VK_KHR_dynamic_rendering_local_read

Other Extension Metadata

Last Modified Date

2023-11-03

Contributors

Tobias Hector, AMD
Hans-Kristian Arntzen, Valve
Connor Abbott, Valve
Pan Gao, Huawei
Lionel Landwerlin, Intel
Shahbaz Youssefi, Google
Alyssa Rosenzweig, Valve
Jan-Harald Fredriksen, Arm
Mike Blumenkrantz, Valve
Graeme Leese, Broadcom
Piers Daniell, Nvidia
Stuart Smith, AMD
Daniel Story, Nintendo
James Fitzpatrick, Imagination
Piotr Byszewski, Mobica
Spencer Fricke, LunarG
Tom Olson, Arm
Michal Pietrasiuk, Intel
Matthew Netsch, Qualcomm
Marty Johnson, Khronos
Wyvern Wang, Huawei
Jeff Bolz, Nvidia
Samuel (Sheng-Wen) Huang, MediaTek

Description

This extension enables reads from attachments and resources written by previous fragment shaders within a dynamic render pass.

New Enum Constants

VK_KHR_DYNAMIC_RENDERING_LOCAL_READ_EXTENSION_NAME
VK_KHR_DYNAMIC_RENDERING_LOCAL_READ_SPEC_VERSION
Extending VkImageLayout:
- VK_IMAGE_LAYOUT_RENDERING_LOCAL_READ_KHR
Extending VkStructureType:
- VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DYNAMIC_RENDERING_LOCAL_READ_FEATURES_KHR
- VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_LOCATION_INFO_KHR
- VK_STRUCTURE_TYPE_RENDERING_INPUT_ATTACHMENT_INDEX_INFO_KHR

Functionality in this extension is included in core Vulkan 1.4, with the KHR suffix omitted. However, Vulkan 1.4 implementations only have to support local read for storage resources and single sampled color attachments.

Support for reading depth/stencil attachments and multi-sampled attachments are respectively gated behind the new boolean dynamicRenderingLocalReadDepthStencilAttachments and dynamicRenderingLocalReadMultisampledAttachments properties, as described in the Version 1.4 appendix.

The original type, enum, and command names are still available as aliases of the core functionality.

Version History

Revision 1, 2023-11-03 (Tobias Hector)
- Initial revision