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Re: [ft-devel] ttfautohint: How to install
From: |
Werner LEMBERG |
Subject: |
Re: [ft-devel] ttfautohint: How to install |
Date: |
Mon, 20 Jun 2011 20:44:32 +0200 (CEST) |
>> Mhmm. Up to now I've *never* seen a font rendered with FreeType
>> which shows such a large deviation from the Windows font engine. I
>> believe that FreeType's output is quite trustworthy.
>
> heh. Really? Depends what you mean by 'large deviation' i guess. I
> only ever seem to see differences between Windows font rendering and
> the other OS's :)
Interesting. Could you give some examples? Are those problems
related to FreeType?
>> Maybe there are problems with my bytecode.
>
> Well - your bytecode seems to work fine for hinting under Freetype,
> but not under Windows GDI.
Actually, I've found a problem:
> You should probably look at the newest screenshots at
> http://code.newtypography.co.uk I tested Ubuntu Font & Droid Serif
> with the Windows' 'system font viewer' on XP and Win7, both with
> GDI-Cleartype. Some very glitchy stuff happens with the ttfauto
> hinted fonts at larger sizes - 36pts on Ubuntu Font, 48pts on Droid
> Serif. I have tested and replicated those glitches on different
> PC's so they are for real! :)
Using ftview, I see problems with FreeType also: The baseline is
ragged. And indeed, I've done an addition instead of a subtraction in
the bytecode, making the computation of blue overshoot values
incorrect. This is fixed now in the git repository; please update and
regenerate your test files! Maybe this change is sufficient to
improve the rendering with Windows GDI also.
> Must do some full waterfall tests to see what else is happening at
> other sizes. More testers and more eyes would be good too.
Indeed! This is another reason why your messages should be sent to te
ft-devel list.
> The rendering glitches seem to be specific to the GDI-Cleartype
> rendering, and absent (as far as i can see) from the new (FireFox4 &
> IE9) DirectWrite-Cleartype rendering.
Well, please report whether the current git gives better results.
Werner
- Re: [ft-devel] ttfautohint: How to install, (continued)
- Re: [ft-devel] ttfautohint: How to install, Dave Crossland, 2011/06/17
- Re: [ft-devel] ttfautohint: How to install, vernon adams, 2011/06/17
- Re: [ft-devel] ttfautohint: How to install, vernon adams, 2011/06/17
- Re: [ft-devel] ttfautohint: How to install, Werner LEMBERG, 2011/06/17
- Re: [ft-devel] ttfautohint: How to install, Dave Crossland, 2011/06/18
- Re: [ft-devel] ttfautohint: How to install, Werner LEMBERG, 2011/06/19
- Message not available
- Message not available
- Re: [ft-devel] ttfautohint: How to install, vernon adams, 2011/06/20
- Re: [ft-devel] ttfautohint: How to install, vernon adams, 2011/06/18
- Re: [ft-devel] ttfautohint: How to install, Werner LEMBERG, 2011/06/17
- Re: [ft-devel] ttfautohint: How to install, vernon adams, 2011/06/20
- Re: [ft-devel] ttfautohint: How to install,
Werner LEMBERG <=