public void TestIntersectTranslatedShapeRay()
{
var shape = new TestAShape
{
Transform = Matrix4.Translation(5, 0, 0)
};
var ray = new Ray(Tuple.Point(0, 0, -5), Tuple.Vector(0, 0, 1));
shape.Intersect(ray);
Assert.AreEqual(Tuple.Point(-5, 0, -5), shape.SavedRay.Origin);
Assert.AreEqual(Tuple.Vector(0, 0, 1), shape.SavedRay.Direction);
}
public void TestIntersectScaledRay()
{
var shape = new TestAShape
{
Transform = Matrix4.Scaling(2, 2, 2)
};
var ray = new Ray(Tuple.Point(0, 0, -5), Tuple.Vector(0, 0, 1));
shape.Intersect(ray);
Assert.AreEqual(Tuple.Point(0, 0, -2.5), shape.SavedRay.Origin);
Assert.AreEqual(Tuple.Vector(0, 0, 0.5), shape.SavedRay.Direction);
}