code: public Vector3f normalize(Vector3f dest) {
          float invLength = 1.0f / length();
          dest.x = x * invLength;
          dest.y = y * invLength;
          dest.z = z * invLength;
          return dest;
      }
docs: /* (non-Javadoc)
  @see org.joml.Vector3fc#normalize(org.joml.Vector3f)