3 This file is part of libmspgl
4 Copyright © 2007 Mikko Rasa, Mikkosoft Productions
5 Distributed under the LGPL
8 #ifndef MSP_GL_OBJETCINSTANCE_H_
9 #define MSP_GL_OBJETCINSTANCE_H_
12 #include "renderable.h"
21 Represents a single instance of an Object. An application can derive another
22 class from this and overload the hook functions to specify location and other
23 instance-specific parameters for the rendered objects.
25 The finish_render function generally should clean up everything done by
26 setup_render, unless the rendering sequence is known to allow otherwise.
28 class ObjectInstance: public Renderable
34 ObjectInstance(const Object &);
36 const Object &get_object() const { return object; }
38 virtual void render(const Tag &tag = Tag()) const;
41 Hook function, called from Object just before rendering the mesh.
43 virtual void setup_render(const Tag &) const { }
46 Hook function, called from Object right after rendering the mesh.
48 virtual void finish_render(const Tag &) const { }
50 virtual unsigned get_level_of_detail() const { return 0; }