@phaserjs/phaser/math/vec3/Vec3Fract.js

Phaser 4

import { Vec3 } from "./Vec3";
export function Vec3Fract(a, out = new Vec3()) {
  return out.set(a.x - Math.floor(a.x), a.y - Math.floor(a.y), a.z - Math.floor(a.z));
}