public void ReflectedColorNonReflectiveMaterial()
{
var world = new DefaultWorld();
var ray = new Ray(Point.Zero, Vector.UnitZ);
var shape = world.Shapes[1];
shape.Material.Ambient = 1;
var intersection = new Intersection(1, shape);
var info = new IntersectionInfo(new Intersections(intersection), intersection, ray);
var actual = world.ReflectedColor(info, 0);
Assert.Equal(Color.Black, actual);
}
public void ReflectedColorMaxRecursiveDepth()
{
var world = new DefaultWorld();
var plane = new Plane(
Matrix4x4.Translation(0, -1, 0),
new Material(reflective: 0.5f));
world.Shapes.Add(plane);
var ray = new Ray(new Point(0, 0, -3), new Vector(0, -MathF.Sqrt(2) / 2, MathF.Sqrt(2) / 2));
var intersection = new Intersection(MathF.Sqrt(2), plane);
var info = new IntersectionInfo(new Intersections(intersection), intersection, ray);
var actual = world.ReflectedColor(info, 0);
Assert.Equal(Color.Black, actual);
}
public void ReflectedColorReflectiveMaterial()
{
var world = new DefaultWorld();
var plane = new Plane(
Matrix4x4.Translation(0, -1, 0),
new Material(reflective: 0.5f));
world.Shapes.Add(plane);
var ray = new Ray(new Point(0, 0, -3), new Vector(0, -MathF.Sqrt(2) / 2, MathF.Sqrt(2) / 2));
var intersection = new Intersection(MathF.Sqrt(2), plane);
var info = new IntersectionInfo(new Intersections(intersection), intersection, ray);
var actual = world.ReflectedColor(info, 1);
Assert.Equal(new Color(0.19049118f, 0.23811397f, 0.1428684f), actual);
}