public static Hitable_List Cornell_box() { Hitable_List objects = new Hitable_List(); var red = new Lambertian(new Solid_Color(.65f, .05f, .05f)); var white = new Lambertian(new Solid_Color(.73f, .73f, .73f)); var green = new Lambertian(new Solid_Color(.12f, .45f, .15f)); var light = new Diffuse_light(new Solid_Color(15, 15, 15)); objects.Add(new Flip_face(new YZ_rect(0, 555, 0, 555, 555, green))); objects.Add(new YZ_rect(0, 555, 0, 555, 0, red)); objects.Add(new XZ_rect(213, 343, 227, 332, 554, light)); objects.Add(new Flip_face(new XZ_rect(0, 555, 0, 555, 0, white))); objects.Add(new XZ_rect(0, 555, 0, 555, 555, white)); objects.Add(new Flip_face(new XY_rect(0, 555, 0, 555, 555, white))); HitTable box1 = new Box(new Vector3(0, 0, 0), new Vector3(165, 330, 165), white); box1 = new Rotate_y(box1, 15); box1 = new Translate(box1, new Vector3(265, 0, 295)); objects.Add(box1); HitTable box2 = new Box(new Vector3(0, 0, 0), new Vector3(165, 165, 165), white); box2 = new Rotate_y(box2, -18); box2 = new Translate(box2, new Vector3(130, 0, 65)); objects.Add(box2); return(objects); }
static void Main(string[] args) { int image_width = 384; int image_height = image_width; float aspect_ratio = (float)image_width / image_height; int samples_per_pixel = 100; int max_depth = 50; string filePath = "image.ppm"; using (var file = new StreamWriter(filePath)) { file.WriteLine($"P3\n{image_width} {image_height}\n255"); float viewport_height = 2.0f; float viewport_width = aspect_ratio * viewport_height; float focal_length = 1.0f; var origin = Vector3.Zero; var horizontal = new Vector3(viewport_width, 0, 0); var vertical = new Vector3(0, viewport_height, 0); var lower_left_corner = origin - horizontal / 2 - vertical / 2 - new Vector3(0, 0, focal_length); Hitable_List world = Cornell_box(); Vector3 lookfrom = new Vector3(278, 278, -800); Vector3 lookat = new Vector3(278, 278, 0); Vector3 vup = new Vector3(0, 1, 0); float dist_to_focus = 10.0f; float aperture = 0.0f; float vfov = 40.0f; Vector3 background = new Vector3(0.0f, 0.0f, 0.0f); Camera cam = new Camera(lookfrom, lookat, vup, vfov, aspect_ratio, aperture, dist_to_focus, 0.0f, 1.0f); for (int j = image_height - 1; j >= 0; --j) { Console.WriteLine($"\rScanlines remaining: {j}"); for (int i = 0; i < image_width; ++i) { Vector3 pixel_color = Vector3.Zero; for (int s = 0; s < samples_per_pixel; ++s) { float u = (float)(i + Helpers.random.NextDouble()) / (image_width - 1); float v = (float)(j + Helpers.random.NextDouble()) / (image_height - 1); Ray r = cam.Get_Ray(u, v); pixel_color += Ray_color(r, background, world, max_depth); } Write_color(file, pixel_color, samples_per_pixel); } } Console.WriteLine("Done."); } }
public Box() { this.sides = new Hitable_List(); }
public BVH_Node(Hitable_List list, float time0, float time1) : this(list.Objects, 0, (uint)list.Objects.Count, time0, time1) { }