public void AssignTransform()
{
var p = new TestPattern {
Transform = Translation(1f, 2f, 3f)
};
Assert.That.MatricesAreEqual(p.Transform.Matrix, Translation(1f, 2f, 3f));
}
public void PatternWithObjectTransform()
{
var p = new TestPattern();
var s = new Sphere(Scale(2f));
var c = p.ColorAtEntity(s, Point(2f, 3f, 4f));
Assert.That.VectorsAreEqual(c, new Color(1f, 1.5f, 2f));
}
public void PatternWithBothTransformed()
{
var p = new TestPattern {
Transform = Translation(.5f, 1f, 1.5f)
};
var s = new Sphere(Scale(2f));
var c = p.ColorAtEntity(s, Point(2.5f, 3f, 3.5f));
Assert.That.VectorsAreEqual(c, new Color(.75f, .5f, .25f));
}
public void StripesWithPatternTransform_ShouldWork()
{
var shape = new Sphere();
var pattern = new TestPattern();
pattern.Transform = Transformation.Scaling(2, 2, 2);
var c = pattern.PatternAtShape(shape, new Point(2, 3, 4));
Assert.Equal(new Color(1, 1.5, 2), c);
}
public void StripesWithBothObjectAndPatternTransforms_ShouldWork()
{
var shape = new Sphere();
shape.Transform = Transformation.Scaling(2, 2, 2);
var pattern = new TestPattern();
pattern.Transform = Transformation.Translation(0.5, 1, 1.5);
var c = pattern.PatternAtShape(shape, new Point(2.5, 3, 3.5));
Assert.Equal(new Color(0.75, 0.5, 0.25), c);
}
public void PatternTransform()
{
var p = new TestPattern();
Assert.That.MatricesAreEqual(p.Transform, Transform.Identity);
}