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Increase Performances when Using D3DImage in WPF

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18 Sep 2010CPOL 26.5K   6   2
Increase Performances when Using D3DImage in WPF
Often when you read articles explaining how to use a D3DImage in your WPF application, you use code which directly handles the CompositorTarget.Rendering event by updating the 3D world... This can lead to performance problems.

For example in my application, WPF refreshes the display with a FPS of 160: the handler which recreates the 3D image is then called 160 times a second. No need to refresh this often.

The solution I used is to create a Timer which will do it at the FPS I want. Let's say 30FPS for example:

C#
public void createTheRenderingWithCorrectFPS(int whichFPS){
   DispatcherTimer _timer = new DispatcherTimer();
   _timer.Interval = TimeSpan.FromMilliseconds(1000d / whichFPS);
   _timer.Start();
   _timer.Tick += new EventHandler(_timer_Tick);
}
void _timer_Tick(object sender, EventArgs e)
{
   //Refresh the 3D scene
}


This enables your application to be really more reactive especially that you need to be on the main thread to update the 3D scene...

Do you know a better way?

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Software Developer http://wpf-france.fr
France (Metropolitan) France (Metropolitan)
Jonathan creates software, mostly with C#,WPF and XAML.

He really likes to works on every Natural User Interfaces(NUI : multitouch, touchless, etc...) issues.



He is awarded Microsoft MVP in the "Client Application Development" section since 2011.


You can check out his WPF/C#/NUI/3D blog http://www.jonathanantoine.com.

He is also the creator of the WPF French community web site : http://wpf-france.fr.

Here is some videos of the projects he has already work on :

Comments and Discussions

 
GeneralThx ^^ Pin
jmix9021-Sep-10 11:32
jmix9021-Sep-10 11:32 

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