Algorithm for virtual reality

POV-Ray is a freeware, stand-alone, world-class renderer that creates three-dimensional photo-realistic images taking as input a text file with the scene described in a script language known as POV-Ray scene description language (SDL). Image synthesis languages like POV-Ray do not give detailed description of the surfaces of the objects they generate, and therefore it is quite difficult to use them for engineering computations. Rather than trying to solve the problem of data translation, we propose to apply the fictitious domain method in the numerical solution. We explain what the difficulties are and give some solutions with an illustration of a finite element computation for a three-dimensional acoustic scattering problem. Bishop3D is an interactive modeler and animation tool designed and built to work with POV-Ray.