/// <summary> Initializes Direct3D-OCCT rendering. </summary>
public void StopRenderingScene()
{
// This method is called when WPF loses its Direct3D device,
// so we should just release our custom Direct3D scene
CompositionTarget.Rendering -= OnRendering;
if (myD3DRender != IntPtr.Zero)
{
Direct3DProxy.ReleaseRender(ref myD3DRender);
}
myColorSurf = IntPtr.Zero;
}
/// <summary> Initializes Direct3D-OCCT rendering. </summary>
private void BeginRenderingScene()
{
if (myIsFailed)
{
return;
}
if (myD3DImage.IsFrontBufferAvailable)
{
IntPtr aWinHandle;
IntPtr aD3DDevice;
// Initialize Direct3D device and render target
myD3DRender = Direct3DProxy.InitRender(out aWinHandle, out aD3DDevice);
Viewer = new OCCViewer();
if (!Viewer.InitInterop(aWinHandle, aD3DDevice))
{
MessageBox.Show("Failed to initialize OpenGL-Direct3D interoperability!",
"Error", MessageBoxButton.OK, MessageBoxImage.Error);
myIsFailed = true;
if (myD3DRender != IntPtr.Zero)
{
Direct3DProxy.ReleaseRender(ref myD3DRender);
}
return;
}
// Leverage the Rendering event of WPF composition
// target to update the our custom Direct3D scene
CompositionTarget.Rendering += OnRendering;
}
}
