public void GradientLinearlyInterpolatesBetweenColors()
{
var pattern = new GradientPattern(ColourFactory.White, ColourFactory.Black);
Assert.AreEqual(ColourFactory.White, pattern.PatternAt(new Point(0, 0, 0)));
Assert.AreEqual(new Colour(0.75,0.75,0.75), pattern.PatternAt(new Point(0.25, 0, 0)));
Assert.AreEqual(new Colour(0.5, 0.5, 0.5), pattern.PatternAt(new Point(0.5, 0, 0)));
Assert.AreEqual(new Colour(0.25, 0.25, 0.25), pattern.PatternAt(new Point(0.75, 0, 0)));
}
public void TestPatternGradientCreate()
{
var pattern = new GradientPattern(Color.White, Color.Black);
Assert.AreEqual(pattern.PatternAt(Point.Zero), Color.White);
Assert.AreEqual(pattern.PatternAt(new Point(0.25, 0, 0)), new Color(0.75, 0.75, 0.75));
Assert.AreEqual(pattern.PatternAt(new Point(0.5, 0, 0)), new Color(0.5, 0.5, 0.5));
Assert.AreEqual(pattern.PatternAt(new Point(0.75, 0, 0)), new Color(0.25, 0.25, 0.25));
}
public void Gradient()
{
GradientPattern pattern = new GradientPattern(SolidPattern.White, SolidPattern.Black);
Assert.True(Color.White == pattern.PatternAt(new Point(0, 0, 0)));
Assert.True(new Color(0.75f, 0.75f, 0.75f) == pattern.PatternAt(new Point(0.25f, 0, 0)));
Assert.True(new Color(0.5f, 0.5f, 0.5f) == pattern.PatternAt(new Point(0.5f, 0, 0)));
Assert.True(new Color(0.25f, 0.25f, 0.25f) == pattern.PatternAt(new Point(0.75f, 0, 0)));
}
public void GradientPattern()
{
GradientPattern pattern = new GradientPattern(white, black);
Assert.AreEqual(pattern.PatternAt(Tuple.Point(0, 0, 0)), white);
Assert.AreEqual(pattern.PatternAt(Tuple.Point(0.25, 0, 0)), new Color(0.75, 0.75, 0.75));
Assert.AreEqual(pattern.PatternAt(Tuple.Point(0.5, 0, 0)), new Color(0.5, 0.5, 0.5));
Assert.AreEqual(pattern.PatternAt(Tuple.Point(0.75, 0, 0)), new Color(0.25, 0.25, 0.25));
}
public void AGradientLinearlyInterpolatesBetweenTwoColors()
{
var pattern = new GradientPattern(Color.WHITE, Color.BLACK);
Assert.AreEqual(Color.WHITE, pattern.PatternAt(new Point(0, 0, 0)));
Assert.AreEqual(new Color(0.75, 0.75, 0.75), pattern.PatternAt(new Point(0.25, 0, 0)));
Assert.AreEqual(new Color(0.5, 0.5, 0.5), pattern.PatternAt(new Point(0.5, 0, 0)));
Assert.AreEqual(new Color(0.25, 0.25, 0.25), pattern.PatternAt(new Point(0.75, 0, 0)));
}
public void T06_Gradient()
{
Pattern pattern = new GradientPattern(new SolidColorPattern(Color.white),
new SolidColorPattern(Color.black));
Assert.AreEqual(Color.white, pattern.PatternAt(new Point(0, 0, 0)));
Assert.AreEqual(new Color(0.75, 0.75, 0.75), pattern.PatternAt(new Point(0.25, 0, 0)));
Assert.AreEqual(new Color(0.5, 0.5, 0.5), pattern.PatternAt(new Point(0.5, 0, 0)));
Assert.AreEqual(new Color(0.25, 0.25, 0.25), pattern.PatternAt(new Point(0.75, 0, 0)));
}
///-------------------------------------------------------------------------------------------------
/// <summary> Main entry-point for this application. </summary>
///
/// <remarks> Kemp, 1/18/2019. </remarks>
///
/// <param name="args"> An array of command-line argument strings. </param>
///-------------------------------------------------------------------------------------------------
static void Main(string[] args)
{
World defaultWorld = new World();
defaultWorld.AddLight(new LightPoint(new Point(-10, 10, -10), new Color(1, 1, 1)));
Sphere s1 = new Sphere();
s1.Material = new Material();
s1.Material.Color = new Color(0.8, 1.0, 0.6);
s1.Material.Diffuse = new Color(0.7, 0.7, 0.7);
s1.Material.Specular = new Color(0.2, 0.2, 0.2);
Sphere s2 = new Sphere();
s2.Transform = MatrixOps.CreateScalingTransform(0.5, 0.5, 0.5);
defaultWorld.AddObject(s1);
defaultWorld.AddObject(s2);
Color white = new Color(1, 1, 1);
Color black = new Color(0, 0, 0);
Sphere s = new Sphere();
{
Material m = new Material();
m.Pattern = new StripePattern(white, black);
m.Ambient = new Color(1, 1, 1);
m.Diffuse = new Color(0, 0, 0);
m.Specular = new Color(0, 0, 0);
m.Shininess = 0;
RayTracerLib.Vector eyev = new RayTracerLib.Vector(0, 0, -1);
RayTracerLib.Vector normalv = new RayTracerLib.Vector(0, 0, -1);
Point p1 = new Point(0.9, 0, 0);
Point p2 = new Point(1.1, 0, 0);
LightPoint light = new LightPoint(new Point(0, 0, -10), new Color(1, 1, 1));
Color c1 = Ops.Lighting(m, s, light, p1, eyev, normalv, false);
Color c2 = Ops.Lighting(m, s, light, p2, eyev, normalv, false);
bool foo1 = (c1.Equals(white));
bool foo2 = (c2.Equals(black));
Console.WriteLine("~~~~~~~~~~~~~~~~~~~~~");
}
//public void PatternWithObjectTransformation()
{
Shape shape = new Sphere()
{
Transform = MatrixOps.CreateScalingTransform(2, 2, 2)
};
Pattern pattern = new TestPattern {
Transform = MatrixOps.CreateTranslationTransform(0.5, 1, 1.5)
};
Color c = pattern.PatternAtObject(shape, new Point(2.5, 3, 3.5));
bool foo1 = (c.Equals(new Color(0.75, 0.5, 0.25)));
Console.WriteLine("~~~~~~~~~~~~~~~~~~~~~");
}
//public void GradientInterpolates()
{
Pattern pattern = new GradientPattern(black, white);
bool foo1 = (pattern.PatternAt(new Point(0, 0, 0)).Equals(black));
bool foo2 = (pattern.PatternAt(new Point(0.25, 0, 0)).Equals(new Color(0.25, 0.25, 0.25)));
bool foo3 = (pattern.PatternAt(new Point(0.5, 0, 0)).Equals(new Color(0.5, 0.5, 0.5)));
bool foo4 = (pattern.PatternAt(new Point(0.75, 0, 0)).Equals(new Color(0.75, 0.75, 0.75)));
Console.WriteLine("~~~~~~~~~~~~~~~~~~~~~");
}
{
Pattern pattern = new CheckedPattern(black, white);
bool foo1 = (pattern.PatternAt(new Point(0, 0, 0)).Equals(black));
bool foo2 = (pattern.PatternAt(new Point(0.99, 0, 0)).Equals(black));
bool foo3 = (pattern.PatternAt(new Point(1.01, 0, 0)).Equals(white));
Console.WriteLine("~~~~~~~~~~~~~~~~~~~~~");
}
Console.Write("Press Enter to finish ... ");
Console.Read();
}