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Tleety
2016-03-07 23:25:06 +01:00
parent 7de95d4cb5
commit 5c0d9070c7
11 changed files with 421 additions and 5 deletions
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src/Engine/Rendering/BlurHUD.cpp
+280
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@@ -0,0 +1,280 @@
#include "Rendering/BlurHUD.h"
BlurHUD::BlurHUD(IRenderer* renderer)
: m_Renderer(renderer)
{
InitializeShaderPrograms();
InitializeBuffers();
InitializeTextures();
}
void BlurHUD::InitializeTextures()
{
m_BlackTexture = CommonFunctions::LoadTexture("Textures/Core/Black.png", false);
m_ScreenQuad = ResourceManager::Load<Model>("Models/Core/ScreenQuad.mesh");
}
void BlurHUD::InitializeShaderPrograms()
{
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->BindFragDataLocation(0, "fragmentColor");
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->BindFragDataLocation(0, "fragmentColor");
m_GaussianProgram_vert->Link();
}
m_FillDepthStencilProgram = ResourceManager::Load<ShaderProgram>("#FillDepthStencilProgram");
if (m_FillDepthStencilProgram->GetHandle() == 0) {
m_FillDepthStencilProgram->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/FillDepthBuffer.vert.glsl")));
m_FillDepthStencilProgram->Compile();
m_FillDepthStencilProgram->Link();
}
m_CombineTexturesProgram = ResourceManager::Load<ShaderProgram>("#CombineTexturesProgram");
if (m_CombineTexturesProgram->GetHandle() == 0) {
m_CombineTexturesProgram->AddShader(std::shared_ptr<Shader>(new VertexShader("Shaders/CombineTexture.vert.glsl")));
m_CombineTexturesProgram->AddShader(std::shared_ptr<Shader>(new FragmentShader("Shaders/CombineTexture.frag.glsl")));
m_CombineTexturesProgram->Compile();
m_CombineTexturesProgram->BindFragDataLocation(0, "fragmentColor");
m_CombineTexturesProgram->Link();
}
GLERROR("Creating DepthFill program");
}
void BlurHUD::InitializeBuffers()
{
glm::vec2 res = glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height);
CommonFunctions::GenerateTexture(&m_DepthStencil_horiz, GL_CLAMP_TO_BORDER, GL_NEAREST,
res, GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8);
CommonFunctions::GenerateTexture(&m_GaussianTexture_horiz, GL_CLAMP_TO_EDGE, GL_LINEAR,
res, GL_RGB16F, GL_RGB, GL_FLOAT);
if (m_GaussianFrameBuffer_horiz.GetHandle() == 0) {
m_GaussianFrameBuffer_horiz.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_DepthStencil_horiz, GL_DEPTH_STENCIL_ATTACHMENT)));
m_GaussianFrameBuffer_horiz.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_GaussianTexture_horiz, GL_COLOR_ATTACHMENT0)));
}
m_GaussianFrameBuffer_horiz.Generate();
CommonFunctions::GenerateTexture(&m_DepthStencil_vert, GL_CLAMP_TO_BORDER, GL_NEAREST,
res, GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8);
CommonFunctions::GenerateTexture(&m_GaussianTexture_vert, GL_CLAMP_TO_EDGE, GL_LINEAR,
res, GL_RGB16F, GL_RGB, GL_FLOAT);
if (m_GaussianFrameBuffer_vert.GetHandle() == 0) {
m_GaussianFrameBuffer_vert.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_DepthStencil_vert, GL_DEPTH_STENCIL_ATTACHMENT)));
m_GaussianFrameBuffer_vert.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_GaussianTexture_vert, GL_COLOR_ATTACHMENT0)));
}
m_GaussianFrameBuffer_vert.Generate();
CommonFunctions::GenerateTexture(&m_CombinedTexture, GL_CLAMP_TO_BORDER, GL_NEAREST,
res, GL_RGB16F, GL_RGB, GL_FLOAT);
if (m_CombinedTextureBuffer.GetHandle() == 0) {
m_CombinedTextureBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_CombinedTexture, GL_COLOR_ATTACHMENT0)));
}
m_CombinedTextureBuffer.Generate();
}
void BlurHUD::ClearBuffer()
{
GLERROR("PRE");
m_GaussianFrameBuffer_horiz.Bind();
glClearColor(0.f, 0.f, 0.f, 0.f);
glClearStencil(0x00);
glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
m_GaussianFrameBuffer_horiz.Unbind();
m_GaussianFrameBuffer_vert.Bind();
glClearColor(0.f, 0.f, 0.f, 0.f);
glClearStencil(0x00);
glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
m_GaussianFrameBuffer_vert.Unbind();
m_CombinedTextureBuffer.Bind();
glClearColor(0.f, 0.f, 0.f, 0.f);
glClear(GL_COLOR_BUFFER_BIT);
m_CombinedTextureBuffer.Unbind();
GLERROR("END");
}
//Returns the finished blurred texture
GLuint BlurHUD::Draw(GLuint texture, RenderScene& scene)
{
GLERROR("DrawBloomPass::Draw: Pre");
FillStencil(scene);
DrawBloomPassState state;
GLuint shaderHandle_horiz = m_GaussianProgram_horiz->GetHandle();
GLuint shaderHandle_vert = m_GaussianProgram_vert->GetHandle();
//Horizontal pass, first use the given texture then save it to the horizontal framebuffer.
m_GaussianFrameBuffer_horiz.Bind();
state.Enable(GL_STENCIL_TEST);
state.StencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
state.StencilFunc(GL_EQUAL, 1, 0xFF);
state.StencilMask(0x00);
state.DepthMask(GL_FALSE);
m_GaussianProgram_horiz->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].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();
state.Enable(GL_STENCIL_TEST);
state.StencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
state.StencilFunc(GL_EQUAL, 1, 0xFF);
state.StencilMask(0x00);
state.DepthMask(GL_FALSE);
m_GaussianProgram_vert->Bind();
glActiveTexture(GL_TEXTURE0);
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_vert.Unbind();
m_GaussianFrameBuffer_horiz.Bind();
state.Enable(GL_STENCIL_TEST);
state.StencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
state.StencilFunc(GL_EQUAL, 1, 0xFF);
state.StencilMask(0x00);
state.DepthMask(GL_FALSE);
m_GaussianProgram_horiz->Bind();
glActiveTexture(GL_TEXTURE0);
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);
m_GaussianFrameBuffer_horiz.Unbind();
}
//final vertical gaussian after the iterations are done
m_GaussianFrameBuffer_vert.Bind();
state.Enable(GL_STENCIL_TEST);
state.StencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
state.StencilFunc(GL_EQUAL, 1, 0xFF);
state.StencilMask(0x00);
state.DepthMask(GL_FALSE);
m_GaussianProgram_vert->Bind();
glActiveTexture(GL_TEXTURE0);
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);
GLERROR("DrawBloomPass::Draw: END");
return m_GaussianTexture_vert;
}
void BlurHUD::OnWindowResize()
{
CommonFunctions::GenerateTexture(&m_GaussianTexture_vert, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
m_GaussianFrameBuffer_vert.Generate();
CommonFunctions::GenerateTexture(&m_GaussianTexture_horiz, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
m_GaussianFrameBuffer_horiz.Generate();
}
void BlurHUD::FillStencil(RenderScene& scene)
{
RenderState state;
state.BindFramebuffer(m_GaussianFrameBuffer_horiz.GetHandle());
state.Disable(GL_DEPTH_TEST);
state.Enable(GL_CULL_FACE);
state.Enable(GL_STENCIL_TEST);
state.StencilFunc(GL_ALWAYS, 1, 0xFF);
state.StencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
state.StencilMask(0xFF);
m_FillDepthStencilProgram->Bind();
GLuint shaderHandle = m_FillDepthStencilProgram->GetHandle();
glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "V"), 1, GL_FALSE, glm::value_ptr(scene.Camera->ViewMatrix()));
glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "P"), 1, GL_FALSE, glm::value_ptr(scene.Camera->ProjectionMatrix()));
for (auto& job : scene.Jobs.SpriteJob) {
auto spriteJob = std::dynamic_pointer_cast<SpriteJob>(job);
if (!spriteJob) {
continue;
}
if (!spriteJob->BlurBackground) {
continue;
}
glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "M"), 1, GL_FALSE, glm::value_ptr(spriteJob->Matrix));
glBindVertexArray(spriteJob->Model->VAO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, spriteJob->Model->ElementBuffer);
glDrawElements(GL_TRIANGLES, spriteJob->EndIndex - spriteJob->StartIndex + 1, GL_UNSIGNED_INT, (void*)(spriteJob->StartIndex*sizeof(unsigned int)));
}
state.BindFramebuffer(m_GaussianFrameBuffer_vert.GetHandle());
for (auto& job : scene.Jobs.SpriteJob) {
auto spriteJob = std::dynamic_pointer_cast<SpriteJob>(job);
if (!spriteJob) {
continue;
}
if(!spriteJob->BlurBackground) {
continue;
}
glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "M"), 1, GL_FALSE, glm::value_ptr(spriteJob->Matrix));
glBindVertexArray(spriteJob->Model->VAO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, spriteJob->Model->ElementBuffer);
glDrawElements(GL_TRIANGLES, spriteJob->EndIndex - spriteJob->StartIndex + 1, GL_UNSIGNED_INT, (void*)(spriteJob->StartIndex*sizeof(unsigned int)));
}
}
//Texture 1 will be used if texture 2 is black at that texel, else texture 2 is used.
GLuint BlurHUD::CombineTextures(GLuint texture1, GLuint texture2)
{
RenderState state;
state.BindFramebuffer(m_CombinedTextureBuffer.GetHandle());
state.Disable(GL_DEPTH_TEST);
state.Disable(GL_STENCIL_TEST);
m_CombineTexturesProgram->Bind();
glActiveTexture(GL_TEXTURE0);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, texture1);
glBindTexture(GL_TEXTURE_2D, texture2);
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);
return m_CombinedTexture;
}
src/Engine/Rendering/DrawFinalPass.cpp
+6 -1
View File
@@ -233,7 +233,7 @@ void DrawFinalPass::InitializeShaderPrograms()
}
void DrawFinalPass::Draw(RenderScene& scene)
void DrawFinalPass::Draw(RenderScene& scene, BlurHUD* blurHUDPass)
{
GLERROR("Pre");
DrawFinalPassState* stateDethp = new DrawFinalPassState(m_ShieldDepthFrameBuffer.GetHandle());
@@ -280,6 +280,11 @@ void DrawFinalPass::Draw(RenderScene& scene)
DrawModelRenderQueuesWithShieldCheck(scene.Jobs.TransparentObjects, scene); //might need changing
GLERROR("Shielded Transparent objects");
//Generate blur texture.
m_FullBlurredTexture = blurHUDPass->Draw(m_SceneTexture, scene);
//Combine nonblur and blur texture
m_CombinedTexture = blurHUDPass->CombineTextures(m_SceneTexture, m_FullBlurredTexture);
//Draw Transparen objects
//state->BlendFunc(GL_ONE, GL_ONE);
//state->StencilFunc(GL_EQUAL, 1, 0xFF);
src/Engine/Rendering/Renderer.cpp
+11 -3
View File
@@ -110,7 +110,7 @@ void Renderer::Draw(RenderFrame& frame)
{
GLERROR("PRE");
glBindFramebuffer(GL_FRAMEBUFFER, 0);
ImGui::Combo("Draw textures", &m_DebugTextureToDraw, "Final\0Scene\0Bloom\0Gaussian\0Picking\0Ambient Occlusion");
ImGui::Combo("Draw textures", &m_DebugTextureToDraw, "Final\0Scene\0Bloom\0Gaussian\0Picking\0Ambient Occlusion\0Combined Scene Texture\0Full Blurred Texture");
ImGui::Combo("CubeMap", &m_CubeMapTexture, "Nevada(512)\0Sky(1024)");
if(m_CubeMapTexture == 0) {
m_CubeMapPass->LoadTextures("Nevada");
@@ -133,6 +133,7 @@ void Renderer::Draw(RenderFrame& frame)
m_DrawFinalPass->ClearBuffer();
m_DrawBloomPass->ClearBuffer();
m_SSAOPass->ClearBuffer();
m_BlurHUDPass->ClearBuffer();
PerformanceTimer::StopTimer("Renderer-ClearBuffers");
GLERROR("ClearBuffers");
for (auto scene : frame.RenderScenes) {
@@ -158,7 +159,7 @@ void Renderer::Draw(RenderFrame& frame)
m_LightCullingPass->CullLights(*scene);
GLERROR("LightCulling");
PerformanceTimer::StartTimerAndStopPrevious("Renderer-Draw Geometry+Light");
m_DrawFinalPass->Draw(*scene);
m_DrawFinalPass->Draw(*scene, m_BlurHUDPass);
GLERROR("Draw Geometry+Light");
//m_DrawScenePass->Draw(*scene);
@@ -194,6 +195,12 @@ void Renderer::Draw(RenderFrame& frame)
if (m_DebugTextureToDraw == 5) {
m_DrawScreenQuadPass->Draw(m_SSAOPass->SSAOTexture());
}
if (m_DebugTextureToDraw == 6) {
m_DrawScreenQuadPass->Draw(m_DrawFinalPass->CombinedSceneTexture());
}
if (m_DebugTextureToDraw == 7) {
m_DrawScreenQuadPass->Draw(m_DrawFinalPass->FullBlurredTexture());
}
PerformanceTimer::StopTimer("Renderer-Misc Debug Draws");
PerformanceTimer::StartTimer("Renderer-ImGuiRenderPass");
@@ -244,9 +251,10 @@ void Renderer::InitializeRenderPasses()
m_LightCullingPass = new LightCullingPass(this);
m_CubeMapPass = new CubeMapPass(this);
m_SSAOPass = new SSAOPass(this, m_Config);
m_BlurHUDPass = new BlurHUD(this);
m_DrawFinalPass = new DrawFinalPass(this, m_LightCullingPass, m_CubeMapPass, m_SSAOPass);
m_DrawScreenQuadPass = new DrawScreenQuadPass(this);
m_DrawBloomPass = new DrawBloomPass(this, m_Config);
m_DrawColorCorrectionPass = new DrawColorCorrectionPass(this);
}