public void ReflectedColorForNonReflectiveMaterial()
{
var w = new DefaultWorld();
var r = new Ray(Vector4.CreatePosition(0, 0, 0), Vector4.CreateDirection(0, 0, 1));
var shape = w.Objects[1];
shape.Material.Ambient = 1;
var i = new Intersection(1, shape);
var comps = i.Precompute(r);
var c = w.GetReflectedColor(comps, 5);
Assert.Equal(Color.Black, c);
}
public void ReflectedColorAtMaxRecursiveDepth()
{
var w = new DefaultWorld();
var plane = new Plane();
plane.Material.Reflective = 0.5;
plane.Transform = Transform.Translate(0, -1, 0);
w.Objects.Add(plane);
var r = new Ray(
Vector4.CreatePosition(0, 0, -3),
Vector4.CreateDirection(0, -Math.Sqrt(2) / 2, Math.Sqrt(2) / 2));
var i = new Intersection(Math.Sqrt(2), plane);
var comps = i.Precompute(r);
var c = w.GetReflectedColor(comps, 0);
Assert.Equal(Color.Black, c);
}
public void ReflectedColorForReflectiveMaterial()
{
var w = new DefaultWorld();
var plane = new Plane();
plane.Material.Reflective = 0.5;
plane.Transform = Transform.Translate(0, -1, 0);
w.Objects.Add(plane);
var r = new Ray(
Vector4.CreatePosition(0, 0, -3),
Vector4.CreateDirection(0, -Math.Sqrt(2) / 2, Math.Sqrt(2) / 2));
var i = new Intersection(Math.Sqrt(2), plane);
var comps = i.Precompute(r);
var c = w.GetReflectedColor(comps, 5);
var expected = new Color(0.19032, 0.2379, 0.14274);
const double eps = 0.0001;
var comparer = Color.GetEqualityComparer(eps);
Assert.Equal(expected, c, comparer);
}