/// <summary>
/// Metoda urcena pro spusteni vlakna s vypoctem jednotlivych pixelu
/// Jednotlive radky pixelu jsou rozdeleny do vlaken pomoci Parallel a
/// nasledne spuctena jejich hodnota
/// </summary>
public void RenderingPicture()
{
Rendering = true;
int screenWidth = scene.screenWidth;
int screenHeight = scene.screenWidth;
int superSamples = scene.superSamples;
double widthRecip = 1.0 / screenWidth;
double heightRecip = 1.0 / screenHeight;
double superSamplesRecip = 1.0 / superSamples;
double superSamplesHalfRecip = superSamplesRecip * 0.5;
double superSamplesSquaredRecip = 1.0 / (superSamples * superSamples);
Bitmap image = new Bitmap(screenWidth, screenHeight);
object obj = new object();
Parallel.For(0, screenHeight, y =>
{
for (int x = 0; x < screenWidth; ++x)
{
Vector color = new Vector();
for (int j = 0; j < superSamples; ++j)
{
double jj = j * superSamplesRecip;
double yy = (y + superSamplesHalfRecip + jj) * heightRecip;
for (int i = 0; i < superSamples; ++i)
{
double ii = i * superSamplesRecip;
double xx = (x + superSamplesHalfRecip + ii) * widthRecip;
Ray ray = scene.Camera.ImageRay(xx, yy);
color = color + scene.RayTrace(ray).Clamped();
}
if (!Rendering)
{
break;
}
}
color = color * superSamplesSquaredRecip;
Color colorARGB = Color.FromArgb(color.toARGB());
lock (obj)
{
image.SetPixel(x, y, colorARGB);
// fileManipulator.SaveImgToTXT(y, color.Brightness(colorARGB) );
}
if (!Rendering)
{
break;
}
}
});
image.Save(scene.imageOutputFilePath, ImageFormat.Png);
scene.Image = image;
imageControler.InitWindow.SetCanvasAfterRendering();
Rendering = false;
Console.WriteLine("Done!");
}