This code computes the smooth equivalent medium of any (meshable) geological model for the elastic wave equation. The upscaling method behind the code is the non-periodic homogenization. This method asks to solve an elastostatic problem, which is achieved using a tetrahedral Finite Element Analysis. The result is then smoothed according to the minimum wavelength to be propagated. The obtained medium usually is anisotropic; it can be used in any wave equation solver handling anisotropic heterogeneous media.