> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER

> Définit l'en-tête d'une structure d'accélération de lancer de rayons sérialisée.

Définit l'en-tête d'une structure d'accélération de lancer de rayons sérialisée.

## Syntaxe

```cpp theme={null}
typedef struct D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER
{
    D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER DriverMatchingIdentifier;
    UINT64 SerializedSizeInBytesIncludingHeader;
    UINT64 DeserializedSizeInBytes;
    UINT64 NumBottomLevelAccelerationStructurePointersAfterHeader;
} D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER
```

### Membres

*DriverMatchingIdentifier*\
Type : D3D12\_SERIALIZED\_DATA\_DRIVER\_MATCHING\_IDENTIFIER

L'identificateur de correspondance du pilote.

*SerializedSizeInBytesIncludingHeader*\
Type : UINT64

La taille des données sérialisées.

*DeserializedSizeInBytes*\
Type : UINT64

Taille de la mémoire qui sera consommée lorsque la structure d'accélération sera désérialisée.  Cette valeur est inférieure ou égale à la taille de la structure d'accélération d'origine avant sa sérialisation.

*NumBottomLevelAccelerationStructurePointersAfterHeader*\
Type : UINT64

Taille du tableau de valeurs [D3D12\_GPU\_VIRTUAL\_ADDRESS](https://learn.microsoft.com/en-us/windows/desktop/direct3d12/d3d12_gpu_virtual_address) qui suivent l'en-tête.  Pour plus d'information, consultez [D3D12\_RAYTRACING\_ACCELERATION\_STRUCTURE\_POSTBUILD\_INFO\_SERIALIZATION\_DESC](/fr-CA/reference/graphics/d3d12/structs/d3d12_raytracing_acceleration_structure_postbuild_info_serialization_desc_public).

## Configuration requise

**En-tête :** d3d12\_xs.h\
**Bibliothèque :** d3d12\_xs.lib\
**Plateformes prises en charge :** consoles XBOX Series


## Related topics

- [D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_SERIALIZATION_DESC (consoles XBOX Series)](/fr-CA/reference/graphics/d3d12/structs/d3d12_raytracing_acceleration_structure_postbuild_info_serialization_desc_public.md)
- [D3D12_BUILD_RAYTRACING_ACCELERATION_STRUCTURE_TOOLS_VISUALIZATION_HEADER (consoles XBOX Series)](/fr-CA/reference/graphics/d3d12/structs/d3d12_build_raytracing_acceleration_structure_tools_visualization_header_public.md)
- [D3D12_RAYTRACING_ACCELERATION_STRUCTURE_TYPE](/fr-CA/reference/graphics/d3d12/enums/d3d12_raytracing_acceleration_structure_type_public.md)
- [D3D12_BUILD_RAYTRACING_ACCELERATION_STRUCTURE_DESC](/fr-CA/reference/graphics/d3d12/structs/d3d12_build_raytracing_acceleration_structure_desc_public.md)
- [D3D12_BUILD_RAYTRACING_ACCELERATION_STRUCTURE_INPUTS](/fr-CA/reference/graphics/d3d12/structs/d3d12_build_raytracing_acceleration_structure_inputs_public.md)