Discussions about the use of Realflow
To be 200% fair here... the "FliPFluids" is a commercial plugin for Blender ( https://blendermarket.com/products/flipfluids ), similar to what Oldcode showed for Lightwave. Nevertheless, Blender has also non-commercial fluid options and can't be beaten at this price level. Blender now is anyway the best option for hobbyists while more and more commercial software is available only with subscriptions.
RF10.5 standard + RFC4D3, Mac&Windows