Registered Extension Number

340

Revision

2

Extension and Version Dependencies

Contact

Extension Proposal

Other Extension Metadata

Last Modified Date

2022-04-04

IP Status

No known IP claims.

Contributors
  • Joshua Ashton, Valve

  • Jason Ekstrand, Collabora

  • Bas Nieuwenhuizen, Google

  • Samuel Iglesias Gonsálvez, Igalia

  • Ralph Potter, Samsung

  • Jan-Harald Fredriksen, Arm

  • Ricardo Garcia, Igalia

Description

This extension adds a new image layout, VK_IMAGE_LAYOUT_ATTACHMENT_FEEDBACK_LOOP_OPTIMAL_EXT, which allows applications to have an image layout in which they are able to both render to and sample/fetch from the same subresource of an image in a given render pass.

New Structures

New Enum Constants

  • VK_EXT_ATTACHMENT_FEEDBACK_LOOP_LAYOUT_EXTENSION_NAME

  • VK_EXT_ATTACHMENT_FEEDBACK_LOOP_LAYOUT_SPEC_VERSION

  • Extending VkDependencyFlagBits:

    • VK_DEPENDENCY_FEEDBACK_LOOP_BIT_EXT

  • Extending VkImageLayout:

    • VK_IMAGE_LAYOUT_ATTACHMENT_FEEDBACK_LOOP_OPTIMAL_EXT

  • Extending VkImageUsageFlagBits:

    • VK_IMAGE_USAGE_ATTACHMENT_FEEDBACK_LOOP_BIT_EXT

  • Extending VkPipelineCreateFlagBits:

    • VK_PIPELINE_CREATE_COLOR_ATTACHMENT_FEEDBACK_LOOP_BIT_EXT

    • VK_PIPELINE_CREATE_DEPTH_STENCIL_ATTACHMENT_FEEDBACK_LOOP_BIT_EXT

  • Extending VkStructureType:

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ATTACHMENT_FEEDBACK_LOOP_LAYOUT_FEATURES_EXT

Version History

  • Revision 2, 2022-04-04 (Joshua Ashton)

    • Renamed from VALVE to EXT.

  • Revision 1, 2021-03-09 (Joshua Ashton)

    • Initial draft.

See Also

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 2014-2022 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0