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完成三角形渲染的 msaa8x 抗锯齿

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xsl
2025-11-18 11:09:16 +08:00
parent c6db16a52b
commit 3c5c720486
2 changed files with 176 additions and 47 deletions
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vulkan/Application.cpp
+163 -46
View File
@@ -70,7 +70,9 @@ void Application::initVulkan()
pickPhysicalDevice(physicalDevice, surface); // 选择物理设备
createLogicalDevice(); // 创建逻辑设备
createSwapChain(); // 创建交换链
createImages();
createImageViews(); // 创建交换链图像视图
createColorResources();
createRenderPass(); // 创建渲染流程
createPipelineLayout(); // 在这里调用
createGraphicsPipeline(); // 创建图形管线
@@ -81,6 +83,14 @@ void Application::initVulkan()
inited = true;
}
void Application::createImages()
{
uint32_t imageCount = 0;
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, nullptr);
swapChainImages.resize(imageCount);
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, swapChainImages.data());
}
void Application::createImageViews() {
swapChainImageViews.resize(swapChainImages.size());
@@ -105,20 +115,23 @@ void Application::createImageViews() {
}
}
}
void Application::createFramebuffers() {
void Application::createFramebuffers()
{
swapChainFramebuffers.resize(swapChainImageViews.size());
for (size_t i = 0; i < swapChainImageViews.size(); i++) {
VkImageView attachments[] = {
swapChainImageViews[i]
for (size_t i = 0; i < swapChainImageViews.size(); i++)
{
std::vector<VkImageView> attachments =
{
colorImageView, // 0: MSAA color attachment
swapChainImageViews[i] // 1: resolve target (swapchain)
};
VkFramebufferCreateInfo framebufferInfo{};
framebufferInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
framebufferInfo.renderPass = renderPass;
framebufferInfo.attachmentCount = 1;
framebufferInfo.pAttachments = attachments;
framebufferInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
framebufferInfo.pAttachments = attachments.data();
framebufferInfo.width = swapChainExtent.width;
framebufferInfo.height = swapChainExtent.height;
framebufferInfo.layers = 1;
@@ -232,15 +245,12 @@ void Application::createSwapChain() {
throw std::runtime_error("failed to create swap chain!");
}
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, nullptr);
swapChainImages.resize(imageCount);
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, swapChainImages.data());
swapChainImageFormat = surfaceFormat.format;
swapChainExtent = extent;
}
void Application::createPipelineLayout() {
VkPipelineLayoutCreateInfo pipelineLayoutInfo{};
pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
@@ -327,7 +337,7 @@ void Application::createGraphicsPipeline() {
VkPipelineMultisampleStateCreateInfo multisampling{};
multisampling.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
multisampling.sampleShadingEnable = VK_FALSE;
multisampling.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
multisampling.rasterizationSamples = VK_SAMPLE_COUNT_8_BIT;
// 颜色混合状态
VkPipelineColorBlendAttachmentState colorBlendAttachment{};
@@ -365,31 +375,62 @@ void Application::createGraphicsPipeline() {
}
void Application::createRenderPass() {
// 1. 多重采样颜色附件（8x）
VkAttachmentDescription colorAttachment{};
colorAttachment.format = swapChainImageFormat;
colorAttachment.samples = VK_SAMPLE_COUNT_1_BIT;
colorAttachment.samples = VK_SAMPLE_COUNT_8_BIT; // ←←← 8x
colorAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
colorAttachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
colorAttachment.storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE; // 不需要存储，因为会 resolve
colorAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
colorAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
colorAttachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
colorAttachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
colorAttachment.finalLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
// 2. Resolve 附件（普通 swapchain image）
VkAttachmentDescription resolveAttachment{};
resolveAttachment.format = swapChainImageFormat;
resolveAttachment.samples = VK_SAMPLE_COUNT_1_BIT; // ←←← resolve 到单采样
resolveAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
resolveAttachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
resolveAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
resolveAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
resolveAttachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
resolveAttachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
// 引用
VkAttachmentReference colorAttachmentRef{};
colorAttachmentRef.attachment = 0;
colorAttachmentRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
VkAttachmentReference resolveAttachmentRef{};
resolveAttachmentRef.attachment = 1;
resolveAttachmentRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
// Subpass：指定 color 和 resolve
VkSubpassDescription subpass{};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.colorAttachmentCount = 1;
subpass.pColorAttachments = &colorAttachmentRef;
subpass.pResolveAttachments = &resolveAttachmentRef; // ←←← 关键！
// Subpass 依赖（可选但推荐）
VkSubpassDependency dependency{};
dependency.srcSubpass = VK_SUBPASS_EXTERNAL;
dependency.dstSubpass = 0;
dependency.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependency.srcAccessMask = 0;
dependency.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependency.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
std::vector<VkAttachmentDescription> attachments = { colorAttachment, resolveAttachment };
VkRenderPassCreateInfo renderPassInfo{};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
renderPassInfo.attachmentCount = 1;
renderPassInfo.pAttachments = &colorAttachment;
renderPassInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
renderPassInfo.pAttachments = attachments.data();
renderPassInfo.subpassCount = 1;
renderPassInfo.pSubpasses = &subpass;
renderPassInfo.dependencyCount = 1;
renderPassInfo.pDependencies = &dependency;
if (vkCreateRenderPass(device, &renderPassInfo, nullptr, &renderPass) != VK_SUCCESS) {
throw std::runtime_error("failed to create render pass!");
@@ -397,7 +438,6 @@ void Application::createRenderPass() {
}
void Application::createCommandPool() {
QueueFamilyIndices queueFamilyIndices = findQueueFamilies(physicalDevice, surface);
@@ -488,17 +528,18 @@ void Application::recordCommandBuffer(VkCommandBuffer commandBuffer, uint32_t im
void Application::drawLeft()
{
if(showDrawDebug)
cout << "call drawLeft curFrame:" << to_string(currentFrame) << endl;
// 1. 等待前一帧完成
vkWaitForFences(device, 1, &inFlightFences_Left, VK_TRUE, UINT64_MAX);
cout << "vkWaitForFences inFlightFences_Left" << endl;
if (showDrawDebug) cout << "vkWaitForFences inFlightFences_Left" << endl;
// 2. 获取交换链图像 - 使用当前帧的信号量
uint32_t imageIndex;
VkResult result = vkAcquireNextImageKHR(device, swapChain, UINT64_MAX, imageAvailableSemaphores_Left, VK_NULL_HANDLE, &imageIndex);
cout << "vkAcquireNextImageKHR set imageAvailableSemaphores_Left ImageIndex:" << to_string(imageIndex) << endl;
if (showDrawDebug) cout << "vkAcquireNextImageKHR set imageAvailableSemaphores_Left ImageIndex:" << to_string(imageIndex) << endl;
if (result != VK_SUCCESS) {
throw std::runtime_error("failed to acquire swap chain image!");
@@ -508,15 +549,15 @@ void Application::drawLeft()
{
// 3. 检查该图像是否正在被之前的帧使用
if (imagesInFlight_Left != VK_NULL_HANDLE) {
cout << "vkWaitForFences imagesInFlight_Left ImageIndex:" << to_string(imageIndex) << endl;
if (showDrawDebug) cout << "vkWaitForFences imagesInFlight_Left ImageIndex:" << to_string(imageIndex) << endl;
vkWaitForFences(device, 1, &imagesInFlight_Left, VK_TRUE, UINT64_MAX);
}
else
{
cout << "imagesInFlight_Left is NULL" << endl;
if (showDrawDebug) cout << "imagesInFlight_Left is NULL" << endl;
}
cout << "imagesInFlight_Left = inFlightFences_Left ImageIndex:" << to_string(imageIndex) << endl;
if (showDrawDebug) cout << "imagesInFlight_Left = inFlightFences_Left ImageIndex:" << to_string(imageIndex) << endl;
// 标记该图像正在被当前帧使用
imagesInFlight_Left = inFlightFences_Left;
}
@@ -524,18 +565,18 @@ void Application::drawLeft()
{
// 3. 检查该图像是否正在被之前的帧使用
if (imagesInFlight_Right != VK_NULL_HANDLE) {
cout << "vkWaitForFences imagesInFlight_Right ImageIndex:" << to_string(imageIndex) << endl;
if (showDrawDebug) cout << "vkWaitForFences imagesInFlight_Right ImageIndex:" << to_string(imageIndex) << endl;
vkWaitForFences(device, 1, &imagesInFlight_Right, VK_TRUE, UINT64_MAX);
}
cout << "imagesInFlight_Right = inFlightFences_Left ImageIndex:" << to_string(imageIndex) << endl;
if (showDrawDebug) cout << "imagesInFlight_Right = inFlightFences_Left ImageIndex:" << to_string(imageIndex) << endl;
imagesInFlight_Right = inFlightFences_Left;
}
cout << "vkResetFences inFlightFences_Left" << endl;
if (showDrawDebug) cout << "vkResetFences inFlightFences_Left" << endl;
// 4. 重置栅栏
vkResetFences(device, 1, &inFlightFences_Left);
cout << "Process commandBuffers_Left" << endl;
if (showDrawDebug) cout << "Process commandBuffers_Left" << endl;
// 5. 记录命令缓冲区
vkResetCommandBuffer(commandBuffers_Left, 0);
recordCommandBuffer(commandBuffers_Left, imageIndex);
@@ -556,21 +597,21 @@ void Application::drawLeft()
VkSemaphore signalSemaphores[1];
if (imageIndex == 0)
{
cout << "renderFinishedSemaphores_Left ImageIndex:" << to_string(imageIndex) << endl;
if (showDrawDebug) cout << "renderFinishedSemaphores_Left ImageIndex:" << to_string(imageIndex) << endl;
// 使用对应图像的渲染完成信号量
signalSemaphores[0] = { renderFinishedSemaphores_Left };
}
else
{
cout << "renderFinishedSemaphores_Right ImageIndex:" << to_string(imageIndex) << endl;
if (showDrawDebug) cout << "renderFinishedSemaphores_Right ImageIndex:" << to_string(imageIndex) << endl;
// 使用对应图像的渲染完成信号量
signalSemaphores[0] = { renderFinishedSemaphores_Right };
}
submitInfo.signalSemaphoreCount = 1;
submitInfo.pSignalSemaphores = signalSemaphores;
cout << "vkQueueSubmit inFlightFences_Left" << endl;
if (showDrawDebug) cout << "vkQueueSubmit inFlightFences_Left" << endl;
if (vkQueueSubmit(graphicsQueue, 1, &submitInfo, inFlightFences_Left) != VK_SUCCESS) {
throw std::runtime_error("failed to submit draw command buffer!");
}
@@ -586,7 +627,7 @@ void Application::drawLeft()
presentInfo.pSwapchains = swapChains;
presentInfo.pImageIndices = &imageIndex;
cout << "Present Left \n" << endl;
if (showDrawDebug) cout << "Present Left \n" << endl;
result = vkQueuePresentKHR(presentQueue, &presentInfo);
if (result != VK_SUCCESS) {
@@ -597,17 +638,17 @@ void Application::drawLeft()
void Application::drawRight()
{
cout << "call drawRight curFrame:" << to_string(currentFrame) << endl;
if (showDrawDebug) cout << "call drawRight curFrame:" << to_string(currentFrame) << endl;
// 1. 等待前一帧完成
vkWaitForFences(device, 1, &inFlightFences_Right, VK_TRUE, UINT64_MAX);
cout << "vkWaitForFences inFlightFences_Right" << endl;
if (showDrawDebug) cout << "vkWaitForFences inFlightFences_Right" << endl;
// 2. 获取交换链图像 - 使用当前帧的信号量
uint32_t imageIndex;
VkResult result = vkAcquireNextImageKHR(device, swapChain, UINT64_MAX, imageAvailableSemaphores_Right, VK_NULL_HANDLE, &imageIndex);
cout << "vkAcquireNextImageKHR set imageAvailableSemaphores_Right ImageIndex:" << to_string(imageIndex) << endl;
if (showDrawDebug) cout << "vkAcquireNextImageKHR set imageAvailableSemaphores_Right ImageIndex:" << to_string(imageIndex) << endl;
if (result != VK_SUCCESS) {
throw std::runtime_error("failed to acquire swap chain image!");
@@ -617,10 +658,10 @@ void Application::drawRight()
{
// 3. 检查该图像是否正在被之前的帧使用
if (imagesInFlight_Left != VK_NULL_HANDLE) {
cout << "vkWaitForFences imagesInFlight_Left ImageIndex:0" << endl;
if (showDrawDebug) cout << "vkWaitForFences imagesInFlight_Left ImageIndex:0" << endl;
vkWaitForFences(device, 1, &imagesInFlight_Left, VK_TRUE, UINT64_MAX);
}
cout << "imagesInFlight_Left = inFlightFences_Right ImageIndex:0" << endl;
if (showDrawDebug) cout << "imagesInFlight_Left = inFlightFences_Right ImageIndex:0" << endl;
// 标记该图像正在被当前帧使用
imagesInFlight_Left = inFlightFences_Right;
}
@@ -628,21 +669,21 @@ void Application::drawRight()
{
// 3. 检查该图像是否正在被之前的帧使用
if (imagesInFlight_Right != VK_NULL_HANDLE) {
cout << "vkWaitForFences imagesInFlight_Right ImageIndex:1" << endl;
if (showDrawDebug) cout << "vkWaitForFences imagesInFlight_Right ImageIndex:1" << endl;
vkWaitForFences(device, 1, &imagesInFlight_Right, VK_TRUE, UINT64_MAX);
}
else {
cout << "imagesInFlight_Right is NULL" << endl;
if (showDrawDebug) cout << "imagesInFlight_Right is NULL" << endl;
}
cout << "imagesInFlight_Right = inFlightFences_Right ImageIndex:1" << endl;
if (showDrawDebug) cout << "imagesInFlight_Right = inFlightFences_Right ImageIndex:1" << endl;
imagesInFlight_Right = inFlightFences_Right;
}
cout << "vkResetFences inFlightFences_Right" << endl;
if (showDrawDebug) cout << "vkResetFences inFlightFences_Right" << endl;
// 4. 重置栅栏
vkResetFences(device, 1, &inFlightFences_Right);
cout << "Process commandBuffers_Right" << endl;
if (showDrawDebug) cout << "Process commandBuffers_Right" << endl;
// 5. 记录命令缓冲区
vkResetCommandBuffer(commandBuffers_Right, 0);
recordCommandBuffer(commandBuffers_Right, imageIndex);
@@ -663,21 +704,21 @@ void Application::drawRight()
VkSemaphore signalSemaphores[1];
if (imageIndex == 0)
{
cout << "renderFinishedSemaphores_Left ImageIndex:0" << endl;
if (showDrawDebug) cout << "renderFinishedSemaphores_Left ImageIndex:0" << endl;
// 使用对应图像的渲染完成信号量
signalSemaphores[0] = { renderFinishedSemaphores_Left };
}
else
{
cout << "renderFinishedSemaphores_Right ImageIndex:1" << endl;
if (showDrawDebug) cout << "renderFinishedSemaphores_Right ImageIndex:1" << endl;
// 使用对应图像的渲染完成信号量
signalSemaphores[0] = { renderFinishedSemaphores_Right };
}
submitInfo.signalSemaphoreCount = 1;
submitInfo.pSignalSemaphores = signalSemaphores;
cout << "vkQueueSubmit inFlightFences_Right" << endl;
if (showDrawDebug) cout << "vkQueueSubmit inFlightFences_Right" << endl;
if (vkQueueSubmit(graphicsQueue, 1, &submitInfo, inFlightFences_Right) != VK_SUCCESS) {
throw std::runtime_error("failed to submit draw command buffer!");
}
@@ -693,7 +734,7 @@ void Application::drawRight()
presentInfo.pSwapchains = swapChains;
presentInfo.pImageIndices = &imageIndex;
cout << "Present Right \n" << endl;
if (showDrawDebug) cout << "Present Right \n" << endl;
result = vkQueuePresentKHR(presentQueue, &presentInfo);
if (result != VK_SUCCESS) {
@@ -721,6 +762,77 @@ void DestroyDebugUtilsMessengerEXT(VkInstance instance, VkDebugUtilsMessengerEXT
}
}
void Application::createColorResources() {
VkFormat colorFormat = swapChainImageFormat;
VkImageCreateInfo imageInfo{};
imageInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
imageInfo.imageType = VK_IMAGE_TYPE_2D;
imageInfo.format = colorFormat;
imageInfo.extent.width = swapChainExtent.width;
imageInfo.extent.height = swapChainExtent.height;
imageInfo.extent.depth = 1;
imageInfo.mipLevels = 1;
imageInfo.arrayLayers = 1;
imageInfo.samples = VK_SAMPLE_COUNT_8_BIT; // ←←← 8x MSAA
imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageInfo.usage = VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
if (vkCreateImage(device, &imageInfo, nullptr, &colorImage) != VK_SUCCESS) {
throw std::runtime_error("failed to create MSAA color image!");
}
VkMemoryRequirements memRequirements;
vkGetImageMemoryRequirements(device, colorImage, &memRequirements);
VkMemoryAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.allocationSize = memRequirements.size;
allocInfo.memoryTypeIndex = findMemoryType(physicalDevice, memRequirements.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
if (vkAllocateMemory(device, &allocInfo, nullptr, &colorImageMemory) != VK_SUCCESS) {
throw std::runtime_error("failed to allocate MSAA color image memory!");
}
vkBindImageMemory(device, colorImage, colorImageMemory, 0);
// 创建 ImageView
VkImageViewCreateInfo viewInfo{};
viewInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
viewInfo.image = colorImage;
viewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
viewInfo.format = colorFormat;
viewInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
viewInfo.subresourceRange.baseMipLevel = 0;
viewInfo.subresourceRange.levelCount = 1;
viewInfo.subresourceRange.baseArrayLayer = 0;
viewInfo.subresourceRange.layerCount = 1;
if (vkCreateImageView(device, &viewInfo, nullptr, &colorImageView) != VK_SUCCESS) {
throw std::runtime_error("failed to create MSAA color image view!");
}
}
uint32_t Application::findMemoryType(VkPhysicalDevice physicalDevice, uint32_t typeFilter,
VkMemoryPropertyFlags properties)
{
VkPhysicalDeviceMemoryProperties memProperties;
vkGetPhysicalDeviceMemoryProperties(physicalDevice, &memProperties);
for (uint32_t i = 0; i < memProperties.memoryTypeCount; i++)
{
if ((typeFilter & (1 << i)) &&
(memProperties.memoryTypes[i].propertyFlags & properties) == properties)
{
return i;
}
}
throw std::runtime_error("Failed to find suitable memory type!");
}
void Application::cleanup() {
if (enableValidationLayers) {
DestroyDebugUtilsMessengerEXT(instance, debugMessenger, nullptr);
@@ -758,6 +870,10 @@ void Application::cleanup() {
vkDestroyImageView(device, imageView, nullptr);
}
vkDestroyImageView(device, colorImageView, nullptr);
vkDestroyImage(device, colorImage, nullptr);
vkFreeMemory(device, colorImageMemory, nullptr);
// 销毁交换链
vkDestroySwapchainKHR(device, swapChain, nullptr);
@@ -773,6 +889,7 @@ void Application::cleanup() {
// 销毁 Vulkan 实例
vkDestroyInstance(instance, nullptr);
#ifdef _WIN32
// 销毁 GLFW 窗口
glfwDestroyWindow(window);
vulkan/Application.h
+12
View File
@@ -17,6 +17,7 @@ public:
void mainLoop();
void cleanup();
void createImages();
void createImageViews();
void createFramebuffers();
void createCommandPool();
@@ -65,6 +66,17 @@ private:
VkFence imagesInFlight_Left = VK_NULL_HANDLE;
VkFence imagesInFlight_Right = VK_NULL_HANDLE;
const bool showDrawDebug = false;
int currentFrame = 0;
bool inited = false;
//MSAA
VkImage colorImage;
VkDeviceMemory colorImageMemory;
VkImageView colorImageView;
void createColorResources();
uint32_t findMemoryType(VkPhysicalDevice physicalDevice, uint32_t typeFilter,
VkMemoryPropertyFlags properties);
};