code: public Vector3d transformDirection(Vector3d dest) {
          dest.set(m00 * dest.x + m10 * dest.y + m20 * dest.z,
                   m01 * dest.x + m11 * dest.y + m21 * dest.z,
                   m02 * dest.x + m12 * dest.y + m22 * dest.z);
          return dest;
      }
docs: /* (non-Javadoc)
  @see org.joml.Matrix4dc#transformDirection(org.joml.Vector3d)