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);


  • 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.


When vkCmdSetEvent is submitted to a queue, it defines an execution dependency on commands that were submitted before it, and defines an event signal operation which sets the event to the signaled state.

The first synchronization scope includes all commands that occur earlier in submission order. The synchronization scope is limited to operations on the pipeline stages determined by the source stage mask specified by stageMask.

The second synchronization scope includes only the event signal operation.

If event is already in the signaled state when vkCmdSetEvent is executed on the device, then vkCmdSetEvent has no effect, no event signal operation occurs, and no execution dependency is generated.

Valid Usage
  • VUID-vkCmdSetEvent-stageMask-04090
    If the geometry shaders feature is not enabled, stageMask must not contain VK_PIPELINE_STAGE_GEOMETRY_SHADER_BIT

  • VUID-vkCmdSetEvent-stageMask-04091
    If the tessellation shaders feature is not enabled, stageMask must not contain VK_PIPELINE_STAGE_TESSELLATION_CONTROL_SHADER_BIT or VK_PIPELINE_STAGE_TESSELLATION_EVALUATION_SHADER_BIT

  • VUID-vkCmdSetEvent-stageMask-04092
    If the conditional rendering feature is not enabled, stageMask must not contain VK_PIPELINE_STAGE_CONDITIONAL_RENDERING_BIT_EXT

  • VUID-vkCmdSetEvent-stageMask-04093
    If the fragment density map feature is not enabled, stageMask must not contain VK_PIPELINE_STAGE_FRAGMENT_DENSITY_PROCESS_BIT_EXT

  • VUID-vkCmdSetEvent-stageMask-04094
    If the transform feedback feature is not enabled, stageMask must not contain VK_PIPELINE_STAGE_TRANSFORM_FEEDBACK_BIT_EXT

  • VUID-vkCmdSetEvent-stageMask-04095
    If the mesh shaders feature is not enabled, stageMask must not contain VK_PIPELINE_STAGE_MESH_SHADER_BIT_NV

  • VUID-vkCmdSetEvent-stageMask-04096
    If the task shaders feature is not enabled, stageMask must not contain VK_PIPELINE_STAGE_TASK_SHADER_BIT_NV

  • VUID-vkCmdSetEvent-stageMask-04097
    If the shading rate image feature is not enabled, stageMask must not contain VK_PIPELINE_STAGE_SHADING_RATE_IMAGE_BIT_NV

  • VUID-vkCmdSetEvent-stageMask-4098
    Any pipeline stage included in stageMask must be supported by the capabilities of the queue family specified by the queueFamilyIndex member of the VkCommandPoolCreateInfo structure that was used to create the VkCommandPool that commandBuffer was allocated from, as specified in the table of supported pipeline stages

  • VUID-vkCmdSetEvent-stageMask-01149
    stageMask must not include VK_PIPELINE_STAGE_HOST_BIT

  • VUID-vkCmdSetEvent-commandBuffer-01152
    commandBuffer’s current device mask must include exactly one physical device

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-stageMask-requiredbitmask
    stageMask must not be 0

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

  • VUID-vkCmdSetEvent-commandBuffer-cmdpool
    The VkCommandPool that commandBuffer was allocated from must support graphics, or compute operations

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

  • 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 Supported Queue Types Pipeline Type




See Also

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 (c) 2014-2020 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0