# VkOpaqueCaptureDescriptorDataCreateInfoEXT(3) Manual Page

## Name

VkOpaqueCaptureDescriptorDataCreateInfoEXT - Structure specifying opaque capture descriptor data

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## C Specification

The `VkOpaqueCaptureDescriptorDataCreateInfoEXT` structure is defined as:

Warning | This functionality is superseded by VK_EXT_descriptor_heap. See Legacy Functionality for more information.

    // Provided by VK_EXT_descriptor_buffer
    typedef struct VkOpaqueCaptureDescriptorDataCreateInfoEXT {
        VkStructureType    sType;
        const void*        pNext;
        const void*        opaqueCaptureDescriptorData;
    } VkOpaqueCaptureDescriptorDataCreateInfoEXT;

## Members

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

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

- `opaqueCaptureDescriptorData` is a pointer to an application-allocated buffer containing opaque capture data retrieved using vkGetBufferOpaqueCaptureDescriptorDataEXT, vkGetImageOpaqueCaptureDescriptorDataEXT, vkGetImageViewOpaqueCaptureDescriptorDataEXT, vkGetTensorOpaqueCaptureDescriptorDataARM, vkGetTensorViewOpaqueCaptureDescriptorDataARM, vkGetSamplerOpaqueCaptureDescriptorDataEXT, or vkGetAccelerationStructureOpaqueCaptureDescriptorDataEXT.

## Description

During replay, opaque descriptor capture data can be specified by adding a `VkOpaqueCaptureDescriptorDataCreateInfoEXT` structure to the relevant `pNext` chain of a VkBufferCreateInfo, VkImageCreateInfo, VkImageViewCreateInfo, VkSamplerCreateInfo, VkTensorCreateInfoARM, VkTensorViewCreateInfoARM, VkAccelerationStructureCreateInfoNV or VkAccelerationStructureCreateInfoKHR structure.

When providing opaque capture data for an image, if the `pNext` chain of VkImageCreateInfo or VkTensorCreateInfoARM contains an instance of both this structure and VkOpaqueCaptureDataCreateInfoEXT, they should both specify data from the same original resource. If they have capture data from different original resources, resource creation is much more likely to fail.

Valid Usage (Implicit)

- VUID-VkOpaqueCaptureDescriptorDataCreateInfoEXT-sType-sType
  `sType` must be VK_STRUCTURE_TYPE_OPAQUE_CAPTURE_DESCRIPTOR_DATA_CREATE_INFO_EXT

- VUID-VkOpaqueCaptureDescriptorDataCreateInfoEXT-opaqueCaptureDescriptorData-parameter
  `opaqueCaptureDescriptorData` must be a pointer value

Structure Chaining

Extends the structures

  - VkAccelerationStructureCreateInfo2KHR

  - VkAccelerationStructureCreateInfoKHR

  - VkAccelerationStructureCreateInfoNV

  - VkBufferCreateInfo

  - VkImageCreateInfo

  - VkImageViewCreateInfo

  - VkSamplerCreateInfo

  - VkTensorCreateInfoARM

  - VkTensorViewCreateInfoARM

## See Also

VK_EXT_descriptor_buffer, VkStructureType

## 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