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Earlier quoted context omitted.
Ghostty already supports shaders and effects like this.
It can only apply shader(s) to the current frame I think. To produce the crt ghosting you'd probably need access to the previous frame (not an expert).
People go so overboard on this stuff, the amount of ghosting on the DOS example is insane. I don’t want to spoils anyone’s fun but that’s not really what most screens looked like back then.
There were plenty of junk CRTs out there used for text only display with insane levels of persistence and other issues that lead to a very unique appearance. It's also sort of moot at this point. The existing CRTs out there that have this behavior have degraded over the years. No one makes new high persistence CRTs that I am aware of. So it's mostly down to our memory of them.
I actually have a flat panel that has over 2 decades degraded and now has some weird persistence going on.
People go so overboard on this stuff, the amount of ghosting on the DOS example is insane. I don’t want to spoils anyone’s fun but that’s not really what most screens looked like back then.
depends on how the brightness/contrast was set on the tube. if someone came in to a screen that was off and did not allow it enough time to warm up, it was common to see people adjust these knobs in the mornings. eventually, the tube would warm up, and things would just be too bright.
But I'm not surprised they don't go overboard with that in the emulators. They'd probably have to add PSE warnings if they did.
Side question, was there a reason early CRT screens were amber? Or was this perhaps maybe downstream of PLATO & the first plasma (and touch) screens being a Friendly Orange Glow? Recommending Friendly Orange Glow (Doer, 2018), btw. Fun read. https://www.penguinrandomhouse.com/books/545610/the-friendly...
People go so overboard on this stuff, the amount of ghosting on the DOS example is insane. I don’t want to spoils anyone’s fun but that’s not really what most screens looked like back then.
I think what bothers me most is the horizontal line that slowly moves across the screen every few seconds. It's an artifact of recording a CRT on film and doesn't occur when you look at a real monitor...
Side question, was there a reason early CRT screens were amber? Or was this perhaps maybe downstream of PLATO & the first plasma (and touch) screens being a Friendly Orange Glow? Recommending Friendly Orange Glow (Doer, 2018), btw. Fun read. https://www.penguinrandomhouse.com/books/545610/the-friendly...
Side question, was there a reason early CRT screens were amber? Or was this perhaps maybe downstream of PLATO & the first plasma (and touch) screens being a Friendly Orange Glow? Recommending Friendly Orange Glow (Doer, 2018), btw. Fun read. https://www.penguinrandomhouse.com/books/545610/the-friendly...
The color of the screens is related to the phosphor used to coat the back of the screen, which is excited to glow by the electron beam. According to wiki, amber was used as an "eye-friendly" ergonomic color for similar reasons we use blue blocking filters today.
Not quite this extreme, but I usually use the old Sun console font in my terminal windows, because I'm an old fart and it makes me happy. Someone at work just the other day looked at my screen and said, "What the heck is wrong with your terminal window???"
People go so overboard on this stuff, the amount of ghosting on the DOS example is insane. I don’t want to spoils anyone’s fun but that’s not really what most screens looked like back then.
It's almost like a caricature of a CRT. I can see the novelty, but hope that people aren't lead to believe monitors looked like this. I think what bothers me most is the horizontal line that slowly moves across the screen every few seconds. It's an artifact of recording a CRT on film and doesn't occur when you look at a real monitor...