public override void Build()
        {
            vp            = ViewPlane.Create(1024, 768, SystemOfCoordinates.SSC_INT);
            vp.NumSamples = 4;

            backgroundColor = ColorUtils.BLACK;
            tracer          = new AreaLighting(this);

            MultiJittered sampler = new MultiJittered(vp.NumSamples);

            sampler.Generate();

            AmbientOccluder occluder = new AmbientOccluder(ColorUtils.WHITE, 0.0);

            occluder.Sampler = sampler;
            //occluder.ScaleRadiance = 1.0;
            //occluder.Color = ColorUtils.WHITE;
            //occluder.SetMinAmount(0.0f);
            AmbientLight = occluder;

            Pinhole pinhole = new Pinhole(new Vec3(0.0, 0.0, 500.0),
                                          new Vec3(0.0, 0.0, 0.0),
                                          new Vec3(0.0, 1.0, 0.0),
                                          2000.0f);

            Camera = pinhole;

            Emissive emissive = new Emissive(ColorUtils.WHITE, 20.0f);

            //emissive.ScaleRadiance = 1.0f;
            //emissive.Ce = new Vec3(1.0, 1.0, 1.0);

            sampler = new MultiJittered(256);
            sampler.Generate();

            ConcaveSphere sphere = new ConcaveSphere(new Vec3(), 10000.0);

            //sphere.Radius = 10000.0;
            sphere.Sampler          = sampler;
            sphere.Material         = emissive;
            sphere.EmissiveMaterial = emissive;
            sphere.Shadows          = false;
            AddObject(sphere);

            sampler = new MultiJittered(256);
            sampler.Generate();

            EnvironmentLight l = new EnvironmentLight();

            l.Material = emissive;
            l.Sampler  = sampler;
            l.Sampler.MapSamplesToHemisphere(10);
            l.Shadows = true;
            AddLight(l);

            //Rectangle rectangle = new Rectangle(new Vec3(0.0, 100.0, 0.0),
            //                                    new Vec3(216.0, 0.0, 0.0),
            //                                    new Vec3(0.0, 0.0, 216.0));
            //emissive = new Emissive();
            //emissive.ScaleRadiance = 1.0f;
            //emissive.Ce = ColorUtils.WHITE;

            //rectangle.Material = emissive;
            //rectangle.Sampler = sampler;
            //rectangle.Shadows = false;
            //AddObject(rectangle);

            AreaLight areaLight = new AreaLight();

            areaLight.Object  = sphere;
            areaLight.Shadows = true;
            AddLight(areaLight);

            Vec3 lightGreen = new Vec3(0.65f, 1.0f, 0.30f);
            Vec3 green      = new Vec3(0.0f, 0.6f, 0.3f);
            Vec3 darkGreen  = new Vec3(0.0f, 0.41f, 0.41f);

            Vec3 yellow     = new Vec3(1.0f, 1.0f, 0.0f);
            Vec3 darkYellow = new Vec3(0.61f, 0.61f, 0.0f);

            Vec3 lightPurple = new Vec3(0.65f, 0.3f, 1.0f);
            Vec3 darkPurple  = new Vec3(0.5f, 0.0f, 1.0f);

            Vec3 brown  = new Vec3(0.71f, 0.40f, 0.16f);
            Vec3 orange = new Vec3(1.0f, 0.75f, 0.0f);

            Matte matte = new Matte();

            matte.SetKa(0.2f);
            matte.SetKd(0.5f);
            matte.SetColor(ColorUtils.WHITE);

            Plane p = new Plane(new Vec3(0, -85, 0), new Vec3(0, 1, 0));

            p.Material = matte;
            AddObject(p);

            Phong m = new Phong();

            m.SetKa(0.2f);
            m.SetKd(0.65f);
            m.SetKs(0.1f);
            m.SetExp(8.0f);
            m.SetColor(ColorUtils.WHITE);

            Sphere s = new Sphere(new Vec3(5, 3, 0), 30);

            s.Material = m;

            AddObject((Sphere)s.Clone());

            s.SetCenter(45, -7, -60);
            s.Radius = 20;
            m.SetColor(brown);
            AddObject((Sphere)s.Clone());

            s.SetCenter(40, 43, -100);
            s.Radius = 17;
            m.SetColor(darkGreen);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-20, 28, -15);
            s.Radius = 20;
            m.SetColor(orange);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-25, -7, -35);
            s.Radius = 27;
            m.SetColor(green);
            AddObject((Sphere)s.Clone());

            s.SetCenter(20, -27, -35);
            s.Radius = 25;
            m.SetColor(lightGreen);
            AddObject((Sphere)s.Clone());

            s.SetCenter(35, 18, -35);
            s.Radius = 22;
            m.SetColor(green);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-57, -17, -50);
            s.Radius = 15;
            m.SetColor(brown);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-47, 16, -80);
            s.Radius = 23;
            m.SetColor(lightGreen);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-15, -32, -60);
            s.Radius = 22;
            m.SetColor(darkGreen);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-35, -37, -80);
            s.Radius = 22;
            m.SetColor(darkYellow);
            AddObject((Sphere)s.Clone());

            s.SetCenter(10, 43, -80);
            s.Radius = 22;
            m.SetColor(darkYellow);
            AddObject((Sphere)s.Clone());

            s.SetCenter(30, -7, -80);
            s.Radius = 10;
            m.SetColor(darkYellow);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-40, 48, -110);
            s.Radius = 18;
            m.SetColor(darkGreen);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-10, 53, -120);
            s.Radius = 18;
            m.SetColor(brown);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-55, -52, -100);
            s.Radius = 10;
            m.SetColor(lightPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(5, -52, -100);
            s.Radius = 15;
            m.SetColor(brown);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-20, -57, -120);
            s.Radius = 15;
            m.SetColor(darkPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(55, -27, -100);
            s.Radius = 17;
            m.SetColor(darkGreen);
            AddObject((Sphere)s.Clone());

            s.SetCenter(50, -47, -120);
            s.Radius = 15;
            m.SetColor(brown);
            AddObject((Sphere)s.Clone());

            s.SetCenter(70, -42, -150);
            s.Radius = 10;
            m.SetColor(lightPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(5, 73, -130);
            s.Radius = 12;
            m.SetColor(lightPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(66, 21, -130);
            s.Radius = 13;
            m.SetColor(darkPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(72, -12, -140);
            s.Radius = 12;
            m.SetColor(lightPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(64, 5, -160);
            s.Radius = 11;
            m.SetColor(green);
            AddObject((Sphere)s.Clone());

            s.SetCenter(55, 38, -160);
            s.Radius = 12;
            m.SetColor(lightPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-73, -2, -160);
            s.Radius = 12;
            m.SetColor(lightPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(30, -62, -140);
            s.Radius = 15;
            m.SetColor(darkPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(25, 63, -140);
            s.Radius = 15;
            m.SetColor(darkPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-60, 46, -140);
            s.Radius = 15;
            m.SetColor(darkPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-30, 68, -130);
            s.Radius = 12;
            m.SetColor(lightPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(58, 56, -180);
            s.Radius = 11;
            m.SetColor(green);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-63, -39, -180);
            s.Radius = 11;
            m.SetColor(green);
            AddObject((Sphere)s.Clone());

            s.SetCenter(46, 68, -200);
            s.Radius = 10;
            m.SetColor(lightPurple);
            AddObject((Sphere)s.Clone());

            s.SetCenter(-3, -72, -130);
            s.Radius = 12;
            m.SetColor(lightPurple);
            AddObject(s);
        }
        public override void Build()
        {
            vp            = ViewPlane.Create(1920, 1080, SystemOfCoordinates.SSC_INT);
            vp.NumSamples = 100;
            vp.MaxDepth   = 5;

            backgroundColor = ColorUtils.BLACK;
            tracer          = new PathTrace(this);

            Ambient a = new Ambient();

            a.ScaleRadiance = 0.0f;
            AmbientLight    = a;

            Pinhole pinhole = new Pinhole(new Vec3(100, 45, 100),
                                          new Vec3(-10, 40, 0),
                                          new Vec3(0.0, 1.0, 0.0),
                                          800, 1.5f);

            Camera = pinhole;

            Emissive emissive = new Emissive(ColorUtils.WHITE, 1.5f);

            ConcaveSphere sphere = new ConcaveSphere();

            sphere.Radius   = 1000000;
            sphere.Shadows  = false;
            sphere.Material = emissive;
            AddObject(sphere);

            float ka = 0.2f;

            Matte m1 = new Matte();

            m1.SetKa(ka);
            m1.SetKd(0.60f);
            m1.SetColor(ColorUtils.WHITE);
            m1.SetSampler(new MultiJittered(vp.NumSamples));

            Sphere largeSphere = new Sphere(new Vec3(38, 20, -24), 20);

            largeSphere.Material = m1;
            AddObject(largeSphere);

            Matte m2 = new Matte();

            m2.SetKa(ka);
            m2.SetKd(0.5f);
            m2.SetColor(0.85f);
            m2.SetSampler(new MultiJittered(vp.NumSamples));

            Sphere smallSphere = new Sphere(new Vec3(34, 12, 13), 12);

            smallSphere.Material = m2;
            AddObject(smallSphere);

            Matte m3 = new Matte();

            m3.SetKa(ka);
            m3.SetKd(0.75f);
            m3.SetColor(0.73f, 0.22f, 0.0f);
            m3.SetSampler(new MultiJittered(vp.NumSamples));

            Sphere mediumSphere = new Sphere(new Vec3(-7, 15, 42), 16);

            mediumSphere.Material = m3;
            AddObject(mediumSphere);

            Matte m4 = new Matte();

            m4.SetKa(ka);
            m4.SetKd(0.75f);
            m4.SetColor(0.60f);
            m4.SetSampler(new MultiJittered(vp.NumSamples));

            float b = 0;
            float t = 85;
            float r = 22;

            SolidCylinder cylinder = new SolidCylinder(b, t, r, m4);

            AddObject(cylinder);

            Matte m5 = new Matte();

            m5.SetKa(ka);
            m5.SetKd(0.75f);
            m5.SetColor(0.95f);
            m5.SetSampler(new MultiJittered(vp.NumSamples));

            Box box = new Box(new Vec3(-55, 0, -110),
                              new Vec3(-25, 60, 65),
                              m5);

            AddObject(box);

            Matte m6 = new Matte();

            m6.SetKa(0.15f);
            m6.SetKd(0.95f);
            m6.SetColor(0.37f, 0.43f, 0.08f);
            m6.SetSampler(new MultiJittered(vp.NumSamples));

            Plane plane = new Plane(new Vec3(0, 0.01, 0),
                                    new Vec3(0, 1, 0),
                                    m6);

            AddObject(plane);
        }