Per Vognsen
An interesting example of parallel discovery: the zero memory widget (ZMW) library released in 2003 (discovered in 2001-2002) vs Casey's first presentation of immediate-mode UI in 2005 (discovered in 2002). I assume approximately no-one has heard of ZMW. https://perso.univ-lyon1.fr/thierry.excoffier/ZMW/zmw-0.2.4/zmw.html
Using the Zero Memory Widget library (ZMW 0.2.0)

Feb 14 at 4:49pmPhanpy
Show threadPer VognsenFeb 14
I can't remember if I first stumbled across ZMW when trying to find prior art via Google or if someone else (Won?) posted a link on the Molly Rocket forums but in any case I've definitely known about it since the mid to late 2000s. I was watching @ocornut's interview the other day and it got me thinking about the history again.
Show threadSharlock93Feb 14
@pervognsen @ocornut I learned about this in the dear imgui's resources list. Quite fun to know the history