Free Houdini HIP: FLIP Surface Tension Demystified Setup (Vu Pham)

Overview

Vu Pham's showcase of realistic trickling rivulets, droplets and wetness demonstrates what the FLIP solver can do at any scale, combining surface tension, tiny droplets, procedural rivulets and a sim-to-meshing pipeline with VEX. The free Houdini file linked from the video is the basic FLIP surface-tension setup from his Medium article Houdini FLIP Surface Tension Demystified, not the full rivulet scene shown in the video.

It is available on Gumroad by choosing the free $0 version, while the fill-hole stitching version costs $36. A focused reference for getting believable small-scale water behaviour out of FLIP.