“Computational fluid dynamics in a traditional animation environment” by Witting

  • ©Patrick Witting




    Computational fluid dynamics in a traditional animation environment



    This paper presents a system that uses computational fluid dynamics to produce smoke, water, and other effects for traditionally-animated films. 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 two-dimensional numerical simulations of the time-dependent compressible Navier-Stokes equations. For instance, images can be used to initialize temperature fields which cause dynamic buoyancy-driven vortices to evolve. In addition to being image-driven, the system is unique in allowing for compressibility of the fluid, and in its use of partial differential equations for texture mapping.


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