# VkPhysicalDeviceLegacyVertexAttributesPropertiesEXT(3) Manual Page

## Name

VkPhysicalDeviceLegacyVertexAttributesPropertiesEXT - Structure describing properties for legacy vertex attributes

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## C Specification

The `VkPhysicalDeviceLegacyVertexAttributesPropertiesEXT` structure is defined as:

    // Provided by VK_EXT_legacy_vertex_attributes
    typedef struct VkPhysicalDeviceLegacyVertexAttributesPropertiesEXT {
        VkStructureType    sType;
        void*              pNext;
        VkBool32           nativeUnalignedPerformance;
    } VkPhysicalDeviceLegacyVertexAttributesPropertiesEXT;

## Members

This structure describes the following features:

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

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

- `nativeUnalignedPerformance` specifies whether unaligned vertex fetches do not incur significant performance penalties as compared to aligned fetches.

## Description

If the `VkPhysicalDeviceLegacyVertexAttributesPropertiesEXT` structure is included in the `pNext` chain of the VkPhysicalDeviceFeatures2 structure passed to vkGetPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. `VkPhysicalDeviceLegacyVertexAttributesPropertiesEXT` can also be used in the `pNext` chain of VkDeviceCreateInfo to selectively enable these features.

Valid Usage (Implicit)

- VUID-VkPhysicalDeviceLegacyVertexAttributesPropertiesEXT-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_LEGACY_VERTEX_ATTRIBUTES_PROPERTIES_EXT`

## See Also

VK_EXT_legacy_vertex_attributes, VkBool32, 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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0