private unsafe void RenderLoop(int iterations)
{
// Create a ray tracer, and create a reference to "sphere2" that we are going to bounce
var packetTracer = new Packet256Tracer(_width, _height);
var scene = packetTracer.DefaultScene;
var sphere2 = (SpherePacket256)scene.Things[0]; // The first item is assumed to be our sphere
var baseY = sphere2.Radiuses;
sphere2.Centers.Ys = sphere2.Radiuses;
// Timing determines how fast the ball bounces as well as diagnostics frames/second info
var renderingTime = new Stopwatch();
var totalTime = Stopwatch.StartNew();
// Keep rendering until the iteration count is hit
for (_frames = 0; _frames < iterations; _frames++)
{
// Or the rendering task has been canceled
if (_cancellation.IsCancellationRequested)
{
break;
}
// Get the next buffer
var rgbBuffer = _freeBuffers.GetObject();
// Determine the new position of the sphere based on the current time elapsed
float dy2 = 0.8f * MathF.Abs(MathF.Sin((float)(totalTime.ElapsedMilliseconds * Math.PI / 3000)));
sphere2.Centers.Ys = Avx.Add(baseY, Vector256.Create(dy2));
// Render the scene
renderingTime.Reset();
renderingTime.Start();
ParallelOptions options = new ParallelOptions
{
MaxDegreeOfParallelism = _degreeOfParallelism,
CancellationToken = _cancellation.Token
};
fixed(int *ptr = rgbBuffer)
{
packetTracer.RenderVectorized(scene, ptr);
}
renderingTime.Stop();
_framesPerSecond = (1000.0 / renderingTime.ElapsedMilliseconds);
_freeBuffers.PutObject(rgbBuffer);
}
}
private unsafe void RenderTo(string fileName, bool wirteToFile)
{
var packetTracer = new Packet256Tracer(_width, _height);
var scene = packetTracer.DefaultScene;
var rgb = new int[_width * 3 * _height];
Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
fixed(int *ptr = rgb)
{
packetTracer.RenderVectorized(scene, ptr);
}
stopWatch.Stop();
TimeSpan ts = stopWatch.Elapsed;
string elapsedTime = String.Format("{0:00}:{1:00}:{2:00}.{3:00}",
ts.Hours, ts.Minutes, ts.Seconds,
ts.Milliseconds / 10);
Console.WriteLine("RunTime " + elapsedTime);
if (wirteToFile)
{
using (var file = new System.IO.StreamWriter(fileName))
{
file.WriteLine("P3");
file.WriteLine(_width + " " + _height);
file.WriteLine("255");
for (int i = 0; i < _height; i++)
{
for (int j = 0; j < _width; j++)
{
// Each pixel has 3 fields (RGB)
int pos = (i * _width + j) * 3;
file.Write(rgb[pos] + " " + rgb[pos + 1] + " " + rgb[pos + 2] + " ");
}
file.WriteLine();
}
}
}
}
