You can now change the quality of SSAO by sliding the SSAO Quality

include/Engine/Rendering/DrawFinalPass.h

@@ -5,6 +5,7 @@
 #include "DrawFinalPassState.h"
 #include "LightCullingPass.h"
 #include "CubeMapPass.h"
+#include "SSAOPass.h"
 #include "FrameBuffer.h"
 #include "ShaderProgram.h"
 #include "Util/UnorderedMapVec2.h"
@@ -14,12 +15,12 @@
 class DrawFinalPass
 {
 public:
-    DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCullingPass, CubeMapPass* cubeMapPass);
+    DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCullingPass, CubeMapPass* cubeMapPass, SSAOPass* ssaoPass);
     ~DrawFinalPass() { }
     void InitializeTextures();
     void InitializeFrameBuffers();
     void InitializeShaderPrograms();
-    void Draw(RenderScene& scene, GLuint SSAOTexture);
+    void Draw(RenderScene& scene);
     void ClearBuffer();
     void OnWindowResize();
 
@@ -38,7 +39,7 @@ private:
     void GenerateMipMapTexture(GLuint* texture, GLenum wrapping, glm::vec2 dimensions, GLint format, GLenum type, GLint numMipMaps) const;
 
     void DrawSprites(std::list<std::shared_ptr<RenderJob>>&jobs, RenderScene& scene);
-    void DrawModelRenderQueues(std::list<std::shared_ptr<RenderJob>>& jobs, RenderScene& scene, GLuint SSAOTexture);
+    void DrawModelRenderQueues(std::list<std::shared_ptr<RenderJob>>& jobs, RenderScene& scene);
     void DrawShieldToStencilBuffer(std::list<std::shared_ptr<RenderJob>>& jobs, RenderScene& scene);
     void DrawShieldedModelRenderQueue(std::list<std::shared_ptr<RenderJob>>& jobs, RenderScene& scene);
     void DrawToDepthBuffer(std::list<std::shared_ptr<RenderJob>>& jobs, RenderScene& scene);
@@ -71,6 +72,7 @@ private:
     const IRenderer* m_Renderer;
     const LightCullingPass* m_LightCullingPass;
     const CubeMapPass* m_CubeMapPass;
+	const SSAOPass* m_SSAOPass;
 
     ShaderProgram* m_ForwardPlusProgram;
     ShaderProgram* m_ExplosionEffectProgram;

include/Engine/Rendering/IRenderer.h

@@ -5,6 +5,7 @@
 #include "../OpenGL.h"
 #include "../GLM.h"
 #include "../Core/Util/Rectangle.h"
+#include "../Core/ConfigFile.h"
 #include "Util/ScreenCoords.h"
 #include "Camera.h"
 #include "RenderQueue.h"

include/Engine/Rendering/Renderer.h

@@ -32,8 +32,9 @@ class Renderer : public IRenderer
     static void glfwFrameBufferCallback(GLFWwindow* window, int width, int height);
 
 public:
-    Renderer(EventBroker* eventBroker) 
-        : m_EventBroker(eventBroker)
+	Renderer(EventBroker* eventBroker, ConfigFile* config)
+		: m_EventBroker(eventBroker)
+		, m_Config(config)
     { }
 
     virtual void Initialize() override;
@@ -47,6 +48,7 @@ private:
     //----------------------Variables----------------------//
 
     static std::unordered_map <GLFWwindow*, Renderer*> m_WindowToRenderer;
+	ConfigFile* m_Config;
 
     EventBroker* m_EventBroker;
     TextPass* m_TextPass;
@@ -67,6 +69,9 @@ private:
 	float m_SSAO_IntensityScale = 1.0f;
 	int m_SSAO_NumOfSamples = 24;
 	int m_SSAO_NumOfTurns = 7;
+	int m_SSAO_iterations = 9;
+	int m_SSAO_TextureQuality = 0;
+	int m_SSAO_Quality = 0;
 
     PickingPass* m_PickingPass;
     LightCullingPass* m_LightCullingPass;

include/Engine/Rendering/SSAOPass.h

@@ -13,18 +13,32 @@
 class SSAOPass
 {
 public:
-	SSAOPass(IRenderer* rendere);
-	~SSAOPass() { 
-		delete m_DrawBloomPass;
-	};
+	SSAOPass(IRenderer* renderer, ConfigFile* config);
+	~SSAOPass() { };
+
+	void ChangeQuality(int quality);
 
 	void Draw(GLuint depthBuffer, Camera* camera);
-	void Setting(float radius, float bias, float contrast, float intensityScale, int numOfSamples, int NumOfTurns);
+	void Setting(float radius, float bias, float contrast, float intensityScale, int numOfSamples, int numOfTurns, int iterations, int quality);
 	void ClearBuffer();
 	void OnWindowResize();
 
 	//Return the SSAO of the texture sent to Draw
-	GLuint SSAOTexture() const { return m_DrawBloomPass->GaussianTexture(); }
+	GLuint SSAOTexture() const { 
+		if (m_Quality == 0) {
+			return m_WhiteTexture->m_Texture;
+		} else {
+			return m_GaussianTexture_vert;
+		}
+	}
+
+	int TextureQuality() const {
+		if (m_Quality == 0) {
+			return 13;
+		} else {
+			return m_TextureQuality;
+		}
+	}
 
 private:
 	void InitializeTexture();
@@ -40,6 +54,7 @@ private:
 	Model* m_ScreenQuad;
 
 	const IRenderer* m_Renderer;
+	ConfigFile* m_Config;
 
 	float m_Radius;
 	float m_Bias;
@@ -47,6 +62,11 @@ private:
 	float m_IntensityScale;
 	int m_NumOfSamples;
 	int m_NumOfTurns;
+	int m_Iterations;
+	int m_TextureQuality;
+	int m_Quality;
+
+	Texture* m_WhiteTexture;
 
 	GLuint m_SSAOTexture;
 	FrameBuffer m_SSAOFramBuffer;
@@ -54,10 +74,16 @@ private:
 	GLuint m_SSAOViewSpaceZTexture;
 	FrameBuffer m_SSAOViewSpaceZFramBuffer;
 
+	GLuint m_GaussianTexture_horiz;
+	GLuint m_GaussianTexture_vert;
+
+	FrameBuffer m_GaussianFrameBuffer_horiz;
+	FrameBuffer m_GaussianFrameBuffer_vert;
+
 	ShaderProgram* m_SSAOProgram;
 	ShaderProgram* m_SSAOViewSpaceZProgram;
-
-	DrawBloomPass* m_DrawBloomPass;
+	ShaderProgram* m_GaussianProgram_horiz;
+	ShaderProgram* m_GaussianProgram_vert;
 };
 
 #endif