X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Feffects%2Fambientocclusion.h;h=d055c6851e1aa362c4aaab1ea2fb8a3c91ef5662;hb=f853ca0a365ae8b43ba8b2f4d6f21cd1c2bd4bd5;hp=b0030c5917d56e0c785600d336517448bf0cb805;hpb=fe2fc291a4fc618425c64112c9ffd3519f0b8a3e;p=libs%2Fgl.git

diff --git a/source/effects/ambientocclusion.h b/source/effects/ambientocclusion.h
index b0030c59..d055c685 100644
--- a/source/effects/ambientocclusion.h
+++ b/source/effects/ambientocclusion.h
@@ -1,19 +1,17 @@
 #ifndef MSP_GL_AMBIENTOCCLUSION_H_
 #define MSP_GL_AMBIENTOCCLUSION_H_
 
-#include "framebuffer.h"
-#include "mesh.h"
 #include "postprocessor.h"
-#include "program.h"
 #include "programdata.h"
 #include "rendertarget.h"
-#include "texture2d.h"
 
 namespace Msp {
 namespace GL {
 
+class Program;
+
 /**
-Implements screen-space ambient occlusion.
+Darkens recessed areas of the scene to simulate the occlusion of ambient light.
 
 http://en.wikipedia.org/wiki/Screen_Space_Ambient_Occlusion
 */
@@ -28,31 +26,31 @@ public:
 			Loader(Template &);
 		};
 
-		unsigned n_samples;
-		float occlusion_radius;
-		float darkness;
-		float edge_depth_threshold;
-
-		Template();
+		unsigned n_samples = 16;
+		float occlusion_radius = 0.5f;
+		float darkness = 1.0f;
+		float edge_depth_threshold = 0.1f;
 
 		virtual AmbientOcclusion *create(unsigned, unsigned) const;
 	};
 
 private:
-	Texture2D rotate_lookup;
+	const Texture2D &rotate_lookup;
 	RenderTarget occlude_target;
 	const Program &occlude_shader;
 	const Program &combine_shader;
 	mutable ProgramData shdata;
 	const Mesh &quad;
 	const Sampler &linear_sampler;
+	const Sampler &nearest_clamp_sampler;
 	const Sampler &nearest_sampler;
 
 public:
-	AmbientOcclusion(unsigned, unsigned, float = 1.0f);
+	AmbientOcclusion(unsigned, unsigned);
 
 private:
-	static float random(unsigned &);
+	static const Texture2D &get_or_create_rotate_lookup();
+	static float radical_inverse(unsigned);
 
 public:
 	void set_n_samples(unsigned);
@@ -62,6 +60,8 @@ public:
 	void set_darkness(float);
 
 	virtual void render(Renderer &, const Texture2D &, const Texture2D &);
+
+	virtual void set_debug_name(const std::string &);
 };
 
 } // namespace GL