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Hacking with Style: TrueType VT220 Font (2009)

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Re: Hacking with Style: TrueType VT220 Font (2009)

#22
post #5

I used to love this font but the fake scanline effect was eyehurty after a while. DEC Terminal Modern is the same font with a nice vector look that won't interfere with the scanlines when you use it in cool-retro-term.

https://www.dafont.com/dec-terminal-modern.font Does this have any particular size it's supposed to be used at?

The source site at vtxemu.com has been squatted though :( Any other source to download it?

Re: Hacking with Style: TrueType VT220 Font (2009)

#23

Nice font but I wish it didn't consist of lines like that.

That’s more or less how it shows on the terminal screen. Scanlines were part of the experience.

You can manually trace over the ROM bitmaps and make the contour - I did that with my 3270 font.

Re: Hacking with Style: TrueType VT220 Font (2009)

#26
post #6

A lot more information here, including how the phosphor decay is part of the font and you won't get the right appearance if you don't take it into account: https://www.masswerk.at/nowgobang/2019/dec-crt-typography

With CSS (text-shadow to be exact) you can get pretty close, here is my shot at it: https://codepen.io/ivanca/pen/oNPZMLx

Here's the "workbench implementation" mentioned in the blog post (too much blur/bleed), using a character generator of its own:

https://www.masswerk.at/rterm/VT/

And a rather fancy version of the same thing: https://www.masswerk.at/rterm/VT/fancy.html

Re: Hacking with Style: TrueType VT220 Font (2009)

#27

Earlier quoted context omitted.

https://www.dafont.com/dec-terminal-modern.font Does this have any particular size it's supposed to be used at?

The source site at vtxemu.com has been squatted though :( Any other source to download it?

On the site linked above, over on the right-hand side of the page there's a "download" button that still works.

Re: Hacking with Style: TrueType VT220 Font (2009)

#28
post #11

MAME will actually emulate a VT240. We spend a bundle, both on Charon VAX emulation and Bluezone Rocket terminal emulation. We used to run the Reflections terminal emulator, but that is up to $500/seat. I was actually looking for a functional UTS-20 emulator for our OS2200, but that is another story. MAME will tie the rs232 to an outgoing socket, and I ran it over stunnel to login to my VAX VMS. It was a really slow…

how well did it work?

It was a little slow.

No text cut and paste.

The baud rate actually has to be set correctly in the firmware before the connection works.

The command line to invoke for the IP address 1.2.3.4 port 23 is:

  mame -rp . vt240 -window -nothrottle -host null_modem -bitb socket.1.2.3.4:23
These are some useful articles that I read in getting it working.

http://www.bitsavers.org/pdf/dec/terminal/

https://github.com/larsbrinkhoff/terminal-simulator/issues/1

https://www.mail-archive.com/simh@trailing-edge.com/msg09086...

https://forums.bannister.org/ubbthreads.php?ubb=showflat&Num...

https://simh.trailing-edge.narkive.com/qgzCvrl8/dec-vt-emula...

Re: Hacking with Style: TrueType VT220 Font (2009)

#29
post #10

Earlier quoted context omitted.

I do wonder if a sufficiently clever person could coerce OpenType's Variable Font extension to simulate phosphor behaviour.

There was a time when blurred fonts were some of a (small) hype. The tricky part is that phosphor response isn't linear, but sinusoidal, and that you had to scale this with font size… (You could make this an axis with variable fonts, though.)

Since the VF extension requires a state machine that can modify the font, it might be able to accomplish that, but my very quick read of the spec didn't let me grasp whether the SM executes once, or whether you can run it repeatedly.

(I am not a sufficiently clever person, obviously, and you probably wouldn't want to burn cycles on simulating that anyway. Nevertheless.)

Re: Hacking with Style: TrueType VT220 Font (2009)

#30

Earlier quoted context omitted.

The source site at vtxemu.com has been squatted though :( Any other source to download it?

On the site linked above, over on the right-hand side of the page there's a "download" button that still works.

I have a _decterm.ttf that is larger (237400 bytes) and newer (Mar 29 2019) than the one at dafont.com, but do not remember where I got it from.
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