private Vector3 Reflection(RayHit hit, List <Light> lightList, List <EngineObject> objList, int depth)
{
if (depth <= 0 || hit.ObjHit.Finishing.Kr == 0)
{
return(Vector3.Zero);
}
Vector3 reflected = Reflect(hit.Normal);
Ray scattered = new Ray(hit.Position, reflected);
if (Vector3.Dot(scattered.Dir, hit.Normal) > 0)
{
return(scattered.RayColor(objList, lightList, depth - 1) * hit.ObjHit.Finishing.Kr);
}
return(Vector3.Zero);
}
private void SaveFile()
{
int scannedPixels = 0;
Parallel.For(0, Height, new ParallelOptions()
{
MaxDegreeOfParallelism = 1
}, (k) =>
{
int j = Height - k;
for (int i = 0; i < Width; i++)
{
Vector3 color = Vector3.Zero;
for (int s = 0; s < samplesPerPixel; s++)
{
var u = (float)(i + Utils.Rand.NextDouble()) / (Width - 1);
var v = (float)(j + Utils.Rand.NextDouble()) / (Height - 1);
Ray r = Camera.GetRay(u, v);
color += r.RayColor(EngineObjects, SceneLights, maxDepth);
}
//System.Threading.Interlocked.Increment(ref scannedPixels);
//var tmp = MathF.Round((float)scannedPixels / ColorBuffer.Length * 100);
//Console.WriteLine(tmp.ToString().Replace(',', '.') + " %");
ColorBuffer[(k * Width) + i] = color;
}
});
using StreamWriter sw = new StreamWriter(outputFilePath);
sw.WriteLine("P3");
sw.WriteLine($"{Width} {Height}");
sw.WriteLine("255");
for (int i = 0; i < ColorBuffer.Length; i++)
{
sw.WriteColor(ColorBuffer[i], samplesPerPixel);
}
sw.Flush();
Console.WriteLine("Done!");
}
