Unused line of code, "The Next Week" main.cc #317
Description
In the main.cc file,
You have:
camera cam(lookfrom, lookat, vec3(0,1,0), vfov, float(nx)/float(ny), aperture, dist_to_focus, 0.0, 1.0);
for (int j = ny-1; j >= 0; j--) {
for (int i = 0; i < nx; i++) {
vec3 col(0, 0, 0);
for (int s=0; s < ns; s++) {
float u = float(i+random_double())/ float(nx);
float v = float(j+random_double())/ float(ny);
ray r = cam.get_ray(u, v);
vec3 p = r.point_at_parameter(2.0);
col += color(r, world,0);
}
col /= float(ns);
col = vec3( sqrt(col[0]), sqrt(col[1]), sqrt(col[2]) );
int ir = int(255.99*col[0]);
int ig = int(255.99*col[1]);
int ib = int(255.99*col[2]);
std::cout << ir << " " << ig << " " << ib << "\n";
}
}
}
Is vec3 p = r.point_at_parameter(2.0); necessary for anything?