template<typename IDType, typename ReaderType> void GenerateVertexBufferForMultiRibbon ( const FNiagaraGenerationInputDataCPUAccessors & CPUData, const ReaderType & IDReader, [FNiagaraRibbonCPUGeneratedVertexData](API\Plugins\Niagara\FNiagaraRibbonCPUGeneratedVertex-) & OutputData ) const