# VkGeometryAABBNV(3) Manual Page

## Name

VkGeometryAABBNV - Structure specifying axis-aligned bounding box geometry in a bottom-level acceleration structure

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## C Specification

The `VkGeometryAABBNV` structure specifies axis-aligned bounding box geometry in a bottom-level acceleration structure, and is defined as:

    // Provided by VK_NV_ray_tracing
    typedef struct VkGeometryAABBNV {
        VkStructureType    sType;
        const void*        pNext;
        VkBuffer           aabbData;
        uint32_t           numAABBs;
        uint32_t           stride;
        VkDeviceSize       offset;
    } VkGeometryAABBNV;

## Members

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

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

- `aabbData` is the buffer containing axis-aligned bounding box data.

- `numAABBs` is the number of AABBs in this geometry.

- `stride` is the stride in bytes between AABBs in `aabbData`.

- `offset` is the offset in bytes of the first AABB in `aabbData`.

## Description

The AABB data in memory is six 32-bit floats consisting of the minimum x, y, and z values followed by the maximum x, y, and z values.

Valid Usage

- VUID-VkGeometryAABBNV-offset-02439
  `offset` must be less than the size of `aabbData`

- VUID-VkGeometryAABBNV-offset-02440
  `offset` must be a multiple of `8`

- VUID-VkGeometryAABBNV-stride-02441
  `stride` must be a multiple of `8`

Valid Usage (Implicit)

- VUID-VkGeometryAABBNV-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_GEOMETRY_AABB_NV`

- VUID-VkGeometryAABBNV-pNext-pNext
  `pNext` must be `NULL`

- VUID-VkGeometryAABBNV-aabbData-parameter
  If `aabbData` is not VK_NULL_HANDLE, `aabbData` must be a valid VkBuffer handle

## See Also

VK_NV_ray_tracing, VkBuffer, VkDeviceSize, VkGeometryDataNV, 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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0