public void IntersectingConeEndCaps(
double ox,
double oy,
double oz,
double dx,
double dy,
double dz,
int count)
{
var shape = new Cone()
{
Minimum = -0.5,
Maximum = 0.5,
IsClosed = true,
};
var origin = Vector4.CreatePosition(ox, oy, oz);
var direction = Vector4.CreateDirection(dx, dy, dz).Normalize();
var r = new Ray(origin, direction);
var xs = shape.LocalIntersect(r);
Assert.Equal(count, xs.Count);
}
public void AreaLightIntensityFunction(
double px,
double py,
double pz,
double result)
{
var w = new DefaultWorld();
var corner = Vector4.CreatePosition(-0.5, -0.5, -5);
var v1 = Vector4.CreateDirection(1, 0, 0);
var v2 = Vector4.CreateDirection(0, 1, 0);
var light = new AreaLight(
corner,
v1,
2,
v2,
2,
Color.White);
var pt = Vector4.CreatePosition(px, py, pz);
var intensity = light.GetIntensity(pt, w);
Assert.Equal(result, intensity);
}
public void FindSinglePointOnAnAreaLight(
double u,
double v,
double rx,
double ry,
double rz)
{
var corner = Vector4.CreatePosition(0, 0, 0);
var v1 = Vector4.CreateDirection(2, 0, 0);
var v2 = Vector4.CreateDirection(0, 0, 1);
var light = new AreaLight(
corner,
v1,
4,
v2,
2,
Color.White);
var pt = light.GetPoint(u, v);
var expected = Vector4.CreatePosition(rx, ry, rz);
Assert.Equal(expected, pt);
}
public void TransformBoundingBox()
{
var cmp = Vector4.GetEqualityComparer(0.0001);
var box = new BoundingBox(
Vector4.CreatePosition(-1, -1, -1),
Vector4.CreatePosition(1, 1, 1));
var m =
Transform.RotateX(Math.PI / 4) *
Transform.RotateY(Math.PI / 4);
var box2 = box * m;
Assert.Equal(
Vector4.CreatePosition(-1.4142, -1.7071, -1.7071),
box2.Min,
cmp);
Assert.Equal(
Vector4.CreatePosition(1.4142, 1.7071, 1.7071),
box2.Max,
cmp);
}
public static Tuple <World, Camera> Example15(int width, int height)
{
var world = new World();
var sky = new Plane()
{
Transform =
Transform.Translate(0, 30, 0) *
Transform.RotateX(Math.PI),
Material = new Material()
{
Color = Color.White,
},
};
var floor = new Plane()
{
Material = new Material
{
Specular = 0,
// Color = new Color(1, 1, 1),
Diffuse = 0.7,
Ambient = 0.3,
Pattern = new CheckersPattern(
new Color(0.6, 0.6, 0.6),
new Color(0.45, 0.45, 0.45))
{
// Transform = Transform.Scale(2, 2, 2),
},
},
};
var sphere = new Sphere()
{
Transform =
Transform.Translate(0, 1, 0),
Material = new Material
{
Specular = 1.0,
Ambient = 0.0,
Diffuse = 0.001,
Shininess = 350,
Color = new Color(0.05, 0.05, 0.2),
Transparency = 0.90,
RefractiveIndex = 1.52,
Reflective = 0.98,
},
};
var smallSphere1 = new Sphere()
{
Transform =
Transform.Translate(0, 0.5, -2) *
Transform.Scale(0.5, 0.5, 0.5),
Material = new Material
{
Specular = 0.2,
Ambient = 0.2,
Diffuse = 0.7,
Shininess = 20,
Color = new Color(0.8, 0.3, 0.4),
},
};
var smallSphere2 = new Sphere()
{
Transform =
Transform.Translate(0, 0.75, 3.5) *
Transform.Scale(0.75, 0.75, 0.75),
Material = new Material
{
Specular = 0.2,
Ambient = 0.1,
Diffuse = 0.9,
Shininess = 50,
Color = new Color(0.2, 0.7, 0.6),
},
};
var light1 = new PointLight(
Vector4.CreatePosition(-10, 10, -10),
Color.White);
world.Objects.Add(sky);
world.Objects.Add(floor);
world.Objects.Add(sphere);
world.Objects.Add(smallSphere1);
world.Objects.Add(smallSphere2);
world.Lights.Add(light1);
var camera = new Camera(width, height, Math.PI / 4)
{
Transform = Transform.View(
Vector4.CreatePosition(2.4, 1.08, -5.4),
Vector4.CreatePosition(0, 0.7, 0),
Vector4.CreateDirection(0, 1, 0)),
ProgressMonitorFactory =
(_rows, _cols) => new DefaultProgressMonitor(),
};
return(Tuple.Create(world, camera));
}
public Scene Build(int width, int height)
{
var camera = new Camera(width, height, 0.7854)
{
Transform = Transform.View(
Vector4.CreatePosition(0, 5, -10),
Vector4.CreatePosition(0, 0.5, 0),
Vector4.CreateDirection(0, 1, 0)),
};
var sky = new Sphere()
{
Transform = Transform.Scale(100, 100, 100),
Material = new Material()
{
Ambient = 0.1,
Specular = 0,
Diffuse = 1.0,
Color = Color.FromByteValues(193, 207, 252),
},
};
var metal1 = new Material()
{
Pattern = new GradientPattern(
Color.FromByteValues(56, 63, 73),
Color.FromByteValues(79, 77, 75))
{
Transform =
Transform.Translate(-1, 0, 0) *
Transform.RotateY(Math.PI / 3) *
Transform.Scale(2, 1, 1),
},
Ambient = 0.3,
Reflective = 0.12,
Specular = 0.27,
Diffuse = 1.0,
Shininess = 3,
};
var metal2 = metal1.Extend(x =>
{
x.Pattern = new GradientPattern(
Color.FromByteValues(93, 89, 104),
Color.FromByteValues(65, 61, 76))
{
Transform =
Transform.Translate(-1, 0, 0) *
Transform.RotateY(Math.PI / 2) *
Transform.Scale(2, 1, 1),
};
});
var metal3 = metal1.Extend(x =>
{
x.Pattern = new GradientPattern(
Color.FromByteValues(87, 109, 132),
Color.FromByteValues(53, 67, 81))
{
Transform =
Transform.Translate(-1, 0, 0) *
Transform.RotateY(-Math.PI / 2) *
Transform.Scale(2, 1, 1),
};
});
var glass1 = new Material()
{
Transparency = 0.9,
Reflective = 0.3,
RefractiveIndex = 1.52,
Specular = 0.9,
Shininess = 300,
Diffuse = 0.05,
Ambient = 0,
};
var p = new Plane()
{
Material = new Material()
{
Pattern = new CheckersPattern(
Color.FromByteValues(249, 243, 229),
Color.FromByteValues(226, 220, 204)),
Ambient = 0.5,
Specular = 0,
Diffuse = 0.4,
},
};
var small =
Transform.Translate(0, 0.25, 0) *
Transform.Scale(0.25, 0.25, 0.25);
var med =
Transform.Translate(0, 0.4, 0) *
Transform.Scale(0.4, 0.4, 0.4);
var large =
Transform.Translate(0, 0.6, 0) *
Transform.Scale(0.6, 0.6, 0.6);
var xlarge =
Transform.Translate(0, 0.75, 0) *
Transform.Scale(0.75, 0.75, 0.75);
var sizes = new[]
{
small,
med,
large,
xlarge,
};
var materials = new[]
{
metal1,
metal2,
metal3,
glass1,
};
const int seed = 12345;
var rng = new Random(seed);
var g = new Group();
for (var i = 0; i < 100; i++)
{
var size = sizes[i % sizes.Length];
var mat = materials[i % materials.Length];
var x = 20 - rng.NextDouble() * 40;
var z = 20 - rng.NextDouble() * 40;
var t = size * Transform.Translate(x, 0, z);
var s = new Sphere()
{
Transform = t,
Material = mat,
};
g.Add(s);
}
var light = new PointLight(
Vector4.CreatePosition(-10, 10, -10),
Color.White);
var world = new World()
{
Objects = new Shape[] { sky, p, g },
Lights = new ILight[] { light },
};
return(new Scene(world, camera));
}
public static Tuple <World, Camera> Example9(int width, int height)
{
var world = new World();
var solidBlack = new SolidPattern(Color.Black);
var stripes1 = new StripePattern(
new Color(0.0, 0.0, 0.0),
new Color(0.0, 0.0, 0.5))
{
};
var stripes2 = new StripePattern(
new Color(0.0, 0.0, 0.0),
new Color(0.5, 0.0, 0.0))
{
Transform = Transform.RotateY(Math.PI / 2),
};
var stripes3 = new StripePattern(
new Color(0.6, 0.6, 0.6),
new Color(0.3, 0.3, 0.3))
{
Transform = Transform.RotateY(Math.PI / 4),
};
var stripes4 = new StripePattern(
new Color(0.6, 0.6, 0.6),
new Color(0.3, 0.3, 0.3))
{
Transform = Transform.RotateY(-Math.PI / 4),
};
var blended1 = new BlendedPattern(stripes1, stripes2)
{
Transform =
Transform.Scale(0.5, 0.5, 0.5),
};
var blended2 = new BlendedPattern(stripes3, stripes4)
{
Transform =
Transform.Scale(0.5, 0.5, 0.5),
};
var blended = new BlendedPattern(blended1, blended2);
var floor = new Plane
{
Material = new Material
{
Ambient = 0.6,
Diffuse = 0.2,
Specular = 0,
Pattern = blended,
},
};
world.Objects.Add(floor);
var ceil = new Plane
{
Transform =
Transform.Translate(0, 10, 0) *
Transform.RotateX(Math.PI),
Material = new Material
{
Ambient = 0.3,
Diffuse = 0.6,
Specular = 0,
Pattern = blended,
},
};
world.Objects.Add(ceil);
const int n = 48;
for (var i = 0; i < n; i++)
{
var s0 = new Sphere
{
Material = new Material
{
Reflective = 1.0,
Transparency = 1.0,
RefractiveIndex = 1.52,
Diffuse = 0.1,
Ambient = 0,
Pattern = new GradientPattern(
new Color(0.6, 0.1, 0.1),
new Color(0.1, 0.1, 0.6))
{
Transform =
Transform.Scale(2, 1, 1),
}
},
Transform =
Transform.Translate(-8.0 + i * (64.0 / n), 0.5, 0) *
Transform.Scale(0.3, 0.3, 0.3),
};
world.Objects.Add(s0);
}
var cyl = new Cylinder()
{
Transform =
Transform.Scale(20, 1, 20),
};
var light = new PointLight(Vector4.CreatePosition(0, 5, 0), Color.White);
world.Lights.Add(light);
var camera = new Camera(width, height, Math.PI / 4.2)
{
Transform = Transform.View(
Vector4.CreatePosition(-5, 5, -5),
Vector4.CreatePosition(0, 0, 0),
Vector4.CreateDirection(0, 0, 1)),
ProgressMonitorFactory =
(_rows, _cols) => new DefaultProgressMonitor(),
};
return(Tuple.Create(world, camera));
}
public static Tuple <World, Camera> Example8(int width, int height)
{
var world = new World();
var skyblue = new Color(181.0 / 255, 228.0 / 255, 231.0 / 255);
var sky = new Material
{
Color = skyblue,
Specular = 0,
Ambient = 0.2,
Diffuse = 0.3,
};
var floor = new Plane()
{
Material = new Material()
{
Specular = 0,
Ambient = 0.4,
Diffuse = 0.5,
Pattern = new CheckersPattern(
new Color(0.925, 0.870, 0.670),
new Color(0.886, 0.804, 0.610))
{
Transform =
Transform.Scale(0.25, 0.25, 0.25),
},
},
};
world.Objects.Add(floor);
var w1 = new Plane()
{
Transform =
Transform.Translate(0, 0, 100) *
Transform.RotateX(-Math.PI / 2),
Material = sky,
};
world.Objects.Add(w1);
var w2 = new Plane()
{
Transform =
Transform.Translate(0, 0, -100) *
Transform.RotateX(Math.PI / 2),
Material = sky,
};
world.Objects.Add(w2);
var w3 = new Plane()
{
Transform =
Transform.Translate(100, 0, 0) *
Transform.RotateZ(Math.PI / 2),
Material = sky,
};
world.Objects.Add(w3);
var w4 = new Plane()
{
Transform =
Transform.Translate(-100, 0, 0) *
Transform.RotateZ(-Math.PI / 2),
Material = sky,
};
world.Objects.Add(w4);
var w5 = new Plane()
{
Transform =
Transform.Translate(0, 100, 0) *
Transform.RotateZ(-Math.PI),
Material = sky,
};
world.Objects.Add(w5);
var metallic1 = new Material()
{
Color = new Color(96.0 / 255, 93.0 / 255, 82.0 / 255),
Reflective = 0.17,
Ambient = 0.2,
Diffuse = 0.54,
Shininess = 10,
Specular = 0.3,
};
var metallic2 = new Material()
{
Color = new Color(59.0 / 255, 47.0 / 255, 57.0 / 255),
Reflective = 0.1,
Diffuse = 0.8,
Shininess = 5,
Specular = 0.3,
};
var metallic3 = new Material()
{
Color = new Color(32.0 / 255, 132.0 / 255, 70.0 / 255),
Reflective = 0.14,
Diffuse = 0.7,
Shininess = 20,
Specular = 0.4,
};
var glass = new Material()
{
Color = new Color(0.1, 0.05, 0.2),
Reflective = 0.72,
Transparency = 0.72,
RefractiveIndex = Water,
Diffuse = 0.32,
Ambient = 0.01,
Specular = 1.0,
Shininess = 350,
};
glass.Pattern = new GradientPattern(
new Color(231.0 / 255, 128.0 / 255, 102.0 / 255),
new Color(70.0 / 255, 143.0 / 255, 30.0 / 255))
{
Transform =
Transform.Translate(1.0, 0, 0) *
Transform.Scale(2.0, 1, 1),
};
var s1 = new Sphere()
{
Transform =
Transform.Translate(0, 1, 0),
Material = metallic1,
};
world.Objects.Add(s1);
var s2 = new Sphere()
{
Transform =
Transform.Translate(-1.8, 0.5, -0.7) *
Transform.Scale(0.5, 0.5, 0.5),
Material = glass,
};
world.Objects.Add(s2);
var s3 = new Sphere()
{
Transform =
Transform.Translate(-0.2, 0.3, -1.5) *
Transform.Scale(0.3, 0.3, 0.3),
Material = glass,
};
world.Objects.Add(s3);
var s4 = new Sphere()
{
Transform =
Transform.Translate(-3.0, 0.7, 1.0) *
Transform.Scale(0.7, 0.7, 0.7),
Material = metallic3,
};
world.Objects.Add(s4);
var s5 = new Sphere()
{
Transform =
Transform.Translate(1.2, 0.5, -0.85) *
Transform.Scale(0.5, 0.5, 0.5),
Material = metallic2,
};
world.Objects.Add(s5);
var c1 = new Cube()
{
Transform =
Transform.Translate(0, 0.999, -7) *
Transform.Scale(2, 2, 2) *
Transform.RotateY(Math.PI / 5),
Material = new Material
{
Color = new Color(0.8, 0.2, 0.6),
Reflective = 0.1,
Diffuse = 0.8,
},
};
world.Objects.Add(c1);
var c2 = new Cube()
{
Transform =
Transform.Translate(6, 0.999, -5) *
Transform.Scale(1.5, 1.5, 1.5) *
Transform.RotateY(-Math.PI / 7),
Material = new Material
{
Color = new Color(0.1, 0.5, 0.5),
Reflective = 0.1,
Diffuse = 0.8,
},
};
world.Objects.Add(c2);
var c3 = new Cube()
{
Transform =
Transform.Translate(-4, 0.999, -6) *
Transform.Scale(1.5, 1.5, 1.5) *
Transform.RotateY(-Math.PI / 5),
Material = new Material
{
Color = new Color(0.1, 0.5, 0.5),
Reflective = 0.1,
Diffuse = 0.8,
},
};
world.Objects.Add(c3);
var light = new PointLight(
Vector4.CreatePosition(-5, 10, -2),
Color.White);
world.Lights.Add(light);
var camera = new Camera(width, height, Math.PI / 4)
{
Transform = Transform.View(
Vector4.CreatePosition(2.5, 2.5, -5.5),
Vector4.CreatePosition(0.1, 0.9, -1.0),
Vector4.CreateDirection(0, 1, 0)),
ProgressMonitorFactory =
(_rows, _cols) => new DefaultProgressMonitor(),
};
return(Tuple.Create(world, camera));
}
public static Tuple <World, Camera> Example7(int width, int height)
{
var world = new World();
var floor = new Plane()
{
Material = new Material()
{
Pattern = new StripePattern(
new Color(0.1, 0.3, 0.5),
new Color(0.1, 0.5, 0.6))
{
Transform =
Transform.Scale(1, 1, 1) *
Transform.RotateY(Math.PI / 4),
},
},
};
world.Objects.Add(floor);
var wall = new Cube()
{
Transform =
Transform.Translate(0, 0.999, 0) *
Transform.Scale(1, 1, 0.1),
Material = new Material()
{
Reflective = 1,
Specular = 1.0,
Shininess = 300,
Diffuse = 0.0,
Ambient = 0.0,
// Color = new Color(0.01, 0.02, 0.2),
Transparency = 1.0,
RefractiveIndex = 1.52,
},
};
world.Objects.Add(wall);
var s1 = new Sphere()
{
Transform =
Transform.Translate(0, 0.25, -1.0) *
Transform.Scale(0.25, 0.25, 0.25),
Material = new Material()
{
Ambient = 0.2,
Diffuse = 0.95,
Shininess = 50,
Specular = 0.3,
Color = new Color(0.9, 0.5, 0.84),
},
};
world.Objects.Add(s1);
var s2 = new Sphere()
{
Transform =
Transform.Translate(-0.45, 0.25, 1.0) *
Transform.Scale(0.25, 0.25, 0.25),
Material = new Material()
{
Ambient = 0.2,
Diffuse = 0.95,
Shininess = 50,
Specular = 0.3,
Color = new Color(0.1, 0.7, 0.7),
},
};
world.Objects.Add(s2);
var light = new PointLight(
Vector4.CreatePosition(0, 10, -2),
Color.White);
world.Lights.Add(light);
var camera = new Camera(width, height, Math.PI / 3)
{
Transform = Transform.View(
Vector4.CreatePosition(0.6, 1.0, -2.3),
Vector4.CreatePosition(0, 0.25, 0),
Vector4.CreateDirection(0, 1, 0)),
ProgressMonitorFactory =
(_rows, _cols) => new DefaultProgressMonitor(),
};
return(Tuple.Create(world, camera));
}
public static Tuple <World, Camera> Create(int width, int height)
{
var world = new World();
var cam = new Camera(width, height, Math.PI / 3);
cam.Transform = Transform.View(
Vector4.CreatePosition(0, 10, 0),
Vector4.CreatePosition(0, 0.25, 0),
Vector4.CreateDirection(0, 0, -1));
cam.ProgressMonitorFactory =
(_rows, _cols) => new DefaultProgressMonitor();
var l1 = new PointLight(Vector4.CreatePosition(-20, 3.5, -50), Color.White);
var l2 = new PointLight(Vector4.CreatePosition(10, 100, 500), new Color(1, 1, 1));
var g1 = new GradientPattern(
new Color(0, 1, 0),
new Color(0, 0, 1));
g1.Transform =
Transform.RotateZ(-0.2) *
Transform.RotateY(Math.PI / 5) *
Transform.Translate(-1, 0, 0) *
Transform.Scale(2, 2, 2);
var s0 = new Sphere()
{
Transform =
Transform.Scale(2, 2, 2),
Material = new Material()
{
Pattern = g1,
Reflective = 0.9,
Transparency = 0.4,
RefractiveIndex = 1.5,
Ambient = 0.01,
Diffuse = 0.2,
Specular = 1.0,
Shininess = 350,
},
};
var s00 = new Sphere()
{
Transform =
Transform.Scale(1.8, 1.8, 1.8),
Material = new Material()
{
Pattern = g1,
Reflective = 0.9,
Transparency = 0.8,
RefractiveIndex = 1.0022,
Ambient = 0.001,
Diffuse = 0.1,
Specular = 5.0,
Shininess = 350,
},
};
var group1 = new Group();
const int n = 16;
for (var i = 0; i < n; i++)
{
var r = (2 * Math.PI / n) * i;
var s = new Sphere();
var g = 0.5 + (i * 0.5 / n);
var col = new Color(0.605, g, 0.869);
s.Material = new Material()
{
// Color = new Color(0.605, 0.904, 0.869),
Color = col,
Diffuse = 0.9,
Ambient = 0.1,
Specular = 0.2,
Shininess = 20,
};
var offset = rng.NextDouble() * 2.0;
s.Transform =
Transform.RotateY(r) *
Transform.Translate(0, 0, -5 + offset) *
Transform.Scale(0.5, 0.5, 0.5);
group1.Add(s);
}
group1.Transform =
Transform.RotateX(Math.PI / 3) *
Transform.RotateY(Math.PI / 1);
var floor = new Plane();
floor.Material = new Material()
{
Color = new Color(1, 1, 1),
Ambient = 1.0,
Specular = 0,
Diffuse = 0,
};
floor.Transform =
Transform.Translate(0, -100, 0);
floor.Material = new Material()
{
Specular = 0,
Pattern = new StripePattern(
new Color(0.22, 0.22, 0.22),
new Color(0.41, 0.41, 0.41))
{
Transform =
Transform.RotateY(Math.PI / 4) *
Transform.Scale(10, 1, 1),
},
};
world.Objects.Add(s0);
world.Objects.Add(s00);
world.Objects.Add(group1);
world.Objects.Add(floor);
world.Lights.Add(l1);
// world.Lights.Add(l2);
return(Tuple.Create(world, cam));
}
public Scene Build(int width, int height)
{
var camera = new Camera(width, height, 0.785)
{
Transform =
Transform.View(
Vector4.CreatePosition(-6, 6, -10),
Vector4.CreatePosition(6, 0, 6),
Vector4.CreateDirection(-0.45, 1, 0)),
};
var light1 = new PointLight(
Vector4.CreatePosition(50, 100, -50),
new Color(1, 1, 1));
var light2 = new PointLight(
Vector4.CreatePosition(-400, 50, -10),
new Color(0.2, 0.2, 0.2));
var whiteMaterial = new Material()
{
Color = new Color(0.8, 0.8, 0.8),
Diffuse = 0.7,
Ambient = 0.1,
Specular = 0.0,
Reflective = 0.1,
};
var blueMaterial = whiteMaterial.Extend(m =>
{
m.Color = new Color(0.537, 0.831, 0.914);
});
var redMaterial = whiteMaterial.Extend(m =>
{
m.Color = new Color(0.941, 0.322, 0.388);
});
var purpleMaterial = whiteMaterial.Extend(m =>
{
m.Color = new Color(0.373, 0.404, 0.550);
});
var standardTransform =
Matrix4x4.Identity
.Translate(1, -1, 1)
.Scale(0.5, 0.5, 0.5);
var largeObject =
standardTransform.Scale(3.5, 3.5, 3.5);
var mediumObject =
standardTransform.Scale(3, 3, 3);
var smallObject =
standardTransform.Scale(2, 2, 2);
var plane = new Plane()
{
Material = new Material()
{
Color = new Color(1, 1, 1),
Ambient = 1,
Diffuse = 0,
Specular = 0,
},
Transform =
Matrix4x4.Identity
.RotateX(Math.PI / 2)
.Translate(0, 0, 500),
};
var sphere = new Sphere()
{
Material = new Material()
{
Color = new Color(0.373, 0.404, 0.550),
Diffuse = 0.2,
Ambient = 0.0,
Specular = 1.0,
Shininess = 200,
Reflective = 0.7,
Transparency = 0.5,
RefractiveIndex = 1.5,
},
Transform = largeObject,
};
var cube1 = new Cube()
{
Material = whiteMaterial,
Transform =
mediumObject.Translate(4, 0, 0),
};
var cube2 = new Cube()
{
Material = blueMaterial,
Transform =
largeObject.Translate(8.5, 1.5, -0.6),
};
var cube3 = new Cube()
{
Material = redMaterial,
Transform =
largeObject.Translate(0, 0, 4),
};
var cube4 = new Cube()
{
Material = whiteMaterial,
Transform =
smallObject.Translate(4, 0, 4),
};
var cube5 = new Cube()
{
Material = purpleMaterial,
Transform =
mediumObject.Translate(7.5, 0.5, 4),
};
var cube6 = new Cube()
{
Material = whiteMaterial,
Transform =
mediumObject.Translate(-0.25, 0.25, 8),
};
var cube7 = new Cube()
{
Material = blueMaterial,
Transform =
largeObject.Translate(4, 1, 7.5),
};
var cube8 = new Cube()
{
Material = redMaterial,
Transform =
mediumObject.Translate(10, 2, 7.5),
};
var cube9 = new Cube()
{
Material = whiteMaterial,
Transform =
smallObject.Translate(8, 2, 12),
};
var cube10 = new Cube()
{
Material = whiteMaterial,
Transform =
smallObject.Translate(20, 1, 9),
};
var cube11 = new Cube()
{
Material = blueMaterial,
Transform =
largeObject.Translate(-0.5, -5, 0.25),
};
var cube12 = new Cube()
{
Material = redMaterial,
Transform =
largeObject.Translate(4, -4, 0),
};
var cube13 = new Cube()
{
Material = whiteMaterial,
Transform =
largeObject.Translate(8.5, -4, 0),
};
var cube14 = new Cube()
{
Material = whiteMaterial,
Transform =
largeObject.Translate(0, -4, 4),
};
var cube15 = new Cube()
{
Material = purpleMaterial,
Transform =
largeObject.Translate(-0.5, -4.5, 8),
};
var cube16 = new Cube()
{
Material = whiteMaterial,
Transform =
largeObject.Translate(0, -8, 4),
};
var cube17 = new Cube()
{
Material = whiteMaterial,
Transform =
largeObject.Translate(-0.5, -8.5, 8),
};
var world = new World();
world.Objects.Add(plane);
world.Objects.Add(sphere);
world.Objects.Add(cube1);
world.Objects.Add(cube2);
world.Objects.Add(cube3);
world.Objects.Add(cube4);
world.Objects.Add(cube5);
world.Objects.Add(cube6);
world.Objects.Add(cube7);
world.Objects.Add(cube8);
world.Objects.Add(cube9);
world.Objects.Add(cube10);
world.Objects.Add(cube11);
world.Objects.Add(cube12);
world.Objects.Add(cube13);
world.Objects.Add(cube14);
world.Objects.Add(cube15);
world.Objects.Add(cube16);
world.Objects.Add(cube17);
world.Lights.Add(light1);
world.Lights.Add(light2);
return(new Scene(world, camera));
}
public static Tuple <World, Camera> Example14(int width, int height)
{
var world = new World();
var art1 = CreateArtifact(new Color(1.0, 0.0, 0.0));
var art2 = CreateArtifact(new Color(0.0, 1.0, 0.0));
art2.Transform =
Transform.Scale(0.7, 0.7, 0.7) *
Transform.RotateZ(Math.PI / 5) *
Transform.RotateX(Math.PI / 6);
var art3 = CreateArtifact(new Color(0.0, 0.0, 1.0));
art3.Transform =
Transform.Scale(0.5, 0.5, 0.5) *
Transform.RotateZ(-Math.PI / 5) *
Transform.RotateY(Math.PI / 6) *
Transform.RotateX(Math.PI / 8);
var art4 = CreateArtifact(new Color(1.0, 1.0, 0.0));
art4.Transform =
Transform.Scale(0.3, 0.3, 0.3) *
Transform.RotateZ(Math.PI / 5) *
Transform.RotateX(Math.PI / 6);
var art5 = CreateArtifact(new Color(0.0, 1.0, 1.0));
art5.Transform =
Transform.Scale(0.2, 0.2, 0.2) *
Transform.RotateZ(Math.PI / 3) *
Transform.RotateY(Math.PI / 5);
var art6 = CreateArtifact(new Color(1.0, 0.0, 1.0));
art6.Transform =
Transform.Scale(0.14, 0.14, 0.14) *
Transform.RotateZ(Math.PI / 5) *
Transform.RotateX(Math.PI / 3);
world.Objects.Add(art1);
world.Objects.Add(art2);
world.Objects.Add(art3);
world.Objects.Add(art4);
world.Objects.Add(art5);
world.Objects.Add(art6);
var l1 = new PointLight(
Vector4.CreatePosition(5, 10, 10),
new Color(0.7, 0.7, 0.7));
var l2 = new PointLight(
Vector4.CreatePosition(-3, 10, 10),
new Color(0.7, 0.7, 0.7));
world.Lights.Add(l1);
world.Lights.Add(l2);
var camera = new Camera(width, height, Math.PI / 4.5)
{
Transform = Transform.View(
Vector4.CreatePosition(1, 2.5, -5),
Vector4.CreatePosition(0, 0.0, 0),
Vector4.CreateDirection(0, 1, 0)),
ProgressMonitorFactory =
(_rows, _cols) => new DefaultProgressMonitor(),
};
return(Tuple.Create(world, camera));
}
public static Tuple <World, Camera> Example13(int width, int height)
{
var world = new World();
var yellow = new Material
{
Color = new Color(0.8, 0.8, 0.05),
};
var col1 = new Material
{
Color = new Color(0.2, 0.4, 0.65),
};
var col2 = new Material
{
Color = new Color(0.1, 0.45, 0.55),
};
var cyl1 = new Cylinder()
{
Minimum = -1,
Maximum = 1,
IsClosed = true,
Transform =
Transform.Scale(0.5, 1, 0.5),
Material = yellow,
};
var cyl2 = new Cylinder()
{
Minimum = -1,
Maximum = 1,
IsClosed = true,
Transform =
Transform.RotateZ(Math.PI / 2) *
Transform.Scale(0.5, 1, 0.5),
Material = yellow,
};
var cyl3 = new Cylinder()
{
Minimum = -1,
Maximum = 1,
IsClosed = true,
Transform =
Transform.RotateX(Math.PI / 2) *
Transform.Scale(0.5, 1, 0.5),
Material = yellow,
};
var union1 = new Csg(Operation.Union, cyl1, cyl2);
var union2 = new Csg(Operation.Union, union1, cyl3)
{
Transform =
Transform.Scale(1.2, 1.2, 1.2),
};
var sphere1 = new Sphere()
{
// Transform = Transform.Scale(Math.Sqrt(2), Math.Sqrt(2), Math.Sqrt(2)),
Transform = Transform.Scale(1.4, 1.4, 1.4),
Material = col1,
};
var cube1 = new Cube()
{
Material = col2,
};
var intersec1 = new Csg(Operation.Intersect, cube1, sphere1);
var diff1 = new Csg(Operation.Difference, intersec1, union2);
world.Objects.Add(diff1);
var light = new PointLight(
Vector4.CreatePosition(10, 10, -10),
Color.White);
world.Lights.Add(light);
var camera = new Camera(width, height, Math.PI / 4.8)
{
Transform = Transform.View(
Vector4.CreatePosition(3.5, 3.5, -5),
Vector4.CreatePosition(0, 0.0, 0),
Vector4.CreateDirection(0, 1, 0)),
ProgressMonitorFactory =
(_rows, _cols) => new DefaultProgressMonitor(),
};
return(Tuple.Create(world, camera));
}
public static Tuple <World, Camera> Example12(int width, int height)
{
var world = new World();
var gray1 = new Color(0.12, 0.12, 0.12);
var gray2 = new Color(0.3, 0.3, 0.3);
var stripes1 = new StripePattern(gray1, gray2)
{
Transform = Transform.RotateY(-Math.PI / 4),
};
var stripes2 = new StripePattern(gray1, gray2)
{
Transform = Transform.RotateY(Math.PI / 4),
};
var blended = new BlendedPattern(stripes1, stripes2)
{
Transform = Transform.Scale(0.5, 0.5, 0.5),
};
var plane = new Plane()
{
Material = new Material()
{
Reflective = 0.1,
Specular = 0,
Ambient = 0.17,
Diffuse = 0.8,
Pattern = blended,
},
};
world.Objects.Add(plane);
var gradTransform =
Transform.Translate(0, 1, 0) *
Transform.RotateZ(Math.PI / 2) *
Transform.Scale(2, 1, 1);
var grad1 = new Material
{
Reflective = 0.2,
Ambient = 0.21,
Diffuse = 0.81,
Pattern = new GradientPattern(
new Color(0.13, 0.58, 0.69),
new Color(0.43, 0.84, 0.93))
{
Transform = gradTransform,
}
};
var grad2 = new Material
{
Reflective = 0.2,
Ambient = 0.21,
Diffuse = 0.81,
Pattern = new GradientPattern(
new Color(0.74, 0.76, 0.78),
new Color(0.17, 0.24, 0.31))
{
Transform = gradTransform,
}
};
var grad3 = new Material
{
Reflective = 0.2,
Ambient = 0.21,
Diffuse = 0.81,
Pattern = new GradientPattern(
new Color(0.80, 0.17, 0.37),
new Color(0.46, 0.23, 0.53))
{
Transform = gradTransform,
}
};
var grad4 = new Material
{
Reflective = 0.2,
Ambient = 0.21,
Diffuse = 0.81,
Pattern = new GradientPattern(
new Color(0.0, 0.2, 0.16),
new Color(0.0, 0.31, 0.57))
{
Transform = gradTransform,
}
};
var grads = new[]
{
grad2,
grad1,
grad3,
grad2,
grad4,
grad2,
grad3,
grad1,
grad2,
grad4,
grad3,
grad4,
grad3,
grad1,
grad2,
grad1,
};
const int nx = 32;
// const int nz = 8;
var stridex = 20.0 / nx;
// var stridez = 20.0 / nz;
for (var i = 0; i < nx; i++)
{
var sx = 0.1 + Rng.NextDouble() * 0.1;
var sy = (0.2 + 1.5 * Rng.NextDouble()) * (1 + sx);
var sz = sx;
var dx = -10.0 + i * stridex;
var grad = grads[i % grads.Length];
var c = new Cube()
{
Material = grad,
Transform =
Transform.Translate(dx, sy, 0) *
Transform.Scale(sx, sy, sz),
};
world.Objects.Add(c);
}
for (var i = 0; i < nx; i++)
{
var sx = 0.2 + Rng.NextDouble() * 0.1;
var sy = (0.2 + 1.0 * Rng.NextDouble()) * (1 + sx);
var sz = sx;
var dx = -9.3 + i * stridex;
var dz = 1.7;
var grad = grads[(i + 3) % grads.Length];
var c = new Cube()
{
Material = grad,
Transform =
Transform.Translate(dx, sy, dz) *
Transform.Scale(sx, sy, sz),
};
world.Objects.Add(c);
}
for (var i = 0; i < nx; i++)
{
var sx = 0.15 + Rng.NextDouble() * 0.1;
var sy = (0.2 + 0.5 * Rng.NextDouble()) * (1 + sx);
var sz = sx;
var dx = -9.3 + i * stridex;
var dz = 2.5;
var grad = grads[(i + 3) % grads.Length];
var c = new Cube()
{
Material = grad,
Transform =
Transform.Translate(dx, sy, dz) *
Transform.Scale(sx, sy, sz),
};
world.Objects.Add(c);
}
var l1 = new PointLight(
Vector4.CreatePosition(-10, 10, -10),
new Color(0.6, 0.6, 0.6));
world.Lights.Add(l1);
var l2 = new PointLight(
Vector4.CreatePosition(10, 10, -10),
new Color(0.6, 0.6, 0.6));
world.Lights.Add(l2);
var camera = new Camera(width, height, Math.PI / 2)
{
Transform = Transform.View(
Vector4.CreatePosition(0.0, 3.2, -4),
Vector4.CreatePosition(0, 0.5, 0),
Vector4.CreateDirection(0, 1, 0)),
ProgressMonitorFactory =
(_rows, _cols) => new DefaultProgressMonitor(),
};
return(Tuple.Create(world, camera));
}
public static World Example3()
{
var world = new World();
var ringPattern1 = new RingPattern(
new Color(0.4, 0.4, 0.4),
new Color(0.7, 0.7, 0.7))
{
Transform =
Transform.Scale(4, 4, 4),
};
var stripePattern1 = new StripePattern(
new Color(0.2, 0.2, 0.2),
new Color(0.5, 0.5, 1.0))
{
Transform =
Transform.Scale(0.1, 0.1, 0.1),
};
var checkers = new CheckersPattern(
Color.White,
Color.Black)
{
Transform =
Transform.Scale(1, 1, 1),
};
var nestedPattern = new NestedPattern(
checkers,
ringPattern1,
stripePattern1);
var pertubedPattern = new PertubedPattern(
new SolidPattern(Color.Black),
new SolidPattern(new Color(0.1, 0.2, 0.3)))
{
Transform = Transform.Scale(5.5, 5.5, 5.5),
};
var floor = new Plane
{
Material = new Material
{
Pattern = pertubedPattern,
Specular = 0,
},
};
world.Objects.Add(floor);
var gradientTransform =
Transform.Translate(1, 0, 0) *
Transform.Scale(2, 1, 1);
var sphere = new Sphere
{
Transform =
Transform.Translate(0, 1, 0),
Material = new Material
{
Pattern = new GradientPattern(
new Color(1.0, 0.0, 0.0),
new Color(0.0, 0.0, 1.0))
{
Transform = gradientTransform,
},
},
};
world.Objects.Add(sphere);
var gradients = new[]
{
new GradientPattern(
new Color(1.0, 0.0, 0.0),
new Color(0.0, 0.0, 1.0))
{
Transform = gradientTransform,
},
new GradientPattern(
new Color(1.0, 0.0, 0.0),
new Color(0.0, 1.0, 0.0))
{
Transform = gradientTransform,
},
new GradientPattern(
new Color(0.0, 1.0, 0.0),
new Color(0.0, 0.0, 1.0))
{
Transform = gradientTransform,
},
new GradientPattern(
new Color(0.5, 0.5, 0.0),
new Color(0.0, 0.5, 0.5))
{
Transform = gradientTransform,
},
new GradientPattern(
new Color(0.5, 0.0, 0.5),
new Color(0.0, 1.0, 0.0))
{
Transform = gradientTransform,
},
};
const int n = 1024;
var arc = 2 * Math.PI / n;
for (var i = 0; i < n; i++)
{
const double r = 0.15;
var gi = i % gradients.Length;
var ni = (double)i / n;
const double scatter = 15;
var q = scatter * Rng.NextDouble();
var s = new Sphere
{
Transform =
Transform.RotateY(i * arc) *
Transform.Translate(0, r, 2 - r + q) *
Transform.Scale(r, r, r),
Material = new Material
{
Pattern = gradients[gi],
},
};
world.Objects.Add(s);
}
var light = new PointLight(
Vector4.CreatePosition(-10, 10, -10),
Color.White);
world.Lights.Add(light);
return(world);
}
public static Tuple <World, Camera> Example10(int width, int height)
{
var world = new World();
var floor = new Plane
{
Material = new Material
{
Specular = 0,
Ambient = 0.1,
Color = new Color(0.05, 0.4, 0.2),
},
};
world.Objects.Add(floor);
var cone = new Cone()
{
Material = new Material()
{
Color = new Color(0.8, 0.2, 0.2),
Specular = 0,
},
Minimum = -1,
Maximum = 0,
IsClosed = true,
Transform =
Transform.RotateX(Math.PI / 2) *
Transform.Translate(0, 1, 0),
};
var cyl = new Cylinder
{
Material = new Material
{
Color = new Color(0.8, 0.2, 0.2),
Specular = 0,
},
Minimum = 0,
Maximum = 1,
IsClosed = true,
};
world.Objects.Add(cone);
var light = new PointLight(Vector4.CreatePosition(-2, 2, -5), Color.White);
world.Lights.Add(light);
var camera = new Camera(width, height, Math.PI / 3)
{
Transform = Transform.View(
Vector4.CreatePosition(0, 3, -3),
Vector4.CreatePosition(0, 0.5, 0),
Vector4.CreateDirection(0, 1, 0)),
ProgressMonitorFactory =
(_rows, _cols) => new DefaultProgressMonitor(),
};
return(Tuple.Create(world, camera));
}
public override BoundingBox GetBounds() =>
new BoundingBox(
Vector4.CreatePosition(-1, -1, -1),
Vector4.CreatePosition(1, 1, 1));
public Scene Build(int width, int height)
{
var camera = new Camera(width, height, 1.152)
{
Transform = Transform.View(
Vector4.CreatePosition(-2.6, 1.5, -3.9),
Vector4.CreatePosition(-0.6, 1, -0.8),
Vector4.CreateDirection(0, 1, 0)),
};
var light = new PointLight(
Vector4.CreatePosition(-4.9, 4.9, -1),
Color.White);
var wallMaterial = new Material()
{
Pattern = new StripePattern(
new Color(0.45, 0.45, 0.45),
new Color(0.55, 0.55, 0.55))
{
Transform =
Matrix4x4.Identity
.Scale(0.25, 0.25, 0.25)
.RotateY(1.5708),
},
Ambient = 0,
Diffuse = 0.4,
Specular = 0,
Reflective = 0.3,
};
var floor = new Plane()
{
Transform =
Matrix4x4.Identity
.RotateY(0.31415),
Material = new Material()
{
Pattern = new CheckersPattern(
new Color(0.35, 0.35, 0.35),
new Color(0.65, 0.65, 0.65))
{
},
Specular = 0,
Reflective = 0.4,
},
};
var ceiling = new Plane()
{
Transform =
Transform.Translate(0, 5, 0),
Material = new Material()
{
Color = new Color(0.8, 0.8, 0.8),
Ambient = 0.3,
Specular = 0,
},
};
var westWall = new Plane()
{
Transform =
Matrix4x4.Identity
.RotateY(1.5708)
.RotateZ(1.5708)
.Translate(-5, 0, 0),
Material = wallMaterial,
};
var eastWall = new Plane()
{
Transform =
Matrix4x4.Identity
.RotateY(1.5708)
.RotateZ(1.5708)
.Translate(5, 0, 0),
Material = wallMaterial,
};
var northWall = new Plane()
{
Transform =
Matrix4x4.Identity
.RotateX(1.5708)
.Translate(0, 0, 5),
Material = wallMaterial,
};
var southWall = new Plane()
{
Transform =
Matrix4x4.Identity
.RotateX(1.5708)
.Translate(0, 0, -5),
Material = wallMaterial,
};
var s1 = new Sphere()
{
Transform =
Matrix4x4.Identity
.Scale(0.4, 0.4, 0.4)
.Translate(4.6, 0.4, 1),
Material = new Material()
{
Color = new Color(0.8, 0.5, 0.3),
Shininess = 50,
},
};
var s2 = new Sphere()
{
Transform =
Matrix4x4.Identity
.Scale(0.3, 0.3, 0.3)
.Translate(4.7, 0.3, 0.4),
Material = new Material()
{
Color = new Color(0.9, 0.4, 0.5),
Shininess = 50,
},
};
var s3 = new Sphere()
{
Transform =
Matrix4x4.Identity
.Scale(0.5, 0.5, 0.5)
.Translate(-1, 0.5, 4.5),
Material = new Material()
{
Color = new Color(0.4, 0.9, 0.6),
Shininess = 50,
},
};
var s4 = new Sphere()
{
Transform =
Matrix4x4.Identity
.Scale(0.3, 0.3, 0.3)
.Translate(-1.7, 0.3, 4.7),
Material = new Material()
{
Color = new Color(0.4, 0.6, 0.9),
Shininess = 50,
},
};
var redSphere = new Sphere()
{
Transform =
Matrix4x4.Identity
.Translate(-0.6, 1, 0.6),
Material = new Material()
{
Color = new Color(1, 0.3, 0.2),
Specular = 0.4,
Shininess = 5,
},
};
var blueGlassSphere = new Sphere()
{
Transform =
Matrix4x4.Identity
.Scale(0.7, 0.7, 0.7)
.Translate(0.6, 0.7, -0.6),
Material = new Material()
{
Color = new Color(0, 0, 0.2),
Ambient = 0,
Diffuse = 0.4,
Specular = 0.9,
Shininess = 300,
Reflective = 0.9,
Transparency = 0.9,
RefractiveIndex = 1.5,
},
};
var greenGlassSphere = new Sphere()
{
Transform =
Matrix4x4.Identity
.Scale(0.5, 0.5, 0.5)
.Translate(-0.7, 0.5, -0.8),
Material = new Material()
{
Color = new Color(0, 0.2, 0),
Ambient = 0,
Diffuse = 0.4,
Specular = 0.9,
Shininess = 300,
Reflective = 0.9,
Transparency = 0.9,
RefractiveIndex = 1.5,
},
};
var world = new World();
world.Objects = new Shape[]
{
floor,
ceiling,
westWall,
eastWall,
northWall,
southWall,
s1,
s2,
s3,
s4,
redSphere,
blueGlassSphere,
greenGlassSphere,
};
world.Lights = new[] { light };
return(new Scene(world, camera));
}
public static World Example4()
{
var world = new World();
var plane = new Plane
{
Material = new Material
{
Specular = 0,
Pattern = new CheckersPattern(Color.White, Color.Black)
{
Transform = Transform.Scale(2, 2, 2),
},
},
};
world.Objects.Add(plane);
var sphere = new Sphere
{
Transform =
Transform.Translate(0, 1, 0),
Material = new Material
{
Color = new Color(0.1, 0.4, 0.5),
Reflective = 0.6,
Specular = 0.95,
Shininess = 300,
},
};
world.Objects.Add(sphere);
const int n = 16;
var arc = 2 * Math.PI / n;
for (var i = 0; i < n; i++)
{
var s = new Sphere
{
Transform =
Transform.RotateY(i * arc) *
Transform.Translate(0, 0.2, 1.5) *
Transform.Scale(0.2, 0.2, 0.2),
Material = new Material
{
Color = new Color(0.57, 0.1, 0.2),
Reflective = 0.4,
},
};
world.Objects.Add(s);
}
var light = new PointLight(Vector4.CreatePosition(-10, 10, -10), Color.White);
world.Lights.Add(light);
return(world);
}
public static World Example5()
{
var world = new World();
var w0 = new Plane
{
Material = new Material
{
Specular = 0,
Pattern = new CheckersPattern(Color.White, Color.Black)
{
Transform = Transform.Scale(0.5, 0.5, 0.5),
},
},
};
world.Objects.Add(w0);
var w1 = new Plane
{
Material = w0.Material,
Transform =
Transform.Translate(0, 0, 6) *
Transform.RotateX(-Math.PI / 2),
};
world.Objects.Add(w1);
var w2 = new Plane
{
Material = w0.Material,
Transform =
Transform.Translate(-6, 0, 0) *
Transform.RotateZ(-Math.PI / 2),
};
world.Objects.Add(w2);
var w3 = new Plane
{
Material = w0.Material,
Transform =
Transform.Translate(6, 0, 0) *
Transform.RotateZ(Math.PI / 2),
};
world.Objects.Add(w3);
var w4 = new Plane
{
Material = w0.Material,
Transform =
Transform.Translate(0, 0, -6) *
Transform.RotateX(Math.PI / 2),
};
world.Objects.Add(w4);
var w5 = new Plane
{
Material = w0.Material,
Transform =
Transform.Translate(0, 6, 0) *
Transform.RotateZ(-Math.PI),
};
world.Objects.Add(w5);
var sphere = new Sphere
{
Transform =
Transform.Translate(0, 1, 0),
Material = new Material
{
// Color = new Color(0.1, 0.2, 0.3),
Ambient = 0.0,
Diffuse = 0.0,
Transparency = 0.3,
// RefractiveIndex = 1.000029, // air
// RefractiveIndex = 1.333, // water
RefractiveIndex = 1.52, // glass
Reflective = 0.9,
Specular = 0.9,
Shininess = 300,
},
};
world.Objects.Add(sphere);
const int n = 8;
var arc = 2 * Math.PI / n;
for (var i = 0; i < n; i++)
{
var s = new Sphere
{
Transform =
Transform.RotateY(i * arc) *
Transform.Translate(0, 0.5, 1.75) *
Transform.Scale(0.4, 0.4, 0.4),
Material = new Material
{
Color = new Color(0.1, 0.6, 0.7),
Reflective = 0.1,
Ambient = 0.05,
Diffuse = 0.8,
Specular = 1.0,
Shininess = 300,
},
};
world.Objects.Add(s);
}
var l1 = new PointLight(Vector4.CreatePosition(-1, 4, 1), Color.White);
world.Lights.Add(l1);
return(world);
}
public static Tuple <World, Camera> Example6(int width, int height)
{
var world = new World();
var floor = new Plane
{
Material = new Material
{
// Color = new Color(0.05, 0.35, 0.1),
Pattern = new CheckersPattern(
new Color(0.1, 0.55, 0.2),
new Color(0.1, 0.65, 0.3))
{
Transform =
Transform.Scale(0.6, 0.6, 0.6),
},
Specular = 0,
},
};
world.Objects.Add(floor);
var c0 = new Cube
{
Transform =
Transform.Translate(0, 0.7, 0) *
Transform.Scale(0.7, 0.7001, 0.7),
Material = new Material
{
Color = new Color(0.2, 0.5, 0.85),
Specular = 1.0,
Shininess = 300,
Reflective = 1.0,
Ambient = 0.1,
Diffuse = 0.2,
Transparency = 0.0,
RefractiveIndex = 1.00052,
},
};
world.Objects.Add(c0);
var c1 = new Cube
{
Transform =
Transform.Translate(0.7, 0.2, -1.4) *
Transform.Scale(0.2, 0.2, 0.2) *
Transform.RotateY(Math.PI / 5),
Material = new Material
{
Pattern = new StripePattern(
new Color(0.1, 0.3, 0.4),
new Color(0.1, 0.6, 0.8))
{
Transform =
Transform.Scale(0.25, 1, 1) *
Transform.RotateZ(Math.PI / 3),
},
},
};
world.Objects.Add(c1);
var c2 = new Cube
{
Material = new Material
{
Color = new Color(0.8, 0.2, 0.8),
},
Transform =
Transform.Translate(-0.1, 0.1, -1.5) *
Transform.Scale(0.1, 0.1, 0.1) *
Transform.RotateY(-Math.PI / 4.2),
};
world.Objects.Add(c2);
var c3 = new Cube
{
Material = new Material
{
Pattern = new StripePattern(
new Color(0.2, 0.9, 0.8),
new Color(0.2, 0.4, 0.4))
{
Transform =
Transform.Scale(0.23, 1, 1) *
Transform.RotateZ(-Math.PI * 0.7),
},
},
Transform =
Transform.Translate(-0.2, 0.4, 2.0) *
Transform.Scale(0.4, 0.4, 0.4) *
Transform.RotateY(Math.PI / 4.6),
};
world.Objects.Add(c3);
var light = new PointLight(
Vector4.CreatePosition(-10, 8, 1),
Color.White);
world.Lights.Add(light);
var camera = new Camera(width, height, Math.PI / 3.3)
{
Transform = Transform.View(
Vector4.CreatePosition(-3.25, 2.2, -4.2),
Vector4.CreatePosition(0, 0.3, 0),
Vector4.CreateDirection(0, 1, 0)),
ProgressMonitorFactory =
(_rows, _cols) => new DefaultProgressMonitor(),
};
return(Tuple.Create(world, camera));
}
public Scene Build(int width, int height)
{
var camera = new Camera(width, height, 0.7854)
{
Transform = Transform.View(
Vector4.CreatePosition(-3, 1, 2.5),
Vector4.CreatePosition(0, 0.5, 0),
Vector4.CreateDirection(0, 1, 0)),
};
var light = new AreaLight(
Vector4.CreatePosition(-1, 2, 4),
Vector4.CreateDirection(2, 0, 0),
10,
Vector4.CreateDirection(0, 2, 0),
10,
new Color(1.5, 1.5, 1.5))
{
Jitter = new RandomSequence(),
};
var cube = new Cube()
{
Material = new Material()
{
Color = new Color(1.5, 1.5, 1.5),
Ambient = 1,
Diffuse = 0,
Specular = 0,
},
Transform =
Matrix4x4.Identity
.Scale(1, 1, 0.01)
.Translate(0, 3, 4),
Shadow = false,
};
var plane = new Plane()
{
Material = new Material()
{
Color = new Color(1, 1, 1),
Ambient = 0.025,
Diffuse = 0.67,
Specular = 0,
},
};
var sphere1 = new Sphere()
{
Transform =
Matrix4x4.Identity
.Scale(0.5, 0.5, 0.5)
.Translate(0.5, 0.5, 0),
Material = new Material()
{
Color = new Color(1, 0, 0),
Ambient = 0.1,
Specular = 0,
Diffuse = 0.6,
Reflective = 0.3,
},
};
var sphere2 = new Sphere()
{
Transform =
Matrix4x4.Identity
.Scale(0.33, 0.33, 0.33)
.Translate(-0.25, 0.33, 0),
Material = new Material()
{
Color = new Color(0.5, 0.5, 1),
Ambient = 0.1,
Specular = 0,
Diffuse = 0.6,
Reflective = 0.3,
},
};
var world = new World()
{
Objects = new Shape[]
{
cube,
plane,
sphere1,
sphere2
},
Lights = new ILight[]
{
light,
},
};
return(new Scene(world, camera));
}
public static Tuple <World, Camera> Create(int width, int height)
{
// var pat1 = new TestPattern1()
// {
// Transform = Matrix4x4.Identity *
// Transform.Scale(2.1, 1, 1.7) *
// Transform.RotateY(Math.PI / 4),
// };
var floor = new Plane()
{
Material = new Material()
{
Color = new Color(0.5, 0.5, 0.5),
Specular = 0,
Diffuse = 0.8,
Ambient = 0.2,
},
};
var s1 = new Sphere()
{
Material = new Material()
{
Color = new Color(0.1, 0.4, 0.72),
Reflective = 0.6,
Diffuse = 0.3,
Specular = 0.95,
Shininess = 300,
},
Transform = Matrix4x4.Identity *
Transform.Scale(0.5, 0.5, 0.5) *
Transform.Translate(0, 1, 0),
};
var s2 = new Sphere()
{
Material = new Material()
{
Color = new Color(0.9, 0.9, 0.1),
Reflective = 0.4,
Diffuse = 0.4,
Specular = 0.96,
Shininess = 300,
},
Transform = Matrix4x4.Identity *
Transform.Scale(0.3, 0.3, 0.3) *
Transform.Translate(0, 1, -2.5),
};
var s3 = new Sphere()
{
Material = new Material()
{
Color = new Color(0.72, 0.11, 0.32),
},
Transform = Matrix4x4.Identity *
Transform.Scale(0.5, 0.5, 0.5) *
Transform.Translate(0, 1, -4),
};
var l1 = new PointLight(
Vector4.CreatePosition(-100, 40, -20),
new Color(1, 1, 1));
var world = new World();
world.Objects.Add(floor);
world.Objects.Add(s1);
world.Objects.Add(s2);
world.Objects.Add(s3);
world.Lights.Add(l1);
var cam = new Camera(width, height, Math.PI / 4)
{
Transform = Transform.View(
Vector4.CreatePosition(0, 2, -3),
Vector4.CreatePosition(0, 0, 0),
Vector4.CreateDirection(0, 1, 0)),
ProgressMonitorFactory =
(_rows, _cols) => new DefaultProgressMonitor(),
};
return(Tuple.Create(world, cam));
}
