} // end childTracer
static void Main(string[] args)
{
Stopwatch sw = Stopwatch.StartNew();
string input_config_filename = @"input.txt"; // default output file name
string output_filename = @"outfile.png"; // default output file name
if (args.Length > 0)
{
input_config_filename = args[0];
}
if (args.Length > 1)
{
output_filename = args[1];
}
ConfigFile.readFile(input_config_filename);
ConfigFile.workOnConfig();
Vec3 lookfrom = ConfigParams.look_from;
Vec3 lookat = ConfigParams.look_at;
float dist_to_focus = (lookfrom - lookat).length();
float aperture = ConfigParams.aperture_size;
float field_of_view = ConfigParams.field_of_view;
int nx = ConfigParams.X_pixels; // width
int ny = ConfigParams.Y_pixels; // height
int ns = ConfigParams.num_samples; // number of photon samples
new Camera(lookfrom, lookat, new Vec3(0.0f, 1.0f, 0.0f), field_of_view, (float)nx / (float)ny, aperture, dist_to_focus);
world = ConfigParams.getScene();
sky_active_flag = ConfigParams.sky_on;
//world = Scenery.my_light_scene(); sky_active_flag = false; // alternative way
rc = new RayCanvas(nx, ny, ns);
// call threads here.
if (numThreads < 1)
{
numThreads = 1;
}
progressList = new List <int>();
for (int cc = 0; cc < numThreads; cc++)
{
int a = 0;
progressList.Add(a);
}
for (int cc = 0; cc < numThreads; cc++)
{
Thread thread1 = new Thread(
new ParameterizedThreadStart(childTracer)
);
thread1.Start(cc);
}
// wait here until finished threads
while (Interlocked.Read(ref threadCounter) < numThreads)
{
int pi = 0;
for (int i = 0; i < progressList.Count; i++)
{
pi += progressList[i];
}
float pp = (((float)pi / (float)progressList.Count) / (float)ny) * 100.0f;
if (pp > 100.0f)
{
pp = 100.0f;
}
Console.WriteLine(pp.ToString("F2") + "%");
Thread.Sleep(1000);
}
// now when finished, finalize the values
rc.finalize();
// write the PNG file
Helper.writeToPng(output_filename, rc);
sw.Stop();
Console.WriteLine(String.Format("Elapsed time: {0:N1} sec", sw.Elapsed.TotalSeconds));
Console.WriteLine("Finished.");
} // end Main
public static void writeToPng(string fileName, RayCanvas rc)
{
// X := width :: col
// Y := height :: row
int width = rc.getNumXPixels();
int height = rc.getNumYPixels();
WriteableBitmap wbitmap = new WriteableBitmap(
width, height, 96, 96, PixelFormats.Bgra32, null);
byte[, ,] pixels = new byte[height, width, 4];
for (int col = 0; col < width; col++)
{
for (int row = 0; row < height; row++)
{
//for (int i = 0; i < 3; i++)
//{
pixels[row, col, 3] = 255; // alpha?
//}
int ir = (int)(256 * rc.getR(col, height - row - 1));
int ig = (int)(256 * rc.getG(col, height - row - 1));
int ib = (int)(256 * rc.getB(col, height - row - 1));
if (ir > 255)
{
ir = 255;
}
if (ig > 255)
{
ig = 255;
}
if (ib > 255)
{
ib = 255;
}
pixels[row, col, 0] = (byte)ib; // Blue first, PixelFormats.Bgra32
pixels[row, col, 1] = (byte)ig; // Green
pixels[row, col, 2] = (byte)ir; // Red last
}
}
// X := width :: col
// Y := height :: row
byte[] pixels1d = new byte[height * width * 4];
int index = 0;
for (int row = 0; row < height; row++)
{
for (int col = 0; col < width; col++)
{
for (int i = 0; i < 4; i++)
{
pixels1d[index++] = pixels[row, col, i];
}
}
}
Int32Rect rect = new Int32Rect(0, 0, width, height);
int stride = 4 * width;
wbitmap.WritePixels(rect, pixels1d, stride, 0);
string filePath = fileName;
var fileStream = new FileStream(filePath, FileMode.Create);
BitmapEncoder encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(wbitmap));
encoder.Save(fileStream);
fileStream.Close();
}