public Sphere(Vector3 center, float radius, ColorT color, double spec, double refl, double refr = 0)
{
Center = center;
Radius = radius;
Color = color;
//Зеркальность
Specular = spec;
//Отражение
Reflective = refl;
//Прозрачность
Refraction = refr;
}
private void render()
{
ViewPort Port = new ViewPort(1, 1, 1, Cw, Ch);
Camera camera = new Camera(new Vector3(-1.0f, 0.0f, -11.0f));
InitScene();
//Отрисовка
for (int x = -Cw / 2; x < Cw / 2; ++x)
{
for (int y = -Ch / 2 + 1; y < Ch / 2; ++y)
{
Vector3 D = camera.Rotation * Port.PictureToViewPort(x, y);
ColorT c = TraceRay(camera.Position, D, 1, float.MaxValue, 3);
PutPixel(x, y, c.Trunc());
}
}
pictureBox1.Image = bmp;
}
public ColorT TraceRay(Vector3 O, Vector3 D, float t_min, float t_max, int Depth)
{
var ResultIntersect = ClosestIntersection(O, D, t_min, t_max);
if (ResultIntersect.Item1 == null)
{
return(background);
}
Vector3 P = O + D * ResultIntersect.Item2;
Vector3 N = P - ResultIntersect.Item1.Center;
N = N / (float)N.Length();
ColorT local_color = ResultIntersect.Item1.Color * ComputeLight(P, N, -D, ResultIntersect.Item1.Specular);
double r = ResultIntersect.Item1.Reflective;
if (Depth < 0 || r < 0)
{
return(local_color);
}
Vector3 R = ReflectRay(-D, N);
ColorT reflected_color = TraceRay(P, R, t_min, t_max, Depth - 1);
ColorT refracted_color = new ColorT();
if (ResultIntersect.Item1.Refraction != 0)
{
refracted_color = TraceRay(P, D, 0.1f, t_max, 0);
}
return(local_color * (1 - r) + reflected_color * r + refracted_color * ResultIntersect.Item1.Refraction);
}
