public void TestAssignTransform()
{
var shape = new TestAShape();
shape.Transform = Matrix4.Translation(2, 3, 4);
Assert.AreEqual(Matrix4.Translation(2, 3, 4), shape.Transform);
}
public void TestNormalTransFormedShape()
{
var shape = new TestAShape
{
Transform = Matrix4.Scaling(1, 0.5, 1) * Matrix4.RotationZ(System.Math.PI / 5)
};
var n = shape.Normal(Tuple.Point(0, 0.70711, -0.70711));
Assert.AreEqual(Tuple.Vector(0, 0.97014, -0.24254), n);
}
public void TestNormalTranslatedShape()
{
var shape = new TestAShape
{
Transform = Matrix4.Translation(0, 1, 0)
};
var n = shape.Normal(Tuple.Point(0, 1.70711, -0.70711));
Assert.AreEqual(Tuple.Vector(0, 0.70711, -0.70711), n);
}
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);
}
public void TestShapeMaterialSet()
{
var shape = new TestAShape();
shape.Material.Ambient = 1;
var mat = new Material
{
Ambient = 1
};
Assert.AreEqual(mat, shape.Material);
}
public void TestTransform()
{
var shape = new TestAShape();
Assert.AreEqual(Matrix4.Identity, shape.Transform);
}
public void TestShapeMaterial()
{
var shape = new TestAShape();
Assert.AreEqual(new Material(), shape.Material);
}
