在创建图形管道时，

VkPipelineDynamicStateCreateInfo.pDynamicStates = { VK_DYNAMIC_STATE_PRIMITIVE_TOPOLOGY };

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（将其设置为VK_DYNAMIC_STATE_PRIMITIVE_TOPOLOGY_EXT没有区别，它们在我的计算机上是相同的值）并在创建VkDevice时启用extendedDynamicState功能：

uint32_t deviceExtensionCount = 1;
const char* deviceExtensions[] = { "VK_KHR_swapchain", "VK_EXT_extended_dynamic_state" };
const float queuePriority[] = { 1.0f };

VkPhysicalDeviceFeatures features;
vkGetPhysicalDeviceFeatures(s_VkData.PhysicalDevice, &features);

VkPhysicalDeviceExtendedDynamicStateFeaturesEXT featuresEXT{};
featuresEXT.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTENDED_DYNAMIC_STATE_FEATURES_EXT;
featuresEXT.extendedDynamicState = VK_TRUE;

VkPhysicalDeviceFeatures2 features2{};
features2.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;
features2.features = features;
features2.pNext = &featuresEXT;

VkDeviceQueueCreateInfo queueInfo[1] = {};
queueInfo[0].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
queueInfo[0].queueFamilyIndex = s_VkData.QueueFamily;
queueInfo[0].queueCount = 1;
queueInfo[0].pQueuePriorities = queuePriority;

VkDeviceCreateInfo deviceInfo{};
deviceInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
deviceInfo.queueCreateInfoCount = sizeof(queueInfo) / sizeof(queueInfo[0]);
deviceInfo.pQueueCreateInfos = queueInfo;
deviceInfo.enabledExtensionCount = deviceExtensionCount;
deviceInfo.ppEnabledExtensionNames = deviceExtensions;
deviceInfo.pNext = &features2;
VkResult result = vkCreateDevice(PhysicalDevice, &deviceInfo, s_VkData.Allocator, &s_VkData.Device);
CheckVkResult(result);

型
但是当我调用vkCmdSetPrimitiveTopology或vkCmdSetPrimitiveTopologyEXT记录命令缓冲区时，我得到了一个访问冲突异常。我的命令缓冲区是有效的（用visual studio的调试器检查了这个），我没有得到任何验证错误。用vkGetInstanceProcAddr加载vkCmdSetPrimitiveTopologyEXT不会改变这个结果。