public Class EXTAttachmentFeedbackLoopDynamicState

Extends VkDynamicState.

The extension name.

The extension specification version.

Extends VkStructureType.

Specify whether attachment feedback loops are enabled dynamically on a command buffer.

C Specification

To dynamically set whether a pipeline can access a resource as a non-attachment while it is also used as an attachment that is written to, call:

void vkCmdSetAttachmentFeedbackLoopEnableEXT(
    VkCommandBuffer                             commandBuffer,
    VkImageAspectFlags                          aspectMask);

Description

For attachments that are written to in a render pass, only attachments with the aspects specified in aspectMask can be accessed as non-attachments by subsequent drawing commands.

Valid Usage

• The attachmentFeedbackLoopDynamicState feature must be enabled
• aspectMask must only include IMAGE_ASPECT_NONE, IMAGE_ASPECT_COLOR_BIT, IMAGE_ASPECT_DEPTH_BIT, and IMAGE_ASPECT_STENCIL_BIT
• If the attachmentFeedbackLoopLayout feature is not enabled, aspectMask must be IMAGE_ASPECT_NONE

Valid Usage (Implicit)

• commandBuffer must be a valid VkCommandBuffer handle
• aspectMask must be a valid combination of VkImageAspectFlagBits values
• commandBuffer must be in the recording state
• The VkCommandPool that commandBuffer was allocated from must support graphics operations
• This command must only be called outside of a video coding scope

Host Synchronization

• Host access to commandBuffer must be externally synchronized
• Host access to the VkCommandPool that commandBuffer was allocated from must be externally synchronized

Command Properties

Parameters

commandBuffer:VkCommandBuffer

the command buffer into which the command will be recorded.

aspectMask:int

specifies the types of attachments for which feedback loops will be enabled. Attachment types whose aspects are not included in aspectMask will have feedback loops disabled.