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# D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_DESC

> 要從加速結構產生之建置後資訊的描述。在呼叫中使用此結構。

要從加速結構產生之建置後資訊的描述。在呼叫 [EmitRaytracingAccelerationStructurePostbuildInfo](/zh-TW/reference/graphics/d3d12/interfaces/id3d12graphicscommandlist4/methods/id3d12graphicscommandlist4_emitraytracingaccelerationstructurepostbuildinfo_public) 和 [BuildRaytracingAccelerationStructure](/zh-TW/reference/graphics/d3d12/interfaces/id3d12graphicscommandlist4/methods/id3d12graphicscommandlist4_buildraytracingaccelerationstructure_public) 時使用此結構。

## 語法

```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
```

### 成員

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

建置後資訊結果的儲存空間。所需的大小以及系統寫入內容的配置，取決於 <i>InfoType</i> 欄位的值。

所指向的記憶體必須處於 [D3D12\_RESOURCE\_STATE\_UNORDERED\_ACCESS](/zh-TW/reference/graphics/d3d12_x/enums/d3d12_resource_states) 狀態。記憶體必須對齊所產生之特定輸出結構成員的自然對齊 (例如，對於最大成員為 UINT64 的結構，須對齊 8 個位元組)。

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

[D3D12\_RAYTRACING\_ACCELERATION\_STRUCTURE\_POSTBUILD\_INFO\_TYPE](/zh-TW/reference/graphics/d3d12/enums/d3d12_raytracing_acceleration_structure_postbuild_info_type_public) 值，指定要擷取的建置後資訊類型。

## 需求

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


## Related topics

- [EmitRaytracingAccelerationStructurePostbuildInfo](/zh-TW/reference/graphics/d3d12/interfaces/id3d12graphicscommandlist4/methods/id3d12graphicscommandlist4_emitraytracingaccelerationstructurepostbuildinfo_public.md)
- [BuildRaytracingAccelerationStructure (XBOX Series 主機)](/zh-TW/reference/graphics/d3d12/interfaces/id3d12graphicscommandlist4/methods/id3d12graphicscommandlist4_buildraytracingaccelerationstructure_public.md)
- [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_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_CURRENT_SIZE_DESC (XBOX Series 主機)](/zh-TW/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 主機)](/zh-TW/reference/graphics/d3d12/structs/d3d12_raytracing_acceleration_structure_postbuild_info_compacted_size_desc_public.md)