> ## 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

> 定義序列化光線追蹤加速結構的標頭。

定義序列化光線追蹤加速結構的標頭。

## 語法

```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
```

### 成員

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

驅動程式比對識別碼。

*SerializedSizeInBytesIncludingHeader*\
類型：UINT64

序列化資料的大小。

*DeserializedSizeInBytes*\
類型：UINT64

還原序列化加速結構時將耗用的記憶體大小。此值小於或等於原始加速結構在序列化之前的大小。

*NumBottomLevelAccelerationStructurePointersAfterHeader*\
類型：UINT64

標頭之後的 [D3D12\_GPU\_VIRTUAL\_ADDRESS](https://learn.microsoft.com/en-us/windows/desktop/direct3d12/d3d12_gpu_virtual_address) 值陣列大小。如需詳細資訊，請參閱 [D3D12\_RAYTRACING\_ACCELERATION\_STRUCTURE\_POSTBUILD\_INFO\_SERIALIZATION\_DESC](/zh-TW/reference/graphics/d3d12/structs/d3d12_raytracing_acceleration_structure_postbuild_info_serialization_desc_public)。

## 需求

**標頭:** d3d12\_xs.h\
**程式庫:** d3d12\_xs.lib\
**支援的平台**: XBOX Series 主機


## Related topics

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