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

src/Engine/Rendering/CubeMapPass.cpp

@@ -17,6 +17,7 @@ void CubeMapPass::LoadTextures(std::string input)
             m_CubeMapTextures.push_back(img);
         }
         GenerateCubeMapTexture();
+		m_PreviusCubeMapTexture = input;
     }
 }
 

src/Engine/Rendering/DrawFinalPass.cpp

@@ -1,9 +1,9 @@
 #include "Rendering/DrawFinalPass.h"
-
-DrawFinalPass::DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCullingPass, CubeMapPass* cubeMapPass)
-    : m_Renderer(renderer)
-    , m_LightCullingPass(lightCullingPass)
-    , m_CubeMapPass(cubeMapPass)
+DrawFinalPass::DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCullingPass, CubeMapPass* cubeMapPass, SSAOPass* ssaoPass)
+	: m_Renderer(renderer)
+	, m_LightCullingPass(lightCullingPass)
+	, m_CubeMapPass(cubeMapPass)
+	, m_SSAOPass(ssaoPass)
 {
     //TODO: Make sure that uniforms are not sent into shader if not needed.
     m_ShieldPixelRate = 8;
@@ -175,7 +175,7 @@ void DrawFinalPass::InitializeShaderPrograms()
     GLERROR("Creating DepthFill program");
 }
 
-void DrawFinalPass::Draw(RenderScene& scene, GLuint SSAOTexture)
+void DrawFinalPass::Draw(RenderScene& scene)
 {
     GLERROR("Pre");
     DrawFinalPassState* state = new DrawFinalPassState(m_FinalPassFrameBuffer.GetHandle());
@@ -191,10 +191,10 @@ void DrawFinalPass::Draw(RenderScene& scene, GLuint SSAOTexture)
     //Fill depth buffer
 	
     state->StencilMask(0x00);
-    DrawModelRenderQueues(scene.Jobs.OpaqueObjects, scene, SSAOTexture);
+    DrawModelRenderQueues(scene.Jobs.OpaqueObjects, scene);
     GLERROR("OpaqueObjects");
     state->BlendFunc(GL_ONE, GL_ONE);
-    DrawModelRenderQueues(scene.Jobs.TransparentObjects, scene, SSAOTexture);
+    DrawModelRenderQueues(scene.Jobs.TransparentObjects, scene);
     GLERROR("TransparentObjects");
     state->BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
     DrawSprites(scene.Jobs.SpriteJob, scene);
@@ -210,11 +210,11 @@ void DrawFinalPass::Draw(RenderScene& scene, GLuint SSAOTexture)
     //Draw Opaque shielded objects
     state->StencilFunc(GL_NOTEQUAL, 1, 0xFF);
     state->StencilMask(0x00);
-    DrawModelRenderQueues(scene.Jobs.OpaqueShieldedObjects, scene, SSAOTexture); //might need changing
+    DrawModelRenderQueues(scene.Jobs.OpaqueShieldedObjects, scene); //might need changing
     GLERROR("Shielded Opaque object");
 
     //Draw Transparen Shielded objects
-    DrawModelRenderQueues(scene.Jobs.TransparentShieldedObjects, scene, SSAOTexture); //might need changing
+    DrawModelRenderQueues(scene.Jobs.TransparentShieldedObjects, scene); //might need changing
     GLERROR("Shielded Transparent objects");
 
     GLERROR("END");
@@ -250,9 +250,9 @@ void DrawFinalPass::Draw(RenderScene& scene, GLuint SSAOTexture)
     stateLowRes->Enable(GL_DEPTH_TEST);
     stateLowRes->StencilFunc(GL_LEQUAL, 1, 0xFF);
     stateLowRes->StencilMask(0x00);
-    DrawModelRenderQueues(scene.Jobs.OpaqueObjects, scene, SSAOTexture);
+    DrawModelRenderQueues(scene.Jobs.OpaqueObjects, scene);
     GLERROR("OpaqueObjects");
-    DrawModelRenderQueues(scene.Jobs.TransparentObjects, scene, SSAOTexture);
+    DrawModelRenderQueues(scene.Jobs.TransparentObjects, scene);
     GLERROR("TransparentObjects");
     glViewport(0, 0, m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height);
     glScissor(0, 0, m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height);
@@ -340,7 +340,7 @@ void DrawFinalPass::GenerateMipMapTexture(GLuint* texture, GLenum wrapping, glm:
     GLERROR("MipMap Texture initialization failed");
 }
 
-void DrawFinalPass::DrawModelRenderQueues(std::list<std::shared_ptr<RenderJob>>& jobs, RenderScene& scene, GLuint SSAOTexture)
+void DrawFinalPass::DrawModelRenderQueues(std::list<std::shared_ptr<RenderJob>>& jobs, RenderScene& scene)
 {
     GLuint forwardHandle = m_ForwardPlusProgram->GetHandle();
     GLERROR("forwardHandle");
@@ -364,7 +364,7 @@ void DrawFinalPass::DrawModelRenderQueues(std::list<std::shared_ptr<RenderJob>>&
     glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 4, m_LightCullingPass->LightIndexSSBO());
 
 	glActiveTexture(GL_TEXTURE0);
-	glBindTexture(GL_TEXTURE_2D, SSAOTexture);
+	glBindTexture(GL_TEXTURE_2D, m_SSAOPass->SSAOTexture());
 
     for (auto &job : jobs) {
         auto explosionEffectJob = std::dynamic_pointer_cast<ExplosionEffectJob>(job);
@@ -383,7 +383,7 @@ void DrawFinalPass::DrawModelRenderQueues(std::list<std::shared_ptr<RenderJob>>&
                     BindExplosionTextures(explosionSkinnedHandle, explosionEffectJob);
                     glActiveTexture(GL_TEXTURE5);
                     glBindTexture(GL_TEXTURE_CUBE_MAP, m_CubeMapPass->m_CubeMapTexture);
-                    glUniform3fv(glGetUniformLocation(forwardHandle, "CameraPosition"), 1, glm::value_ptr(scene.Camera->Position()));
+                    glUniform3fv(glGetUniformLocation(explosionSkinnedHandle, "CameraPosition"), 1, glm::value_ptr(scene.Camera->Position()));
 
                     std::vector<glm::mat4> frameBones;
                     if (explosionEffectJob->AnimationOffset.animation != nullptr) {
@@ -401,7 +401,7 @@ void DrawFinalPass::DrawModelRenderQueues(std::list<std::shared_ptr<RenderJob>>&
                     BindExplosionTextures(explosionHandle, explosionEffectJob);
                     glActiveTexture(GL_TEXTURE5);
                     glBindTexture(GL_TEXTURE_CUBE_MAP, m_CubeMapPass->m_CubeMapTexture);
-                    glUniform3fv(glGetUniformLocation(forwardHandle, "CameraPosition"), 1, glm::value_ptr(scene.Camera->Position()));
+                    glUniform3fv(glGetUniformLocation(explosionHandle, "CameraPosition"), 1, glm::value_ptr(scene.Camera->Position()));
 
                 }
                 break;
@@ -463,7 +463,7 @@ void DrawFinalPass::DrawModelRenderQueues(std::list<std::shared_ptr<RenderJob>>&
                             BindModelTextures(forwardSkinnedHandle, modelJob);
                             glActiveTexture(GL_TEXTURE5);
                             glBindTexture(GL_TEXTURE_CUBE_MAP, m_CubeMapPass->m_CubeMapTexture);
-                            glUniform3fv(glGetUniformLocation(forwardHandle, "CameraPosition"), 1, glm::value_ptr(scene.Camera->Position()));
+                            glUniform3fv(glGetUniformLocation(forwardSkinnedHandle, "CameraPosition"), 1, glm::value_ptr(scene.Camera->Position()));
 
                             std::vector<glm::mat4> frameBones;
                             if (modelJob->AnimationOffset.animation != nullptr) {
@@ -753,6 +753,7 @@ void DrawFinalPass::DrawSprites(std::list<std::shared_ptr<RenderJob>>&jobs, Rend
 
 void DrawFinalPass::BindExplosionUniforms(GLuint shaderHandle, std::shared_ptr<ExplosionEffectJob>& job, RenderScene& scene)
 {
+	glUniform1i(glGetUniformLocation(shaderHandle, "SSAOQuality"), m_SSAOPass->TextureQuality());
 	GLERROR("Bind 1 uniform");
     glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "M"), 1, GL_FALSE, glm::value_ptr(job->Matrix));
 	GLERROR("Bind 2 uniform");
@@ -801,6 +802,7 @@ void DrawFinalPass::BindExplosionUniforms(GLuint shaderHandle, std::shared_ptr<E
 
 void DrawFinalPass::BindModelUniforms(GLuint shaderHandle, std::shared_ptr<ModelJob>& job, RenderScene& scene)
 {
+	glUniform1i(glGetUniformLocation(shaderHandle, "SSAOQuality"), m_SSAOPass->TextureQuality());
 	GLERROR("Bind 1 uniform");
 	GLint Location_M = glGetUniformLocation(shaderHandle, "M");
 	glUniformMatrix4fv(Location_M, 1, GL_FALSE, glm::value_ptr(job->Matrix));

src/Engine/Rendering/FrameBuffer.cpp

@@ -42,33 +42,33 @@ void FrameBuffer::Generate()
     GLERROR("PRE");
 
     std::vector<GLenum> attachments;
-
-    glGenFramebuffers(1, &m_BufferHandle);
+	if (m_BufferHandle == 0) {
+		glGenFramebuffers(1, &m_BufferHandle);
+	}
     glBindFramebuffer(GL_FRAMEBUFFER, m_BufferHandle);
     GLERROR("1");
 
-    for (auto it = m_Resources.begin(); it != m_Resources.end(); it++) {
-        switch ((*it)->m_ResourceType) {
-        case GL_TEXTURE_2D:
-            glFramebufferTexture2D(GL_FRAMEBUFFER, (*it)->m_Attachment, (*it)->m_ResourceType, *(*it)->m_ResourceHandle, 0);
-            GLERROR("FrameBuffer generate: glFramebufferTexture2D");
+	for (auto it = m_Resources.begin(); it != m_Resources.end(); it++) {
+		switch ((*it)->m_ResourceType) {
+		case GL_TEXTURE_2D:
+			glFramebufferTexture2D(GL_FRAMEBUFFER, (*it)->m_Attachment, (*it)->m_ResourceType, *(*it)->m_ResourceHandle, 0);
+			GLERROR("FrameBuffer generate: glFramebufferTexture2D");
 
-            break;
-        case GL_RENDERBUFFER:
-            glFramebufferRenderbuffer(GL_FRAMEBUFFER, (*it)->m_Attachment, (*it)->m_ResourceType, *(*it)->m_ResourceHandle);
-            GLERROR("FrameBuffer generate: glFramebufferRenderbuffer");
-            break;
-        }
-        GLERROR("2");
+			break;
+		case GL_RENDERBUFFER:
+			glFramebufferRenderbuffer(GL_FRAMEBUFFER, (*it)->m_Attachment, (*it)->m_ResourceType, *(*it)->m_ResourceHandle);
+			GLERROR("FrameBuffer generate: glFramebufferRenderbuffer");
+			break;
+		}
+		GLERROR("2");
 
-        if ((*it)->m_Attachment != GL_DEPTH_ATTACHMENT && (*it)->m_Attachment != GL_STENCIL_ATTACHMENT && (*it)->m_Attachment != GL_DEPTH_STENCIL_ATTACHMENT) {
-            attachments.push_back((*it)->m_Attachment);
-        }
-        GLERROR("Attachment");
-
-    }
-    GLERROR("3");
+		if ((*it)->m_Attachment != GL_DEPTH_ATTACHMENT && (*it)->m_Attachment != GL_STENCIL_ATTACHMENT && (*it)->m_Attachment != GL_DEPTH_STENCIL_ATTACHMENT) {
+			attachments.push_back((*it)->m_Attachment);
+		}
+		GLERROR("Attachment");
 
+	}
+	GLERROR("3");
 
     GLenum* bufferTextures = &attachments[0];
     glDrawBuffers(attachments.size(), bufferTextures);

src/Engine/Rendering/Renderer.cpp

@@ -121,7 +121,11 @@ void Renderer::Draw(RenderFrame& frame)
 	ImGui::SliderFloat("SSAO IntensityScale", &m_SSAO_IntensityScale, 0.0f, 10.0f);
 	ImGui::SliderInt("SSAO Number of Samples", &m_SSAO_NumOfSamples, 2, 100);
 	ImGui::SliderInt("SSAO Number of Turns", &m_SSAO_NumOfTurns, 0, 50);
-	m_SSAOPass->Setting(m_SSAO_Radius, m_SSAO_Bias, m_SSAO_Contrast, m_SSAO_IntensityScale, m_SSAO_NumOfSamples, m_SSAO_NumOfTurns);
+	ImGui::SliderInt("SSAO Blur Iterations", &m_SSAO_iterations, 0, 20);
+	ImGui::SliderInt("SSAO TextureQuality", &m_SSAO_TextureQuality, 0, 4);
+	ImGui::SliderInt("SSAO Quality", &m_SSAO_Quality, 0, 3);
+	//m_SSAOPass->Setting(m_SSAO_Radius, m_SSAO_Bias, m_SSAO_Contrast, m_SSAO_IntensityScale, m_SSAO_NumOfSamples, m_SSAO_NumOfTurns, m_SSAO_iterations, m_SSAO_TextureQuality);
+	m_SSAOPass->ChangeQuality(m_SSAO_Quality);
     GLERROR("SSAO Settings");
     //clear buffer 0
     glClearColor(0.f, 0.f, 0.f, 0.f);
@@ -159,7 +163,7 @@ void Renderer::Draw(RenderFrame& frame)
         PerformanceTimer::StartTimerAndStopPrevious("Renderer-Light Culling");
         m_LightCullingPass->CullLights(*scene);
         GLERROR("LightCulling");
-		m_DrawFinalPass->Draw(*scene, ao);
+		m_DrawFinalPass->Draw(*scene);
         PerformanceTimer::StartTimerAndStopPrevious("Renderer-Draw Geometry+Light");
         GLERROR("Draw Geometry+Light");
         //m_DrawScenePass->Draw(*scene);
@@ -248,9 +252,10 @@ void Renderer::InitializeRenderPasses()
     m_PickingPass = new PickingPass(this, m_EventBroker);
     m_LightCullingPass = new LightCullingPass(this);
     m_CubeMapPass = new CubeMapPass(this);
-    m_DrawFinalPass = new DrawFinalPass(this, m_LightCullingPass, m_CubeMapPass);
+	m_SSAOPass = new SSAOPass(this, m_Config);
+    m_DrawFinalPass = new DrawFinalPass(this, m_LightCullingPass, m_CubeMapPass, m_SSAOPass);
     m_DrawScreenQuadPass = new DrawScreenQuadPass(this);
     m_DrawBloomPass = new DrawBloomPass(this);
     m_DrawColorCorrectionPass = new DrawColorCorrectionPass(this);
-    m_SSAOPass = new SSAOPass(this);
+  
 }

src/Engine/Rendering/SSAOPass.cpp

@@ -1,50 +1,134 @@
 #include "Rendering/SSAOPass.h"
 
-SSAOPass::SSAOPass(IRenderer* renderer)
+SSAOPass::SSAOPass(IRenderer* renderer, ConfigFile* config)
+	: m_Renderer(renderer)
+	, m_Config(config)
 {
-	m_Renderer = renderer;
+	m_WhiteTexture = CommonFunctions::LoadTexture("Textures/Core/White.png", false);
+
+	m_Quality = m_Config->Get<int>("SSAO.Quality", 0);
+	if (m_Quality == 0) {	
+		return;
+	}
+	
+	ChangeQuality(m_Quality);
+
+}
+
+void SSAOPass::ChangeQuality(int quality)
+{
+	if (m_Quality == quality) {
+		return;
+	}
+
+	m_Quality = quality;
+
+	if (m_Quality == 0) {	
+		glDeleteTextures(1, &m_SSAOTexture);
+		glDeleteTextures(1, &m_SSAOViewSpaceZTexture);
+		glDeleteTextures(1, &m_GaussianTexture_horiz);
+		glDeleteTextures(1, &m_GaussianTexture_vert);
+		return;
+	}
+
+	std::string qStr = std::to_string(m_Quality);
+	Setting(
+		m_Config->Get<float>("SSAO" + qStr + ".Radius", 0.01),
+		m_Config->Get<float>("SSAO" + qStr + ".Bias", 0.012),
+		m_Config->Get<float>("SSAO" + qStr + ".Contrast", 1.0),
+		m_Config->Get<float>("SSAO" + qStr + ".Intensity", 1.0),
+		m_Config->Get<int>("SSAO" + qStr + ".NumSamples", 0),
+		m_Config->Get<int>("SSAO" + qStr + ".NumTurns", 0),
+		m_Config->Get<int>("SSAO" + qStr + ".NumIterations", 0),
+		m_Config->Get<int>("SSAO" + qStr + ".TextureQuality", 4)
+		);
+
+
 
 	m_ScreenQuad = ResourceManager::Load<Model>("Models/Core/ScreenQuad.mesh");
 
 	InitializeTexture();
 	InitializeBuffer();
 	InitializeShaderProgram();
-	Setting(0.1f, 0.012f, 1.0f, 1.0f, 13, 7);
 
-	m_DrawBloomPass = new DrawBloomPass(renderer);
+
 }
 
 void SSAOPass::InitializeShaderProgram()
 {
 	m_SSAOProgram = ResourceManager::Load<ShaderProgram>("##SSAOProgram");
-	m_SSAOProgram->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/SSAO.vert.glsl")));
-	m_SSAOProgram->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/SSAO.frag.glsl")));
-	m_SSAOProgram->Compile();
-	m_SSAOProgram->Link();
+	if (m_SSAOProgram->GetHandle() == 0) {
+		m_SSAOProgram->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/SSAO.vert.glsl")));
+		m_SSAOProgram->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/SSAO.frag.glsl")));
+		m_SSAOProgram->Compile();
+		m_SSAOProgram->Link();
+	}
 
 	m_SSAOViewSpaceZProgram = ResourceManager::Load<ShaderProgram>("##SSAOViewSpaceZProgram");
-	m_SSAOViewSpaceZProgram->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/SSAO.vert.glsl")));
-	m_SSAOViewSpaceZProgram->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/SSAOViewSpaceZ.frag.glsl")));
-	m_SSAOViewSpaceZProgram->Compile();
-	m_SSAOViewSpaceZProgram->Link();
+	if (m_SSAOViewSpaceZProgram->GetHandle() == 0) {
+		m_SSAOViewSpaceZProgram->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/SSAO.vert.glsl")));
+		m_SSAOViewSpaceZProgram->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/SSAOViewSpaceZ.frag.glsl")));
+		m_SSAOViewSpaceZProgram->Compile();
+		m_SSAOViewSpaceZProgram->Link();
+	}
+
+	m_GaussianProgram_horiz = ResourceManager::Load<ShaderProgram>("##GaussianProgramHoriz");
+	if (m_GaussianProgram_horiz->GetHandle() == 0) {
+		m_GaussianProgram_horiz->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/Gaussian_horiz.vert.glsl")));
+		m_GaussianProgram_horiz->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/Gaussian_horiz.frag.glsl")));
+		m_GaussianProgram_horiz->Compile();
+		m_GaussianProgram_horiz->Link();
+	}
+
+	m_GaussianProgram_vert = ResourceManager::Load<ShaderProgram>("##GaussianProgramVert");
+	if (m_GaussianProgram_vert->GetHandle() == 0) {
+		m_GaussianProgram_vert->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/Gaussian_vert.vert.glsl")));
+		m_GaussianProgram_vert->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/Gaussian_vert.frag.glsl")));
+		m_GaussianProgram_vert->Compile();
+		m_GaussianProgram_vert->Link();
+	}
 }
 
 void SSAOPass::InitializeTexture() {
-	GenerateTexture(&m_SSAOTexture, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_R8, GL_RED, GL_FLOAT);
-	GenerateTexture(&m_SSAOViewSpaceZTexture, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_R32F, GL_RED, GL_FLOAT);
+	GenerateTexture(&m_SSAOTexture, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width >> m_TextureQuality, m_Renderer->GetViewportSize().Height >> m_TextureQuality), GL_R8, GL_RED, GL_FLOAT);
+	GenerateTexture(&m_SSAOViewSpaceZTexture, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width >> m_TextureQuality, m_Renderer->GetViewportSize().Height >> m_TextureQuality), GL_R32F, GL_RED, GL_FLOAT);
+
+	GenerateTexture(&m_GaussianTexture_horiz, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width >> m_TextureQuality, m_Renderer->GetViewportSize().Height >> m_TextureQuality), GL_R8, GL_RGB, GL_FLOAT);
+	GenerateTexture(&m_GaussianTexture_vert, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width >> m_TextureQuality, m_Renderer->GetViewportSize().Height >> m_TextureQuality), GL_R8, GL_RGB, GL_FLOAT);
 }
 
 void SSAOPass::InitializeBuffer()
 {
-	m_SSAOFramBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_SSAOTexture, GL_COLOR_ATTACHMENT0)));
-	m_SSAOFramBuffer.Generate();
+	if (m_SSAOFramBuffer.GetHandle() == 0) {
+		m_SSAOFramBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_SSAOTexture, GL_COLOR_ATTACHMENT0)));
+	}
+		m_SSAOFramBuffer.Generate();
+
+
+	if (m_SSAOViewSpaceZFramBuffer.GetHandle() == 0) {
+		m_SSAOViewSpaceZFramBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_SSAOViewSpaceZTexture, GL_COLOR_ATTACHMENT0)));
+	}
+		m_SSAOViewSpaceZFramBuffer.Generate();
+
+
+
+	if (m_GaussianFrameBuffer_horiz.GetHandle() == 0) {
+		m_GaussianFrameBuffer_horiz.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_GaussianTexture_horiz, GL_COLOR_ATTACHMENT0)));
+	}
+		m_GaussianFrameBuffer_horiz.Generate();
+
+
+	if (m_GaussianFrameBuffer_vert.GetHandle() == 0) {
+		m_GaussianFrameBuffer_vert.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_GaussianTexture_vert, GL_COLOR_ATTACHMENT0)));
+	}
+		m_GaussianFrameBuffer_vert.Generate();
 
-	m_SSAOViewSpaceZFramBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_SSAOViewSpaceZTexture, GL_COLOR_ATTACHMENT0)));
-	m_SSAOViewSpaceZFramBuffer.Generate();
 }
 
 void SSAOPass::ClearBuffer()
 {
+	return;
+
 	m_SSAOFramBuffer.Bind();
 	glClearColor(1.f, 1.f, 1.f, 1.f);
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
@@ -54,19 +138,32 @@ void SSAOPass::ClearBuffer()
 	glClearColor(1.f, 1.f, 1.f, 1.f);
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 	m_SSAOViewSpaceZFramBuffer.Unbind();
+
+	m_GaussianFrameBuffer_horiz.Bind();
+	glClearColor(1.f, 1.f, 1.f, 1.f);
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+	m_GaussianFrameBuffer_horiz.Unbind();
+
+	m_GaussianFrameBuffer_vert.Bind();
+	glClearColor(1.f, 1.f, 1.f, 1.f);
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+	m_GaussianFrameBuffer_vert.Unbind();
 }
 
-void SSAOPass::Setting(float radius, float bias, float contrast, float intensityScale, int numOfSamples, int NumOfTurns) {
+void SSAOPass::Setting(float radius, float bias, float contrast, float intensityScale, int numOfSamples, int numOfTurns, int iterations, int quality) {
 	m_Radius = radius;
 	m_Bias = bias;
 	m_Contrast = contrast;
 	m_IntensityScale = intensityScale;
 	m_NumOfSamples = numOfSamples;
-	m_NumOfTurns = NumOfTurns;
+	m_NumOfTurns = numOfTurns;
+	m_Iterations = iterations;
+	m_TextureQuality = quality;
 }
 
 void SSAOPass::GenerateTexture(GLuint* texture, GLenum wrapping, GLenum filtering, glm::vec2 dimensions, GLint internalFormat, GLint format, GLenum type) const
 {
+	glDeleteTextures(1, texture);
 	glGenTextures(1, texture);
 	glBindTexture(GL_TEXTURE_2D, *texture);
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapping);
@@ -79,6 +176,10 @@ void SSAOPass::GenerateTexture(GLuint* texture, GLenum wrapping, GLenum filterin
 
 void SSAOPass::Draw(GLuint depthBuffer, Camera* camera)
 {
+	if (m_Quality == 0) {
+		return;
+	}
+
 	SSAOPassState state;
 	GLuint viewSpaceZPShaderHandle = m_SSAOViewSpaceZProgram->GetHandle();
 	GLuint SSAOShaderHandle = m_SSAOProgram->GetHandle();
@@ -98,6 +199,7 @@ void SSAOPass::Draw(GLuint depthBuffer, Camera* camera)
 		(-1.0f),
 		(+1.0f)
 		);*/
+	glViewport(0, 0, (m_Renderer->GetViewportSize().Width >> m_TextureQuality), (m_Renderer->GetViewportSize().Height >> m_TextureQuality)); //JOHAN TODO: Get this into state
 	glUniform3fv(glGetUniformLocation(viewSpaceZPShaderHandle, "ClipInfo"), 1, glm::value_ptr(clipInfo));
 
 	glBindVertexArray(m_ScreenQuad->VAO);
@@ -107,9 +209,9 @@ void SSAOPass::Draw(GLuint depthBuffer, Camera* camera)
 	
 	glm::vec4 projInfo = glm::vec4(
 		((1.0 - camera->ProjectionMatrix()[0][2]) / camera->ProjectionMatrix()[0][0]),
-		(-2.0 / (m_Renderer->GetViewportSize().Width * camera->ProjectionMatrix()[0][0])),
+		(-2.0 / ((m_Renderer->GetViewportSize().Width >> m_TextureQuality) * camera->ProjectionMatrix()[0][0])),
 		((1.0 + camera->ProjectionMatrix()[1][2]) / camera->ProjectionMatrix()[1][1]),
-		(-2.0 / (m_Renderer->GetViewportSize().Height * camera->ProjectionMatrix()[1][1]))
+		(-2.0 / ((m_Renderer->GetViewportSize().Height >> m_TextureQuality) * camera->ProjectionMatrix()[1][1]))
 		);
 
 
@@ -120,26 +222,76 @@ void SSAOPass::Draw(GLuint depthBuffer, Camera* camera)
 	glBindTexture(GL_TEXTURE_2D, m_SSAOViewSpaceZTexture);
 
 	// How many pixel there are in a 1m long object 1m away from the camera
-	glUniform1f(glGetUniformLocation(SSAOShaderHandle, "uProjScale"), m_Renderer->GetViewportSize().Height / (-2.0f * glm::tan(camera->FOV() * 0.5f)));
+	glUniform1f(glGetUniformLocation(SSAOShaderHandle, "uProjScale"), (m_Renderer->GetViewportSize().Height >> m_TextureQuality) / (-2.0f * glm::tan(camera->FOV() * 0.5f)));
 
 	glUniform1f(glGetUniformLocation(SSAOShaderHandle, "uRadius"), m_Radius);
 	glUniform1f(glGetUniformLocation(SSAOShaderHandle, "uBias"), m_Bias);
 	glUniform1f(glGetUniformLocation(SSAOShaderHandle, "uContrast"), m_Contrast);
 	glUniform1f(glGetUniformLocation(SSAOShaderHandle, "uIntensityScale"), m_IntensityScale);
 	glUniform1i(glGetUniformLocation(SSAOShaderHandle, "uNumOfSamples"), m_NumOfSamples);
-	glUniform1i(glGetUniformLocation(SSAOShaderHandle, "uNumOfTurns"), m_NumOfTurns);;
+	glUniform1i(glGetUniformLocation(SSAOShaderHandle, "uNumOfTurns"), m_NumOfTurns);
 
 	glUniform4fv(glGetUniformLocation(SSAOShaderHandle, "uProjInfo"), 1, glm::value_ptr(projInfo));
 	glDrawElementsBaseVertex(GL_TRIANGLES, m_ScreenQuad->MaterialGroups()[0].material->EndIndex - m_ScreenQuad->MaterialGroups()[0].material->StartIndex + 1
 		, GL_UNSIGNED_INT, 0, m_ScreenQuad->MaterialGroups()[0].material->StartIndex);
 
-	m_DrawBloomPass->ClearBuffer();
-	m_DrawBloomPass->Draw(m_SSAOTexture);
+	DrawBloomPassState BloomState;
+	GLuint shaderHandle_horiz = m_GaussianProgram_horiz->GetHandle();
+	GLuint shaderHandle_vert = m_GaussianProgram_vert->GetHandle();
+
+	m_GaussianFrameBuffer_horiz.Bind();
+	m_GaussianProgram_horiz->Bind();
+
+	glActiveTexture(GL_TEXTURE0);
+	glBindTexture(GL_TEXTURE_2D, m_SSAOTexture);
+
+	glBindVertexArray(m_ScreenQuad->VAO);
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_ScreenQuad->ElementBuffer);
+	glDrawElementsBaseVertex(GL_TRIANGLES, m_ScreenQuad->MaterialGroups()[0].material->EndIndex - m_ScreenQuad->MaterialGroups()[0].material->StartIndex + 1
+		, GL_UNSIGNED_INT, 0, m_ScreenQuad->MaterialGroups()[0].material->StartIndex);
+	//Iterate some times to make it more gaussian.
+	for (int i = 1; i < m_Iterations; i++) {
+		//Vertical pass
+		m_GaussianFrameBuffer_vert.Bind();
+		m_GaussianProgram_vert->Bind();
+
+		glBindTexture(GL_TEXTURE_2D, m_GaussianTexture_horiz);
+
+		glBindVertexArray(m_ScreenQuad->VAO);
+		glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_ScreenQuad->ElementBuffer);
+		glDrawElementsBaseVertex(GL_TRIANGLES, m_ScreenQuad->MaterialGroups()[0].material->EndIndex - m_ScreenQuad->MaterialGroups()[0].material->StartIndex + 1
+			, GL_UNSIGNED_INT, 0, m_ScreenQuad->MaterialGroups()[0].material->StartIndex);
+		//horizontal pass
+
+		m_GaussianFrameBuffer_horiz.Bind();
+		m_GaussianProgram_horiz->Bind();
+
+		glBindTexture(GL_TEXTURE_2D, m_GaussianTexture_vert);
+
+		glBindVertexArray(m_ScreenQuad->VAO);
+		glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_ScreenQuad->ElementBuffer);
+		glDrawElementsBaseVertex(GL_TRIANGLES, m_ScreenQuad->MaterialGroups()[0].material->EndIndex - m_ScreenQuad->MaterialGroups()[0].material->StartIndex + 1
+			, GL_UNSIGNED_INT, 0, m_ScreenQuad->MaterialGroups()[0].material->StartIndex);
+	}
+
+	//final vertical gaussian after the iterations are done
+
+	m_GaussianFrameBuffer_vert.Bind();
+	m_GaussianProgram_vert->Bind();
+
+	glBindTexture(GL_TEXTURE_2D, m_GaussianTexture_horiz);
+	glBindVertexArray(m_ScreenQuad->VAO);
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_ScreenQuad->ElementBuffer);
+	glDrawElementsBaseVertex(GL_TRIANGLES, m_ScreenQuad->MaterialGroups()[0].material->EndIndex - m_ScreenQuad->MaterialGroups()[0].material->StartIndex + 1
+		, GL_UNSIGNED_INT, 0, m_ScreenQuad->MaterialGroups()[0].material->StartIndex);
+
+	glViewport(0, 0, (m_Renderer->GetViewportSize().Width), (m_Renderer->GetViewportSize().Height));
 }
 
 void SSAOPass::OnWindowResize() {
-	m_DrawBloomPass->OnWindowResize();
+	if (m_Quality == 0) {
+		return;
+	}
+
 	InitializeTexture();
-	m_SSAOFramBuffer.Generate();
-	m_SSAOViewSpaceZFramBuffer.Generate();
 }