初步完成page的按需加载卸载

ArchitectureColoredPainting/ArchitectureColoredPainting.vcxproj

@@ -70,6 +70,7 @@
       <LanguageStandard>stdcpp20</LanguageStandard>
       <AdditionalIncludeDirectories>$(ProjectDir)include;$(SolutionDir)ArchitectureColoredPainting\src\Editor\RightBar;$(SolutionDir)ArchitectureColoredPainting\src\Editor\;$(SolutionDir)FramelessHelper\include;$(SolutionDir)FramelessHelper\qmake\inc\core;$(SolutionDir)FramelessHelper\include\FramelessHelper\Core;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>FRAMELESSHELPER_WIDGETS_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <WarningLevel>Level1</WarningLevel>
     </ClCompile>
     <Link>
       <AdditionalDependencies>opengl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
@@ -171,6 +172,7 @@
     <None Include="res\Shaders\model_shadow.frag" />
     <None Include="res\Shaders\model_shadow.geom" />
     <None Include="res\Shaders\model_shadow.vert" />
+    <None Include="res\Shaders\pageId_downsample.comp" />
     <None Include="res\Shaders\painting.comp" />
     <None Include="res\Shaders\painting.frag" />
     <None Include="res\Shaders\painting.vert" />

ArchitectureColoredPainting/ArchitectureColoredPainting.vcxproj.filters

@@ -326,6 +326,9 @@
     <None Include="res\Shaders\brdf_lut.comp">
       <Filter>Resource Files\Shaders</Filter>
     </None>
+    <None Include="res\Shaders\pageId_downsample.comp">
+      <Filter>Resource Files\Shaders</Filter>
+    </None>
   </ItemGroup>
   <ItemGroup>
     <QtUic Include="EditorWidget.ui">

ArchitectureColoredPainting/res/MainWindow.qrc

@@ -31,6 +31,7 @@
         <file>Shaders/irradiance_convolution.frag</file>
         <file>Shaders/cubemap_prefilter.frag</file>
         <file>Shaders/brdf_lut.comp</file>
+        <file>Shaders/pageId_downsample.comp</file>
     </qresource>
     <qresource prefix="/qt/etc">
         <file>qt.conf</file>

ArchitectureColoredPainting/res/Shaders/model.frag

@@ -9,7 +9,7 @@ layout (location = 0) out vec4 gBaseColor;
 layout (location = 1) out vec3 gNormal;
 layout (location = 2) out vec3 gPosition;
 layout (location = 3) out vec2 gMetallicRoughness;
-layout (location = 4) out uint gPaintingIndex;
+layout (location = 4) out uvec2 gPaintingIndex;
 
 in vec2 TexCoords;
 in vec3 WorldPos;
@@ -52,6 +52,6 @@ void main()
     else
         gMetallicRoughness = vec2(0,1);
    
-    gPaintingIndex = 0;
+    gPaintingIndex = uvec2(0);
 
 }

ArchitectureColoredPainting/res/Shaders/model_shadow.frag

@@ -1,4 +1,5 @@
 #version 450 core
+#extension GL_ARB_sparse_texture2 : enable
 
 uniform sampler2D texture_basecolor;
 
@@ -6,8 +7,11 @@ in vec2 TexCoords;
 
 void main()
 {      
-    //gBaseColor = vec4(1,0,0,1);
+    vec4 baseColor;// = texture(texture_basecolor, TexCoords);
-	vec4 baseColor = texture(texture_basecolor, TexCoords);
+    float lod = textureQueryLod(texture_basecolor, TexCoords).x;
+    while(!sparseTexelsResidentARB(sparseTextureLodARB(texture_basecolor, TexCoords, lod, baseColor))&&lod<textureQueryLevels(texture_basecolor))
+        lod++;
+	
     if(baseColor.a<0.4)
         discard;
 }

ArchitectureColoredPainting/res/Shaders/pageId_downsample.comp

@@ -0,0 +1,14 @@
+#version 450 core
+
+layout (local_size_x = 8, local_size_y = 8) in;
+
+layout(rg16ui, binding = 3) uniform uimage2D gPageId;
+
+uniform uvec2 dither = uvec2(0);
+
+void main()
+{
+	uvec2 targetLocation = gl_GlobalInvocationID.xy;
+	uvec2 sourceLocation = targetLocation * 8 + dither;
+	imageStore(gPageId, ivec2(targetLocation), uvec4(imageLoad(gPageId, ivec2(sourceLocation))));
+}

ArchitectureColoredPainting/res/Shaders/painting.frag

@@ -4,11 +4,13 @@
 uniform sampler2D texture_basecolor;
 uniform sampler2D texture_metallic_roughness;
 
+uniform uint paintingId;
+
 layout(location = 0) out vec4 gBaseColor;
 layout(location = 1) out vec3 gNormal;
 layout(location = 2) out vec3 gPosition;
 layout(location = 3) out vec2 gMetallicRoughness;
-layout(location = 4) out uint gPaintingIndex;
+layout(location = 4) out uvec2 gPaintingIndex;
 layout(location = 5) out vec2 gPaintingTexCoord;
 
 in vec2 TexCoords;
@@ -17,24 +19,36 @@ in vec3 Normal;
 
 void main()
 {
-    float lod = textureQueryLod(texture_basecolor, TexCoords).x;
+    int lodExpect = int(textureQueryLod(texture_basecolor, TexCoords).x);
-    while(!sparseTexelsResidentARB(sparseTextureLodARB(texture_basecolor, TexCoords, lod, gBaseColor))&&lod<textureQueryLevels(texture_basecolor))
+    int levels = textureQueryLevels(texture_basecolor);
+    float lod = lodExpect;
+    while(!sparseTexelsResidentARB(sparseTextureLodARB(texture_basecolor, TexCoords, lod, gBaseColor))&&lod<levels)
         lod++;
-
     if(gBaseColor.a<0.4)
         discard;
     //gBaseColor = vec4( vec3(1),1 );
-    // mainImage(gBaseColor, vec2(1.,1.)-TexCoords);
     gPosition = WorldPos;
     gNormal = normalize(Normal);
     //gMetallicRoughness = vec2(0,1);
-    lod = textureQueryLod(texture_metallic_roughness, TexCoords).x;
+    lod = lodExpect;
     vec4 mt;
-    while(!sparseTexelsResidentARB(sparseTextureLodARB(texture_metallic_roughness, TexCoords, lod, mt))&&lod<textureQueryLevels(texture_metallic_roughness))
+    while(!sparseTexelsResidentARB(sparseTextureLodARB(texture_metallic_roughness, TexCoords, lod, mt))&&lod<levels)
         lod++;
     gMetallicRoughness = mt.rg;
-    //gPaintingIndex = 1;
+    
-    gPaintingIndex = 0;
+//    int pageSize = textureSize(texture_basecolor, levels-1).x;
+
+//    uint pageId = 0;
+//    for(uint i = 0; i < lodExpect; i++)
+//        pageId += 1<<(2*(levels-1-i));
+    uint w = 1<<(levels-1-lodExpect);
+    ivec2 page = ivec2(TexCoords * vec2(w));
+    page = clamp(page, ivec2(0), ivec2(w-1));
+//    pageId += page.y*w+page.x;
+    if(lodExpect==levels-1)
+        gPaintingIndex = uvec2(0);
+    else
+        gPaintingIndex = uvec2((paintingId<<4)+lodExpect, (page.y<<8)+page.x);
     gPaintingTexCoord = vec2(1., 1.) - TexCoords * 2;
     return;
 

ArchitectureColoredPainting/src/Renderer/Mesh.cpp

@@ -22,12 +22,9 @@ void Mesh::draw()
 {
 	if (shaderProgram->bind())
 	{
-		glFunc->glActiveTexture(GL_TEXTURE0);
+		glFunc->glBindTextureUnit(0, textureBasecolor);
-		glFunc->glBindTexture(GL_TEXTURE_2D, textureBasecolor);
+		glFunc->glBindTextureUnit(1, textureMetallicRoughness);
-		glFunc->glActiveTexture(GL_TEXTURE1);
+		glFunc->glBindTextureUnit(2, textureNormal);
-		glFunc->glBindTexture(GL_TEXTURE_2D, textureMetallicRoughness);
-		glFunc->glActiveTexture(GL_TEXTURE2);
-		glFunc->glBindTexture(GL_TEXTURE_2D, textureNormal);
 		shaderProgram->setUniformValue("texture_basecolor", 0);
 		shaderProgram->setUniformValue("texture_metallic_roughness", 1);
 		shaderProgram->setUniformValue("texture_normal", 2);
@@ -44,8 +41,7 @@ void Mesh::drawShadow()
 {
 	if (shadowProgram->bind())
 	{
-		glFunc->glActiveTexture(GL_TEXTURE0);
+		glFunc->glBindTextureUnit(0, textureBasecolor);
-		glFunc->glBindTexture(GL_TEXTURE_2D, textureBasecolor);
 		shadowProgram->setUniformValue("texture_basecolor", 0);
 
 		QOpenGLVertexArrayObject::Binder bind(&VAO);

ArchitectureColoredPainting/src/Renderer/Model.cpp

@@ -148,8 +148,8 @@ std::unique_ptr<Drawable> Model::processMesh(aiMesh* mesh, const aiScene* scene,
 			}
 		}
 
-		m_mesh->paintingIndex = loadPainting(std::string(str.C_Str()));
+		m_mesh->paintingId = loadPainting(std::string(str.C_Str()));
-		auto& handle = vtManager->paintings[m_mesh->paintingIndex];
+		auto& handle = vtManager->getPaintingHandle(m_mesh->paintingId);
 		m_mesh->textureBasecolor = handle.baseColor;
 		m_mesh->textureMetallicRoughness = handle.metallicRoughness;
 		m_mesh->setupMesh();

ArchitectureColoredPainting/src/Renderer/PaintingMesh.cpp

@@ -13,15 +13,14 @@ void PaintingMesh::draw()
 {
     if (shaderProgram->bind())
     {
-        glFunc->glActiveTexture(GL_TEXTURE0);
+        glFunc->glBindTextureUnit(0, textureBasecolor);
-        glFunc->glBindTexture(GL_TEXTURE_2D, textureBasecolor);
+        glFunc->glBindTextureUnit(1, textureMetallicRoughness);
-        glFunc->glActiveTexture(GL_TEXTURE1);
-        glFunc->glBindTexture(GL_TEXTURE_2D, textureMetallicRoughness);
         shaderProgram->setUniformValue("texture_basecolor", 0);
         shaderProgram->setUniformValue("texture_metallic_roughness", 1);
 
         QOpenGLVertexArrayObject::Binder bind(&VAO);
         shaderProgram->setUniformValue("model", model);
+        glFunc->glUniform1ui(glFunc->glGetUniformLocation(shaderProgram->programId(), "paintingId"), paintingId);
         EBO.bind();
         glFunc->glDrawElements(GL_TRIANGLES, indices.size(), GL_UNSIGNED_INT, 0);
         shaderProgram->release();
@@ -31,6 +30,8 @@ void PaintingMesh::drawShadow()
 {
     if (shadowProgram->bind())
     {
+        glFunc->glBindTextureUnit(0, textureBasecolor);
+        shadowProgram->setUniformValue("texture_basecolor", 0);
         QOpenGLVertexArrayObject::Binder bind(&VAO);
         shadowProgram->setUniformValue("model", model);
         EBO.bind();

ArchitectureColoredPainting/src/Renderer/PaintingMesh.h

@@ -25,7 +25,7 @@ namespace Renderer
 		QMatrix4x4 model;
 		QOpenGLFunctions_4_5_Compatibility* glFunc;
 		QOpenGLShaderProgram* shaderProgram, * shadowProgram;
-		GLuint paintingIndex;
+		GLuint paintingId;
 
 		PaintingMesh(QOpenGLFunctions_4_5_Compatibility* glFunc, QOpenGLShaderProgram* shaderProgram, QOpenGLShaderProgram* shadowProgram, const QMatrix4x4& model);
 		void draw() override;

ArchitectureColoredPainting/src/Renderer/RendererGLWidget.cpp

@@ -10,6 +10,7 @@
 #include <glm/gtc/matrix_transform.hpp>
 #include "IblUtils.h"
 #include "VirtualTextureManager.h"
+#include <QDebug>
 
 using namespace Renderer;
 
@@ -101,16 +102,34 @@ void Renderer::RendererGLWidget::setExposure(float exposure)
 
 QOpenGLTexture randomMap(QOpenGLTexture::Target2D);
 
+void GLAPIENTRY MessageCallback(GLenum source,
+	GLenum type,
+	GLuint id,
+	GLenum severity,
+	GLsizei length,
+	const GLchar* message,
+	const void* userParam)
+{
+	//fprintf(stderr, "GL CALLBACK: %s type = 0x%x, severity = 0x%x, message = %s\n",
+	//	(type == GL_DEBUG_TYPE_ERROR ? "** GL ERROR **" : ""),
+	//	type, severity, message);
+	if (type == GL_DEBUG_TYPE_ERROR)
+		qCritical() << QString::fromStdString(std::format("GL_ERROR: type = {:#x}, severity = {:#x}, message = {}",
+			type, severity, message));
+}
 
 void RendererGLWidget::initializeGL()
 {
 	gl = std::make_unique<GladGLContext>();
 	if (!gladLoadGLContext(gl.get(), [](const char* name) { return (GLADapiproc)QOpenGLContext::currentContext()->getProcAddress(name); }))
-		qDebug() << "Failed to initialize GLAD";
+		qCritical() << "Failed to initialize GLAD";
 
 	QOpenGLFunctions_4_5_Core* glFunc = QOpenGLContext::currentContext()->versionFunctions<QOpenGLFunctions_4_5_Core>();
 	qDebug() << "GL_VERSION" << (char*)gl->GetString(GL_VERSION);
 
+	gl->Enable(GL_DEBUG_OUTPUT);
+	gl->DebugMessageCallback(MessageCallback, 0);
+
 	gl->Enable(GL_DEPTH_TEST);
 	gl->DepthFunc(GL_LEQUAL);
 	gl->Enable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
@@ -118,83 +137,83 @@ void RendererGLWidget::initializeGL()
 
 	shadowProgramPtr = new QOpenGLShaderProgram;
 	if (!shadowProgramPtr->addShaderFromSourceFile(QOpenGLShader::Vertex, ":/Shaders/model_shadow.vert"))
-		qDebug() << "ERROR:" << shadowProgramPtr->log();
+		qCritical() << "ERROR:" << shadowProgramPtr->log();
 	if (!shadowProgramPtr->addShaderFromSourceFile(QOpenGLShader::Geometry, ":/Shaders/model_shadow.geom"))
-		qDebug() << "ERROR:" << shadowProgramPtr->log();
+		qCritical() << "ERROR:" << shadowProgramPtr->log();
 	if (!shadowProgramPtr->addShaderFromSourceFile(QOpenGLShader::Fragment, ":/Shaders/model_shadow.frag"))
-		qDebug() << "ERROR:" << shadowProgramPtr->log();
+		qCritical() << "ERROR:" << shadowProgramPtr->log();
 	if (!shadowProgramPtr->link())
-		qDebug() << "ERROR:" << shadowProgramPtr->log();
+		qCritical() << "ERROR:" << shadowProgramPtr->log();
 
 	plainProgramPtr = new QOpenGLShaderProgram;
 	if (!plainProgramPtr->addShaderFromSourceFile(QOpenGLShader::Vertex, ":/Shaders/shader.vert"))
-		qDebug() << "ERROR:" << plainProgramPtr->log();
+		qCritical() << "ERROR:" << plainProgramPtr->log();
 	if (!plainProgramPtr->addShaderFromSourceFile(QOpenGLShader::Fragment, ":/Shaders/shader.frag"))
-		qDebug() << "ERROR:" << plainProgramPtr->log();
+		qCritical() << "ERROR:" << plainProgramPtr->log();
 	if (!plainProgramPtr->link())
-		qDebug() << "ERROR:" << plainProgramPtr->log();
+		qCritical() << "ERROR:" << plainProgramPtr->log();
 
 	modelProgramPtr = new QOpenGLShaderProgram;
 	if (!modelProgramPtr->addShaderFromSourceFile(QOpenGLShader::Vertex, ":/Shaders/model.vert"))
-		qDebug() << "ERROR:" << modelProgramPtr->log();
+		qCritical() << "ERROR:" << modelProgramPtr->log();
 	if (!modelProgramPtr->addShaderFromSourceFile(QOpenGLShader::Fragment, ":/Shaders/model.frag"))
-		qDebug() << "ERROR:" << modelProgramPtr->log();
+		qCritical() << "ERROR:" << modelProgramPtr->log();
 	if (!modelProgramPtr->link())
-		qDebug() << "ERROR:" << modelProgramPtr->log();
+		qCritical() << "ERROR:" << modelProgramPtr->log();
 
 	paintingProgramPtr = new QOpenGLShaderProgram;
 	if (!paintingProgramPtr->addShaderFromSourceFile(QOpenGLShader::Vertex, ":/Shaders/painting.vert"))
-		qDebug() << "ERROR:" << paintingProgramPtr->log();
+		qCritical() << "ERROR:" << paintingProgramPtr->log();
 	if (!paintingProgramPtr->addShaderFromSourceFile(QOpenGLShader::Fragment, ":/Shaders/painting.frag"))
-		qDebug() << "ERROR:" << paintingProgramPtr->log();
+		qCritical() << "ERROR:" << paintingProgramPtr->log();
 	if (!paintingProgramPtr->link())
-		qDebug() << "ERROR:" << paintingProgramPtr->log();
+		qCritical() << "ERROR:" << paintingProgramPtr->log();
 
-	paintingCompProgramPtr = new QOpenGLShaderProgram;
+	pageIdDownsampleProgramPtr = new QOpenGLShaderProgram;
-	if (!paintingCompProgramPtr->addShaderFromSourceFile(QOpenGLShader::Compute, ":/Shaders/painting.comp"))
+	if (!pageIdDownsampleProgramPtr->addShaderFromSourceFile(QOpenGLShader::Compute, ":/Shaders/pageId_downsample.comp"))
-		qDebug() << "ERROR:" << paintingCompProgramPtr->log();
+		qCritical() << "ERROR:" << pageIdDownsampleProgramPtr->log();
-	if (!paintingCompProgramPtr->link())
+	if (!pageIdDownsampleProgramPtr->link())
-		qDebug() << "ERROR:" << paintingCompProgramPtr->log();
+		qCritical() << "ERROR:" << pageIdDownsampleProgramPtr->log();
 
 	depthInitProgramPtr = new QOpenGLShaderProgram;
 	if (!depthInitProgramPtr->addShaderFromSourceFile(QOpenGLShader::Compute, ":/Shaders/depth_init.comp"))
-		qDebug() << "ERROR:" << depthInitProgramPtr->log();
+		qCritical() << "ERROR:" << depthInitProgramPtr->log();
 	if (!depthInitProgramPtr->link())
-		qDebug() << "ERROR:" << depthInitProgramPtr->log();
+		qCritical() << "ERROR:" << depthInitProgramPtr->log();
 
 	depthMipmapProgramPtr = new QOpenGLShaderProgram;
 	if (!depthMipmapProgramPtr->addShaderFromSourceFile(QOpenGLShader::Compute, ":/Shaders/depth_mipmap.comp"))
-		qDebug() << "ERROR:" << depthMipmapProgramPtr->log();
+		qCritical() << "ERROR:" << depthMipmapProgramPtr->log();
 	if (!depthMipmapProgramPtr->link())
-		qDebug() << "ERROR:" << depthMipmapProgramPtr->log();
+		qCritical() << "ERROR:" << depthMipmapProgramPtr->log();
 
 	shadowMappingProgramPtr = new QOpenGLShaderProgram;
 	if (!shadowMappingProgramPtr->addShaderFromSourceFile(QOpenGLShader::Compute, ":/Shaders/shadow_mapping.comp"))
-		qDebug() << "ERROR:" << shadowMappingProgramPtr->log();
+		qCritical() << "ERROR:" << shadowMappingProgramPtr->log();
 	if (!shadowMappingProgramPtr->link())
-		qDebug() << "ERROR:" << shadowMappingProgramPtr->log();
+		qCritical() << "ERROR:" << shadowMappingProgramPtr->log();
 
 	ssgiProgramPtr = new QOpenGLShaderProgram;
 	if (!ssgiProgramPtr->addShaderFromSourceFile(QOpenGLShader::Compute, ":/Shaders/ssgi.comp"))
-		qDebug() << "ERROR:" << ssgiProgramPtr->log();
+		qCritical() << "ERROR:" << ssgiProgramPtr->log();
 	if (!ssgiProgramPtr->link())
-		qDebug() << "ERROR:" << ssgiProgramPtr->log();
+		qCritical() << "ERROR:" << ssgiProgramPtr->log();
 
 	finalProgramPtr = new QOpenGLShaderProgram;
 	if (!finalProgramPtr->addShaderFromSourceFile(QOpenGLShader::Vertex, ":/Shaders/final.vert"))
-		qDebug() << "ERROR:" << finalProgramPtr->log();
+		qCritical() << "ERROR:" << finalProgramPtr->log();
 	if (!finalProgramPtr->addShaderFromSourceFile(QOpenGLShader::Fragment, ":/Shaders/final.frag"))
-		qDebug() << "ERROR:" << finalProgramPtr->log();
+		qCritical() << "ERROR:" << finalProgramPtr->log();
 	if (!finalProgramPtr->link())
-		qDebug() << "ERROR:" << finalProgramPtr->log();
+		qCritical() << "ERROR:" << finalProgramPtr->log();
 
 	skyBoxProgramPtr = new QOpenGLShaderProgram;
 	if (!skyBoxProgramPtr->addShaderFromSourceFile(QOpenGLShader::Vertex, ":/Shaders/skybox.vert"))
-		qDebug() << "ERROR:" << skyBoxProgramPtr->log();
+		qCritical() << "ERROR:" << skyBoxProgramPtr->log();
 	if (!skyBoxProgramPtr->addShaderFromSourceFile(QOpenGLShader::Fragment, ":/Shaders/skybox.frag"))
-		qDebug() << "ERROR:" << skyBoxProgramPtr->log();
+		qCritical() << "ERROR:" << skyBoxProgramPtr->log();
 	if (!skyBoxProgramPtr->link())
-		qDebug() << "ERROR:" << skyBoxProgramPtr->log();
+		qCritical() << "ERROR:" << skyBoxProgramPtr->log();
 
 	shadowProgramPtr->bind();
 	gl->GenBuffers(1, &lightSpaceMatricesUBO);
@@ -271,6 +290,11 @@ void RendererGLWidget::initializeGL()
 void RendererGLWidget::paintGL()
 {
 	QOpenGLFunctions_4_5_Core* glFunc = QOpenGLContext::currentContext()->versionFunctions<QOpenGLFunctions_4_5_Core>();
+	GLuint timeQuery;
+	gl->GenQueries(1, &timeQuery);
+	gl->BeginQuery(GL_TIME_ELAPSED, timeQuery);
+
+
 
 	gl->Enable(GL_CULL_FACE);
 
@@ -342,40 +366,35 @@ void RendererGLWidget::paintGL()
 		}
 		plainProgramPtr->release();
 
+		pageIdDownsampleProgramPtr->bind();
+		gl->BindImageTexture(3, gbuffers[4], 0, GL_FALSE, 0, GL_READ_WRITE, GL_RG16UI);
+		gl->DispatchCompute(ceil(frameWidth / 8. / 8.), ceil(frameWidth / 8. / 8.), 1);
+		pageIdDownsampleProgramPtr->release();
+
+		std::vector<glm::u16vec2> pixels;
+		pixels.resize(ceil(frameWidth / 8.) * ceil(frameHeight / 8.));
+		gl->ReadBuffer(GL_COLOR_ATTACHMENT4);
+		gl->ReadnPixels(0, 0, ceil(frameWidth / 8.), ceil(frameHeight / 8.), GL_RG_INTEGER, GL_UNSIGNED_SHORT, pixels.size() * sizeof(glm::u16vec2), pixels.data());
+		vtManager->updatePages(pixels);
+
 		fboPtr->release();
 	}
 
-	GLuint paintingCompQuery;
+	//depthInitProgramPtr->bind();
-	gl->GenQueries(1, &paintingCompQuery);
+	//gl->ActiveTexture(GL_TEXTURE0);
-	gl->BeginQuery(GL_TIME_ELAPSED, paintingCompQuery);
+	//gl->BindTexture(GL_TEXTURE_2D, gbuffers[6]);
+	//gl->BindImageTexture(0, gbuffers[7], 0, GL_FALSE, 0, GL_READ_WRITE, GL_R32F);
+	//gl->DispatchCompute(ceil(depthWidth / 8.), ceil(depthHeight / 8.), 1);
+	//depthInitProgramPtr->release();
 
-	paintingCompProgramPtr->bind();
+	//depthMipmapProgramPtr->bind();
-	gl->BindImageTexture(0, gbuffers[0], 0, GL_FALSE, 0, GL_READ_WRITE, GL_RGBA8);
+	//for (int i = 0; i <= 3; i++)
-	gl->BindImageTexture(1, gbuffers[3], 0, GL_FALSE, 0, GL_READ_WRITE, GL_RG8);
+	//	gl->BindImageTexture(i, gbuffers[7], i, GL_FALSE, 0, GL_READ_WRITE, GL_R32F);
-	gl->BindImageTexture(2, gbuffers[4], 0, GL_FALSE, 0, GL_READ_WRITE, GL_R16UI);
+	//gl->DispatchCompute(ceil(depthWidth / 2. / 8.), ceil(depthHeight / 2. / 8.), 1);
-	gl->BindImageTexture(3, gbuffers[5], 0, GL_FALSE, 0, GL_READ_WRITE, GL_RG32F);
+	//for (int i = 0; i <= 3; i++)
-
+	//	gl->BindImageTexture(i, gbuffers[7], i + 3, GL_FALSE, 0, GL_READ_WRITE, GL_R32F);
-	//gl->DispatchCompute(ceil(frameWidth / 8.), ceil(frameHeight / 8.), 1);
+	//gl->DispatchCompute(ceil(depthWidth / 2. / 8. / 8.), ceil(depthHeight / 2. / 8. / 8.), 1);
-	paintingCompProgramPtr->release();
+	//depthMipmapProgramPtr->release();
-
-	gl->EndQuery(GL_TIME_ELAPSED);
-
-
-	depthInitProgramPtr->bind();
-	gl->ActiveTexture(GL_TEXTURE0);
-	gl->BindTexture(GL_TEXTURE_2D, gbuffers[6]);
-	gl->BindImageTexture(0, gbuffers[7], 0, GL_FALSE, 0, GL_READ_WRITE, GL_R32F);
-	gl->DispatchCompute(ceil(depthWidth / 8.), ceil(depthHeight / 8.), 1);
-	depthInitProgramPtr->release();
-
-	depthMipmapProgramPtr->bind();
-	for (int i = 0; i <= 3; i++)
-		gl->BindImageTexture(i, gbuffers[7], i, GL_FALSE, 0, GL_READ_WRITE, GL_R32F);
-	gl->DispatchCompute(ceil(depthWidth / 2. / 8.), ceil(depthHeight / 2. / 8.), 1);
-	for (int i = 0; i <= 3; i++)
-		gl->BindImageTexture(i, gbuffers[7], i + 3, GL_FALSE, 0, GL_READ_WRITE, GL_R32F);
-	gl->DispatchCompute(ceil(depthWidth / 2. / 8. / 8.), ceil(depthHeight / 2. / 8. / 8.), 1);
-	depthMipmapProgramPtr->release();
 
 	shadowMappingProgramPtr->bind();
 	shadowMappingProgramPtr->setUniformValue("view", view);
@@ -388,22 +407,15 @@ void RendererGLWidget::paintGL()
 	shadowMappingProgramPtr->setUniformValue("camPos", camera.Position);
 	shadowMappingProgramPtr->setUniformValue("mainLightDirection", light.lightDirection);
 	shadowMappingProgramPtr->setUniformValue("mainLightRadiance", mainLightRadiance);
-	/*gl->ActiveTexture(GL_TEXTURE0);
+
-	gl->BindTexture(GL_TEXTURE_2D, gbuffers[0]);*/
+	gl->BindTextureUnit(1, gbuffers[1]);
-	gl->ActiveTexture(GL_TEXTURE1);
+	gl->BindTextureUnit(2, gbuffers[2]);
-	gl->BindTexture(GL_TEXTURE_2D, gbuffers[1]);
+	gl->BindTextureUnit(3, gbuffers[3]);
-	gl->ActiveTexture(GL_TEXTURE2);
+	gl->BindTextureUnit(4, shadowGbuffer);
-	gl->BindTexture(GL_TEXTURE_2D, gbuffers[2]);
+	gl->BindTextureUnit(5, irradianceMap);
-	gl->ActiveTexture(GL_TEXTURE3);
+	gl->BindTextureUnit(6, prefilterMap);
-	gl->BindTexture(GL_TEXTURE_2D, gbuffers[3]);
+	gl->BindTextureUnit(7, brdfLUTTexture);
-	gl->ActiveTexture(GL_TEXTURE4);
+
-	gl->BindTexture(GL_TEXTURE_2D_ARRAY, shadowGbuffer);
-	gl->ActiveTexture(GL_TEXTURE5);
-	gl->BindTexture(GL_TEXTURE_CUBE_MAP, irradianceMap);
-	gl->ActiveTexture(GL_TEXTURE6);
-	gl->BindTexture(GL_TEXTURE_CUBE_MAP, prefilterMap);
-	gl->ActiveTexture(GL_TEXTURE7);
-	gl->BindTexture(GL_TEXTURE_2D, brdfLUTTexture);
 	gl->BindImageTexture(0, gbuffers[0], 0, GL_FALSE, 0, GL_READ_WRITE, GL_RGBA8);
 	gl->BindImageTexture(1, gbuffers[8], 0, GL_FALSE, 0, GL_READ_WRITE, GL_RGBA16F);
 	gl->DispatchCompute(ceil(frameWidth / 8.), ceil(frameHeight / 8.), 1);
@@ -435,11 +447,9 @@ void RendererGLWidget::paintGL()
 
 	gl->Viewport(0, 0, frameWidth, frameHeight);
 	gl->Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-	//QOpenGLVertexArrayObject::Binder vaoBinder(&quadVAO);
 	finalProgramPtr->bind();
 	finalProgramPtr->setUniformValue("exposure", exposure);
-	gl->ActiveTexture(GL_TEXTURE0);
+	gl->BindTextureUnit(0, gbuffers[0]);
-	gl->BindTexture(GL_TEXTURE_2D, gbuffers[0]);	
 	quadVAO.bind();
 	gl->DrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 	quadVAO.release();
@@ -450,28 +460,29 @@ void RendererGLWidget::paintGL()
 	skyBoxProgramPtr->setUniformValue("view", view);
 	skyBoxProgramPtr->setUniformValue("projection", projection);
 	skyBoxProgramPtr->setUniformValue("exposure", exposure);
-	gl->ActiveTexture(GL_TEXTURE0);
+	gl->BindTextureUnit(0, skyCubemap);
-	gl->BindTexture(GL_TEXTURE_CUBE_MAP, skyCubemap);
 	IblUtils::renderCube(glFunc);
 	skyBoxProgramPtr->release();
 
-	GLuint paintingCompDuration;
+	gl->EndQuery(GL_TIME_ELAPSED);
-	gl->GetQueryObjectuiv(paintingCompQuery, GL_QUERY_RESULT, &paintingCompDuration);
+	GLuint frameDuration;
+	gl->GetQueryObjectuiv(timeQuery, GL_QUERY_RESULT, &frameDuration);
 
 	clock_t currentFrame = std::clock();
 	deltaTime = (float)(currentFrame - lastFrame) / CLOCKS_PER_SEC;
 	lastFrame = currentFrame;
 
-	static float accTime = 0, frameCnt = 0;
+	static float accTime = 0, frameCnt = 0, averageDuration = 0;
 	accTime += deltaTime;
 	frameCnt++;
+	averageDuration += frameDuration;
 	if (accTime > 1.)
 	{
 		std::cout << std::format("{:20}\r", "");
-		std::cout << std::format("FPS: {:.2f} Painting: {}ms Pos: {},{},{}\r", frameCnt / accTime, paintingCompDuration / 1e6, camera.Position.x(), camera.Position.y(), camera.Position.z());
+		std::cout << std::format("FPS: {:.2f}({:.2f}ms) Pos: {:.2f},{:.2f},{:.2f}\r", frameCnt / accTime, averageDuration / 1e6 / frameCnt, camera.Position.x(), camera.Position.y(), camera.Position.z());
-		//std::cout << "FPS: " << frameCnt / accTime << " " << camera.Position.x() << " " << camera.Position.y() << " " << camera.Position.z() << "\r";
 		accTime = 0;
 		frameCnt = 0;
+		averageDuration = 0;
 	}
 
 	if (pressedKeys.contains(Qt::Key_W)) {
@@ -536,7 +547,7 @@ void RendererGLWidget::resizeGL(int width, int height)
 		gl->FramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT3, GL_TEXTURE_2D, gbuffers[3], 0);
 		//gPaintingIndex
 		gl->BindTexture(GL_TEXTURE_2D, gbuffers[4]);
-		gl->TexImage2D(GL_TEXTURE_2D, 0, GL_R16UI, frameWidth, frameHeight, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, NULL);
+		gl->TexImage2D(GL_TEXTURE_2D, 0, GL_RG16UI, frameWidth, frameHeight, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, NULL);
 		gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 		gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 		gl->FramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT4, GL_TEXTURE_2D, gbuffers[4], 0);

ArchitectureColoredPainting/src/Renderer/RendererGLWidget.h

@@ -59,7 +59,7 @@ namespace Renderer
         QOpenGLShaderProgram* plainProgramPtr = nullptr;
         QOpenGLShaderProgram* modelProgramPtr = nullptr;
         QOpenGLShaderProgram* paintingProgramPtr = nullptr;
-        QOpenGLShaderProgram* paintingCompProgramPtr = nullptr;
+        QOpenGLShaderProgram* pageIdDownsampleProgramPtr = nullptr;
         QOpenGLShaderProgram* depthInitProgramPtr = nullptr;
         QOpenGLShaderProgram* depthMipmapProgramPtr = nullptr;
         QOpenGLShaderProgram* shadowMappingProgramPtr = nullptr;

ArchitectureColoredPainting/src/Renderer/VirtualTextureManager.cpp

@@ -47,7 +47,7 @@ Renderer::VirtualTextureManager::VirtualTextureManager(GladGLContext* gl)
 
 }
 
-GLuint Renderer::VirtualTextureManager::createVirtualTexture(Painting painting)
+std::uint16_t Renderer::VirtualTextureManager::createVirtualTexture(Painting painting)
 {
 	const GLsizei levels = glm::log2(textureSize / pageSize) + 1;
 	qDebug() << "levels:" << levels;
@@ -103,6 +103,66 @@ GLuint Renderer::VirtualTextureManager::createVirtualTexture(Painting painting)
 			}
 	}
 	paintings.emplace_back(baseColor, metallicRoughness, painting.buffers);
-
+	return paintings.size();
-	return paintings.size() - 1;
+}
+
+Renderer::PaintingHandle& Renderer::VirtualTextureManager::getPaintingHandle(std::uint16_t id)
+{
+	return paintings[id - 1];
+}
+
+void Renderer::VirtualTextureManager::pageCommitmentById(const glm::u16vec2& pageId, GLboolean commit)
+{
+	auto& painting = getPaintingHandle(pageId.x >> 4);
+	GLint level = pageId.x & 0b1111;
+	glm::ivec2 page(pageId.y & 0b11111111, pageId.y >> 8);
+	qDebug() << commit << level << page.x << page.y;
+	gl->TexturePageCommitmentEXT(painting.baseColor, level,
+		static_cast<GLsizei>(pageSize) * page.x, static_cast<GLsizei>(pageSize) * page.y, 0,
+		static_cast<GLsizei>(pageSize), static_cast<GLsizei>(pageSize), 1,
+		commit);
+	gl->TexturePageCommitmentEXT(painting.metallicRoughness, level,
+		static_cast<GLsizei>(pageSize) * page.x, static_cast<GLsizei>(pageSize) * page.y, 0,
+		static_cast<GLsizei>(pageSize), static_cast<GLsizei>(pageSize), 1,
+		commit);
+
+	if (commit)
+	{
+		program.bind();
+		gl->Uniform2i(gl->GetUniformLocation(program.programId(), "pixelOffset"), static_cast<GLsizei>(pageSize) * page.x, static_cast<GLsizei>(pageSize) * page.y);
+		gl->BindImageTexture(0, painting.baseColor, level, GL_FALSE, 0, GL_READ_WRITE, GL_RGBA8);
+		gl->BindImageTexture(1, painting.metallicRoughness, level, GL_FALSE, 0, GL_READ_WRITE, GL_RG8);
+		gl->DispatchCompute(pageSize / 8, pageSize / 8, 1);
+		program.release();
+	}
+}
+
+void Renderer::VirtualTextureManager::updatePages(const std::vector<glm::u16vec2>& pageIds)
+{
+	for (auto iter = loadedPages.begin(); iter != loadedPages.end();)
+	{
+		iter->second--;
+		if (iter->second == 0)
+		{
+			pageCommitmentById(iter->first, GL_FALSE);
+			iter = loadedPages.erase(iter);
+		}
+		else
+			iter++;
+	}
+	for (auto& pageId : pageIds)
+	{
+		if (pageId.x)
+		{
+			auto [iter, success] = loadedPages.emplace(pageId, lifeTime);
+			if (success)
+			{
+				pageCommitmentById(pageId, GL_TRUE);
+
+			}
+			else
+				iter->second = lifeTime;
+		}
+	}
+
 }

ArchitectureColoredPainting/src/Renderer/VirtualTextureManager.h

@@ -1,6 +1,7 @@
 #pragma once
 #include "Painting/Painting.h"
 #include <QOpenGLShaderProgram>
+#include <unordered_map>
 
 struct GladGLContext;
 
@@ -16,22 +17,35 @@ namespace Renderer
 	class VirtualTextureManager
 	{
 	public:
-		static constexpr GLsizei textureSize = 16384;
-		std::vector<PaintingHandle> paintings;
-
 		VirtualTextureManager(GladGLContext* gl);
 
 		/**
 		 * @brief
 		 * @param painting
-		 * @return 在paintings中索引
+		 * @return ÐéÄâÎÆÀíid
 		 */
-		GLuint createVirtualTexture(Painting painting);
+		std::uint16_t createVirtualTexture(Painting painting);
+		PaintingHandle& getPaintingHandle(std::uint16_t id);
+		void updatePages(const std::vector<glm::u16vec2>& pageIds);
 	private:
 		GladGLContext* gl;
+		static constexpr GLsizei textureSize = 16384;
+		static constexpr int lifeTime = 64;
 		GLint pageSize;
 		QOpenGLShaderProgram program;
+		std::vector<PaintingHandle> paintings;
 
+		struct u16vec2Hash
+		{
+			std::size_t operator()(glm::u16vec2 const& v) const
+			{
+				return ((std::size_t)v.y << 16) + v.x;
+			}
+		};
+
+		std::unordered_map<glm::u16vec2, int, u16vec2Hash> loadedPages;
+
+		void pageCommitmentById(const glm::u16vec2& pageId, GLboolean commit);
 	};
 }
 

ArchitectureColoredPainting/src/main.cpp

@@ -27,12 +27,11 @@ void messageHandler(QtMsgType type, const QMessageLogContext& context, const QSt
 		SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_GREEN);
 		break;
 	case QtCriticalMsg:
-		SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_BLUE);
-		break;
-	case QtFatalMsg:
 		SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_RED);
 		break;
-
+	case QtFatalMsg:
+		SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE | BACKGROUND_RED);
+		break;
 	}
 	std::cout << std::format("{}({},{}) {}\n",
 		QString(context.file).splitRef("\\").back().toLocal8Bit().data(),