Virtual liquid manipulation using general shape vessel

Describes a method to realize the interactive manipulation of a virtual liquid using virtual vessels which are expressed by a general convex-shape polyhedron. We propose a liquid manipulation model which has some functions to treat the relation between the volume of liquid in a vessel and the height level of the liquid surface in it while it is being tilted. For a general-shape vessel, a lookup table is implemented to calculate the above functions. Our system with this proposed model makes it possible to catch the liquid using the virtual vessel, to hold the liquid in it, then to spill the liquid by tilting it. Also, the system realizes a manipulation method to skim the liquid from another liquid vessel.