I've got a problem on CFirstPersonCamera . My desktop screen resolution is 1024x768 and if I create a application using 800x600 in window mode,there is no problem about camera.But if the applicaiton use 800x600 in fullscreen mode,there seems to be some deviations. (1024 x 768 in fullscreen mode is OK).I think there might be something about camera I do not know. Here is my code: //When app initialize D3DXVECTOR3 Eye( 0, 10, -30.0f); D3DXVECTOR3 At( 0, 0, 0); m_Camera.SetViewParams( &Eye, &At ); m_Camera.SetProjParams( D3DX_PI/4, 800.0f/600.0f, 0.1f, 1000.0f ); //when app on Reset Device m_Camera.SetProjParams( D3DX_PI/4, 800.0f/600.0f, 0.1f, 1000.0f );

Then how to post screensthots?

I think the real problem is when eye is at (0,20,-5) and look at
point is at (0,0,0) if fullscreen resolution is the same as desktop,then I can see an object at (0,0,0) is in the center of screen,but if fullscreen resolution is not the same as desktop,then the object is not at the center of screen and I need to rotate the lookat point to find the object.