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API > API/Runtime > API/Runtime/Renderer > API/Runtime/Renderer/IPathTracingSpatialTemporalDenoi- > API/Runtime/Renderer/IPathTracingSpatialTemporalDenoi-/FInputs
Syntax
TRefCountPtr < IHistory > PrevHistory
Remarks
The history of the previous frame set by FOutputs::NewHistory. PrevHistory->GetDebugName() is guarentee to match the IPathTracingSpatialTemporalDenoiser.