VkPhysicalDeviceRobustness2PropertiesKHR(3)

# VkPhysicalDeviceRobustness2PropertiesKHR(3) Manual Page

## Name

VkPhysicalDeviceRobustness2PropertiesKHR - Structure describing robust buffer access properties supported by an implementation

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## C Specification

The `VkPhysicalDeviceRobustness2PropertiesKHR` structure is defined as:

    // Provided by VK_KHR_robustness2
    typedef struct VkPhysicalDeviceRobustness2PropertiesKHR {
        VkStructureType    sType;
        void*              pNext;
        VkDeviceSize       robustStorageBufferAccessSizeAlignment;
        VkDeviceSize       robustUniformBufferAccessSizeAlignment;
    } VkPhysicalDeviceRobustness2PropertiesKHR;

or the equivalent

    // Provided by VK_EXT_robustness2
    typedef VkPhysicalDeviceRobustness2PropertiesKHR VkPhysicalDeviceRobustness2PropertiesEXT;

## Members

- `sType` is a VkStructureType value identifying this structure.

- `pNext` is `NULL` or a pointer to a structure extending this structure.

- `robustStorageBufferAccessSizeAlignment` is the number of bytes that the range of a storage buffer descriptor is rounded up to when used for bounds-checking when the `robustBufferAccess2` feature is enabled. This value must be either 1 or 4.

- `robustUniformBufferAccessSizeAlignment` is the number of bytes that the range of a uniform buffer descriptor is rounded up to when used for bounds-checking when the `robustBufferAccess2` feature is enabled. This value must be a power of two in the range [1, 256].

## Description

If the `VkPhysicalDeviceRobustness2PropertiesKHR` structure is included in the `pNext` chain of the VkPhysicalDeviceProperties2 structure passed to vkGetPhysicalDeviceProperties2, it is filled in with each corresponding implementation-dependent property.

Valid Usage (Implicit)

- VUID-VkPhysicalDeviceRobustness2PropertiesKHR-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ROBUSTNESS_2_PROPERTIES_KHR`

## See Also

VK_KHR_robustness2, VkDeviceSize, VkStructureType

## Document Notes

For more information, see the Vulkan Specification

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

## Copyright

Copyright 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0