# VK_EXT_vertex_attribute_robustness(3) Manual Page

## Name

VK_EXT_vertex_attribute_robustness - device extension

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## Registered Extension Number

609

## Revision

1

## Ratification Status

Not ratified

## Extension and Version Dependencies

VK_KHR_get_physical_device_properties2
or
Vulkan Version 1.1

## Deprecation State

- Promoted to VK_KHR_maintenance9 extension

## Contact

- Piers Daniell [GitHub]pdaniell-nv

## Other Extension Metadata

Last Modified Date

  2024-11-01

IP Status

  No known IP claims.

Contributors

  - Daniel Story, Nintendo

## Description

It can be detrimental to performance for applications to have to define fake vertex attribute locations and buffer bindings for vertex shaders that may reference attribute locations for which there is no vertex data.

This extension allows applications to not have to specify fake vertex attribute locations, and if the vertex shader reads those attributes it will read (0,0,0,0) or (0,0,0,1).

## New Structures

- Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:

  - VkPhysicalDeviceVertexAttributeRobustnessFeaturesEXT

## New Enum Constants

- `VK_EXT_VERTEX_ATTRIBUTE_ROBUSTNESS_EXTENSION_NAME`

- `VK_EXT_VERTEX_ATTRIBUTE_ROBUSTNESS_SPEC_VERSION`

- Extending VkStructureType:

  - `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VERTEX_ATTRIBUTE_ROBUSTNESS_FEATURES_EXT`

## Issues

None

## Version History

- Revision 1, 2024-11-01 (Piers Daniell)

  - Internal revisions

## See Also

No cross-references are available

## Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

## Copyright

Copyright 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0