protected override void LoadContent()
 {
     JadeCameraManager.LoadContent(GraphicsDevice);
     JadeObjectManager.RootNode.LoadContent(GraphicsDevice, Content);
     JadeShaderManager.LoadContent(GraphicsDevice, Content);
     base.LoadContent();
 }
 void Window_ClientSizeChanged(object sender, System.EventArgs e)
 {
     GDM.PreferredBackBufferWidth  = Window.ClientBounds.Width;
     GDM.PreferredBackBufferHeight = Window.ClientBounds.Height;
     JadeCameraManager.UpdateViewports(GraphicsDevice.Viewport);
 }