X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Feffect.h;h=7eeae682dffb00d593601b94e9eca82735a23f2e;hb=904de4f7fd994886adbd3a6c03bc1b7c14ebc562;hp=2f9c56d2572f2703723044c25e058df995b7fec8;hpb=f14435e58bfa0fa697a06ba9a454bb30cd37d9d8;p=libs%2Fgl.git

diff --git a/source/effect.h b/source/effect.h
index 2f9c56d2..7eeae682 100644
--- a/source/effect.h
+++ b/source/effect.h
@@ -1,16 +1,29 @@
 #ifndef MSP_GL_EFFECT_H_
 #define MSP_GL_EFFECT_H_
 
+#include <set>
+#include "renderable.h"
+
 namespace Msp {
 namespace GL {
 
-class Effect
+/**
+Effects are used to wrap other renderables and give them additional visual
+properties.  An Effect's render method should set up the necessary state, call
+the wrapped Renderable's render method, and clean up after itself.
+*/
+class Effect: public Renderable
 {
+protected:
+	const Renderable &renderable;
+	std::set<Tag> enabled_passes;
+
+	Effect(const Renderable &);
 public:
 	virtual ~Effect() { }
 
-	virtual void prepare() =0;
-	virtual void cleanup() =0;
+	void enable_for_pass(const Tag &);
+	void disable_for_pass(const Tag &);
 };
 
 } // namespace GL