First experiment with Flip Fluids. The setting for this scene was very simple: in addition to the domain and the obstacles I only inserted an inflow object at the top of the stairs (to create the liquid) and an outflow object at the bottom of the stairs (to eliminate the liquid not visible to the camera) Calculation times with Ryzen 2700 and Gtx 760: 38 hours for liquid simulation (450 resolution) 40 hours for rendering with Cycles using only 100 samples and the super image denoiser addon Finally I also tried the dynamic paint to create the wetmaps Camera mapping with fspy addon Original photo https://pixabay.com/it/photos/citt%C3%A0-sporco-ny-park-stazione-2893850/ #blendersimulation #blenderanimation #blenderfluid #fluidsimulation Music: Black Bird by Kevin MacLeod Link: https://incompetech.filmmusic.io/song/3441-black-bird License: http://creativecommons.org/licenses/by/4.0/