VkDependencyFlagBits(3)

# VkDependencyFlagBits(3) Manual Page

## Name

VkDependencyFlagBits - Bitmask specifying how execution and memory dependencies are formed

## C Specification

Bits which can be set in `vkCmdPipelineBarrier`::`dependencyFlags`, specifying how execution and memory dependencies are formed, are:

    // Provided by VK_VERSION_1_0
    typedef enum VkDependencyFlagBits {
        VK_DEPENDENCY_BY_REGION_BIT = 0x00000001,
      // Provided by VK_VERSION_1_1
        VK_DEPENDENCY_DEVICE_GROUP_BIT = 0x00000004,
      // Provided by VK_VERSION_1_1
        VK_DEPENDENCY_VIEW_LOCAL_BIT = 0x00000002,
      // Provided by VK_EXT_attachment_feedback_loop_layout
        VK_DEPENDENCY_FEEDBACK_LOOP_BIT_EXT = 0x00000008,
      // Provided by VK_KHR_maintenance8
        VK_DEPENDENCY_QUEUE_FAMILY_OWNERSHIP_TRANSFER_USE_ALL_STAGES_BIT_KHR = 0x00000020,
      // Provided by VK_KHR_maintenance9
        VK_DEPENDENCY_ASYMMETRIC_EVENT_BIT_KHR = 0x00000040,
      // Provided by VK_KHR_multiview
        VK_DEPENDENCY_VIEW_LOCAL_BIT_KHR = VK_DEPENDENCY_VIEW_LOCAL_BIT,
      // Provided by VK_KHR_device_group
        VK_DEPENDENCY_DEVICE_GROUP_BIT_KHR = VK_DEPENDENCY_DEVICE_GROUP_BIT,
    } VkDependencyFlagBits;

## Description

- VK_DEPENDENCY_BY_REGION_BIT specifies that dependencies will be split into multiple framebuffer-local regions according to the (x,y,layer,sample) coordinates.

- VK_DEPENDENCY_VIEW_LOCAL_BIT specifies that dependencies will be split into multiple framebuffer-local regions according to the view.

- VK_DEPENDENCY_DEVICE_GROUP_BIT specifies that dependencies are non-device-local.

- VK_DEPENDENCY_FEEDBACK_LOOP_BIT_EXT specifies that the render pass will write to and read from the same image with feedback loop enabled.

- VK_DEPENDENCY_QUEUE_FAMILY_OWNERSHIP_TRANSFER_USE_ALL_STAGES_BIT_KHR specifies that source and destination stages are not ignored when performing a queue family ownership transfer.

- VK_DEPENDENCY_ASYMMETRIC_EVENT_BIT_KHR specifies that the access scopes of vkCmdSetEvent2 and vkCmdWaitEvents2 do not need to match for a given event when it is specified in both commands, and the access scope of vkCmdSetEvent2 is empty.

## See Also

VK_VERSION_1_0, VkDependencyFlags

## Document Notes

For more information, see the Vulkan Specification.

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0