Multi-touch Water Effects in WPF and Silverlight

I’ve found that creating water effects that respond interactively and smoothly is not really something easy to do in WPF or Silverlight. However because a project required it I trudged forward managed to get it working pretty nicely – buttery smooth and low CPU utilization. The results can be seen in the video, but the reasons it wasn’t easy may be interesting to WPF/Silverlight developers so I’ll mention why...