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MSAA mostly working. Only merging the MS render buffer to a single texture so that others could use the AA texture easly

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This commit is contained in:
Teejoon
2016-03-11 19:05:34 +01:00
parent 0869afd529
commit 1ad087dc75
5 changed files with 237 additions and 57 deletions
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src/Engine/Rendering/DrawFinalPass.cpp
+102 -32
View File
@@ -8,6 +8,9 @@ DrawFinalPass::DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCulling
{
//TODO: Make sure that uniforms are not sent into shader if not needed.
m_ShieldPixelRate = 8;
m_FinalPassFrameBuffer = new FrameBuffer();
m_ShieldDepthFrameBuffer = new FrameBuffer();
InitializeTextures();
InitializeShaderPrograms();
InitializeFrameBuffers();
@@ -19,6 +22,9 @@ DrawFinalPass::~DrawFinalPass(){
CommonFunctions::DeleteTexture(&m_DepthBuffer);
CommonFunctions::DeleteTexture(&m_ShieldBuffer);
CommonFunctions::DeleteTexture(&m_CubeMapTexture);
delete m_FinalPassFrameBuffer;
delete m_ShieldDepthFrameBuffer;
}
void DrawFinalPass::InitializeTextures()
@@ -32,26 +38,78 @@ void DrawFinalPass::InitializeTextures()
void DrawFinalPass::InitializeFrameBuffers()
{
CommonFunctions::GenerateTexture(&m_SceneTexture, GL_CLAMP_TO_BORDER, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
//GenerateTexture(&m_BloomTexture, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->GetViewPortSize().Width, m_Renderer->GetViewPortSize().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
CommonFunctions::GenerateTexture(&m_BloomTexture, GL_CLAMP_TO_BORDER, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
//GenerateMipMapTexture(&m_BloomTexture, GL_CLAMP_TO_EDGE, glm::vec2(m_Renderer->GetViewPortSize().Width, m_Renderer->GetViewPortSize().Height), GL_RGB16F, GL_FLOAT, 4);
//GenerateTexture(&m_StencilTexture, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_STENCIL, GL_STENCIL_INDEX8, GL_INT);
if (m_MSAA) {
CommonFunctions::GenerateTexture(&m_AntiAliasedTexture, GL_CLAMP_TO_BORDER, GL_NEAREST,
glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
CommonFunctions::GenerateTexture(&m_DepthBuffer, GL_CLAMP_TO_BORDER, GL_NEAREST,
glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8);
if (m_AntiAliasedFrameBuffer == nullptr) {
m_AntiAliasedFrameBuffer = new FrameBuffer();
m_AntiAliasedFrameBuffer->AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_AntiAliasedTexture, GL_COLOR_ATTACHMENT0)));
}
m_AntiAliasedFrameBuffer->Generate();
m_FinalPassFrameBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_DepthBuffer, GL_DEPTH_STENCIL_ATTACHMENT)));
//m_FinalPassFrameBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_StencilTexture, GL_STENCIL_ATTACHMENT)));
m_FinalPassFrameBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_SceneTexture, GL_COLOR_ATTACHMENT0)));
m_FinalPassFrameBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_BloomTexture, GL_COLOR_ATTACHMENT1)));
m_FinalPassFrameBuffer.Generate();
glGenRenderbuffers(1, &m_SceneTexture);
glBindRenderbuffer(GL_RENDERBUFFER, m_SceneTexture);
glRenderbufferStorageMultisample(GL_RENDERBUFFER, m_MSAA, GL_RGB16F, m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height);
glGenRenderbuffers(1, &m_BloomTexture);
glBindRenderbuffer(GL_RENDERBUFFER, m_BloomTexture);
glRenderbufferStorageMultisample(GL_RENDERBUFFER, m_MSAA, GL_RGB16F, m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height);
glGenRenderbuffers(1, &m_DepthBuffer);
glBindRenderbuffer(GL_RENDERBUFFER, m_DepthBuffer);
glRenderbufferStorageMultisample(GL_RENDERBUFFER, m_MSAA, GL_DEPTH24_STENCIL8, m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height);
glGenRenderbuffers(1, &m_ShieldBuffer);
glBindRenderbuffer(GL_RENDERBUFFER, m_ShieldBuffer);
glRenderbufferStorageMultisample(GL_RENDERBUFFER, m_MSAA, GL_DEPTH_COMPONENT32F, m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height);
//CommonFunctions::GenerateMultiSampleTexture(&m_SceneTexture, m_MSAA, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_RGB16F);
//CommonFunctions::GenerateMultiSampleTexture(&m_BloomTexture, m_MSAA, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_RGB16F);
//CommonFunctions::GenerateMultiSampleTexture(&m_DepthBuffer, m_MSAA,
//glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_DEPTH24_STENCIL8);
//CommonFunctions::GenerateMultiSampleTexture(&m_ShieldBuffer, m_MSAA,
//glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_DEPTH_COMPONENT32F);
} else {
CommonFunctions::GenerateTexture(&m_SceneTexture, GL_CLAMP_TO_BORDER, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
//GenerateTexture(&m_BloomTexture, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->GetViewPortSize().Width, m_Renderer->GetViewPortSize().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
CommonFunctions::GenerateTexture(&m_BloomTexture, GL_CLAMP_TO_BORDER, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
//GenerateMipMapTexture(&m_BloomTexture, GL_CLAMP_TO_EDGE, glm::vec2(m_Renderer->GetViewPortSize().Width, m_Renderer->GetViewPortSize().Height), GL_RGB16F, GL_FLOAT, 4);
//GenerateTexture(&m_StencilTexture, GL_CLAMP_TO_EDGE, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_STENCIL, GL_STENCIL_INDEX8, GL_INT);
CommonFunctions::GenerateTexture(&m_DepthBuffer, GL_CLAMP_TO_BORDER, GL_NEAREST,
glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8);
CommonFunctions::GenerateTexture(&m_ShieldBuffer, GL_CLAMP_TO_BORDER, GL_NEAREST,
glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_DEPTH_COMPONENT32F, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT);
}
if (m_FinalPassFrameBuffer->GetHandle() == 0) {
if (m_MSAA) {
m_FinalPassFrameBuffer->AddResource(std::shared_ptr<BufferResource>(new RenderBuffer(&m_DepthBuffer, GL_DEPTH_STENCIL_ATTACHMENT)));
//m_FinalPassFrameBuffer->AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_StencilTexture, GL_STENCIL_ATTACHMENT)));
m_FinalPassFrameBuffer->AddResource(std::shared_ptr<BufferResource>(new RenderBuffer(&m_SceneTexture, GL_COLOR_ATTACHMENT0)));
m_FinalPassFrameBuffer->AddResource(std::shared_ptr<BufferResource>(new RenderBuffer(&m_BloomTexture, GL_COLOR_ATTACHMENT1)));
} else {
m_FinalPassFrameBuffer->AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_DepthBuffer, GL_DEPTH_STENCIL_ATTACHMENT)));
//m_FinalPassFrameBuffer->AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_StencilTexture, GL_STENCIL_ATTACHMENT)));
m_FinalPassFrameBuffer->AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_SceneTexture, GL_COLOR_ATTACHMENT0)));
m_FinalPassFrameBuffer->AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_BloomTexture, GL_COLOR_ATTACHMENT1)));
}
}
m_FinalPassFrameBuffer->Generate();
GLERROR("FBO generation");
CommonFunctions::GenerateTexture(&m_ShieldBuffer, GL_CLAMP_TO_BORDER, GL_NEAREST,
glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_DEPTH_COMPONENT32, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT);
m_ShieldDepthFrameBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_ShieldBuffer, GL_DEPTH_ATTACHMENT)));
m_ShieldDepthFrameBuffer.Generate();
if (m_ShieldDepthFrameBuffer->GetHandle() == 0) {
if (m_MSAA) {
m_ShieldDepthFrameBuffer->AddResource(std::shared_ptr<BufferResource>(new RenderBuffer(&m_ShieldBuffer, GL_DEPTH_ATTACHMENT)));
} else {
m_ShieldDepthFrameBuffer->AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_ShieldBuffer, GL_DEPTH_ATTACHMENT)));
}
}
m_ShieldDepthFrameBuffer->Generate();
}
void DrawFinalPass::InitializeShaderPrograms()
@@ -245,14 +303,14 @@ void DrawFinalPass::InitializeShaderPrograms()
void DrawFinalPass::Draw(RenderScene& scene, BlurHUD* blurHUDPass)
{
GLERROR("Pre");
DrawFinalPassState* stateDethp = new DrawFinalPassState(m_ShieldDepthFrameBuffer.GetHandle());
DrawFinalPassState* stateDethp = new DrawFinalPassState(m_ShieldDepthFrameBuffer->GetHandle());
//Draw shields to stencil
DrawToDepthStencilBuffer(scene.Jobs.ShieldObjects, scene);
GLERROR("StencilPass");
delete stateDethp;
DrawFinalPassState* state = new DrawFinalPassState(m_FinalPassFrameBuffer.GetHandle());
DrawFinalPassState* state = new DrawFinalPassState(m_FinalPassFrameBuffer->GetHandle());
if (scene.ClearDepth) {
//glClear(GL_DEPTH_BUFFER_BIT);
state->Disable(GL_DEPTH_TEST);
@@ -293,16 +351,21 @@ void DrawFinalPass::Draw(RenderScene& scene, BlurHUD* blurHUDPass)
delete state;
if (scene.ShouldBlur) {
//This needs to be drawn only when the full scene is being renderd, and then let be, otherwise sprite and other shit will show on it.
m_FullBlurredTexture = blurHUDPass->Draw(m_SceneTexture, scene);
GLuint sceneTexture = SceneTexture();
GLERROR("SceneTexture() 1");
m_FullBlurredTexture = blurHUDPass->Draw(sceneTexture, scene);
}
DrawFinalPassState* stateSprite = new DrawFinalPassState(m_FinalPassFrameBuffer.GetHandle());
DrawFinalPassState* stateSprite = new DrawFinalPassState(m_FinalPassFrameBuffer->GetHandle());
if(scene.ShouldBlur) {
//Combine nonblur and blur texture
stateSprite->Disable(GL_DEPTH_TEST);
stateSprite->Disable(GL_STENCIL_TEST);
m_CombinedTexture = blurHUDPass->CombineTextures(m_SceneTexture, m_FullBlurredTexture);
GLuint sceneTexture = SceneTexture();
GLERROR("SceneTexture() 2");
delete stateSprite;
stateSprite = new DrawFinalPassState(m_FinalPassFrameBuffer->GetHandle());
m_CombinedTexture = blurHUDPass->CombineTextures(sceneTexture, m_FullBlurredTexture);
}
//Draw Transparen objects
//state->BlendFunc(GL_ONE, GL_ONE);
@@ -325,30 +388,37 @@ void DrawFinalPass::Draw(RenderScene& scene, BlurHUD* blurHUDPass)
void DrawFinalPass::ClearBuffer()
{
GLERROR("PRE");
m_ShieldDepthFrameBuffer.Bind();
m_ShieldDepthFrameBuffer->Bind();
glClear(GL_DEPTH_BUFFER_BIT);
m_ShieldDepthFrameBuffer.Unbind();
m_FinalPassFrameBuffer.Bind();
m_ShieldDepthFrameBuffer->Unbind();
m_FinalPassFrameBuffer->Bind();
GLERROR("Bind HighRes");
glViewport(0, 0, m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height);
glScissor(0, 0, m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height);
GLERROR("ViewPort,Scissor LowRes");
glClearColor(0.f, 0.f, 0.f, 0.f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
m_FinalPassFrameBuffer.Unbind();
m_FinalPassFrameBuffer->Unbind();
GLERROR("END");
}
void DrawFinalPass::OnWindowResize()
{
//InitializeFrameBuffers();
CommonFunctions::GenerateTexture(&m_DepthBuffer, GL_CLAMP_TO_BORDER, GL_NEAREST,
glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8);
CommonFunctions::GenerateTexture(&m_SceneTexture, GL_CLAMP_TO_BORDER, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
CommonFunctions::GenerateTexture(&m_BloomTexture, GL_CLAMP_TO_BORDER, GL_LINEAR, glm::vec2(m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height), GL_RGB16F, GL_RGB, GL_FLOAT);
m_FinalPassFrameBuffer.Generate();
if (m_FinalPassFrameBuffer->MultiSampling() != (bool)m_MSAA) {
delete m_FinalPassFrameBuffer;
delete m_ShieldDepthFrameBuffer;
m_FinalPassFrameBuffer = new FrameBuffer();
m_ShieldDepthFrameBuffer = new FrameBuffer();
}
if (!m_MSAA) {
if (m_AntiAliasedFrameBuffer != nullptr) {
delete m_AntiAliasedFrameBuffer;
}
}
InitializeFrameBuffers();
GLERROR("Error changing texture resolutions");
}
src/Engine/Rendering/FrameBuffer.cpp
+33 -7
View File
@@ -2,12 +2,13 @@
#include "Rendering/FrameBuffer.h"
BufferResource::BufferResource(GLuint* resourceHandle, GLenum resourceType, GLenum attachment, GLuint mipMapLod)
BufferResource::BufferResource(GLuint* resourceHandle, GLenum resourceType, GLenum attachment, GLuint mipMapLod, bool multiSampling)
{
m_ResourceHandle = resourceHandle;
m_ResourceType = resourceType;
m_Attachment = attachment;
m_MipMapLod = mipMapLod;
m_MultiSampling = multiSampling;
}
Texture2D::~Texture2D()
@@ -17,6 +18,12 @@ Texture2D::~Texture2D()
}
}
Texture2DMultiSample::~Texture2DMultiSample()
{
if (m_ResourceHandle != 0) {
glDeleteTextures(1, m_ResourceHandle);
}
}
RenderBuffer::~RenderBuffer()
{
@@ -42,6 +49,14 @@ FrameBuffer::~FrameBuffer()
void FrameBuffer::AddResource(std::shared_ptr<BufferResource> resource)
{
//m_MultiSampling is true when initialized
if (m_MultiSampling != resource->m_MultiSampling) {
if (m_MultiSampling == false) {
GLERROR("All renderbuffers is/is not using multisampling");
} else {
m_MultiSampling = false;
}
}
m_Resources.push_back(resource);
}
@@ -55,20 +70,23 @@ void FrameBuffer::Generate()
}
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_MULTISAMPLE:
glFramebufferTexture2D(GL_FRAMEBUFFER, (*it)->m_Attachment, GL_TEXTURE_2D_MULTISAMPLE, 0, 0);
GLERROR("FrameBuffer generate: GL_TEXTURE_2D_MULTISAMPLE");
break;
case GL_TEXTURE_2D:
glFramebufferTexture(GL_FRAMEBUFFER, (*it)->m_Attachment, *(*it)->m_ResourceHandle, (*it)->m_MipMapLod);
GLERROR("FrameBuffer generate: glFramebufferTexture2D");
GLERROR("FrameBuffer generate: GL_TEXTURE_2D");
break;
case GL_RENDERBUFFER:
glFramebufferRenderbuffer(GL_FRAMEBUFFER, (*it)->m_Attachment, (*it)->m_ResourceType, *(*it)->m_ResourceHandle);
GLERROR("FrameBuffer generate: glFramebufferRenderbuffer");
GLERROR("FrameBuffer generate: GL_RENDERBUFFER");
break;
case GL_TEXTURE_2D_ARRAY:
glFramebufferTexture(GL_FRAMEBUFFER, (*it)->m_Attachment, *(*it)->m_ResourceHandle, 0);
GLERROR("FrameBuffer generate: glFramebufferTexture2DArray");
GLERROR("FrameBuffer generate: GL_TEXTURE_2D_ARRAY");
break;
}
GLERROR("2");
@@ -77,8 +95,8 @@ void FrameBuffer::Generate()
attachments.push_back((*it)->m_Attachment);
}
GLERROR("Attachment");
}
GLERROR("3");
GLenum* bufferTextures = attachments.data();
@@ -89,7 +107,7 @@ void FrameBuffer::Generate()
if (GLenum frameBufferStatus = glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
GLERROR("Framebuffer incomplete");
//LOG_ERROR("FrameBuffer incomplete: 0x%x\n", frameBufferStatus);
LOG_ERROR("FrameBuffer incomplete: 0x%x\n", glCheckFramebufferStatus(GL_FRAMEBUFFER));
exit(EXIT_FAILURE);
}
GLERROR("END");
@@ -110,3 +128,11 @@ GLuint FrameBuffer::GetHandle()
{
return m_BufferHandle;
}
void FrameBuffer::Read() {
glBindFramebuffer(GL_READ_FRAMEBUFFER, m_BufferHandle);
}
void FrameBuffer::Draw() {
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_BufferHandle);
}
src/Engine/Rendering/Util/CommonFunctions.cpp
+3 -2
View File
@@ -17,8 +17,9 @@ void CommonFunctions::GenerateMultiSampleTexture(GLuint* texture, int numSamples
{
glDeleteTextures(1, texture);
glGenTextures(1, texture);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, *texture);
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, numSamples, internalFormat, dimensions.x, dimensions.y, false);
glBindTexture(GL_TEXTURE_2D, *texture);
GLERROR("Texture initialization failed 1");
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, numSamples, internalFormat, dimensions.x, dimensions.y, GL_FALSE);
GLERROR("Texture initialization failed");
}