# VkAccelerationStructureCreateInfoNV(3) Manual Page

## Name

VkAccelerationStructureCreateInfoNV - Structure specifying the parameters of a newly created acceleration structure object

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## C Specification

The `VkAccelerationStructureCreateInfoNV` structure is defined as:

    // Provided by VK_NV_ray_tracing
    typedef struct VkAccelerationStructureCreateInfoNV {
        VkStructureType                  sType;
        const void*                      pNext;
        VkDeviceSize                     compactedSize;
        VkAccelerationStructureInfoNV    info;
    } VkAccelerationStructureCreateInfoNV;

## Members

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

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

- `compactedSize` is the size from the result of vkCmdWriteAccelerationStructuresPropertiesNV if this acceleration structure is going to be the target of a compacting copy.

- `info` is the VkAccelerationStructureInfoNV structure specifying further parameters of the created acceleration structure.

## Description

Valid Usage

- VUID-VkAccelerationStructureCreateInfoNV-compactedSize-02421
  If `compactedSize` is not `0` then both `info.geometryCount` and `info.instanceCount` must be `0`

Valid Usage (Implicit)

- VUID-VkAccelerationStructureCreateInfoNV-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_ACCELERATION_STRUCTURE_CREATE_INFO_NV`

- VUID-VkAccelerationStructureCreateInfoNV-pNext-pNext
  `pNext` must be `NULL` or a pointer to a valid instance of VkOpaqueCaptureDescriptorDataCreateInfoEXT

- VUID-VkAccelerationStructureCreateInfoNV-sType-unique
  The `sType` value of each structure in the `pNext` chain must be unique

- VUID-VkAccelerationStructureCreateInfoNV-info-parameter
  `info` must be a valid VkAccelerationStructureInfoNV structure

## See Also

VK_NV_ray_tracing, VkAccelerationStructureInfoNV, VkDeviceSize, VkStructureType, vkCreateAccelerationStructureNV

## 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 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0