C Specification

To copy a micromap call:

// Provided by VK_EXT_opacity_micromap
void vkCmdCopyMicromapEXT(
    VkCommandBuffer                             commandBuffer,
    const VkCopyMicromapInfoEXT*                pInfo);


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

  • pInfo is a pointer to a VkCopyMicromapInfoEXT structure defining the copy operation.


This command copies the pInfo->src micromap to the pInfo->dst micromap in the manner specified by pInfo->mode.

Accesses to pInfo->src and pInfo->dst must be synchronized with the VK_PIPELINE_STAGE_2_MICROMAP_BUILD_BIT_EXT pipeline stage and an access type of VK_ACCESS_2_MICROMAP_READ_BIT_EXT or VK_ACCESS_2_MICROMAP_WRITE_BIT_EXT as appropriate.

Valid Usage
  • VUID-vkCmdCopyMicromapEXT-buffer-07529
    The buffer used to create pInfo->src must be bound to device memory

  • VUID-vkCmdCopyMicromapEXT-buffer-07530
    The buffer used to create pInfo->dst must be bound to device memory

Valid Usage (Implicit)
  • VUID-vkCmdCopyMicromapEXT-commandBuffer-parameter
    commandBuffer must be a valid VkCommandBuffer handle

  • VUID-vkCmdCopyMicromapEXT-pInfo-parameter
    pInfo must be a valid pointer to a valid VkCopyMicromapInfoEXT structure

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

  • VUID-vkCmdCopyMicromapEXT-commandBuffer-cmdpool
    The VkCommandPool that commandBuffer was allocated from must support compute operations

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

  • VUID-vkCmdCopyMicromapEXT-videocoding
    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
Command Buffer Levels Render Pass Scope Video Coding Scope Supported Queue Types Command 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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0