public Face(List<Vertex> v, Plane p)
{
vertices = v;
//Console.WriteLine("Face has " + vertices.Count + " vertices");
plane = p;
//fix the plane's first, second and third points
Vector3 x = Vector3.Normalize(plane.meshThird - plane.meshSecond),
y = Vector3.Normalize(plane.meshFirst - plane.meshSecond);
//find the minCorner as a (x,y)
Vector2 minCorner = new Vector2(float.MaxValue, float.MaxValue);
Vector2 maxCorner = new Vector2(-float.MaxValue, -float.MaxValue);
foreach (Vertex c in vertices) {
Vector2 cc = new Vector2(Vector3.Dot(c.position - plane.meshSecond, x), Vector3.Dot(c.position - plane.meshSecond, y));
minCorner.X = Math.Min(cc.X, minCorner.X);
minCorner.Y = Math.Min(cc.Y, minCorner.Y);
maxCorner.X = Math.Max(cc.X, maxCorner.X);
maxCorner.Y = Math.Max(cc.Y, maxCorner.Y);
}
plane.meshSecond = minCorner.X * x + minCorner.Y * y + plane.meshSecond;
plane.meshThird = (maxCorner.X - minCorner.X) * x + plane.meshSecond;
plane.meshFirst = (maxCorner.Y - minCorner.Y) * y + plane.meshSecond;
windVertices();
computeTexCoords();
}
public Vertex getIntersection(Plane p1, Plane p2, Plane p3)
{
return getIntersection(p1.getNormal(), p2.getNormal(), p3.getNormal(), (float)(p1.getD()), (float)(p2.getD()), (float)(p3.getD()));
}