private void ResultFunc(
IPixelBuffer pixelBuffer,
RendererData rendererData,
ConcurrentQueue <RenderLineResult> resultQueue,
AutoResetEvent queueDataAvailableEvent)
{
var incompleteRows = new HashSet <int>();
for (var y = 0; y < pixelBuffer.Height; y++)
{
incompleteRows.Add(y);
}
while (incompleteRows.Count > 0)
{
queueDataAvailableEvent.WaitOne(TimeSpan.FromMilliseconds(1000));
while (resultQueue.TryDequeue(out var renderLineResult))
{
foreach (var data in renderLineResult.RowPixels)
{
rendererData.SetPixelData(data);
}
// assert pixelArray.Width == renderLineResult.Count
pixelBuffer.SetPixelRowColors(renderLineResult.Y, renderLineResult.RowPixels.Select(x => x.Color));
incompleteRows.Remove(renderLineResult.Y);
var totalRows = Convert.ToSingle(pixelBuffer.Height);
var completeRows = Convert.ToSingle(pixelBuffer.Height - incompleteRows.Count);
var percentComplete = completeRows / totalRows * 100.0f;
Console.WriteLine($"Percent Complete: {percentComplete:F}%");
Progress?.Invoke(this, new RenderProgressEventArgs(percentComplete));
}
}
}
private void ResultFunc(
IPixelBuffer pixelBuffer,
RendererData rendererData,
ConcurrentQueue <RenderResult> resultQueue,
AutoResetEvent queueDataAvailableEvent)
{
try
{
var incompletePixels = new HashSet <Tuple <int, int> >();
for (var y = 0; y < pixelBuffer.Height; y++)
{
for (int x = 0; x < pixelBuffer.Width; x++)
{
incompletePixels.Add(Tuple.Create(x, y));
}
}
var totalPixels = Convert.ToSingle(pixelBuffer.Height * pixelBuffer.Width);
int previousPercent = 0;
while (incompletePixels.Count > 0)
{
queueDataAvailableEvent.WaitOne(TimeSpan.FromMilliseconds(1000));
while (resultQueue.TryDequeue(out var renderResult))
{
rendererData.SetPixelData(renderResult.PixelData);
// assert pixelArray.Width == renderLineResult.Count
pixelBuffer.SetPixelColor(renderResult.X, renderResult.Y, renderResult.PixelData.Color);
incompletePixels.Remove(Tuple.Create(renderResult.X, renderResult.Y));
var completePixels = Convert.ToSingle(totalPixels - incompletePixels.Count);
var percentComplete = completePixels / totalPixels * 100.0f;
int intPercent = Convert.ToInt32(percentComplete);
if (intPercent > previousPercent)
{
previousPercent = intPercent;
Console.WriteLine($"Percent Complete: {percentComplete:F}%");
Progress?.Invoke(this, new RenderProgressEventArgs(percentComplete));
}
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
private RendererData RenderMultiThreaded(
IPixelBuffer pixelArray,
Camera camera,
IHitable world,
IHitable lightHitable,
RenderConfig renderConfig,
Func <Ray, ColorVector> backgroundFunc)
{
var rendererData = new RendererData(pixelArray.Width, pixelArray.Height);
var rayTracer = new RayTracer(camera, world, lightHitable, renderConfig, pixelArray.Width, pixelArray.Height, backgroundFunc);
ThreadPool.SetMinThreads(renderConfig.NumThreads * 3, renderConfig.NumThreads * 3);
var queueDataAvailableEvent = new AutoResetEvent(false);
var inputQueue = new ConcurrentQueue <RenderInput>();
var resultQueue = new ConcurrentQueue <RenderResult>();
for (var y = pixelArray.Height - 1; y >= 0; y--)
{
for (var x = 0; x < pixelArray.Width; x++)
{
inputQueue.Enqueue(new RenderInput(x, y));
}
}
var tasks = new List <Task>();
try
{
for (var thid = 0; thid < renderConfig.NumThreads; thid++)
{
Console.WriteLine($"Creating task for thread id: {thid}");
tasks.Add(
Task.Run(() => RenderFunc(rayTracer, inputQueue, resultQueue, queueDataAvailableEvent)));
}
tasks.Add(Task.Run(() => ResultFunc(pixelArray, rendererData, resultQueue, queueDataAvailableEvent)));
Task.WaitAll(tasks.ToArray());
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
return(rendererData);
}
