1 #ifndef MSP_GL_RENDERABLE_H_
2 #define MSP_GL_RENDERABLE_H_
17 virtual ~Renderable() { }
19 /** Returns a key used for grouping Renderables in an InstanceScene. */
20 virtual long get_instance_key() const { return 0; }
22 virtual void render(const Tag & = Tag()) const;
23 virtual void render(Renderer &, const Tag & = Tag()) const;