void Update ( const FVector3f & SourceVertex, const [TArray](API\Runtime\Core\Containers\TArray)< FVector3f > & DriverVertices, const [TArray](API\Runtime\Core\Containers\TArray)< FIntVector3 > & DriverTriangles, const [TArray](API\Runtime\Core\Containers\TArray)< [VertexSkinWeightMax](API\Plugins\AnimToTextureEditor\VertexSkinWeightMax) > & DriverSkinWeights, const int32 NumDrivers, const float Sigma )