there was some water effect example on board iirc it had some sort of ripples or waves effect, but i cannot seem to find it.

if anyone remember, then please post a link.

Was it this one?
https://board.flatassembler.net/topic.php?p=221768#221768

nope, see attachment.

after half an hour or so of reversing, i found the algorithm used in the demo; will create a fasm demo whenever i find time.

i know for sure something similar was posted, or at least mentioned or linked to external source in asm. (likely it is fasm not masm)

after another half an hour or so, i understood most of the functions.

i also spent another hour on a different software that has same effect, compared the code for both software, and their code was 90% identical.

so i figured out it is probably well known algorithm, and yes it is 25 years old.
(1999)
http://freespace.virgin.net/hugo.elias/graphics/x_water.htm
requires wayback machine.

the two software as i mentioned have very identical code and flow, both are very likely based on this open source project.
https://github.com/TortoiseGit/TortoiseGit/blob/master/src/Utils/MiscUI/WaterEffect.cpp
(i really dont like how they stole it and copyright it under their name, F* who cares anyway)

and this project is based on at minimum 3-4 other sources i have digged from 1999-2001.

based on what i have, the original source code (which every other water effect is based on) is MFC cpp from 1999 then ported to pascal less than 1 month later.

and everyone else made their own unique version apparently, i mean like most variations change 3-5 lines of code at most, rarely more than that.