# VkAccelerationStructureCaptureDescriptorDataInfoEXT(3) Manual Page

## Name

VkAccelerationStructureCaptureDescriptorDataInfoEXT - Structure specifying an acceleration structure for descriptor capture

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## C Specification

Information about the acceleration structure to get descriptor buffer capture data for is passed in a `VkAccelerationStructureCaptureDescriptorDataInfoEXT` structure:

    // Provided by VK_EXT_descriptor_buffer with VK_KHR_acceleration_structure or VK_NV_ray_tracing
    typedef struct VkAccelerationStructureCaptureDescriptorDataInfoEXT {
        VkStructureType               sType;
        const void*                   pNext;
        VkAccelerationStructureKHR    accelerationStructure;
        VkAccelerationStructureNV     accelerationStructureNV;
    } VkAccelerationStructureCaptureDescriptorDataInfoEXT;

## Members

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

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

- `accelerationStructure` is the `VkAccelerationStructureKHR` handle of the acceleration structure to get opaque capture data for.

- `accelerationStructureNV` is the `VkAccelerationStructureNV` handle of the acceleration structure to get opaque capture data for.

## Description

Valid Usage

- VUID-VkAccelerationStructureCaptureDescriptorDataInfoEXT-accelerationStructure-08091
  If `accelerationStructure` is not VK_NULL_HANDLE then `accelerationStructure` must have been created with `VK_ACCELERATION_STRUCTURE_CREATE_DESCRIPTOR_BUFFER_CAPTURE_REPLAY_BIT_EXT` set in VkAccelerationStructureCreateInfoKHR::`createFlags`

- VUID-VkAccelerationStructureCaptureDescriptorDataInfoEXT-accelerationStructureNV-08092
  If `accelerationStructureNV` is not VK_NULL_HANDLE then `accelerationStructureNV` must have been created with `VK_ACCELERATION_STRUCTURE_CREATE_DESCRIPTOR_BUFFER_CAPTURE_REPLAY_BIT_EXT` set in VkAccelerationStructureCreateInfoNV::`info.flags`

- VUID-VkAccelerationStructureCaptureDescriptorDataInfoEXT-accelerationStructure-08093
  If `accelerationStructure` is not VK_NULL_HANDLE then `accelerationStructureNV` must be VK_NULL_HANDLE

- VUID-VkAccelerationStructureCaptureDescriptorDataInfoEXT-accelerationStructureNV-08094
  If `accelerationStructureNV` is not VK_NULL_HANDLE then `accelerationStructure` must be VK_NULL_HANDLE

Valid Usage (Implicit)

- VUID-VkAccelerationStructureCaptureDescriptorDataInfoEXT-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_ACCELERATION_STRUCTURE_CAPTURE_DESCRIPTOR_DATA_INFO_EXT`

- VUID-VkAccelerationStructureCaptureDescriptorDataInfoEXT-pNext-pNext
  `pNext` must be `NULL`

- VUID-VkAccelerationStructureCaptureDescriptorDataInfoEXT-accelerationStructure-parameter
  If `accelerationStructure` is not VK_NULL_HANDLE, `accelerationStructure` must be a valid VkAccelerationStructureKHR handle

- VUID-VkAccelerationStructureCaptureDescriptorDataInfoEXT-accelerationStructureNV-parameter
  If `accelerationStructureNV` is not VK_NULL_HANDLE, `accelerationStructureNV` must be a valid VkAccelerationStructureNV handle

- VUID-VkAccelerationStructureCaptureDescriptorDataInfoEXT-commonparent
  Both of `accelerationStructure`, and `accelerationStructureNV` that are valid handles of non-ignored parameters must have been created, allocated, or retrieved from the same VkDevice

## See Also

VK_EXT_descriptor_buffer, VK_KHR_acceleration_structure, VK_NV_ray_tracing, VkAccelerationStructureKHR, VkAccelerationStructureNV, VkStructureType, vkGetAccelerationStructureOpaqueCaptureDescriptorDataEXT

## 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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0