# VK_EXT_primitive_restart_index(3) Manual Page

## Name

VK_EXT_primitive_restart_index - device extension

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## Registered Extension Number

679

## Revision

1

## Ratification Status

Not ratified

## Extension and Version Dependencies

VK_KHR_get_physical_device_properties2
or
Vulkan Version 1.1

## Special Use

- OpenGL / ES support

## Contact

- Mike Blumenkrantz [GitHub]zmike

## Extension Proposal

VK_EXT_primitive_restart_index

## Other Extension Metadata

Last Modified Date

  2026-03-10

IP Status

  No known IP claims.

Contributors

  - Mike Blumenkrantz, Valve

  - Spencer Fricke, LunarG

  - Ricardo Garcia, Igalia

  - Piers Daniell, NVIDIA

## Description

This extension allows setting a custom primitive restart index. It is primarily intended to support GL emulation.

## New Commands

- vkCmdSetPrimitiveRestartIndexEXT

## New Structures

- Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:

  - VkPhysicalDevicePrimitiveRestartIndexFeaturesEXT

## New Enum Constants

- `VK_EXT_PRIMITIVE_RESTART_INDEX_EXTENSION_NAME`

- `VK_EXT_PRIMITIVE_RESTART_INDEX_SPEC_VERSION`

- Extending VkStructureType:

  - VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PRIMITIVE_RESTART_INDEX_FEATURES_EXT

## Version History

- Revision 1, 2026-03-10 (Mike Blumenkrantz)

  - 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 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0