/// <summary>
/// Returns a copy of the Vector3k scaled to unit length.
/// </summary>
public Vector3k Normalized()
{
Vector3k v = this;
v.Normalize();
return(v);
}
public static Vector3k CalculateSurfaceNormal(Vertex [] verts)
{
Vector3k normal = new Vector3k(Accum.Zero, Accum.Zero, Accum.Zero);
Vertex cur, next;
int vCount = verts.Length;
for (int i = 0; i < vCount; i++)
{
cur = verts [i];
next = verts [(i + 1) % vCount];
normal.X += (cur.Y - next.Y) * (cur.Z + next.Z);
normal.Y += (cur.Z - next.Z) * (cur.X + next.X);
normal.Z += (cur.X - next.X) * (cur.Y + next.Y);
}
normal.Normalize();
return(normal);
}