void PolyThread::Main(void)
{
	if (Vertices.GetCount() != 3)
		return;

	BoundingBox bb = Helper::GetBoundingBox(_bitmap, Vertices);

	Vector p1 = Vector(Vertices[0].GetX(), Vertices[0].GetY(), 0);
	Vector p2 = Vector(Vertices[1].GetX(), Vertices[1].GetY(), 0);
	Vector p3 = Vector(Vertices[2].GetX(), Vertices[2].GetY(), 0);

	Vector c1 = Vertices[0].GetColor();
	Vector c2 = Vertices[1].GetColor();
	Vector c3 = Vertices[2].GetColor();

	Gradient2D g1 = Gradient2D(c1, c2, (p1 - p2).GetLength());

	Gradient2D g2;
	Vector pt, interesect, color;
	Bool isIntersected;
	Float d1;

	for (Int32 x = bb.left; x < bb.right; x++)
	{
		for (Int32 y = bb.top; y < bb.bottom; y++)
		{
			// check if the thread should be stopped
			if (TestBreak())
				End(false);

			// Continue if point is not in path
			if (!Helper::IsPointInPath(x, y, Vertices))
				continue;

			pt = Vector(x, y, 0);
			isIntersected = Helper::Intersect2D(p1, p2, p3, pt, interesect);

			// Continue if there is no intersection, should not happen
			if (!isIntersected)
				continue;

			d1 = (p3 - interesect).GetLength();
			if (d1 == 0.0)
				continue;

			isIntersected = Helper::Intersect2D(p1, p2, p3, pt, interesect);
			// Continue if there is no intersection, should not happen
			if (!isIntersected)
				continue;

			g2 = Gradient2D(c3, g1.GetColorAt((p1 - interesect).GetLength()), d1);
			color = g2.GetColorAt((p3 - pt).GetLength());

			_bitmap->SetPixel(x, y, color.x, color.y, color.z);
		}
	}
	End(false);
	return;
}