implement "impossible" fluid with houdini

[~nature~]

Hi,everyone,I guess you have read the wonderful paper "Efficient Simulation of Large Bodies of Water by Coupling Two and Three Dimensional Techniques"(here is the link http://www.frankpetterson.com/publications/rle/rle.pdf )

some videos: http://www.frankpetterson.com/publications/rle/videos/boat_straight.avi http://www.frankpetterson.com/publications/rle/videos/boat_turning.avi

sometimes there is situation when you desiring the fish before the river and decide to try spinning your own net.but the dilemma is whether to recreate the wheel or not. as this paper goes,the non-uniform grid which emphasize and amplify the surface detail via Navier-Stokes equations has been developped in order to prevent the data loss when comes to large-scale water by the ordinary uniform MAC method.unfortunately Houdini now only has the uniform MAC grid,but does it mean there is no way to do some trick to achieve the same effects or I have to recreate the wheel? what's your idea about it?

BTW:Recently,Digital Domain has developped the efficient level set toolkit for fluid visual effects in houdini which conquers the original houdini dense memory sensitve 3D Grid via "DB-Grid Data Structure" as they claimed. Do you have any more info about such DB-Grid? here is the paper for it.

An efficient level set toolkit for visual effects.pdf