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# D3D12_RAYTRACING_GEOMETRY_AABBS_DESC (XBOX Series consoles)

> Describes a set of Axis-aligned bounding boxes that are used in the D3D12_BUILD_RAYTRACING_ACCELERATION_STRUCTURE_INPUTS structure to provide input data to a.

Describes a set of Axis-aligned bounding boxes that are used in the [D3D12\_BUILD\_RAYTRACING\_ACCELERATION\_STRUCTURE\_INPUTS](/reference/graphics/d3d12/structs/d3d12_build_raytracing_acceleration_structure_inputs_public) structure to provide input data to a raytracing acceleration structure build operation.

## Syntax

```cpp theme={null}
typedef struct D3D12_RAYTRACING_GEOMETRY_AABBS_DESC
{
    UINT64 AABBCount;
    D3D12_GPU_VIRTUAL_ADDRESS_AND_STRIDE AABBs;
} D3D12_RAYTRACING_GEOMETRY_AABBS_DESC
```

### Members

*AABBCount*\
Type: UINT64

The number of AABBs pointed to in the contiguous array at <i>AABBs</i>.

*AABBs*\
Type: D3D12\_GPU\_VIRTUAL\_ADDRESS\_AND\_STRIDE

the GPU memory location where an array of AABB descriptions is to be found, including the data stride between AABBs.  The address and stride must each be aligned to 8 bytes, defined as The address must be aligned to 16 bytes, defined as [ D3D12\_RAYTRACING\_AABB\_BYTE\_ALIGNMENT](https://learn.microsoft.com/en-us/windows/desktop/direct3d12/constants).  The stride can be 0.

## Requirements

**Header:** d3d12\_xs.h\
**Library:** d3d12\_xs.lib\
**Supported Platforms**: XBOX Series consoles


## Related topics

- [D3D12_RAYTRACING_GEOMETRY_DESC (XBOX Series consoles)](/reference/graphics/d3d12/structs/d3d12_raytracing_geometry_desc_public.md)
- [D3D12_RAYTRACING_GEOMETRY_TYPE (XBOX Series consoles)](/reference/graphics/d3d12/enums/d3d12_raytracing_geometry_type_public.md)
- [D3D12_RAYTRACING_AABB (XBOX Series consoles)](/reference/graphics/d3d12/structs/d3d12_raytracing_aabb_public.md)
- [D3D12_RAYTRACING_GEOMETRY_FLAGS (XBOX Series consoles)](/reference/graphics/d3d12/enums/d3d12_raytracing_geometry_flags_public.md)
- [D3D12_RAYTRACING_INSTANCE_DESC (XBOX Series consoles)](/reference/graphics/d3d12/structs/d3d12_raytracing_instance_desc_public.md)