VkCopyMicromapToMemoryInfoEXT(3)

# VkCopyMicromapToMemoryInfoEXT(3) Manual Page

## Name

VkCopyMicromapToMemoryInfoEXT - Parameters for serializing a micromap

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## C Specification

    // Provided by VK_EXT_opacity_micromap
    typedef struct VkCopyMicromapToMemoryInfoEXT {
        VkStructureType             sType;
        const void*                 pNext;
        VkMicromapEXT               src;
        VkDeviceOrHostAddressKHR    dst;
        VkCopyMicromapModeEXT       mode;
    } VkCopyMicromapToMemoryInfoEXT;

## Members

- `sType` is a VkStructureType value identifying this structure.

- `pNext` is `NULL` or a pointer to a structure extending this structure.

- `src` is the source micromap for the copy

- `dst` is the device or host address of memory which is the target for the copy

- `mode` is a VkCopyMicromapModeEXT value specifying additional operations to perform during the copy.

## Description

Valid Usage

- VUID-VkCopyMicromapToMemoryInfoEXT-src-07540
  The source micromap `src` must have been constructed prior to the execution of this command

- VUID-VkCopyMicromapToMemoryInfoEXT-dst-07541
  The memory pointed to by `dst` must be at least as large as the serialization size of `src`, as reported by vkWriteMicromapsPropertiesEXT or vkCmdWriteMicromapsPropertiesEXT with a query type of VK_QUERY_TYPE_MICROMAP_SERIALIZATION_SIZE_EXT

- VUID-VkCopyMicromapToMemoryInfoEXT-mode-07542
  `mode` must be VK_COPY_MICROMAP_MODE_SERIALIZE_EXT

Valid Usage (Implicit)

- VUID-VkCopyMicromapToMemoryInfoEXT-sType-sType
  `sType` must be VK_STRUCTURE_TYPE_COPY_MICROMAP_TO_MEMORY_INFO_EXT

- VUID-VkCopyMicromapToMemoryInfoEXT-pNext-pNext
  `pNext` must be `NULL`

- VUID-VkCopyMicromapToMemoryInfoEXT-src-parameter
  `src` must be a valid VkMicromapEXT handle

- VUID-VkCopyMicromapToMemoryInfoEXT-mode-parameter
  `mode` must be a valid VkCopyMicromapModeEXT value

## See Also

VK_EXT_opacity_micromap, VkCopyMicromapModeEXT, VkDeviceOrHostAddressKHR, VkMicromapEXT, VkStructureType, vkCmdCopyMicromapToMemoryEXT, vkCopyMicromapToMemoryEXT

## 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