Zero-GC seeded Simplex 2D/3D noise, unrolled FBM, ridged/billow multifractals, seamless loop, tileable field, curl2, curl3, domain warp, and bakeable heightfields + 3D scalar volumes. Deterministic via seeded permutation table.

A regular grid of heights and the questions asked of one: bilinear fetch, normals and slope, band-limiting filters, a horizon bake for sky view, and skirted chunk meshes. Pure arithmetic; imports nothing.

Procedural geometry for three.js games: chamfered primitives, walls with cut openings, lofts, sweeps, merge and instancing accumulators, route and racing-line maths. It builds triangles; it owns no game content.

A box-and-ramp world for three.js games with interiors: a collision broadphase with a swept capsule, ground and ray queries, a geometry builder, a nav graph and parametric fittings.