- /**
- Renders the object. If an ObjectInstance is provided, its hook functions
- are called.
- */
- void render(const ObjectInstance * =0) const;
+ virtual void render(const Tag &tag = Tag()) const;
+
+ virtual void render(Renderer &, const Tag & = Tag()) const;
+
+ /** Renders an instance of the object. The instance's hook functions are
+ called before and after drawing the mesh. */
+ virtual void render(Renderer &, const ObjectInstance &, const Tag & = Tag()) const;
+
+protected:
+ virtual void setup_render(Renderer &, const Tag &) const { }
+ virtual void finish_render(Renderer &, const Tag &) const { }