69    public: 
virtual QOffscreenSurface *
Surface() 
const;
 
   74    public: 
virtual void SetSurface(QOffscreenSurface *_surface);
 
   77    public: 
virtual QOpenGLContext *
Context() 
const;
 
   82    public: 
virtual void SetContext(QOpenGLContext *_context);
 
   94    public: 
virtual void RenderNext(RenderSync *_renderSync) = 0;
 
   98    public: 
virtual void Update(rendering::CameraPtr _camera) = 0;