VKSTRUCTURETYPEDEVICECREATEINFO

VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO is the VkStructureType value that identifies the VkDeviceCreateInfo structure in Vulkan. It is used by setting the sType field of VkDeviceCreateInfo to VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO, indicating to the driver that the provided structure describes parameters for creating a logical device. The VkDeviceCreateInfo structure, in turn, contains all information needed by vkCreateDevice to create a logical device from a physical device.

The VkDeviceCreateInfo structure includes several members. The pNext field can point to a chain of extension-specific structures to enable features beyond the core specification, or be NULL if no extensions are used. The flags field is reserved for future use. The queueCreateInfoCount and pQueueCreateInfos describe one or more queues to create on the new device, via VkDeviceQueueCreateInfo structures. The enabledLayerCount and ppEnabledLayerNames fields (now largely deprecated) historically specified validation layers to enable during device creation. The enabledExtensionCount and ppEnabledExtensionNames specify device extensions to enable on the logical device. The pEnabledFeatures member points to a VkPhysicalDeviceFeatures structure describing which core features to enable; in modern usage, similar feature requirements may be provided through the pNext extension chain (for example, via VkPhysicalDeviceFeatures2).

VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO is used exclusively with the vkCreateDevice function. A correctly filled VkDeviceCreateInfo is essential for successful logical device creation, as it determines the device’s queue configuration, enabled capabilities, and available extensions. See also VkDevice, VkDeviceQueueCreateInfo, VkPhysicalDeviceFeatures, and vkCreateDevice.