public Vector3f getTranslation(Vector3f trans) { if (trans==null) trans=new Vector3f(); trans.set(this.translation); return trans;
public Vector3f getTranslation() { return translation;
    public Vector3f getTranslation(Vector3f trans) {        if (trans==null) trans=new Vector3f();        trans.set(this.translation);        return trans;    }