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Posted 22 Feb 2010

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Increase Performances when Using D3DImage in WPF

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3.20/5 (3 votes)
18 Sep 2010CPOL
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:

public void createTheRenderingWithCorrectFPS(int whichFPS){
   DispatcherTimer _timer = new DispatcherTimer();
   _timer.Interval = TimeSpan.FromMilliseconds(1000d / whichFPS);
   _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?


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


About the Author

Software Developer
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

He is also the creator of the WPF French community web site :

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

Comments and Discussions

GeneralThx ^^ Pin
jmix9021-Sep-10 12:32
Memberjmix9021-Sep-10 12:32 
GeneralReason for my vote of 4 Basics of 3D Application....good you... Pin
GPUToaster™12-Sep-10 20:31
MemberGPUToaster™12-Sep-10 20:31 
Reason for my vote of 4
Basics of 3D Application....good you pointed it out!!

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