public void Test_Apply()
{
var m = new Matrix4x4 (1, 2, 1, 1,
2, 1, 2, 1,
2, 2, 2, 2,
1, 1, 2, 1);
Assert.AreEqual(new Vector3(0.9f, 1.1f, 1.4f), m.Apply (1,2,3)); // w=1
Assert.AreEqual (new Vector3 (0.9f, 1.1f, 1.4f), m.Apply (new Vector3 (1, 2, 3))); // w=1
Assert.AreEqual (new Vector3 (8, 10, 12), m.Apply (1, 2, 3, 0)); // w=0（W除算を行わない）
}