public void IntersectCoplanarRay()
{
var p = new Plane();
var r = new Ray(0f, 0f, 0f, 0f, 0f, 1f);
var xs = p.IntersectLocal(ref r);
Assert.AreEqual(xs.Count, 0);
}
public void IntersectPlaneFromBelow()
{
var p = new Plane();
var r = new Ray(0f, -1f, 0f, 0f, 1f, 0f);
var xs = p.IntersectLocal(ref r);
Assert.AreEqual(xs.Count, 1);
Assert.AreEqual(xs[0].Distance, 1f);
Assert.AreEqual(xs[0].Object, p);
}