb files, no textures, no CDN. A whole world is just data: diffable, forkable, and version-controlled like any repo.

The five principles (the moat)

1. Procedural-first — geometry from props + seed; no binary assets.
2. A world is data — every component is a pure, deterministic function of its props.
3. Seeded determinism — same seed → same result, everywhere.
4. Parametric LOD — detail scales with props and distance.
5. Local-first — no backend; a world deploys as a static site.

This very documentation is a Runek world: a walkable library built from the components it documents. Read the getting started guide to compose your first scene.