public Form1()
{
InitializeComponent();
SetUpWpf3D();
Setup3DObjects();
// HACK HACK HACK:
// To pass mouse wheel events to WPF controls, we need to manually pass the mouse wheel event to WPF
// The following class does that for us:
MouseWheelMessageFilter.RegisterMouseWheelHandling(_rootGrid);
}
public static void RegisterMouseWheelHandling(FrameworkElement element)
{
var mouseWheelMessageFilter = new MouseWheelMessageFilter(element);
}