@phaserjs/phaser/math/vec3/Vec3TransformQuat.js

Phaser 4

import { Vec3 } from "./Vec3";
export function Vec3TransformQuat(a, q, out = new Vec3()) {
  const { x: qx, y: qy, z: qz, w: qw } = q;
  const { x, y, z } = a;
  let uvx = qy * z - qz * y;
  let uvy = qz * x - qx * z;
  let uvz = qx * y - qy * x;
  let uuvx = qy * uvz - qz * uvy;
  let uuvy = qz * uvx - qx * uvz;
  let uuvz = qx * uvy - qy * uvx;
  const w2 = qw * 2;
  uvx *= w2;
  uvy *= w2;
  uvz *= w2;
  uuvx *= 2;
  uuvy *= 2;
  uuvz *= 2;
  return out.set(x + uvx + uuvx, y + uvy + uuvy, z + uvz + uuvz);
}