[FRHIUnorderedAccessView](API\Runtime\RHI\FRHIUnorderedAccessView) * GetEmptyUAVFromPool ( [FRHICommandList](API\Runtime\RHI\FRHICommandList) & RHICmdList, EPixelFormat Format, [ENiagaraEmptyUAVType](API\Plugins\Niagara\ENiagaraEmptyUAVType) Type )