Base classes for decoupled forward+ renderer and a fix where if you had to many lights in a tile(200-300+) the list would fill up before the end of frustums.

include/Engine/Rendering/LightCullingPass.h

@@ -0,0 +1,28 @@
+#ifndef LightCullingPass_h__
+#define LightCullingPass_h__
+
+#include "IRenderer.h"
+#include "LightCullingPassState.h"
+#include "ShaderProgram.h"
+
+
+class LightCullingPass
+{
+public:
+    LightCullingPass();
+    ~LightCullingPass();
+
+
+    void GenerateNewFrustum();
+private:
+    void CullLights();
+
+    void InitializeTextures();
+    void InitializeSSBOs();
+    void InitializeShaderPrograms();
+
+
+};
+
+
+#endif

resources/Shaders/cullLights.comp.glsl

@@ -8,7 +8,7 @@
 
 
 
-#define MAX_LIGHTS_PER_TILE 1024
+#define MAX_LIGHTS_PER_TILE 200
 #define NUM_TILES 3600
 #define TILE_SIZE 16
 

src/Engine/Rendering/Renderer.cpp

@@ -218,8 +218,6 @@ void Renderer::InitializeSSBOs()
     glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
     GLERROR("m_LightSSBO");
 
-
-
     glGenBuffers(1, &m_LightGridSSBO);
     glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_LightGridSSBO);
     glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_LightGrid), &m_LightGrid, GL_DYNAMIC_COPY);
@@ -233,7 +231,6 @@ void Renderer::InitializeSSBOs()
     glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
     GLERROR("m_LightOffsetSSBO");
 
-
     glGenBuffers(1, &m_LightIndexSSBO);
     glBindBuffer(GL_SHADER_STORAGE_BUFFER, m_LightIndexSSBO);
     glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_LightIndex), &m_LightIndex, GL_DYNAMIC_COPY);
@@ -254,8 +251,6 @@ void Renderer::CalculateFrustum()
 
     m_CalculateFrustumProgram->Bind();
     
-
-
     glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, m_FrustumSSBO);
     glUniformMatrix4fv(glGetUniformLocation(m_CalculateFrustumProgram->GetHandle(), "P"), 1, false, glm::value_ptr(m_Camera->ProjectionMatrix()));
     glUniform2f(glGetUniformLocation(m_CalculateFrustumProgram->GetHandle(), "ScreenDimensions"), m_Resolution.Width, m_Resolution.Height);
@@ -284,7 +279,6 @@ void Renderer::CullLights()
     glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(m_LightOffset), &m_LightOffset, GL_DYNAMIC_COPY);
     glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
 
-
     m_LightCullProgram->Bind();
     glUniformMatrix4fv(glGetUniformLocation(m_LightCullProgram->GetHandle(), "V"), 1, false, glm::value_ptr(m_Camera->ViewMatrix()));
     glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, m_FrustumSSBO);