One of the most difficult tasks, since the invention of the Computer, has been the solution of nonlinear wave equations. Now, the broader problem is to make a computer operating on Image flows as data and having elementary instructions as solving nonlinear wave equations. Interestingly, almost all of the living sensory systems have similar anatomies and physiology models. The Cellular Wave Computer is exactly doing this. Their implementation is presently mostly 2D.A major challenge how to make it in 3D, and how to make it in nanoscale or by using non-electronic materials. These could lead a new understanding of complexity of computing, as well. Demonstrations will highlight the latest applications.