/// <summary>
/// Animation rendering prolog: prepare all the global (uniform) values, start the main thread.
/// </summary>
private void buttonRenderAnim_Click(object sender, EventArgs e)
{
if (aThread != null)
{
return;
}
buttonRenderAnim.Enabled = false;
buttonRender.Enabled = false;
buttonRes.Enabled = false;
buttonStop.Enabled = true;
lock ( progress )
{
progress.Continue = true;
}
// Global animation properties (it's safe to access GUI components here):
time = (double)numFrom.Value;
end = (double)numTo.Value;
if (end <= time)
{
end = time + 1.0;
}
double fps = (double)numFps.Value;
dt = (fps > 0.0) ? 1.0 / fps : 25.0;
end += 0.5 * dt;
frameNumber = 0;
width = ImageWidth;
if (width <= 0)
{
width = panel1.Width;
}
height = ImageHeight;
if (height <= 0)
{
height = panel1.Height;
}
superSampling = (int)numericSupersampling.Value;
if (scene == null)
{
scene = FormSupport.getScene(); // scene prototype
}
// Start main rendering thread:
aThread = new Thread(new ThreadStart(this.RenderAnimation));
aThread.Start();
}
/// <summary>
/// Redraws the whole image.
/// </summary>
private void RenderImage()
{
Cursor.Current = Cursors.WaitCursor;
buttonRender.Enabled = false;
buttonRenderAnim.Enabled = false;
buttonRes.Enabled = false;
width = ImageWidth;
if (width <= 0)
{
width = panel1.Width;
}
height = ImageHeight;
if (height <= 0)
{
height = panel1.Height;
}
superSampling = (int)numericSupersampling.Value;
Bitmap newImage = new Bitmap(width, height, PixelFormat.Format24bppRgb);
if (scene == null)
{
scene = FormSupport.getScene(); // scene prototype
}
IImageFunction imf = FormSupport.getImageFunction(scene);
imf.Width = width;
imf.Height = height;
IRenderer rend = FormSupport.getRenderer(imf, superSampling);
rend.Width = width;
rend.Height = height;
rend.Adaptive = 0;
rend.ProgressData = progress;
progress.Continue = true;
// animation:
ITimeDependent sc = scene as ITimeDependent;
if (sc != null)
{
sc.Time = (double)numTime.Value;
}
MT.InitThreadData();
Stopwatch sw = new Stopwatch();
sw.Start();
rend.RenderRectangle(newImage, 0, 0, width, height);
sw.Stop();
labelElapsed.Text = string.Format(CultureInfo.InvariantCulture, "Elapsed: {0:f1}s",
1.0e-3 * sw.ElapsedMilliseconds);
setImage(ref outputImage, newImage);
buttonRender.Enabled = true;
buttonRenderAnim.Enabled = true;
buttonRes.Enabled = true;
Cursor.Current = Cursors.Default;
}
/// <summary>
/// Worker thread (picks up individual frames and renders them one by one).
/// </summary>
protected void RenderWorker()
{
// thread-specific data:
ITimeDependent mySceneTD = scene as ITimeDependent;
IRayScene myScene = (mySceneTD == null) ? scene : (IRayScene)mySceneTD.Clone();
mySceneTD = myScene as ITimeDependent;
MT.InitThreadData();
IImageFunction imf = FormSupport.getImageFunction(myScene);
imf.Width = width;
imf.Height = height;
IRenderer rend = FormSupport.getRenderer(imf, superSampling);
rend.Width = width;
rend.Height = height;
rend.Adaptive = 0; // turn off adaptive bitmap synthesis completely (interactive preview not needed)
rend.ProgressData = progress;
// worker loop:
while (true)
{
double myTime;
int myFrameNumber;
lock ( progress )
{
if (!progress.Continue ||
time > end)
{
sem.Release(); // chance for the main animation thread to give up as well..
return;
}
// got a frame to compute:
myTime = time;
time += dt;
myFrameNumber = frameNumber++;
}
// set up the new result record:
Result r = new Result();
r.image = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
r.frameNumber = myFrameNumber;
// set specific time to my scene:
if (mySceneTD != null)
{
mySceneTD.Time = myTime;
}
// render the whole frame:
rend.RenderRectangle(r.image, 0, 0, width, height);
// ... and put the result into the output queue:
lock ( queue )
{
queue.Enqueue(r);
}
sem.Release(); // notify the main animation thread
}
}