VK_EXT_rasterization_order_attachment_access(3)

# VK_EXT_rasterization_order_attachment_access(3) Manual Page

## Name

VK_EXT_rasterization_order_attachment_access - device extension

## Registered Extension Number

464

## Revision

1

## Ratification Status

Ratified

## Extension and Version Dependencies

VK_KHR_get_physical_device_properties2
or
Vulkan Version 1.1

## Contact

- Jan-Harald Fredriksen [GitHub]janharaldfredriksen-arm

## Extension Proposal

VK_EXT_rasterization_order_attachment_access

## Other Extension Metadata

Last Modified Date

  2026-01-16

IP Status

  No known IP claims.

Contributors

  - Tobias Hector, AMD

  - Jan-Harald Fredriksen, Arm

## Description

This extension extends the mechanism of input attachments to allow access to framebuffer attachments that are used both as input and as color or depth/stencil attachments from one fragment to the next, in rasterization order, without explicit synchronization.

## New Structures

- Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:

  - VkPhysicalDeviceRasterizationOrderAttachmentAccessFeaturesEXT

## New Enums

- VkPipelineColorBlendStateCreateFlagBits

- VkPipelineDepthStencilStateCreateFlagBits

## New Enum Constants

- `VK_EXT_RASTERIZATION_ORDER_ATTACHMENT_ACCESS_EXTENSION_NAME`

- `VK_EXT_RASTERIZATION_ORDER_ATTACHMENT_ACCESS_SPEC_VERSION`

- Extending VkPipelineColorBlendStateCreateFlagBits:

  - VK_PIPELINE_COLOR_BLEND_STATE_CREATE_RASTERIZATION_ORDER_ATTACHMENT_ACCESS_BIT_EXT

- Extending VkPipelineDepthStencilStateCreateFlagBits:

  - VK_PIPELINE_DEPTH_STENCIL_STATE_CREATE_RASTERIZATION_ORDER_ATTACHMENT_DEPTH_ACCESS_BIT_EXT

  - VK_PIPELINE_DEPTH_STENCIL_STATE_CREATE_RASTERIZATION_ORDER_ATTACHMENT_STENCIL_ACCESS_BIT_EXT

- Extending VkStructureType:

  - VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_RASTERIZATION_ORDER_ATTACHMENT_ACCESS_FEATURES_EXT

- Extending VkSubpassDescriptionFlagBits:

  - VK_SUBPASS_DESCRIPTION_RASTERIZATION_ORDER_ATTACHMENT_COLOR_ACCESS_BIT_EXT

  - VK_SUBPASS_DESCRIPTION_RASTERIZATION_ORDER_ATTACHMENT_DEPTH_ACCESS_BIT_EXT

  - VK_SUBPASS_DESCRIPTION_RASTERIZATION_ORDER_ATTACHMENT_STENCIL_ACCESS_BIT_EXT

## Examples

None.

## Version History

- Revision 1, 2022-07-04 (Jan-Harald Fredriksen)

  - Initial draft

  - Updated Issues section 2026-01-16

## 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