static void Main(string[] args)
{
const int width = 100;
const int height = 100;
var canvas = new Canvas(width, height);
var sphere = new Sphere();
var origin = Tuple.Point(0, 0, -5);
var red = new Color(255, 0, 0);
var scale = 0.01;
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
var ray = new Ray(origin,
Tuple.Vector(scale * (x - 0.5 * width),
scale * (y - 0.5 * height), 1));
if (sphere.Intersect(ray).Count > 0)
{
canvas.SetPixel(x, y, red);
}
}
}
PPMWriter.WriteToFile(canvas, "RayCast1.ppm");
}
static void Main(string[] args)
{
const int width = 100;
const int height = 100;
var canvas = new Canvas(width, height);
var sphere = new Sphere();
sphere.Material.Color = new Color(1, 0.2, 1);
var light = new PointLight(Tuple.Point(-10, 10, -10), new Color(1, 1, 1));
var origin = Tuple.Point(0, 0, -5);
var red = new Color(255, 0, 0);
var scale = 0.01;
for (int x = 0; x < width; x++)
{
System.Console.Write(".");
for (int y = 0; y < height; y++)
{
var ray = new Ray(origin,
Tuple.Vector(scale * (x - 0.5 * width),
scale * (y - 0.5 * height), 1));
ray.Direction.Normalize();
var intersections = sphere.Intersect(ray);
if (intersections.Count > 0)
{
var hit = intersections.Hit();
var hitObject = hit.Shape;
var point = ray.Position(hit.Distance);
var normal = hitObject.Normal(point);
var eye = -ray.Direction;
var color = LightUtil.Lighting(hitObject.Material, hitObject, light, point, eye, normal, false);
canvas.SetPixel(x, y, color);
}
}
}
PPMWriter.WriteToFile(canvas, "RayCast2.ppm");
}
static void Main(string[] args)
{
const int width = 1000;
const int height = 500;
var floor = new Plane()
{
Material = new Material()
{
Color = new Color(1, 0.9, 0.9),
Specular = 0
}
};
var middle = new Sphere()
{
Transform = Matrix4.Translation(-0.5, 1, 0.5),
Material = new Material
{
Color = new Color(0.1, 1, 0.5),
Diffuse = 0.7,
Specular = 0.3
}
};
var right = new Sphere()
{
Transform = Matrix4.Translation(1.5, 0.5, -0.5) * Matrix4.Scaling(0.5, 0.5, 0.5),
Material = new Material
{
Color = new Color(0.5, 1, 0.1),
Diffuse = 0.7,
Specular = 0.3
}
};
var left = new Sphere()
{
Transform = Matrix4.Translation(-1.5, 0.33, -0.75) * Matrix4.Scaling(0.33, 0.33, 0.33),
Material = new Material
{
Color = new Color(1, 0.8, 0.1),
Diffuse = 0.7,
Specular = 0.3
}
};
var world = new World
{
Light = new PointLight(Tuple.Point(-10, 10, -10), new Color(1, 1, 1)),
Shapes = { floor, middle, left, right }
};
var cam = new Camera(width, height, System.Math.PI / 3)
{
Transform = Matrix4.ViewTransform(
Tuple.Point(0, 1.5, -5),
Tuple.Point(0, 1, 0),
Tuple.Vector(0, 1, 0))
};
var image = Renderer.Render(cam, world, p => System.Console.Write($"\rRendering {100 * p:N2}"));
PPMWriter.WriteToFile(image, "RayCast4.ppm");
}
// 00:02:27.2397869 first run debug
// 00:01:16.8428786 release
// 00:01:13.2049173 debug parallel
// 00:00:47.4624021 release parallel
// 00:00:51.2508922 debug inner loop parallel
// 00:00:42.3488772 debug parallel some inversion buffered
// 00:00:09.0653539 debug parallel inversion buffered
// 00:00:06.4252125 release parallel inversion buffered
// 00:00:04.8961149 release parallel inversion buffered standalone
static void Main(string[] args)
{
const int width = 1000;
const int height = 500;
var floor = new Plane()
{
Material = new Material()
{
Pattern = new NoisePattern(
new SpiralPattern(new Color(1, 0.9, 0.9), new Color(0.5, 0.3, 0.3))
{
Transform = Matrix4.Translation(0, 0, 2)
}
),
Color = new Color(1, 0.9, 0.9),
Specular = 0
}
};
var middle = new Sphere()
{
Transform = Matrix4.Translation(-0.5, 1, 0.5),
Material = new Material
{
Pattern = new CheckerPattern(new Color(0.1, 1, 0.5), new Color(0.0, 0.5, 0.3))
{
Transform = Matrix4.Scaling(0.2, 0.2, 0.2)
},
Color = new Color(0.1, 1, 0.5),
Diffuse = 0.7,
Specular = 0.3
}
};
var right = new Sphere()
{
Transform = Matrix4.Translation(1.5, 0.5, -0.5) * Matrix4.Scaling(0.5, 0.5, 0.5),
Material = new Material
{
Pattern = new StripedPattern(new Color(0.5, 1, 0.1), new Color(0.25, 0.5, 0.03))
{
Transform = Matrix4.Scaling(0.1, 0.1, 0.1).RotateY(0.6)
},
Color = new Color(0.5, 1, 0.1),
Diffuse = 0.7,
Specular = 0.3
}
};
var left = new Sphere()
{
Transform = Matrix4.Translation(-1.5, 0.33, -0.75) * Matrix4.Scaling(0.33, 0.33, 0.33),
Material = new Material
{
Pattern = new GradientPattern(new Color(0, 0, 1), new Color(1, 0, 0))
{
Transform = Matrix4.Scaling(0.2, 0.2, 0.2).RotateY(-0.6)
},
Color = new Color(1, 0.8, 0.1),
Diffuse = 0.7,
Specular = 0.3
}
};
var world = new World
{
Light = new PointLight(Tuple.Point(-10, 10, -10), new Color(1, 1, 1)),
Shapes = { floor, middle, left, right }
};
var cam = new Camera(width, height, System.Math.PI / 3)
{
Transform = Matrix4.ViewTransform(
Tuple.Point(0, 1.5, -5),
Tuple.Point(0, 1, 0),
Tuple.Vector(0, 1, 0))
};
var stopwatch = new Stopwatch();
stopwatch.Start();
var image = Renderer.Render(cam, world, p => System.Console.Write($"\rRendering {100 * p:N2}"));
PPMWriter.WriteToFile(image, "RayCast6.ppm");
stopwatch.Stop();
System.Console.WriteLine($"Elapsed {stopwatch.Elapsed}");
}
static void Main(string[] args)
{
const int width = 1000;
const int height = 500;
var floor = new Sphere()
{
Transform = Matrix4.Scaling(10, 0.01, 10),
Material = new Material()
{
Color = new Color(1, 0.9, 0.9),
Specular = 0
}
};
var leftWall = new Sphere()
{
Transform = Matrix4.Translation(0, 0, 5)
* Matrix4.RotationY(-0.25 * Math.PI)
* Matrix4.RotationX(0.5 * Math.PI)
* Matrix4.Scaling(10, 0.01, 10),
Material = floor.Material
};
var rightWall = new Sphere()
{
Transform = Matrix4.Translation(0, 0, 5)
* Matrix4.RotationY(0.25 * Math.PI)
* Matrix4.RotationX(0.5 * Math.PI)
* Matrix4.Scaling(10, 0.01, 10),
Material = floor.Material
};
var middle = new Sphere()
{
Transform = Matrix4.Translation(-0.5, 1, 0.5),
Material = new Material
{
Color = new Color(0.1, 1, 0.5),
Diffuse = 0.7,
Specular = 0.3
}
};
var right = new Sphere()
{
Transform = Matrix4.Translation(1.5, 0.5, -0.5) * Matrix4.Scaling(0.5, 0.5, 0.5),
Material = new Material
{
Color = new Color(0.5, 1, 0.1),
Diffuse = 0.7,
Specular = 0.3
}
};
var left = new Sphere()
{
Transform = Matrix4.Translation(-1.5, 0.33, -0.75) * Matrix4.Scaling(0.33, 0.33, 0.33),
Material = new Material
{
Color = new Color(1, 0.8, 0.1),
Diffuse = 0.7,
Specular = 0.3
}
};
var world = new World
{
Light = new PointLight(Tuple.Point(-10, 10, -10), new Color(1, 1, 1)),
Shapes = { floor, leftWall, rightWall, middle, left, right }
};
var cam = new Camera(width, height, Math.PI / 3)
{
Transform = Matrix4.ViewTransform(
Tuple.Point(0, 1.5, -5),
Tuple.Point(0, 1, 0),
Tuple.Vector(0, 1, 0))
};
var image = Renderer.Render(cam, world);
PPMWriter.WriteToFile(image, "RayCast3.ppm");
}