> ## 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

> 定义序列化光线追踪加速结构的头。

定义序列化光线追踪加速结构的头。

## 语法

```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
```

### 成员

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

驱动程序匹配标识符。

*SerializedSizeInBytesIncludingHeader*\
类型：UINT64

序列化数据的大小。

*DeserializedSizeInBytes*\
类型：UINT64

反序列化加速结构时将消耗的内存大小。此值小于或等于加速结构在序列化之前的原始大小。

*NumBottomLevelAccelerationStructurePointersAfterHeader*\
类型：UINT64

跟随在标头之后的 [D3D12\_GPU\_VIRTUAL\_ADDRESS](https://learn.microsoft.com/en-us/windows/desktop/direct3d12/d3d12_gpu_virtual_address) 值数组的大小。有关详细信息，请参阅 [D3D12\_RAYTRACING\_ACCELERATION\_STRUCTURE\_POSTBUILD\_INFO\_SERIALIZATION\_DESC](/reference/graphics/d3d12/structs/d3d12_raytracing_acceleration_structure_postbuild_info_serialization_desc_public)。

## 要求

**头文件：** d3d12\_xs.h\
**库：** d3d12\_xs.lib\
**支持的平台**：XBOX Series 主机


## Related topics

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