Computatioanl fluid dynmcis in a traditional animation environment

摘要

This paper presents a system that uses computational fluid dynamics to produce smoke,water,and other effects for traditioally animated filsm.THe system was used in over twenty scenes in the animated feature film the Prince of Egypt.Animators use images and animation sequences to drive tow-dimensional numerical simulatiosn of the time-dependent compressible Navier-Dtokes equations.For instance,images cna be sued to initialize temperature fields which cause dynmaic buoyancy-driven vortices to evolve.In additin to being image-driven,the system is unique in allowing for comperssibliyt of the fluid,and in its use of partia differential equations for tesxture mapping.