void saveImage(std::string filename){
std::ofstream file;
file.open(filename);
file << "P3" << std::endl;
file << width_ << " " << height_ << std::endl;
file << "255" << std::endl;
Hitable *list[4];
//float R = cos(M_PI / 4);
list[0] = new Sphere(Vec3<float>(-1.5,0.0,-1.0), 0.5, new Lambertian(Vec3<float>(0.1,0.2,0.5)));
list[1] = new Sphere(Vec3<float>(1, -100.5, -1.0), 100, new Lambertian(Vec3<float>(0.1, 0.4, 0.3)));
list[2] = new Sphere(Vec3<float>(1.5, 0.0, -1.0), 0.5, new Metal(Vec3<float>(0.8, 0.6, 0.2),1.0));
//list[3] = new Sphere(Vec3<float>(0.0, 0.0, -1.0), 0.5, new Dieletric(1.5));
list[3] = new Box(Vec3<float>(0.0, -0.5, -1.5), Vec3<float>(0.5, 0.0, -1.0), new Dieletric(1.5));
//list[4] = new Sphere(Vec3<float>(0.0, 0.0, -1.0), -0.495, new Dieletric(1.5));
//list[4] = new Plane(Vec3<float>(-4.0, 5.0, -2.0), Vec3<float>(4.0, -1.0, -2.0), new Dieletric(1.5));
//list[4] = new Plane(Vec3<float>(0.0, 0.0, -4.0), Vec3<float>(0.0, 1.0, 1.0), new Dieletric(1.5));
//list[4] = new Sphere(Vec3<float>(-1.0, 0.0, -5.0), 3.5, new Lambertian(Vec3<float>(0.6, 0.4, 0.5)));
//list[5] = new Sphere(Vec3<float>(-1.0, 0.0, -1.0), 0.5, new Dieletric(10.5));
Hitable * world = new Hitable_list(list, 4);
//Hitable *world = random_scene();
Vec3<float> lookfrom(2.0, 0.0, 1.0), lookat(0.0, 0.0, -1.0);
float dist_to_focus = (lookfrom - lookat).length();
float aperture = 2.0;
Camera cam(lookfrom, lookat,Vec3<float>(0,1,0), 60, float(width_/height_));
int ns = 100;
for (int i = height_-1; i >= 0; i--){
for (int j = 0; j < width_; j++){
Vec3<float> col(0.0, 0.0, 0.0);
for (int s = 0; s < ns; s++)
{
float u = float(i + Rand()) / float(height_);
float v = float(j + Rand()) / float(width_);
Ray<float> r = cam.getRay(u, v);
Vec3<float> p = r.point_at_parameter(2.0);
col += color(r, world, 0);
}
float n = float(ns);
col /= n;
col = Vec3<float>(sqrt(col.x()), sqrt(col.y()), sqrt(col.z()));
int ir = int(255.99*col.x()), ig = int(255.99*col.y()), ib = int(255.99*col.z());
file << ir << " " << ig << " " << ib << endl;
}
}
file.close();
}
int main(int argc, char* argv[])
{
if (argc >= 2) {
g_maxdepth = atoi(argv[1]);
g_maxdepth = (g_maxdepth == 0 ? 50 : g_maxdepth);
}
if (argc >= 3) {
g_samplenum = atoi(argv[2]);
g_samplenum = (g_samplenum == 0 ? 10 : g_samplenum);
}
timer::init();
::glfwSetErrorCallback(errorCallback);
auto result = ::glfwInit();
if (!result) {
assert(false);
return 1;
}
::glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
::glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
auto window = ::glfwCreateWindow(
WIDTH,
HEIGHT,
TITLE,
NULL, NULL);
if (!window) {
::glfwTerminate();
assert(false);
return 1;
}
#if 0
::glfwSetWindowCloseCallback(
window,
closeCallback);
::glfwSetKeyCallback(
window,
keyCallback);
::glfwSetMouseButtonCallback(
window,
mouseCallback);
::glfwSetCursorPosCallback(
window,
motionCallback);
::glfwSetScrollCallback(
window,
wheelCallback);
#endif
glfwMakeContextCurrent(window);
glfwSwapInterval(1);
SetCurrentDirectoryFromExe();
// TODO
Rand::Init(0);
auto world = cornell_box();
vec3 lookfrom(278, 278, -800);
vec3 lookat(278, 278, 0);
float dist_to_focus = 10.0;
float aperture = 0.1;
camera cam(
lookfrom,
lookat,
vec3(0, 1, 0),
40, // vfov
float(nx) / float(ny), // aspect
aperture,
dist_to_focus);
Init();
while (!glfwWindowShouldClose(window)) {
display(world, cam);
::glfwSwapBuffers(window);
::glfwPollEvents();
}
for (int i = 0; i < thread_num; i++) {
g_threads[i].Join();
}
::glfwDestroyWindow(window);
::glfwTerminate();
return 1;
}
int main(int argc, char* argv[])
{
::glfwSetErrorCallback(errorCallback);
auto result = ::glfwInit();
if (!result) {
assert(false);
return 1;
}
::glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
::glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
auto window = ::glfwCreateWindow(
WIDTH,
HEIGHT,
TITLE,
NULL, NULL);
if (!window) {
::glfwTerminate();
assert(false);
return 1;
}
#if 0
::glfwSetWindowCloseCallback(
window,
closeCallback);
::glfwSetKeyCallback(
window,
keyCallback);
::glfwSetMouseButtonCallback(
window,
mouseCallback);
::glfwSetCursorPosCallback(
window,
motionCallback);
::glfwSetScrollCallback(
window,
wheelCallback);
#endif
glfwMakeContextCurrent(window);
glfwSwapInterval(1);
SetCurrentDirectoryFromExe();
// TODO
Rand::Init(0);
#ifdef ENABLE_RANDOM_SCENE
HitableList* world = new HitableList();
random_scene(world);
vec3 lookfrom(13, 2, 3);
vec3 lookat(0, 0, 0);
#else
hitable *list[5];
float R = cos(_MATH_PI / 4);
list[0] = new sphere(vec3(0, 0, -1), 0.5, new lambertian(vec3(0.1, 0.2, 0.5)));
list[1] = new sphere(vec3(0, -100.5, -1), 100, new lambertian(vec3(0.8, 0.8, 0.0)));
list[2] = new sphere(vec3(1, 0, -1), 0.5, new metal(vec3(0.8, 0.6, 0.2), 1.0));
list[3] = new sphere(vec3(-1, 0, -1), 0.5, new dielectric(1.5));
//list[4] = new sphere(vec3(-1, 0, -1), -0.45, new dielectric(1.5));
HitableList* world = new HitableList();
world->add(list[0]);
world->add(list[1]);
world->add(list[2]);
world->add(list[3]);
vec3 lookfrom(0, 0, 1);
vec3 lookat(0, 0, -1);
#endif
float dist_to_focus = 10.0;
float aperture = 0.1;
camera cam(
lookfrom,
lookat,
vec3(0, 1, 0),
60, // vfov
float(nx) / float(ny), // aspect
aperture,
dist_to_focus);
Init();
while (!glfwWindowShouldClose(window)) {
display(world, cam);
::glfwSwapBuffers(window);
::glfwPollEvents();
}
::glfwDestroyWindow(window);
::glfwTerminate();
return 1;
}