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Re: [ft-devel] Autohinter: stem darkening, first rough prototype
From: |
Werner LEMBERG |
Subject: |
Re: [ft-devel] Autohinter: stem darkening, first rough prototype |
Date: |
Mon, 24 Aug 2015 06:06:43 +0200 (CEST) |
>> I haven't yet looked closely at the new code, but I think that the
>> original one in function `cf2_computeDarkening' (in file
>> `cf2font.c') is quite straightforward – and it is well
>> commented :-)
>
> I do not get why this function should be piecewise linear, rather
> than just linear. Why can't we just use something like this?
>
> darkenAmount = 0.5 pixels - ( scaledStem / 4 )
Dave Arnold explained this to me some years ago. However, I no longer
can remember why Adobe introduced this feature.
Dave, can you please tell us the reason (again)?
Werner
- [ft-devel] Autohinter: stem darkening, first rough prototype, Nikolaus Waxweiler, 2015/08/23
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Alexei Podtelezhnikov, 2015/08/23
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Werner LEMBERG, 2015/08/23
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Alexei Podtelezhnikov, 2015/08/24
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype,
Werner LEMBERG <=
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Dave Arnold, 2015/08/25
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Alexei Podtelezhnikov, 2015/08/26
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Dave Arnold, 2015/08/26
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Werner LEMBERG, 2015/08/26
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Behdad Esfahbod, 2015/08/26
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Werner LEMBERG, 2015/08/27
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Alexei Podtelezhnikov, 2015/08/27
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Werner LEMBERG, 2015/08/27
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Alexei Podtelezhnikov, 2015/08/27
- Re: [ft-devel] Autohinter: stem darkening, first rough prototype, Nikolaus Waxweiler, 2015/08/27