Animation for shutting down #564

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2019-12-15T19:58:16+01:00

haarp commented

2019-12-15 19:58:16 +01:00

(Migrated from github.com)

Hello,

loving this! Here's a random idea, how about an animation when you shut down the terminal? Most CRTs back in the day had a particular and noticeable effect when the electron beam stopped being deflected and returned to the middle of the screen when the monitor was being shut off.

Thanks :)

Hello, loving this! Here's a random idea, how about an animation when you shut down the terminal? Most CRTs back in the day had a particular and noticeable effect when the electron beam stopped being deflected and returned to the middle of the screen when the monitor was being shut off. Thanks :)

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alexmyczko commented

2020-01-29 21:40:57 +01:00

(Migrated from github.com)

ah it was called degauss

https://i.imgur.com/TmLUNAi.gif

ah it was called degauss https://i.imgur.com/TmLUNAi.gif

👍 1

highno commented

2020-11-07 09:36:09 +01:00

(Migrated from github.com)

Degauss is something different. It was used to degauss (demagnetize) the (electro-)magnets responsible for steering the electron beam. If there were some magnetized parts, this would lead to distractions mostly in colors (the beam would not hit the correct colorized phosphor spots).
The thread opener seems to want that "Shotdown"-effect where the beam still gets all color and brightness information, but the beam steering magnets stop working slowly, so the picture gets growingly faster very small to finally disassemble into a small bright spot in the middle of the screen. Since the electron beam itself was also shut down, while getting smaller the picture also faints away but slower than the deflection magnets, so that small bright spot is the rest of the beam. It also disappears quickly by fading into black.
I hope this visualized the effect better. I haven't looked for a video showing that effect.

Degauss is something different. It was used to degauss (demagnetize) the (electro-)magnets responsible for steering the electron beam. If there were some magnetized parts, this would lead to distractions mostly in colors (the beam would not hit the correct colorized phosphor spots). The thread opener seems to want that "Shotdown"-effect where the beam still gets all color and brightness information, but the beam steering magnets stop working slowly, so the picture gets growingly faster very small to finally disassemble into a small bright spot in the middle of the screen. Since the electron beam itself was also shut down, while getting smaller the picture also faints away but slower than the deflection magnets, so that small bright spot is the rest of the beam. It also disappears quickly by fading into black. I hope this visualized the effect better. I haven't looked for a video showing that effect.

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Reference: seeseemelk/cool-retro-term#564