Sun 08 Feb 2015 07:45:48 PM UTC, comment #4:
Made these changes. In SVN.
Хо (Serif italic faces) The kerning entries letters similar to Х was missing in the Х. Just put it back in.
Хр (Serif normal) There was no kerning entry. Added one, pulled several letters together.
Об (Serif Bold for Serbian) Made a special lookup for these.
њу (Serif normal) Pushed them a bit closer. Any closer and it will look like the у is biting the њ.
These are good catches, Rosella. Pardon the long delay, again.
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Sun 08 Feb 2015 07:06:17 PM UTC, comment #3:
Rosella,
My apologies! I just noticed that I hadn't responded to this report! I have no explanation, except maybe that I confused the messages with some other report.
Regarding kerning generally: This is very touchy of course, and in large degree a matter of taste.
Practically, I try to balance legibility on modern screens with modern font rendering (Harfbuzz being the main target renderer), with rendering on printed page. Somehow the spacing should appear uniform. It is a psycho-sensory effect, that is very difficult to achieve
Rule of thumb: for most letters in serifed fonts, the serifs should not overlap. If serifs of two letters are adjacent to one another, I put a space about the height of the serif between the letters. When a round part of a letter comes next to a letter with a vertical line, I move them together, but usually not so that one letter intrudes into the serifs of another.
Exceptions are deeply angled letters such as V beside, say, A.
Here the letters have to be moved well into one another's "air space" to avoid a gap appearing between them. I also try to keep a stem-width between any two horizontal stems. And so on...
All that said,
- Your example in file 28854 (ијс) looks about right to me. The hook on the j has to go beneath the previous letter... in this case, just beneath its serif. The j and the c follow the rule of vertical against round, that a stem's width should be maintained.
- 28767 (Хо) ... I have to say, the space is more than I like. I'll look at it.
- 28768 (њу). Well, It follows some rules, namely that stems of the њ should extent no further than serifs of the у. But in this case, maybe it leaves a gap. I'll look at it.
- 28707 (Об) this is round-to-round. In the normal font, the rule is stem's width. In the bold, it should be closer. I'll play with it.
- 28709 (Хр) Once again, it follows some rules, which maybe should be bent a little.
- 28710 (бл) These are as close as I'm comfortable with. There are some letters that just require more air between them than others -- it's the flip-side of making the spacing uniform -- it mustn't be too uniform.
Thanks!
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Tue 30 Jul 2013 06:49:33 PM UTC, original submission:
As per your request, I've opened a new thread concerning Cyrillic kerning.
1. Обнова: this is Bold and the space between CAPITAL LETTER O and SMALL LETTER BE is excessive.
2. облику: I know we've already discussed it in the previous threads, but I think the space between SMALL LETTER BE and SMALL LETTER EL still needs some tweaking: isn't there too much space between them?
3. Хронографија: the space between CAPITAL LETTER HA and SMALL LETTER ER is too great: compare with the tighter space (I think) in the bold style in the section title just above.
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