code: public Vector3i add(Vector3ic v, Vector3i dest) {
          dest.x = x + v.x();
          dest.y = y + v.y();
          dest.z = z + v.z();
          return dest;
      }
docs: /* (non-Javadoc)
  @see org.joml.Vector3ic#add(org.joml.Vector3ic, org.joml.Vector3i)