Wow, had no idea my tastes in CRT shaders would spark such debate, while I haven’t used a real CRT in years. My memory of a very old Sony my family had (wood panels and all, yeah I’m old), expedited such traits. I actually remember as a kid opening the back of the thing (had no idea how dangerous that was at the time) to tinker around and “tune” it up a bit, which I actually managed to do with some success.
Anyhoo, at the end of the day regardless of how “real” it is or not means little to me, as to my eyes deconvergence can do wonders for what are in all honesty (especially by today’s standards) harsh pixel graphics. Retro games are awesome and having many ways to enhance their appearance, is the freakin’ berries. I say more choices not less and of course you do you.
Here’s a few more examples of what Mattias can do. ^^
While this shader does tend to lean a bit on the dark side, the games have never looked better to my eyes. ^^