public void AddFace(params Vector3[] nodes)
{
int[] f_index = new int[nodes.Length];
for (int i = 0; i < f_index.Length; i++)
{
int index = InnerVertices.IndexOf(nodes[i]);
if (index < 0)
{
index = InnerVertices.Count;
InnerVertices.Add(nodes[i]);
}
f_index[i] = index;
}
Faces.Add(f_index);
}
protected void AddVertex(Vector3 vector) => InnerVertices.Add(vector);