C Specification

To set the state of an event to signaled from a device, call:

// Provided by VK_VERSION_1_0
void vkCmdSetEvent(
    VkCommandBuffer                             commandBuffer,
    VkEvent                                     event,
    VkPipelineStageFlags                        stageMask);

Parameters

  • commandBuffer is the command buffer into which the command is recorded.

  • event is the event that will be signaled.

  • stageMask specifies the source stage mask used to determine the first synchronization scope.

Description

vkCmdSetEvent behaves identically to vkCmdSetEvent2, except that it does not define an access scope, and must only be used with vkCmdWaitEvents, not vkCmdWaitEvents2.

Valid Usage
Valid Usage (Implicit)

  • VUID-vkCmdSetEvent-commandBuffer-parameter
    commandBuffer must be a valid VkCommandBuffer handle

  • VUID-vkCmdSetEvent-event-parameter
    event must be a valid VkEvent handle

  • VUID-vkCmdSetEvent-stageMask-parameter
    stageMask must be a valid combination of VkPipelineStageFlagBits values

  • VUID-vkCmdSetEvent-commandBuffer-recording
    commandBuffer must be in the recording state

  • VUID-vkCmdSetEvent-commandBuffer-cmdpool
    The VkCommandPool that commandBuffer was allocated from must support VK_QUEUE_COMPUTE_BIT, VK_QUEUE_GRAPHICS_BIT, VK_QUEUE_VIDEO_DECODE_BIT_KHR, or VK_QUEUE_VIDEO_ENCODE_BIT_KHR operations

  • VUID-vkCmdSetEvent-renderpass
    This command must only be called outside of a render pass instance

  • VUID-vkCmdSetEvent-suspended
    This command must not be called between suspended render pass instances

  • VUID-vkCmdSetEvent-commonparent
    Both of commandBuffer, and event must have been created, allocated, or retrieved from the same VkDevice

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
Command Buffer Levels Render Pass Scope Video Coding Scope Supported Queue Types Command Type

Primary
Secondary

Outside

Both

VK_QUEUE_COMPUTE_BIT
VK_QUEUE_GRAPHICS_BIT
VK_QUEUE_VIDEO_DECODE_BIT_KHR
VK_QUEUE_VIDEO_ENCODE_BIT_KHR

Synchronization
Conditional Rendering

vkCmdSetEvent is not affected by conditional rendering

See Also

VK_VERSION_1_0, VkCommandBuffer, VkEvent, VkPipelineStageFlags

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