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This commit is contained in:
Teejoon
2016-02-26 18:01:38 +01:00
parent 62e22d3821
commit b320d8d1e4
9 changed files with 84 additions and 33 deletions
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src/Engine/Rendering/DrawBloomPass.cpp
+44 -11
View File
@@ -1,19 +1,39 @@
#include "Rendering/DrawBloomPass.h"
DrawBloomPass::DrawBloomPass(IRenderer* renderer)
DrawBloomPass::DrawBloomPass(IRenderer* renderer, ConfigFile* config)
: m_Renderer(renderer)
, m_Config(config)
{
m_Renderer = renderer;
InitializeTextures();
m_ScreenQuad = ResourceManager::Load<Model>("Models/Core/ScreenQuad.mesh");
ChangeQuality(m_Config->Get<int>("GLOW.Quality", 2));
}
InitializeTextures();
InitializeBuffers();
InitializeShaderPrograms();
void DrawBloomPass::ChangeQuality(int quality)
{
if (m_Quality == quality) {
return;
}
m_Quality = quality;
m_ScreenQuad = ResourceManager::Load<Model>("Models/Core/ScreenQuad.mesh");
if (m_Quality == 0) {
glDeleteTextures(1, &m_GaussianTexture_horiz);
glDeleteTextures(1, &m_GaussianTexture_vert);
return;
}
std::string qStr = std::to_string(m_Quality);
m_Iterations = m_Config->Get<float>("GLOW" + qStr + ".NumIterations", 0);
InitializeBuffers();
InitializeShaderPrograms();
}
void DrawBloomPass::InitializeTextures()
{
m_WhiteTexture = CommonFunctions::LoadTexture("Textures/Core/White.png", false);
m_BlackTexture = CommonFunctions::LoadTexture("Textures/Core/Black.png", false);
}
void DrawBloomPass::InitializeShaderPrograms()
@@ -40,18 +60,24 @@ void DrawBloomPass::InitializeBuffers()
{
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.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_GaussianTexture_horiz, GL_COLOR_ATTACHMENT0)));
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();
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.AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_GaussianTexture_vert, GL_COLOR_ATTACHMENT0)));
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();
}
void DrawBloomPass::ClearBuffer()
{
if (m_Quality == 0) {
return;
}
GLERROR("PRE");
m_GaussianFrameBuffer_horiz.Bind();
glClearColor(0.f, 0.f, 0.f, 0.f);
@@ -66,6 +92,9 @@ void DrawBloomPass::ClearBuffer()
void DrawBloomPass::Draw(GLuint texture)
{
if (m_Quality == 0) {
return;
}
GLERROR("DrawBloomPass::Draw: Pre");
DrawBloomPassState state;
@@ -84,7 +113,7 @@ void DrawBloomPass::Draw(GLuint texture)
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++) {
for (int i = 1; i < m_Iterations; i++) {
//Vertical pass
m_GaussianFrameBuffer_vert.Bind();
m_GaussianProgram_vert->Bind();
@@ -125,6 +154,9 @@ void DrawBloomPass::Draw(GLuint texture)
void DrawBloomPass::OnWindowResize()
{
if (m_Quality == 0) {
return;
}
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();
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);
@@ -133,6 +165,7 @@ void DrawBloomPass::OnWindowResize()
void DrawBloomPass::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);