ConvertToVector3List function
Implementation
List<VM.Vector3> ConvertToVector3List(List lst) {
List<VM.Vector3> out = List.generate(
lst.length ~/ 3,
(i) => VM.Vector3(lst[3 * i + 0].toDouble(), lst[3 * i + 1].toDouble(),
lst[3 * i + 2].toDouble()));
return out;
}