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Performs a raytracing acceleration structure build on the GPU and optionally outputs post-build information immediately after the build.

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Syntax

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Parameters

pDesc [in]
Type: const D3D12_BUILD_RAYTRACING_ACCELERATION_STRUCTURE_DESC * Description of the acceleration structure to build. NumPostbuildInfoDescs [in]
Type: UINT Size of the pPostbuildInfoDescs array. Set to 0 if no post-build info is needed. pPostbuildInfoDescs [in]
Type: const D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_DESC * Optional array of descriptions for post-build info to generate describing properties of the acceleration structure that was built.

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Return value

Type: void None.

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Remarks

This method can be called on graphics or compute command lists but not from bundles. Post-build information can also be obtained separately from an already built acceleration structure by calling EmitRaytracingAccelerationStructurePostbuildInfo. The advantage of generating post-build info along with a build is that a barrier isn’t needed in between the build completing and requesting post-build information, enabling scenarios where the app needs the post-build info right away.

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Requirements

Header: d3d12_xs.h
Library: d3d12_xs.lib
Supported Platforms: XBOX Series consoles

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See Also

ID3D12GraphicsCommandList4
Last modified on August 20, 2026

Related topics

D3D12_BUILD_RAYTRACING_ACCELERATION_STRUCTURE_TOOLS_VISUALIZATION_HEADER (XBOX Series consoles)D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_COMPACTED_SIZE_DESC (XBOX Series consoles)CopyRaytracingAccelerationStructure (XBOX Series consoles)D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_CURRENT_SIZE_DESC (XBOX Series consoles)D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_SERIALIZATION_DESC (XBOX Series consoles)