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));
}
protected override Canvas Render(CameraRenderOptions options)
{
// Patterns
var checkerPattern = new CheckerPattern(
new StripePattern(
Colors.LightGray,
Colors.Gray,
Matrix4x4.CreateScaling(0.25, 0.25, 0.25).RotateY(-Math.PI / 8)),
new GradientPattern(new Color(1, 0.75, 0.75), new Color(1, 0.5, 0.5)),
Matrix4x4.CreateScaling(0.4, 0.4, 0.4));
var blendedPattern = new BlendedPattern(
new StripePattern(new Color(0.9, 1, 0.9), new Color(0, 1, 0), Matrix4x4.CreateRotationY(Math.PI / 2)),
new StripePattern(new Color(0.9, 1, 0.9), new Color(0, 1, 0)),
0.5);
var stripePattern = new StripePattern(
new GradientPattern(new Color(0.8, 0.8, 1), Colors.Blue),
new GradientPattern(Colors.Blue, new Color(0.8, 0.8, 1)),
Matrix4x4.CreateScaling(0.25, 0.25, 0.25)
.RotateZ(-Math.PI / 4)
.RotateY(-Math.PI / 6)
.Translate(0.4, 0, 0));
var gradientPattern = new RadialGradientPattern(
Colors.Green,
Colors.Yellow,
Matrix4x4.CreateScaling(0.25, 0.25, 0.25).RotateX(-Math.PI / 2));
var ringPattern = new RingPattern(
Colors.Red,
Colors.White,
Matrix4x4.CreateScaling(0.15, 0.15, 0.15).RotateX(-Math.PI / 2));
// Shapes
var floor = new Plane(
"Floor",
Matrix4x4.CreateRotationY(Math.PI / 4),
new Material(pattern: blendedPattern, specular: 0));
var backWall = new Plane(
"BackWall",
Matrix4x4.CreateRotationX(Math.PI / 2).Translate(0, 0, 5),
new Material(pattern: checkerPattern));
var left = new Sphere(
"Left",
Matrix4x4.CreateScaling(0.33, 0.33, 0.33).Translate(-2, 0.33, -0.75),
new Material(pattern: ringPattern, diffuse: 0.7, specular: 0.3));
var middle = new Sphere(
"Middle",
Matrix4x4.CreateTranslation(-0.5, 1, 0.5),
new Material(pattern: stripePattern, diffuse: 0.7, specular: 0.3));
var right = new Sphere(
"Right",
Matrix4x4.CreateScaling(0.5, 0.5, 0.5).Translate(1.5, 0.5, -0.5),
new Material(pattern: gradientPattern, diffuse: 0.7, specular: 0.3));
var light = new PointLight(new Point(-10, 10, -10), Colors.White);
var world = new World(light, floor, backWall, left, middle, right);
var cameraTransform = Matrix4x4.CreateLookAt(new Point(0, 1.5, -5), new Point(0, 1, 0), Vector.UnitY);
var camera = new Camera(CanvasWidth, CanvasHeight, Math.PI / 3, cameraTransform);
Canvas canvas = camera.Render(world, options);
return(canvas);
}
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));
}
