// Should only build once!
public RenderGeometry Build()
{
RenderGeometry g = new RenderGeometry();
foreach (Face f in faces)
{
g.CombineGeometry(surfaceComponents[f]);
}
foreach (Halfedge e in halfedges)
{
if (connections.ContainsKey(e) && connections.ContainsKey(e.opposite))
{
List <Halfedge> list1 = connections[e];
List <Halfedge> list2 = connections[e.opposite];
if (list1.Count != list2.Count)
{
throw new Exception("Cannot connect two surface blocks, segment count doesn't match.");
}
for (int i = 0; i < list1.Count; i++)
{
g.ConnectEdges(list1[i], list2[list1.Count - 1 - i]);
}
connections.Remove(e);
connections.Remove(e.opposite);
}
}
return(g);
}