Talk about using Direct3D on WPF

1. Direct3D to WPF
Daosheng Mu
2012.1.3

2. Outline
• WPF
• Direct3D
• Binding-P/Invoke, CIL

3. WPF
• Windows Presentation Foundation
– Based on .NET 3.0
– GUI utilizes DirectX
– eXtensible Application Markup Language (XAML)
• For more effective to develop UI

4. Direct3D
• 3D graphics API supported by Microsoft
• Utilize GPU hardware acceleration
• Used to render 3D application which
performance is important
• Game engine usually is designed to use
c++/d3d commonly

5. Communication between WPF/D3D
• How?
– P/Invoke
• extern identifier, huge cost
– CIL(Common Intermediate Language)
• Marshaling at compile time, better performance

6. How to write CLI
• Project Setting
– Adjust on Win32 dll project
– Create CLR project

7. Adjust on Win32 dll project
Add dll to WPF project

8. Adjust on Win32 dll project
Code Generation

9. Adjust on Win32 dll
CLR Support

10. Create CLR Project
Create CLR Class Library

11. CIL Sample
• Extend Idisposable
• Class ref
• *ObjPtr using
IntPtr

12. Result
• https://github.com/DaoshengMu/WPFd3dIma
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