D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER structure (d3d12.h)

  • Article

Defines the header for a serialized raytracing acceleration structure.

Syntax

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;

Members

DriverMatchingIdentifier

The driver-matching identifier.

SerializedSizeInBytesIncludingHeader

The size of serialized data.

DeserializedSizeInBytes

Size of the memory that will be consumed when the acceleration structure is deserialized. This value is less than or equal to the size of the original acceleration structure before it was serialized.

NumBottomLevelAccelerationStructurePointersAfterHeader

Size of the array of D3D12_GPU_VIRTUAL_ADDRESS values that follow the header. For more information, see D3D12_RAYTRACING_ACCELERATION_STRUCTURE_POSTBUILD_INFO_SERIALIZATION_DESC.

Requirements

Requirement Value
Header d3d12.h