X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fobjectinstance.h;h=5911dae57fb6f173210ea18936a8e353c11c9f54;hp=602cbc24d80a50989a4faee48db6e0319bda9cdc;hb=f14435e58bfa0fa697a06ba9a454bb30cd37d9d8;hpb=e759062876ee7fc81d1c2f40818d5bf97898d53d

diff --git a/source/objectinstance.h b/source/objectinstance.h
index 602cbc24..5911dae5 100644
--- a/source/objectinstance.h
+++ b/source/objectinstance.h
@@ -1,10 +1,3 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #ifndef MSP_GL_OBJETCINSTANCE_H_
 #define MSP_GL_OBJETCINSTANCE_H_
 
@@ -21,9 +14,6 @@ class ProgramData;
 Represents a single instance of an Object.  An application can derive another
 class from this and overload the hook functions to specify location and other
 instance-specific parameters for the rendered objects.
-
-The finish_render function generally should clean up everything done by
-setup_render, unless the rendering sequence is known to allow otherwise.
 */
 class ObjectInstance: public Renderable
 {
@@ -34,18 +24,19 @@ public:
 	ObjectInstance(const Object &);
 
 	const Object &get_object() const { return object; }
+	virtual long get_instance_key() const { return reinterpret_cast<long>(&object); }
 
-	virtual void render(const Tag &tag=Tag()) const;
+	virtual void render(const Tag &tag = Tag()) const;
+	virtual void render(Renderer &, const Tag & = Tag()) const;
 
-	/**
-	Hook function, called from Object just before rendering the mesh.
-	*/
-	virtual void setup_render(const Tag &) const { }
+	/** Hook function, called from Object just before rendering the mesh.
+	Renderer state will have been pushed before this is called. */
+	virtual void setup_render(Renderer &, const Tag &) const { }
 
-	/**
-	Hook function, called from Object right after rendering the mesh.
-	*/
-	virtual void finish_render(const Tag &) const { }
+	/** Hook function, called from Object right after rendering the mesh.  Since
+	Object takes care of pushing Renderer state, this rarely needs to do
+	anything. */
+	virtual void finish_render(Renderer &, const Tag &) const { }
 
 	virtual unsigned get_level_of_detail() const { return 0; }
 };