Hey y’all, a while back I worked on a little semi-dynamic waterfall function in UE4, & recently I went through and cleaned some stuff up in it & included an example lava river material. It’s free on Github if you’re interested. Cheers!
https://github.com/hippowombat/UE4_DWF
Resources:
Distance field intersection glow mask & flow-map stuff:
https://forums.unrealengine.com/community/work-in-progress/47825-distance-field-touch-bend
https://forums.unrealengine.com/development-discussion/rendering/47456-distance-field-flow-map
Depth capture info that helped me fix weird seam-clipping:
http://www.jmbroderick.design/2019/11/stylized-waterfall-fx-with-flow.html