X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;ds=sidebyside;f=source%2Feffects%2Fsky.h;h=cb8403e77709ff0eb8ab81e9f306c3a4fa422e2b;hb=HEAD;hp=be31b3085625001c9603adb1c28f4232e64862da;hpb=5bb193f930fb8738d099d630c4d625d82c1215b5;p=libs%2Fgl.git

diff --git a/source/effects/sky.h b/source/effects/sky.h
index be31b308..cb8403e7 100644
--- a/source/effects/sky.h
+++ b/source/effects/sky.h
@@ -8,14 +8,19 @@
 namespace Msp {
 namespace GL {
 
+class DirectionalLight;
 class Mesh;
-class Light;
 class Program;
 
 /**
-Renders a procedurally generated sky at the background.  Based on the paper
-"A Scalable and Production Ready Sky and Atmosphere Rendering Technique" by
-Sébastien Hillaire (https://sebh.github.io/publications/egsr2020.pdf).
+Renders a procedurally generated sky at the background.
+
+In addition to the background, the transmittance of the sun light is calculated
+to produce realistic lighting at dawn and dusk.
+
+Based on the techniques described in "A Scalable and Production Ready Sky and
+Atmosphere Rendering Technique" by Sébastien Hillaire
+(https://sebh.github.io/publications/egsr2020.pdf).
 */
 class Sky: public Effect
 {
@@ -39,9 +44,27 @@ public:
 		static Planet earth();
 	};
 
+	struct Template: Effect::Template
+	{
+		class Loader: public DataFile::DerivedObjectLoader<Template, Effect::Template::Loader>
+		{
+		private:
+			static ActionMap shared_actions;
+
+		public:
+			Loader(Template &, Collection &);
+		private:
+			virtual void init_actions();
+		};
+
+		DirectionalLight *sun = 0;
+
+		virtual Sky *create(const std::map<std::string, Renderable *> &) const;
+	};
+
 private:
 	Planet planet;
-	Light &sun;
+	DirectionalLight &sun;
 	RenderTarget transmittance_lookup;
 	const Program &transmittance_shprog;
 	bool transmittance_lookup_dirty;
@@ -51,12 +74,13 @@ private:
 	const Program &backdrop_shprog;
 	const Sampler &sampler;
 	const Sampler &wrap_sampler;
+	const Texture &dummy_texture;
 	mutable ProgramData shdata;
 	float view_height;
 	bool rendered;
 
 public:
-	Sky(Renderable &, Light &);
+	Sky(Renderable &, DirectionalLight &);
 
 	void set_planet(const Planet &);
 	void set_view_height(float);