private static void FixVertices(ref MeshData m)
{
Dictionary <Vector3, List <SharedTriangle> > triangleList = new Dictionary <Vector3, List <SharedTriangle> >();
int counter = 0;
// loop through all triangles and create a list of all triangles that share a vertice that has an x, y or z value of 0
for (int i = 0; i < m.Triangles.Count;)
{
SharedTriangle t = new SharedTriangle {
Index = i, A = m.Triangles[i++], B = m.Triangles[i++], C = m.Triangles[i++]
};
Vector3 av = m.Vertices[t.A];
Vector3 bv = m.Vertices[t.B];
Vector3 cv = m.Vertices[t.C];
AddTriangleIfNeeded(triangleList, ref av, ref t, ref t.AShared, ref counter);
AddTriangleIfNeeded(triangleList, ref bv, ref t, ref t.BShared, ref counter);
AddTriangleIfNeeded(triangleList, ref cv, ref t, ref t.CShared, ref counter);
}
foreach (KeyValuePair <Vector3, List <SharedTriangle> > kv in triangleList)
{
Vector3 v = kv.Key;
FixTriangle(ref v, kv.Value, ref m);
}
}
private static void AddTriangleIfNeeded(Dictionary <Vector3, List <SharedTriangle> > triangleList, ref Vector3 v, ref SharedTriangle t, ref bool shareVar, ref int counter)
{
if (v.x == 0.0f || v.y == 0.0f || v.z == 0.0f)
{
List <SharedTriangle> list;
if (!triangleList.TryGetValue(v, out list))
{
list = new List <SharedTriangle>();
triangleList[v] = list;
}
shareVar = true;
list.Add(t);
counter++;
}
}