protected void OnLoaded(object sender, RoutedEventArgs e)
{
if (_loaded)
{
return;
}
_graphicsDeviceService = new GraphicsDeviceService();
_renderWindow = new RenderWindow((int)ActualWidth, (int)ActualHeight, _graphicsDeviceService.Device);
_backBufferPointer = _renderWindow.GetBackBufferComPointer();
_trackball.TransformUpdated += OnTrackballTransformUpdated;
_trackball.EventSource = this;
_renderer = new Renderer(_graphicsDeviceService.Device, GetModel(),
_graphicsDeviceService.Device.Viewport.Width, _graphicsDeviceService.Device.Viewport.Height,
_trackball.Transform);
ModelEditorViewModel vm = (ModelEditorViewModel)DataContext;
vm.RenderParametersChanged += (sender2, e2) => Refresh();
Refresh();
_loaded = true;
}
private Model GetModel()
{
if (_model == null)
{
ModelEditorViewModel vm = (ModelEditorViewModel)DataContext;
_model = ModelConverter.FromScene(vm.Scene.Scene, _graphicsDeviceService.Device);
}
return(_model);
}
private void Refresh()
{
if (_backBufferPointer == IntPtr.Zero)
{
return;
}
D3DImageSource.Lock();
// Calling SetBackBuffer repeatedly with the same IntPtr is a no-op, so there's no
// performance penalty.
D3DImageSource.SetBackBuffer(D3DResourceType.IDirect3DSurface9, _backBufferPointer, true);
ModelEditorViewModel vm = (ModelEditorViewModel)DataContext;
_renderer.Render(vm.RenderParameters);
D3DImageSource.AddDirtyRect(new Int32Rect(0, 0, (int)ActualWidth, (int)ActualHeight));
D3DImageSource.Unlock();
}
private void Render()
{
ModelEditorViewModel vm = (ModelEditorViewModel)DataContext;
_renderer.Render(vm.RenderParameters);
}