C Specification

The VkPhysicalDeviceBufferAddressFeaturesEXT structure is defined as:

typedef struct VkPhysicalDeviceBufferAddressFeaturesEXT {
    VkStructureType    sType;
    void*              pNext;
    VkBool32           bufferDeviceAddress;
    VkBool32           bufferDeviceAddressCaptureReplay;
    VkBool32           bufferDeviceAddressMultiDevice;
} VkPhysicalDeviceBufferAddressFeaturesEXT;


The members of the VkPhysicalDeviceBufferAddressFeaturesEXT structure describe the following features:


  • bufferDeviceAddress indicates that the implementation supports accessing buffer memory in shaders as storage buffers via an address queried from vkGetBufferDeviceAddressEXT.

  • bufferDeviceAddressCaptureReplay indicates that the implementation supports saving and reusing buffer addresses, e.g. for trace capture and replay.

  • bufferDeviceAddressMultiDevice indicates that the implementation supports the bufferDeviceAddress feature for logical devices created with multiple physical devices. If this feature is not supported, buffer addresses must not be queried on a logical device created with more than one physical device.


bufferDeviceAddressMultiDevice exists to allow certain legacy platforms to be able to support bufferDeviceAddress without needing to support shared GPU virtual addresses for multi-device configurations.

See vkGetBufferDeviceAddressEXT for more information.

If the VkPhysicalDeviceBufferAddressFeaturesEXT structure is included in the pNext chain of VkPhysicalDeviceFeatures2KHR, it is filled with values indicating whether the feature is supported. VkPhysicalDeviceBufferAddressFeaturesEXT can also be used in the pNext chain of VkDeviceCreateInfo to enable features.

Valid Usage (Implicit)

See Also

VkBool32, VkStructureType

Document Notes

For more information, see the Vulkan Specification at URL

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

Copyright (c) 2014-2019 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.