WVTICs generates glass-like initial conditions for Smoothed Particle Hydrodynamics. Relaxation of the particle distribution is done using an algorithm based on Weighted Voronoi Tesselations; additional particle reshuffling can be enabled to improve over- and undersampled maxima/minima. The WBTICs package includes a full suite of analytical test problems.
https://ui.adsabs.harvard.edu/abs/2019arXiv190711250A , http://adsabs.harvard.edu/abs/2017MNRAS.471.4587D