Edit

D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_DESC structure (d3d12.h)

  • Article

Description of the post-build information to generate from an acceleration structure. Use this structure in calls to EmitRaytracingAccelerationStructurePostbuildInfo and BuildRaytracingAccelerationStructure.

Syntax

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;

Members

DestBuffer

Storage for the post-build info result. Size required and the layout of the contents written by the system depend on the value of the InfoType field.

The memory pointed to must be in state D3D12_RESOURCE_STATE_UNORDERED_ACCESS. The memory must be aligned to the natural alignment for the members of the particular output structure being generated (e.g. 8 bytes for a struct with the largest members being UINT64).

InfoType

A D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_TYPE value specifying the type of post-build information to retrieve.

Requirements

Requirement Value
Header d3d12.h