Add $Id$ to tag.*

[libs/gl.git] / source / objectinstance.h

diff --git a/source/objectinstance.h b/source/objectinstance.h
index 151e316c9e2e91faaff22fa31337f9bc9fa3d1ea..00e98791006a17eafd098cda51a2b12d5cf4809d 100644 (file)
--- a/source/objectinstance.h
+++ b/source/objectinstance.h
@@ -9,6 +9,7 @@ Distributed under the LGPL
 #define MSP_GL_OBJETCINSTANCE_H_
 
 #include <string>
+#include "renderable.h"
 
 namespace Msp {
 namespace GL {
@@ -22,8 +23,11 @@ class ObjectPass;
 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
+class ObjectInstance: public Renderable
 {
 protected:
        const Object &object;
@@ -33,8 +37,9 @@ public:
 
        const Object &get_object() const { return object; }
 
-       void render() const;
-       void render(const std::string &) const;
+       virtual bool has_pass(const Tag &tag) const;
+
+       virtual void render(const Tag &tag=Tag()) const;
 
        /**
        Hook function, called from Object just before rendering the mesh.