C Specification

To get the opaque capture descriptor data for an acceleration structure, call:

// Provided by VK_EXT_descriptor_buffer with VK_KHR_acceleration_structure or VK_NV_ray_tracing
VkResult vkGetAccelerationStructureOpaqueCaptureDescriptorDataEXT(
    VkDevice                                    device,
    const VkAccelerationStructureCaptureDescriptorDataInfoEXT* pInfo,
    void*                                       pData);

Parameters

Description

Valid Usage

  • VUID-vkGetAccelerationStructureOpaqueCaptureDescriptorDataEXT-None-08088
    The descriptorBufferCaptureReplay feature must be enabled

  • VUID-vkGetAccelerationStructureOpaqueCaptureDescriptorDataEXT-pData-08089
    pData must point to a buffer that is at least VkPhysicalDeviceDescriptorBufferPropertiesEXT::accelerationStructureCaptureReplayDescriptorDataSize bytes in size

  • VUID-vkGetAccelerationStructureOpaqueCaptureDescriptorDataEXT-device-08090
    If device was created with multiple physical devices, then the bufferDeviceAddressMultiDevice feature must be enabled

Valid Usage (Implicit)

  • VUID-vkGetAccelerationStructureOpaqueCaptureDescriptorDataEXT-device-parameter
    device must be a valid VkDevice handle

  • VUID-vkGetAccelerationStructureOpaqueCaptureDescriptorDataEXT-pInfo-parameter
    pInfo must be a valid pointer to a valid VkAccelerationStructureCaptureDescriptorDataInfoEXT structure

  • VUID-vkGetAccelerationStructureOpaqueCaptureDescriptorDataEXT-pData-parameter
    pData must be a pointer value

Return Codes
On success, this command returns

  • VK_SUCCESS

On failure, this command returns

  • VK_ERROR_OUT_OF_HOST_MEMORY

  • VK_ERROR_OUT_OF_DEVICE_MEMORY

See Also

VK_EXT_descriptor_buffer, VK_KHR_acceleration_structure, VK_NV_ray_tracing, VkAccelerationStructureCaptureDescriptorDataInfoEXT, VkDevice

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