Vulkan验证层抱怨没有启用扩展，代码就像启用了扩展一样工作

Question

我正在尝试使用动态渲染扩展，因此我以这种方式初始化我的实例：

auto enabled = vk::ValidationFeatureEnableEXT::eBestPractices;
vk::ValidationFeaturesEXT features;
features.enabledValidationFeatureCount = 1;
features.pEnabledValidationFeatures = &enabled;
vk::PhysicalDeviceDynamicRenderingFeaturesKHR dynamic_rendering = {};
dynamic_rendering.dynamicRendering = true;
features.pNext = &dynamic_rendering;
// Setup general information about the current application.
vk::ApplicationInfo program_info(
"NeverEngine",
VK_MAKE_VERSION(1, 0, 0),
"No Engine",
VK_MAKE_VERSION(1, 0, 0),
VK_API_VERSION_1_2);
// Create Vulkan instance to communicate with the loader.
vk::InstanceCreateInfo create_info = {};
create_info.pNext = &features;
create_info.pApplicationInfo = &program_info,
create_info.enabledLayerCount = static_cast<uint32_t>(VALIDATION_LAYERS.size()),
create_info.ppEnabledLayerNames = VALIDATION_LAYERS.data(),
create_info.enabledExtensionCount = static_cast<uint32_t>(required_extensions.size()),
create_info.ppEnabledExtensionNames = required_extensions.data();
auto [result, instance] = vk::createInstanceUnique(create_info);
Assert(result == vk::Result::eSuccess, "Error: Failed to create instance");

然而，我得到了这些错误：

VUID-VkInstanceCreateInfo-pNext-pNext(ERROR / SPEC): msgNum: -1337267667 - Validation Error: [ VUID-VkInstanceCreateInfo-pNext-pNext ] Object 0: VK_NULL_HANDLE, type = VK_OBJECT_TYPE_DEVICE; | MessageID = 0xb04aea2d | vkCreateInstance: pCreateInfo->pNext chain includes a structure with unexpected VkStructureType VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DYNAMIC_RENDERING_FEATURES; Allowed structures are [VkDebugReportCallbackCreateInfoEXT, VkDebugUtilsMessengerCreateInfoEXT, VkValidationFeaturesEXT, VkValidationFlagsEXT]. This error is based on the Valid Usage documentation for version 204 of the Vulkan header.  It is possible that you are using a struct from a private extension or an extension that was added to a later version of the Vulkan header, in which case the use of pCreateInfo->pNext is undefined and may not work correctly with validation enabled The Vulkan spec states: Each pNext member of any structure (including this one) in the pNext chain must be either NULL or a pointer to a valid instance of VkDebugReportCallbackCreateInfoEXT, VkDebugUtilsMessengerCreateInfoEXT, VkValidationFeaturesEXT, or VkValidationFlagsEXT (https://vulkan.lunarg.com/doc/view/1.3.204.1/linux/1.3-extensions/vkspec.html#VUID-VkInstanceCreateInfo-pNext-pNext)
Objects: 1
[0] 0, type: 3, name: NULL
VUID-VkInstanceCreateInfo-pNext-pNext(ERROR / SPEC): msgNum: -1337267667 - Validation Error: [ VUID-VkInstanceCreateInfo-pNext-pNext ] Object 0: VK_NULL_HANDLE, type = VK_OBJECT_TYPE_INSTANCE; | MessageID = 0xb04aea2d | vkCreateInstance: Includes a pNext pointer (pCreateInfo->pNext) to a VkStructureType (VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DYNAMIC_RENDERING_FEATURES), but its parent extension VK_KHR_dynamic_rendering has not been enabled. The Vulkan spec states: Each pNext member of any structure (including this one) in the pNext chain must be either NULL or a pointer to a valid instance of VkDebugReportCallbackCreateInfoEXT, VkDebugUtilsMessengerCreateInfoEXT, VkValidationFeaturesEXT, or VkValidationFlagsEXT (https://vulkan.lunarg.com/doc/view/1.3.204.1/linux/1.3-extensions/vkspec.html#VUID-VkInstanceCreateInfo-pNext-pNext)
Objects: 1
[0] 0, type: 1, name: NULL

我的驱动程序、标头和验证层是最新版本的1.3.204。

如果我没有；t启用层并运行我的代码，一切似乎都很好，我可以调整窗口大小，渲染也会按预期更新。这是验证层中的错误吗？

一些研究建议我应该这样做：

const std::vector<const char*> device_extensions = {
VK_KHR_SWAPCHAIN_EXTENSION_NAME,
VK_KHR_DYNAMIC_RENDERING_EXTENSION_NAME,
VK_EXT_EXTENDED_DYNAMIC_STATE_EXTENSION_NAME,
};
vk::PhysicalDeviceDynamicRenderingFeaturesKHR dynamic_rendering = {};
dynamic_rendering.dynamicRendering = true;
// Get the features of the selected device.
vk::PhysicalDeviceFeatures device_features = phys_device.getFeatures();
// The enabledLayerCount and ppEnabledLayerNames parameters are deprecated,
// they should always be 0 and nullptr.
// https://www.khronos.org/registry/vulkan/specs/1.1-extensions/man/html/VkDeviceCreateInfo.html
vk::DeviceCreateInfo create_info = {};
create_info.pNext = &dynamic_rendering;
create_info.queueCreateInfoCount = queue_create_infos.size();
create_info.pQueueCreateInfos = queue_create_infos.data();
create_info.enabledLayerCount = 0;
create_info.ppEnabledLayerNames = nullptr;
create_info.enabledExtensionCount = device_extensions.size();
create_info.ppEnabledExtensionNames = device_extensions.data();
create_info.pEnabledFeatures = &device_features;

但这返回了以下错误：

Message ID name: VUID-VkGraphicsPipelineCreateInfo-dynamicRendering-06052
Message: Validation Error: [ VUID-VkGraphicsPipelineCreateInfo-dynamicRendering-06052 ] Object 0: handle = 0x2357fc0, name = Logical device: NVIDIA GeForce GTX 1070, type = VK_OBJECT_TYPE_DEVICE; | MessageID = 0xdf901c9e | vkCreateGraphicsPipeline: pCreateInfos[0].renderPass is VK_NULL_HANDLE but dynamicRendering is not enabled. The Vulkan spec states: If the dynamicRendering feature is not enabled, renderPass must not be VK_NULL_HANDLE (https://vulkan.lunarg.com/doc/view/1.3.204.1/linux/1.3-extensions/vkspec.html#VUID-VkGraphicsPipelineCreateInfo-dynamicRendering-06052)

我没有；我不明白，我正在启用扩展。

根据评论中的建议，我看到的是：

vkCreateDevice(physicalDevice, pCreateInfo, pAllocator, pDevice) returns VkResult VK_SUCCESS (0):
physicalDevice:                 VkPhysicalDevice = 0x32f85c0
pCreateInfo:                    const VkDeviceCreateInfo* = 0x7fff0d9dbb20:
sType:                          VkStructureType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO (3)
pNext:                          const void* = NULL

这似乎表明pNext设置不正确。

Answer 1

您可能需要将VK_KHR_DYNAMIC_RENDERING_EXTENSION_NAME添加到device_extensions列表中。您没有显示设置该列表的代码。剩下的看起来还可以。

即使没有启用，驾驶员也会继续使用所需的功能，这并不罕见。但由于这可能会因驱动程序而异，因此最好启用所需的扩展和功能。