public static void CreateAnimation(Viewport from, Viewport to, ref ReadOnlyBuffer <float> coordinates, int imageWidth, int imageHeight)
{
// Creating/handling the frames folder.
if (Directory.Exists("frames"))
{
foreach (var f in Directory.GetFiles("frames"))
{
File.Delete(f);
}
}
else
{
Directory.CreateDirectory("frames");
}
Thread.Sleep(500);
var previousMaxDensity = -1f;
/// This just determines how many frames to render.
var timeToTake = 1; // seconds
var frameRate = 1000;
var progress = 0;
var watch = new Stopwatch();
watch.Start();
for (var i = 0; i < frameRate * timeToTake; i++)
{
var t = i / (float)(frameRate * timeToTake);
t = Smoothing(t);
var image = new PSprite(imageWidth, imageHeight);
image.Art.SetPixels(GalaxyRenderer.Render(
Viewport.Lerp(from, to, t), 1000, 1000,
GalaxyRenderer.DefaultColorMapping,
i == 0 ? (float?)null : previousMaxDensity,
out previousMaxDensity,
ref coordinates));
if (!(image is null))
{
image.Save(@"frames\" + i.ToString("000000") + ".png");
image.Dispose();
}
progress++;
#region Logging progress per frame
Console.WriteLine(progress + " / " + (frameRate * timeToTake) + " - " + ((progress * 100) / (double)(frameRate * timeToTake)).ToString("0.00") + "%");
var secondsPerFrame = watch.Elapsed.TotalSeconds / progress;
var framesRemaining = (frameRate * timeToTake) - progress;
var timeRemaining = new TimeSpan((long)(10000000 * (framesRemaining * secondsPerFrame)));
Console.WriteLine("Estimated time remaining: " +
timeRemaining.Hours.ToString("00") + ":" +
timeRemaining.Minutes.ToString("00") + ":" +
timeRemaining.Seconds.ToString("00"));
Console.WriteLine("Average time per frame: " + secondsPerFrame.ToString("0.00") + " seconds.");
#endregion
}
Console.WriteLine("Frame rendering complete. Compiling video...");
var info = new ProcessStartInfo()
{
FileName = "ffmpeg",
Arguments = string.Format(" -framerate {0} -i %06d.png -c:v libx264 -r {0} {1}.mp4", frameRate, "out"),
WorkingDirectory = "frames",
};
var p = Process.Start(info);
p.WaitForExit();
Console.WriteLine("Finished. Saved video as out.mp4.");
Console.Read();
}
public void Setup()
{
Console.Write("Enter video framerate: ");
var framerate = Console.ReadLine();
Console.Write("Enter total frame count: ");
var frames = int.Parse(Console.ReadLine());
Console.Write("Enter output video file name (no extension): ");
var name = Console.ReadLine().Trim();
Console.Write("Enter resolution separated by a comma (480,480): ");
var res = Console.ReadLine().Split(',').ToList().ConvertAll(resPart => int.Parse(resPart)).ToArray();
Console.Write("Enter mandelbrot power range (x in f(z)=z^x + c) separated by a comma (1,10): ");
var range = Console.ReadLine().Split(',').ToList().ConvertAll(rangePart => int.Parse(rangePart)).ToArray();
var s = Stopwatch.StartNew();
Console.WriteLine("Generation is starting, please wait...");
var done = 0;
var items = Enumerable.Range(0, frames).ToArray();
var chunks = items
.Select((s2, i) => new { Value = s2, Index = i })
.GroupBy(x => x.Index / 10)
.Select(grp => grp.Select(x => x.Value).ToArray()).ToList();
var threads = new List <Thread>();
for (var t = 0; t < Environment.ProcessorCount - 1; t++)
{
var t2 = t;
var thread = new Thread(() =>
{
start:;
if (chunks.Count == 0)
{
goto exit;
}
var assignedChunk = chunks[0];
chunks.RemoveAt(0);
foreach (var a in assignedChunk)
{
var pow = PMath.Map(a, 1, frames, range[0], range[1]);
var Image = new PSprite(res[0], res[1]);
var pixels = Image.Art.GetPixels();
for (var y = 0; y < Image.Height; y++)
{
for (var x = 0; x < Image.Width; x++)
{
var xTarget = 4f;
var yTarget = (xTarget / Image.Width) * Image.Height;
var x2 = (x / (Image.Width / (xTarget))) - (xTarget / 2);
var y2 = (y / (Image.Height / (yTarget))) - (yTarget / 2);
var c = new Complex(x2, y2);
var z = Complex.Zero;
var max = -1f;
var maxWasHit = false;
for (var i = 0; i < maxDepth; i++)
{
z = (Complex.Pow(z, pow)) + c;
if ((z.Real * z.Real) + (z.Imaginary * z.Imaginary) > 16 && max == -1f)
{
max = i;
maxWasHit = true;
break;
}
}
var color = PColor.Black;
if (maxWasHit)
{
var floorMax = (int)Math.Floor(max);
var c1 = pallet[floorMax % pallet.Length];
var c2 = pallet[(floorMax + 1) % pallet.Length];
color = PColor.Lerp(c1, c2, 0.5f);
}
var pos = ((y * Image.Width) + x) * 4;
pixels[pos] = (byte)(color.R);
pixels[pos + 1] = (byte)(color.G);
pixels[pos + 2] = (byte)(color.B);
pixels[pos + 3] = 255;
}
}
Image.Art.SetPixels(pixels);
Image.Save(folder + a.ToString("000000") + ".png");
var percent = (done / (float)frames);
var remaining = (1f - percent) * 100;
var secondsPerPercent = s.Elapsed.TotalSeconds / (percent * 100f);
var minutesRemaining = ((secondsPerPercent * remaining) / 60f);
var estimatedTime = DateTime.Now.AddMinutes(done == 0 ? 0 : minutesRemaining);
Console.WriteLine("Progress: " + done + "/" + frames + " " + (percent * 100f).ToString("0.00") +
"% Estimated completion time: " + estimatedTime);
done++;
}
goto start;
exit:;
})
{
Name = "Mandelbrot: Core " + (t + 1),
Priority = ThreadPriority.AboveNormal,
};
threads.Add(thread);
thread.Start();
}
;
var info = new ProcessStartInfo()
{
FileName = "ffmpeg",
Arguments = string.Format(" -framerate {0} -i %06d.png -c:v libx264 -r {0} {1}.mp4", framerate, name),
WorkingDirectory = folder,
};
var activeThreads = 1;
do
{
Console.Title = "Active thread count: " + activeThreads;
activeThreads = threads.Where(t => t.IsAlive).Count();
Thread.Sleep(1000);
Title(activeThreads);
}while (activeThreads > 0);
Console.Title = "Active thread count: 0";
var p = Process.Start(info);
p.WaitForExit();
Console.WriteLine(@"Saved as " + folder + "out.mp4");
Console.ReadLine();
Close();
}
