Refresh lighting and culling uniforms if the camera changes in pop_state

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

diff --git a/source/effect.h b/source/effect.h
index 9f49c81855d4ac749b2509dd12ac4b6e49871810..4be963f653c686ac9a1688f2be8e13399645a341 100644 (file)
--- a/source/effect.h
+++ b/source/effect.h
@@ -1,21 +1,34 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2009  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #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:
+       Renderable &renderable;
+       std::set<Tag> enabled_passes;
+
+       Effect(Renderable &);
 public:
-       virtual void prepare() =0;
-       virtual void cleanup() =0;
+       virtual ~Effect() { }
+
+       void enable_for_pass(const Tag &);
+       void disable_for_pass(const Tag &);
+
+       virtual const Matrix *get_matrix() const { return renderable.get_matrix(); }
+
+       virtual void setup_frame(Renderer &r) { renderable.setup_frame(r); }
+       virtual void finish_frame() { renderable.finish_frame(); }
 };
 
 } // namespace GL