static void Main(string[] args)
{
// Seed RNG
FastRandom.Initialize((uint)new Random().Next());
string homePath = (Environment.OSVersion.Platform == PlatformID.Unix ||
Environment.OSVersion.Platform == PlatformID.MacOSX)
? Environment.GetEnvironmentVariable("HOME")
: Environment.ExpandEnvironmentVariables("%HOMEDRIVE%%HOMEPATH%");
var outputFileName = Path.Combine(new string[] { homePath, "output.jpg" });
var nx = 600; // Horizontal resolution
var ny = 400; // Vertical resolution
var ns = 150; // Antialising samples per pixel
Console.WriteLine($"Width:\t{nx}");
Console.WriteLine($"Height:\t{ny}");
Console.WriteLine($"Antialiasing:\t{ns}");
Console.WriteLine();
var scene = new Scenes.CornellBox();
var world = scene.GetObjects();
var cam = scene.GetCamera((double)nx / (double)ny);
byte[] outputBytes = new byte[4 * nx * ny];
Console.WriteLine("Rendering...");
UpdateProgress(ny, 0);
var linesRendered = 0;
Parallel.For(0, ny, j =>
{
for (int i = 0; i < nx; i++)
{
Vec3 col = new Vec3(0.0, 0.0, 0.0);
for (int s = 0; s < ns; s++)
{
double u = (i + FastRandom.RandomDouble()) / nx;
double v = (j + FastRandom.RandomDouble()) / ny;
Ray r = cam.GetRay(u, v);
col += Color(r, world, 0);
}
col /= ns;
col = new Vec3(Math.Sqrt(col[0]), Math.Sqrt(col[1]), Math.Sqrt(col[2]));
outputBytes[4 * ((ny - 1 - j) * nx) + (4 * i)] = (byte)(255.9 * col[0]);
outputBytes[4 * ((ny - 1 - j) * nx) + (4 * i) + 1] = (byte)(255.9 * col[1]);
outputBytes[4 * ((ny - 1 - j) * nx) + (4 * i) + 2] = (byte)(255.9 * col[2]);
outputBytes[4 * ((ny - 1 - j) * nx) + (4 * i) + 3] = 255;
}
linesRendered++;
UpdateProgress(ny, linesRendered);
});
Console.WriteLine("\nRendering completed, writing to file...");
var outputImg = Image.LoadPixelData <Byte4>(outputBytes, nx, ny);
outputImg.Save(outputFileName);
Console.WriteLine("Saving completed, press any key to exit.");
Console.ReadKey();
}
