> ## Documentation Index
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> Use this file to discover all available pages before exploring further.

# D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_DESC

> 从加速结构生成的构建后信息的描述。在调用中使用此结构。

从加速结构生成的构建后信息的描述。在对 [EmitRaytracingAccelerationStructurePostbuildInfo](/reference/graphics/d3d12/interfaces/id3d12graphicscommandlist4/methods/id3d12graphicscommandlist4_emitraytracingaccelerationstructurepostbuildinfo_public) 和 [BuildRaytracingAccelerationStructure](/reference/graphics/d3d12/interfaces/id3d12graphicscommandlist4/methods/id3d12graphicscommandlist4_buildraytracingaccelerationstructure_public) 的调用中使用此结构。

## 语法

```cpp theme={null}
typedef struct D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_DESC
{
    D3D12_GPU_VIRTUAL_ADDRESS DestBuffer;
    D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_TYPE InfoType;
} D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_DESC
```

### 成员

*DestBuffer*\
类型：D3D12\_GPU\_VIRTUAL\_ADDRESS

用于构建后信息结果的存储。所需大小和系统写入的内容布局取决于 <i>InfoType</i> 字段的值。

指向的内存必须处于 [D3D12\_RESOURCE\_STATE\_UNORDERED\_ACCESS](/reference/graphics/d3d12_x/enums/d3d12_resource_states) 状态。内存必须按所生成的特定输出结构的成员的自然对齐方式对齐（例如，对于最大成员为 UINT64 的结构，对齐方式为 8 字节）。

*InfoType*\
类型：D3D12\_RAYTRACING\_ACCELERATION\_STRUCTURE\_POSTBUILD\_INFO\_TYPE

一个 [D3D12\_RAYTRACING\_ACCELERATION\_STRUCTURE\_POSTBUILD\_INFO\_TYPE](/reference/graphics/d3d12/enums/d3d12_raytracing_acceleration_structure_postbuild_info_type_public) 值，指定要检索的构建后信息的类型。

## 要求

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


## Related topics

- [EmitRaytracingAccelerationStructurePostbuildInfo](/zh-CN/reference/graphics/d3d12/interfaces/id3d12graphicscommandlist4/methods/id3d12graphicscommandlist4_emitraytracingaccelerationstructurepostbuildinfo_public.md)
- [BuildRaytracingAccelerationStructure (XBOX Series 主机)](/zh-CN/reference/graphics/d3d12/interfaces/id3d12graphicscommandlist4/methods/id3d12graphicscommandlist4_buildraytracingaccelerationstructure_public.md)
- [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_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_CURRENT_SIZE_DESC (XBOX Series consoles)](/zh-CN/reference/graphics/d3d12/structs/d3d12_raytracing_acceleration_structure_postbuild_info_current_size_desc_public.md)
- [D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_COMPACTED_SIZE_DESC (XBOX Series consoles)](/zh-CN/reference/graphics/d3d12/structs/d3d12_raytracing_acceleration_structure_postbuild_info_compacted_size_desc_public.md)