public override ImageModifierGui gui()
 {
     if (_gui == null) _gui = new MultipleBaseTextureGui(this);
     return _gui;
 }
            public override void cleanUp()
            {
                if (_mainTextInfo != null)
                {
                    for (int i = 0; i < _mainTextInfo.Count; ++i)
                    {
                        _mainTextInfo[i].cleanUpTexture();
                        _mainTextInfo[i].cleanUp();
                    }
                }

                if (_normalTextInfo != null)
                {
                    for (int i = 0; i < _normalTextInfo.Count; ++i)
                    {
                        _normalTextInfo[i].cleanUpTexture();
                        _normalTextInfo[i].cleanUp();
                    }
                }

                _gui = null;
            }