private void BackgroundRender(object state)
{
var cancellationToken = (CancellationToken)state;
RayTracer rayTracer = new RayTracer(_width, _height, (rgb) =>
{
Task.Factory.StartNew(() =>
{
var bmpData = _image.LockBits(_rect, ImageLockMode.WriteOnly, _image.PixelFormat);
Marshal.Copy(rgb, 0, bmpData.Scan0, rgb.Length);
_image.UnlockBits(bmpData);
pbImage.Refresh();
}, CancellationToken.None, TaskCreationOptions.AttachedToParent, _uiScheduler);
});
if (_parallel)
{
rayTracer.RenderParallel(rayTracer.DefaultScene, cancellationToken);
}
else
{
rayTracer.RenderSequential(rayTracer.DefaultScene, cancellationToken);
}
}
private void RenderLoop(object boxedToken)
{
try
{
var cancellationToken = (CancellationToken)boxedToken;
// Create a ray tracer, and create a reference to "sphere2" that we are going to bounce
var rayTracer = new RayTracer(width, height);
var scene = rayTracer.DefaultScene;
var sphere2 = (Sphere)scene.Things[0]; // The first item is assumed to be our sphere
var baseY = sphere2.Radius;
sphere2.Center.Y = sphere2.Radius;
// Timing determines how fast the ball bounces as well as diagnostics frames/second info
var renderingTime = new Stopwatch();
ParallelOptions options = new ParallelOptions
{
MaxDegreeOfParallelism = degreeOfParallelism,
CancellationToken = cancellation.Token
};
Random rnd = new Random();
// Keep rendering until the rendering task has been canceled
while (!cancellationToken.IsCancellationRequested)
{
// Determine the new position of the sphere based on the current time elapsed
//float dy2 = 0.8f * Math.Abs((float)Math.Sin(++ticks * Math.PI / 3000));
sphere2.Center.Y = baseY + 0.8f * (float)rnd.NextDouble ();
// Render the scene
renderingTime.Reset();
renderingTime.Start();
if (!parallel) rayTracer.RenderSequential(scene, rgb);
else if (showThreads) rayTracer.RenderParallelShowingThreads(scene, rgb, options);
else rayTracer.RenderParallel(scene, rgb, options);
renderingTime.Stop();
// Update the bitmap in the UI thread
var framesPerSecond = (1000.0 / renderingTime.ElapsedMilliseconds);
if (holder != null)
{
var canvas = holder.LockCanvas();
canvas.DrawBitmap(rgb, 0, width, 0, 0, width, height, false, null);
holder.UnlockCanvasAndPost(canvas);
}
RunOnUiThread(() => fpsText.Text = framesPerSecond.ToString("F1") + " FPS");
}
}
catch (Exception e)
{
Android.Util.Log.Error("Process exception", e.Message);
}
}
private void RenderLoop(object boxedToken)
{
var cancellationToken = (CancellationToken)boxedToken;
// Create a ray tracer, and create a reference to "sphere2" that we are going to bounce
var rayTracer = new RayTracer(_width, _height);
var scene = rayTracer.DefaultScene;
var sphere2 = (Sphere)scene.Things[0]; // The first item is assumed to be our sphere
var baseY = sphere2.Radius;
sphere2.Center.Y = sphere2.Radius;
// 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 rendering task has been canceled
while (!cancellationToken.IsCancellationRequested)
{
// Get the next buffer
var rgb = _freeBuffers.GetObject();
// Determine the new position of the sphere based on the current time elapsed
double dy2 = 0.8 * Math.Abs(Math.Sin(totalTime.ElapsedMilliseconds * Math.PI / 3000));
sphere2.Center.Y = baseY + dy2;
// Render the scene
renderingTime.Reset();
renderingTime.Start();
ParallelOptions options = new ParallelOptions { MaxDegreeOfParallelism = _degreeOfParallelism, CancellationToken = _cancellation.Token };
if (!_parallel) rayTracer.RenderSequential(scene, rgb);
else if (_showThreads) rayTracer.RenderParallelShowingThreads(scene, rgb, options);
else rayTracer.RenderParallel(scene, rgb, options);
renderingTime.Stop();
// Update the bitmap in the UI thread
//var framesPerSecond = (++frame * 1000.0 / renderingTime.ElapsedMilliseconds);
var framesPerSecond = (1000.0 / renderingTime.ElapsedMilliseconds);
BeginInvoke((Action)delegate
{
// Copy the pixel array into the bitmap
var bmpData = _bitmap.LockBits(_rect, ImageLockMode.WriteOnly, _bitmap.PixelFormat);
Marshal.Copy(rgb, 0, bmpData.Scan0, rgb.Length);
_bitmap.UnlockBits(bmpData);
_freeBuffers.PutObject(rgb);
// Refresh the UI
pbRenderedImage.Invalidate();
Text = "Ray Tracer - FPS: " + framesPerSecond.ToString("F1");
});
}
}
private void RenderLoop(object boxedToken)
{
var cancellationToken = (CancellationToken)boxedToken;
// Create a ray tracer, and create a reference to "sphere2" that we are going to bounce
var rayTracer = new RayTracer(_width, _height);
var scene = rayTracer.DefaultScene;
var sphere2 = (Sphere)scene.Things[0]; // The first item is assumed to be our sphere
var baseY = sphere2.Radius;
sphere2.Center.Y = sphere2.Radius;
// 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 rendering task has been canceled
while (!cancellationToken.IsCancellationRequested)
{
// Get the next buffer
var rgb = _freeBuffers.GetObject();
// Determine the new position of the sphere based on the current time elapsed
double dy2 = 0.8 * Math.Abs(Math.Sin(totalTime.ElapsedMilliseconds * Math.PI / 3000));
sphere2.Center.Y = baseY + dy2;
// Render the scene
renderingTime.Reset();
renderingTime.Start();
ParallelOptions options = new ParallelOptions {
MaxDegreeOfParallelism = _degreeOfParallelism, CancellationToken = _cancellation.Token
};
if (!_parallel)
{
rayTracer.RenderSequential(scene, rgb);
}
else if (_showThreads)
{
rayTracer.RenderParallelShowingThreads(scene, rgb, options);
}
else
{
rayTracer.RenderParallel(scene, rgb, options);
}
renderingTime.Stop();
// Update the bitmap in the UI thread
//var framesPerSecond = (++frame * 1000.0 / renderingTime.ElapsedMilliseconds);
var framesPerSecond = (1000.0 / renderingTime.ElapsedMilliseconds);
BeginInvoke((Action) delegate
{
// Copy the pixel array into the bitmap
var bmpData = _bitmap.LockBits(_rect, ImageLockMode.WriteOnly, _bitmap.PixelFormat);
Marshal.Copy(rgb, 0, bmpData.Scan0, rgb.Length);
_bitmap.UnlockBits(bmpData);
_freeBuffers.PutObject(rgb);
// Refresh the UI
pbRenderedImage.Invalidate();
Text = "Ray Tracer - FPS: " + framesPerSecond.ToString("F1");
});
}
}
