public void ApplyingAPatternTransformation()
{
var transformation = Transform.Translation(1, 2, 3);
var pattern = new TestPattern
{
Transform = transformation
};
Assert.AreEqual(transformation, pattern.Transform);
}
public void APatternWithAPatternTransformation()
{
var shape = new Sphere();
var pattern = new TestPattern
{
Transform = Transform.Scaling(2, 2, 2)
};
var c = pattern.PatternAtObject(shape, new Point(2, 3, 4));
Assert.AreEqual(new Color(1, 1.5, 2), c);
}
public void APatternWithBothAnObjectAndPatternTransformation()
{
var shape = new Sphere
{
Transform = Transform.Scaling(2, 2, 2)
};
var pattern = new TestPattern
{
Transform = Transform.Translation(0.5, 1, 1.5)
};
var c = pattern.PatternAtObject(shape, new Point(2.5, 3, 3.5));
Assert.AreEqual(new Color(0.75, 0.5, 0.25), c);
}
public void TheDefaultPatternTransformation()
{
var pattern = new TestPattern();
Assert.AreEqual(Matrix.Identity(4), pattern.Transform);
}