public static G3D ToG3D(this BFast bfast) => G3D.Create(bfast);
public static List <IGeometry> LoadGeometries(this BFast bfast) => bfast.Buffers .AsParallel().AsOrdered() .Select(b => G3D.Create(b).ToIGeometry()) .ToList();
public static G3D ReadFromFile(string filePath) => G3D.Create(File.ReadAllBytes(filePath));