claude_code/procedural-3d-engine
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Use only one intermediate image

Browse source
This commit is contained in:
Sascha Willems 2025-02-16 18:27:23 +01:00
parent 1cd72f3d07
commit e4cf8a6116
1 changed files with 36 additions and 41 deletions
Download patch file Download diff file Expand all files Collapse all files

39
examples/dynamicrenderingmultisampling/dynamicrenderingmultisampling.cpp
View file

@ -34,13 +34,13 @@ public:
VkDescriptorSetLayout descriptorSetLayout{ VK_NULL_HANDLE };
// Intermediate images used for multi sampling
struct RenderImage {
struct Image {
VkImage image{ VK_NULL_HANDLE };
VkImageView view{ VK_NULL_HANDLE };
VkDeviceMemory memory{ VK_NULL_HANDLE };
};
std::vector<RenderImage> renderImages;
RenderImage depthStencilRenderImage;
Image renderImage;
Image depthStencilRenderImage;
VulkanExample() : VulkanExampleBase()
{
@ -74,11 +74,9 @@ public:
vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
uniformBuffer.destroy();
for (auto i = 0; i < renderImages.size(); i++) {
vkDestroyImage(device, renderImages[i].image, nullptr);
vkDestroyImageView(device, renderImages[i].view, nullptr);
vkFreeMemory(device, renderImages[i].memory, nullptr);
}
vkDestroyImage(device, renderImage.image, nullptr);
vkDestroyImageView(device, renderImage.view, nullptr);
vkFreeMemory(device, renderImage.memory, nullptr);
}
}
@ -92,11 +90,9 @@ public:
{
// With VK_KHR_dynamic_rendering we no longer need a frame buffer, so we can so skip the sample base framebuffer setup
// For multi sampling we need intermediate images that are then resolved to the final presentation image
renderImages.resize(swapChain.images.size());
for (auto i = 0; i < renderImages.size(); i++) {
vkDestroyImage(device, renderImages[i].image, nullptr);
vkDestroyImageView(device, renderImages[i].view, nullptr);
vkFreeMemory(device, renderImages[i].memory, nullptr);
vkDestroyImage(device, renderImage.image, nullptr);
vkDestroyImageView(device, renderImage.view, nullptr);
vkFreeMemory(device, renderImage.memory, nullptr);
VkImageCreateInfo renderImageCI = vks::initializers::imageCreateInfo();
renderImageCI.imageType = VK_IMAGE_TYPE_2D;
renderImageCI.format = swapChain.colorFormat;
@ -107,22 +103,21 @@ public:
renderImageCI.tiling = VK_IMAGE_TILING_OPTIMAL;
renderImageCI.usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
renderImageCI.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
VK_CHECK_RESULT(vkCreateImage(device, &renderImageCI, nullptr, &renderImages[i].image));
VK_CHECK_RESULT(vkCreateImage(device, &renderImageCI, nullptr, &renderImage.image));
VkMemoryRequirements memReqs{};
vkGetImageMemoryRequirements(device, renderImages[i].image, &memReqs);
vkGetImageMemoryRequirements(device, renderImage.image, &memReqs);
VkMemoryAllocateInfo memAllloc{};
memAllloc.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
memAllloc.allocationSize = memReqs.size;
memAllloc.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK_RESULT(vkAllocateMemory(device, &memAllloc, nullptr, &renderImages[i].memory));
VK_CHECK_RESULT(vkBindImageMemory(device, renderImages[i].image, renderImages[i].memory, 0));
VK_CHECK_RESULT(vkAllocateMemory(device, &memAllloc, nullptr, &renderImage.memory));
VK_CHECK_RESULT(vkBindImageMemory(device, renderImage.image, renderImage.memory, 0));
VkImageViewCreateInfo imageViewCI = vks::initializers::imageViewCreateInfo();
imageViewCI.viewType = VK_IMAGE_VIEW_TYPE_2D;
imageViewCI.image = renderImages[i].image;
imageViewCI.image = renderImage.image;
imageViewCI.format = swapChain.colorFormat;
imageViewCI.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
VK_CHECK_RESULT(vkCreateImageView(device, &imageViewCI, nullptr, &renderImages[i].view));
}
VK_CHECK_RESULT(vkCreateImageView(device, &imageViewCI, nullptr, &renderImage.view));
}
// We need to override the default depth/stencil setup to create a depth image that supports multi sampling
@ -191,7 +186,7 @@ public:
// This set of barriers prepares the color and depth images for output
vks::tools::insertImageMemoryBarrier(
drawCmdBuffers[i],
renderImages[i].image,
renderImage.image,
0,
VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
@ -218,7 +213,7 @@ public:
colorAttachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
colorAttachment.clearValue.color = { 0.0f,0.0f,0.0f,0.0f };
// When multi sampling is used, we use intermediate images to render and resolve to the swap chain images
colorAttachment.imageView = renderImages[i].view;
colorAttachment.imageView = renderImage.view;
colorAttachment.resolveMode = VK_RESOLVE_MODE_AVERAGE_BIT;
colorAttachment.resolveImageView = swapChain.imageViews[i];
colorAttachment.resolveImageLayout = VK_IMAGE_LAYOUT_GENERAL;