Cache renderables in SimpleScene into a vector

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

diff --git a/source/simplescene.h b/source/simplescene.h
index deba4d5f8877b872aa6d3be5dcc5cb7eecf7c0e1..ae7d169e408df3f790cd93f7daa3955b17f033cf 100644 (file)
--- a/source/simplescene.h
+++ b/source/simplescene.h
@@ -8,19 +8,25 @@ namespace Msp {
 namespace GL {
 
 /**
-The simplest possible Scene.  Rendering order is unspecified.
+A simple yet efficient scene.  Rendering order is unspecified.
 */
 class SimpleScene: public Scene
 {
 protected:
        typedef std::set<const Renderable *> RenderableSet;
+       typedef std::vector<const Renderable *> RenderableArray;
 
        RenderableSet renderables;
+       mutable RenderableArray cache;
 
 public:
        virtual void add(const Renderable &);
        virtual void remove(const Renderable &);
 
+private:
+       void populate_cache() const;
+
+public:
        virtual void setup_frame() const;
        virtual void finish_frame() const;