diff --git a/source/client/StarClientApplication.hpp b/source/client/StarClientApplication.hpp
index 840dc9a..323f2b7 100644
--- a/source/client/StarClientApplication.hpp
+++ b/source/client/StarClientApplication.hpp
@@ -18,6 +18,11 @@ STAR_CLASS(Input);
 STAR_CLASS(Voice);
 
 class ClientApplication : public Application {
+public:
+  void setPostProcessGroupEnabled(String group, bool enabled, Maybe<bool> save);
+  bool postProcessGroupEnabled(String group);
+  Json postProcessGroups();
+  
 protected:
   virtual void startup(StringList const& cmdLineArgs) override;
   virtual void shutdown() override;
@@ -53,9 +58,14 @@ private:
     String password;
   };
   
+  struct PostProcessGroup {
+    bool enabled;
+  };
+  
   struct PostProcessLayer {
     List<String> effects;
     unsigned passes;
+    PostProcessGroup* group;
   };
 
   void renderReload();
@@ -104,6 +114,7 @@ private:
   WorldRenderData m_renderData;
   MainInterfacePtr m_mainInterface;
   
+  StringMap<PostProcessGroup> m_postProcessGroups;
   List<PostProcessLayer> m_postProcessLayers;
 
   // Valid if main app state == SinglePlayer