WIP

DrawScreenQuad implemented and working.
Started work on HDR coloring.

include/Engine/Rendering/DrawBloomEffect.h

@@ -0,0 +1,38 @@
+#ifndef DrawFinalPass_h__
+#define DrawFinalPass_h__
+
+#include "IRenderer.h"
+#include "DrawFinalPassState.h"
+#include "LightCullingPass.h"
+#include "FrameBuffer.h"
+#include "ShaderProgram.h"
+#include "Util/UnorderedMapVec2.h"
+#include "Texture.h"
+
+class DrawFinalPass
+{
+public:
+    DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCullingPass);
+    ~DrawFinalPass() { }
+    void InitializeTextures();
+    void InitializeFrameBuffers();
+    void InitializeShaderPrograms();
+
+    void Draw(RenderScene& scene);
+
+    //Getters
+
+
+private:
+    void GenerateTexture(GLuint* texture, GLenum wrapping, GLenum filtering, glm::vec2 dimensions, GLint internalFormat, GLint format, GLenum type) const;
+
+    Texture* m_WhiteTexture;
+
+    const IRenderer* m_Renderer;
+    const LightCullingPass* m_LightCullingPass;
+
+    ShaderProgram* m_ForwardPlusProgram;
+
+};
+
+#endif 

include/Engine/Rendering/DrawFinalPass.h

@@ -17,11 +17,13 @@ public:
     void InitializeTextures();
     void InitializeFrameBuffers();
     void InitializeShaderPrograms();
-
     void Draw(RenderScene& scene);
 
-    //Getters
+    //Todo: Should not be public
-
+    FrameBuffer m_BloomFrameBuffer;
+    GLuint m_BloomTexture;
+    GLuint m_SceneTexture;
+    GLuint m_DepthBuffer;
 
 private:
     void GenerateTexture(GLuint* texture, GLenum wrapping, GLenum filtering, glm::vec2 dimensions, GLint internalFormat, GLint format, GLenum type) const;
@@ -32,7 +34,6 @@ private:
     const LightCullingPass* m_LightCullingPass;
 
     ShaderProgram* m_ForwardPlusProgram;
-
 };
 
 #endif 

include/Engine/Rendering/DrawScreenQuadPass.h

@@ -0,0 +1,28 @@
+#ifndef DrawScreenQuadPass_h__
+#define DrawScreenQuadPass_h__
+
+#include "IRenderer.h"
+#include "DrawScreenQuadPassState.h"
+#include "FrameBuffer.h"
+#include "ShaderProgram.h"
+//#include "Util/UnorderedMapVec2.h"
+#include "Texture.h"
+
+class DrawScreenQuadPass
+{
+public:
+    DrawScreenQuadPass(IRenderer* renderer);
+    ~DrawScreenQuadPass() { }
+    void InitializeFrameBuffers();
+    void InitializeShaderPrograms();
+
+    void Draw(GLuint texture);
+private:
+    const IRenderer* m_Renderer;
+
+    ShaderProgram* m_DrawQuadProgram;
+
+    Model* m_ScreenQuad;
+};
+
+#endif 

include/Engine/Rendering/DrawScreenQuadPassState.h

@@ -0,0 +1,15 @@
+#ifndef DrawScreenQuadPassState_h__
+#define DrawScreenQuadPassState_h__
+
+#include "Rendering/RenderState.h"
+
+class DrawScreenQuadPassState : public RenderState
+{
+public:
+    DrawScreenQuadPassState();
+    ~DrawScreenQuadPassState();
+private:
+
+};
+
+#endif

include/Engine/Rendering/Renderer.h

@@ -14,6 +14,7 @@
 #include "DrawScenePass.h"
 #include "LightCullingPass.h"
 #include "DrawFinalPass.h"
+#include "DrawScreenQuadPass.h"
 #include "../Core/EventBroker.h"
 #include "ImGuiRenderPass.h"
 #include "Camera.h"
@@ -48,6 +49,7 @@ private:
     LightCullingPass* m_LightCullingPass;
     ImGuiRenderPass* m_ImGuiRenderPass;
     DrawFinalPass* m_DrawFinalPass;
+    DrawScreenQuadPass* m_DrawScreenQuadPass;
 
     //----------------------Functions----------------------//
     void InitializeWindow();
@@ -57,14 +59,13 @@ private:
     //TODO: Renderer: Get InputUpdate out of renderer
     void InputUpdate(double dt);
     //void PickingPass(RenderQueueCollection& rq);
-    void DrawScreenQuad(GLuint textureToDraw);
+    //void DrawScreenQuad(GLuint textureToDraw);
 
     static bool DepthSort(const std::shared_ptr<RenderJob> &i, const std::shared_ptr<RenderJob> &j) { return (i->Depth < j->Depth); }
     void SortRenderJobsByDepth(RenderScene &scene);
     void GenerateTexture(GLuint* texture, GLenum wrapping, GLenum filtering, glm::vec2 dimensions, GLint internalFormat, GLint format, GLenum type);
 	//--------------------ShaderPrograms-------------------//
-	ShaderProgram* m_BasicForwardProgram;
+    ShaderProgram* m_BasicForwardProgram;
-    ShaderProgram* m_DrawScreenQuadProgram;
 };
 
 #endif

resources/Shaders/ForwardPlus.frag.glsl

@@ -48,7 +48,8 @@ in VertexData{
 	vec4 DiffuseColor;
 }Input;
 
-out vec4 fragmentColor;
+out vec4 sceneColor;
+out vec4 bloomColor;
 
 vec4 scene_ambient = vec4(0.3,0.3,0.3,1);
 
@@ -121,6 +122,7 @@ void main()
 		LightSource light = LightSources.List[l];
 
 		LightResult result;
+		//These if statements should be removed.
 		if(light.Type == 1) { // point
 			result = CalcPointLightSource(V * light.Position, light.Radius, light.Color, light.Intensity, viewVec, position, normal, light.Falloff);
 		} else if (light.Type == 2) { //Directional
@@ -131,19 +133,29 @@ void main()
 	}
 
 
-	//fragmentColor += Input.DiffuseColor;
+	//sceneColor += Input.DiffuseColor;
-	fragmentColor += Input.DiffuseColor * (totalLighting.Diffuse + totalLighting.Specular) * texel * Color;
+	vec4 fragment = Input.DiffuseColor * (totalLighting.Diffuse + totalLighting.Specular) * texel * Color;
-	//fragmentColor += Input.DiffuseColor * (totalLighting.Diffuse) * texel * Color;
+	bloomColor = vec4(0.3, 0.8, 0.6, 1.0);
-	//fragmentColor += Input.DiffuseColor + vec4(0.0, LightGrids.Data[currentTile].Amount/3, 0, 1);
+	sceneColor = vec4(fragment.xyz, 1.0);
-	//fragmentColor = texel * Input.DiffuseColor * Color;
+	//These if statements should be removed.
-	//fragmentColor += vec4(currentTile/3600.f, 0, 0, 1);
+/*
+	if(fragment.x > 0.5 || fragment.y > 0.5 || fragment.z > 0.5) {
+		bloomColor = fragment;
+	} else {
+		bloomColor = vec4(0.3, 0.5, 0.8, 1.0);
+	}*/
+	
+	//sceneColor += Input.DiffuseColor * (totalLighting.Diffuse) * texel * Color;
+	//sceneColor += Input.DiffuseColor + vec4(0.0, LightGrids.Data[currentTile].Amount/3, 0, 1);
+	//sceneColor = texel * Input.DiffuseColor * Color;
+	//sceneColor += vec4(currentTile/3600.f, 0, 0, 1);
 
 	//Tiled Debug Code
 	/*
 	if(int(gl_FragCoord.x)%16 == 0 || int(gl_FragCoord.y)%16 == 0 ) {
-		fragmentColor += vec4(0.5, 0, 0, 0);
+		sceneColor += vec4(0.5, 0, 0, 0);
 	} else {
-		fragmentColor += vec4(LightGrids.Data[int(tilePos.x + tilePos.y*80)].Amount/LightSources.List.length(), 0, 0, 1);
+		sceneColor += vec4(LightGrids.Data[int(tilePos.x + tilePos.y*80)].Amount/LightSources.List.length(), 0, 0, 1);
 	}
 	*/
 }

src/Engine/Rendering/DrawBloomEffect.cpp

@@ -0,0 +1,66 @@
+#include "Rendering/DrawFinalPass.h"
+
+DrawFinalPass::DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCullingPass)
+{
+    m_Renderer = renderer;
+    m_LightCullingPass = lightCullingPass;
+    InitializeTextures();
+    InitializeShaderPrograms();
+}
+
+void DrawFinalPass::InitializeTextures()
+{
+    m_WhiteTexture = ResourceManager::Load<Texture>("Textures/Core/Blank.png");
+}
+
+void DrawFinalPass::InitializeShaderPrograms()
+{
+    m_ForwardPlusProgram = ResourceManager::Load<ShaderProgram>("#ForwardPlusProgram");
+    m_ForwardPlusProgram->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/ForwardPlus.vert.glsl")));
+    m_ForwardPlusProgram->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/ForwardPlus.frag.glsl")));
+    m_ForwardPlusProgram->Compile();
+    m_ForwardPlusProgram->Link();
+}
+
+void DrawFinalPass::Draw(RenderScene& scene)
+{
+    GLERROR("DrawFinalPass::Draw: Pre");
+
+    DrawFinalPassState state;
+    m_ForwardPlusProgram->Bind();
+    GLuint shaderHandle = m_ForwardPlusProgram->GetHandle();
+
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, m_LightCullingPass->LightSSBO());
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, m_LightCullingPass->LightGridSSBO());
+    glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 4, m_LightCullingPass->LightIndexSSBO());
+
+    glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "V"), 1, GL_FALSE, glm::value_ptr(m_Renderer->Camera()->ViewMatrix()));
+    glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "P"), 1, GL_FALSE, glm::value_ptr(m_Renderer->Camera()->ProjectionMatrix()));
+    glUniform2f(glGetUniformLocation(shaderHandle, "ScreenDimensions"), m_Renderer->Resolution().Width, m_Renderer->Resolution().Height);
+
+    //TODO: Render: Add code for more jobs than modeljobs.
+    for (auto &job : scene.ForwardJobs) {
+        auto modelJob = std::dynamic_pointer_cast<ModelJob>(job);
+        if(modelJob) {
+            //TODO: Kolla upp "header/include/common" shader saken så man slipper skicka in asmycket uniforms
+            glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "M"), 1, GL_FALSE, glm::value_ptr(modelJob->Matrix));
+            glUniform4fv(glGetUniformLocation(shaderHandle, "Color"), 1, glm::value_ptr(modelJob->Color));
+
+            if(modelJob->DiffuseTexture != nullptr) {
+                glActiveTexture(GL_TEXTURE0);
+                glBindTexture(GL_TEXTURE_2D, modelJob->DiffuseTexture->m_Texture);
+            } else {
+                glActiveTexture(GL_TEXTURE0);
+                glBindTexture(GL_TEXTURE_2D, m_WhiteTexture->m_Texture);
+            }
+
+            glBindVertexArray(modelJob->Model->VAO);
+            glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, modelJob->Model->ElementBuffer);
+            glDrawElementsBaseVertex(GL_TRIANGLES, modelJob->EndIndex - modelJob->StartIndex + 1, GL_UNSIGNED_INT, 0, modelJob->StartIndex);
+
+            continue;
+        }
+    }
+    GLERROR("DrawFinalPass::Draw: END");
+
+}

src/Engine/Rendering/DrawFinalPass.cpp

@@ -6,6 +6,7 @@ DrawFinalPass::DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCulling
     m_LightCullingPass = lightCullingPass;
     InitializeTextures();
     InitializeShaderPrograms();
+    InitializeFrameBuffers();
 }
 
 void DrawFinalPass::InitializeTextures()
@@ -13,6 +14,21 @@ void DrawFinalPass::InitializeTextures()
     m_WhiteTexture = ResourceManager::Load<Texture>("Textures/Core/Blank.png");
 }
 
+void DrawFinalPass::InitializeFrameBuffers()
+{
+    glGenRenderbuffers(1, &m_DepthBuffer);
+    glBindRenderbuffer(GL_RENDERBUFFER, m_DepthBuffer);
+    glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, m_Renderer->Resolution().Width, m_Renderer->Resolution().Height);
+
+    GenerateTexture(&m_SceneTexture, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->Resolution().Width, m_Renderer->Resolution().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
+    GenerateTexture(&m_BloomTexture, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->Resolution().Width, m_Renderer->Resolution().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
+    
+    m_BloomFrameBuffer.AddResource(std::shared_ptr<BufferResource>(new RenderBuffer(&m_DepthBuffer, GL_DEPTH_ATTACHMENT)));
+    m_BloomFrameBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_SceneTexture, GL_COLOR_ATTACHMENT0)));
+    m_BloomFrameBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_BloomTexture, GL_COLOR_ATTACHMENT1)));
+    m_BloomFrameBuffer.Generate();
+}
+
 void DrawFinalPass::InitializeShaderPrograms()
 {
     m_ForwardPlusProgram = ResourceManager::Load<ShaderProgram>("#ForwardPlusProgram");
@@ -26,6 +42,8 @@ void DrawFinalPass::Draw(RenderScene& scene)
 {
     GLERROR("DrawFinalPass::Draw: Pre");
 
+    m_BloomFrameBuffer.Bind(); //in i state
+
     DrawFinalPassState state;
     m_ForwardPlusProgram->Bind();
     GLuint shaderHandle = m_ForwardPlusProgram->GetHandle();
@@ -64,3 +82,15 @@ void DrawFinalPass::Draw(RenderScene& scene)
     GLERROR("DrawFinalPass::Draw: END");
 
 }
+
+void DrawFinalPass::GenerateTexture(GLuint* texture, GLenum wrapping, GLenum filtering, glm::vec2 dimensions, GLint internalFormat, GLint format, GLenum type) const
+{
+    glGenTextures(1, texture);
+    glBindTexture(GL_TEXTURE_2D, *texture);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapping);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapping);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filtering);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filtering);
+    glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, dimensions.x, dimensions.y, 0, format, type, nullptr);//TODO: Renderer: Fix the precision and Resolution
+    GLERROR("Texture initialization failed");
+}

src/Engine/Rendering/DrawFinalPassState.cpp

@@ -3,7 +3,7 @@
 
 DrawFinalPassState::DrawFinalPassState()
 {
-    BindFramebuffer(0);
+    //BindFramebuffer(0);
     Enable(GL_BLEND);
     BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
     Enable(GL_DEPTH_TEST);

src/Engine/Rendering/DrawScreenQuadPass.cpp

@@ -0,0 +1,36 @@
+#include "Rendering/DrawScreenQuadPass.h"
+
+DrawScreenQuadPass::DrawScreenQuadPass(IRenderer* renderer)
+{
+    m_Renderer = renderer;
+
+    m_ScreenQuad = ResourceManager::Load<Model>("Models/Core/ScreenQuad.obj");
+
+    InitializeShaderPrograms();
+}
+
+void DrawScreenQuadPass::InitializeShaderPrograms()
+{
+    m_DrawQuadProgram = ResourceManager::Load<ShaderProgram>("#DrawScreenQuadProgram");
+    m_DrawQuadProgram->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/DrawScreenQuad.vert.glsl")));
+    m_DrawQuadProgram->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/DrawScreenQuad.frag.glsl")));
+    m_DrawQuadProgram->Compile();
+    m_DrawQuadProgram->Link();
+}
+
+void DrawScreenQuadPass::Draw(GLuint texture)
+{
+    //glBindFramebuffer(GL_FRAMEBUFFER, 0);
+    GLERROR("DrawScreenQuadPass::Draw: Pre");
+
+    DrawScreenQuadPassState state = DrawScreenQuadPassState();
+    m_DrawQuadProgram->Bind();
+
+    glActiveTexture(GL_TEXTURE0);
+    glBindTexture(GL_TEXTURE_2D, texture);
+
+    glBindVertexArray(m_ScreenQuad->VAO);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_ScreenQuad->ElementBuffer);
+    glDrawElementsBaseVertex(GL_TRIANGLES, m_ScreenQuad->MaterialGroups()[0].EndIndex - m_ScreenQuad->MaterialGroups()[0].StartIndex +1
+        , GL_UNSIGNED_INT, 0, m_ScreenQuad->MaterialGroups()[0].StartIndex);
+}

src/Engine/Rendering/DrawScreenQuadPassState.cpp

@@ -0,0 +1,20 @@
+#include "Rendering/DrawScreenQuadPassState.h"
+
+
+DrawScreenQuadPassState::DrawScreenQuadPassState()
+{
+    GLERROR("---");
+    BindFramebuffer(0);
+    GLERROR("---");
+    Disable(GL_DEPTH_TEST);
+    Disable(GL_CULL_FACE);
+    Disable(GL_BLEND);
+    glClearColor(0.f, 0.f, 0.f, 1.f);
+   // ClearColor(glm::vec4(255.f / 255, 163.f / 255, 176.f / 255, 0.f));
+    Clear(GL_COLOR_BUFFER_BIT);
+}
+
+DrawScreenQuadPassState::~DrawScreenQuadPassState()
+{
+
+}

src/Engine/Rendering/FrameBuffer.cpp

@@ -55,8 +55,9 @@ void FrameBuffer::Generate()
             glFramebufferRenderbuffer(GL_FRAMEBUFFER, (*it)->m_Attachment, (*it)->m_ResourceType, *(*it)->m_ResourceHandle);
             GLERROR("FrameBuffer generate: glFramebufferRenderbuffer");
             if ( (*it)->m_Attachment != GL_COLOR_ATTACHMENT0 ||
+                (*it)->m_Attachment != GL_COLOR_ATTACHMENT1 ||
                 (*it)->m_Attachment != GL_DEPTH_ATTACHMENT ||
-                (*it)->m_Attachment != GL_STENCIL_ATTACHMENT)
+                (*it)->m_Attachment != GL_STENCIL_ATTACHMENT) //TODO: Viktor: Fixa detta
             {
                 LOG_ERROR("RenderBuffer Attachment not valid.");
             }

src/Engine/Rendering/PickingPass.cpp

@@ -46,15 +46,12 @@ void PickingPass::InitializeShaderPrograms()
 void PickingPass::Draw(RenderScene& scene)
 {
     PickingPassState* state = new PickingPassState(m_PickingBuffer.GetHandle());
-
     
     //TODO: Render: Add code for more jobs than modeljobs.
 
     GLuint ShaderHandle = m_PickingProgram->GetHandle();
     m_PickingProgram->Bind();
 
-    
-
         m_Camera = scene.Camera;
 
         for (auto &job : scene.ForwardJobs) {
@@ -95,11 +92,9 @@ void PickingPass::Draw(RenderScene& scene)
             }
         }
     
-    
     m_PickingBuffer.Unbind();
     GLERROR("PickingPass Error");
 
-
     delete state;
 }
 

src/Engine/Rendering/Renderer.cpp

@@ -69,12 +69,6 @@ void Renderer::InitializeWindow()
 void Renderer::InitializeShaders()
 {
     m_BasicForwardProgram = ResourceManager::Load<ShaderProgram>("#m_BasicForwardProgram");
-
-    m_DrawScreenQuadProgram = ResourceManager::Load<ShaderProgram>("#DrawScreenQuadProgram");
-    m_DrawScreenQuadProgram->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/DrawScreenQuad.vert.glsl")));
-    m_DrawScreenQuadProgram->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/DrawScreenQuad.frag.glsl")));
-    m_DrawScreenQuadProgram->Compile();
-    m_DrawScreenQuadProgram->Link();
 }
 
 void Renderer::InputUpdate(double dt)
@@ -105,6 +99,8 @@ void Renderer::Draw(RenderFrame& frame)
         m_LightCullingPass->FillLightList(*scene);
         m_LightCullingPass->CullLights(*scene);
         m_DrawFinalPass->Draw(*scene);
+        m_DrawScreenQuadPass->Draw(m_DrawFinalPass->m_SceneTexture);
+        //m_DrawScreenQuadPass->Draw(m_DrawFinalPass->m_BloomTexture);
         //m_DrawScenePass->Draw(rq);
 
         GLERROR("Renderer::Draw m_DrawScenePass->Draw");
@@ -119,27 +115,6 @@ PickData Renderer::Pick(glm::vec2 screenCoord)
     return m_PickingPass->Pick(screenCoord);
 }
 
-void Renderer::DrawScreenQuad(GLuint textureToDraw)
-{
-    glBindFramebuffer(GL_FRAMEBUFFER, 0);
-
-    glDisable(GL_DEPTH_TEST);
-    glDisable(GL_CULL_FACE);
-
-    glClearColor(0.f, 0.f, 0.f, 1.f);
-    glClear(GL_COLOR_BUFFER_BIT);
-
-
-    m_DrawScreenQuadProgram->Bind();
-    glActiveTexture(GL_TEXTURE0);
-    glBindTexture(GL_TEXTURE_2D, textureToDraw);
-
-    glBindVertexArray(m_ScreenQuad->VAO);
-    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_ScreenQuad->ElementBuffer);
-    glDrawElementsBaseVertex(GL_TRIANGLES, m_ScreenQuad->MaterialGroups()[0].EndIndex - m_ScreenQuad->MaterialGroups()[0].StartIndex +1
-        , GL_UNSIGNED_INT, 0, m_ScreenQuad->MaterialGroups()[0].StartIndex);
-}
-
 void Renderer::InitializeTextures()
 {
     m_ErrorTexture = ResourceManager::Load<Texture>("Textures/Core/ErrorTexture.png");
@@ -171,4 +146,5 @@ void Renderer::InitializeRenderPasses()
     m_PickingPass = new PickingPass(this, m_EventBroker);
     m_LightCullingPass = new LightCullingPass(this);
     m_DrawFinalPass = new DrawFinalPass(this, m_LightCullingPass);
+    m_DrawScreenQuadPass = new DrawScreenQuadPass(this);
 }