Re: [ft-devel] [ft] ttfautohint 0.4 has been released

[Infinality]

Hi Vernon,

I've achieved some results by selectively playing with the "dist" value 
in af_latin_compute_stem_width() in aflatin.c.  The problem with doing 
this though is the lack of diagonal hinting in the autohinter.  Things 
like W and A can start looking really thin when you force stems to 
something like 1 pixel wide.  I would LOVE to see diagonal hinting get 
implemented, because it would really improve the quality of the 
autohinter.  I'd also be interested to see if there is some sort of 
official answer to your question, as I'd certainly make use of it in my 
patchset.  Currently I use a combination of emboldening, gamma 
correction, alignment and "dist" manipulation to make thinner fonts 
render in a more readable way.  It would be nice to have one way to do it!

Thanks,
Erik
(Infinality)


On 10/27/2011 11:05 AM, vern adams wrote:
> Thanks Werner.
> I will test this tonight :)
>
> Also - i have noticed ttfautohint has limitations when it comes to instructing 
> very light weighted fonts.
> The autohinter is creating instructions that produce much too thin stems. The 
> uniformity of the stems seems good :) but they are simply too thin and 
> disappear at below 18-16 px.
> Could there be a way to set the autohinter to impose a minimum size of stem 
> widths, for example??
>
> I will post you screenshots later of the issue.
>
> -v
>
>
> On 27 Oct 2011, at 16:52, Werner LEMBERG wrote:
>
> > ttfautohint 0.4 has been released.  If you have had rendering problems
> > on Apple computers, please try this version.  Theoretically, those
> > issues should no longer be there.
> >
> > It is available from
> >
> >     http://savannah.nongnu.org/download/freetype/
> >
> > or
> >
> >     http://sourceforge.net/projects/freetype/files/ttfautohint
> >
> > Enjoy!
> >
> >
> >    Werner
> >
> >
> > PS: Downloads from savannah.nongnu.org will redirect to your nearest
> >     mirror site.  Files on mirrors may be subject to a replication
> >     delay of up to 24 hours.  In case of problems use
> >     http://download-mirror.savannah.gnu.org/releases/
> >
> >
> > ----------------------------------------------------------------------
> >
> >
> > This project provides a library which takes a TrueType font as the input,
> > remove its bytecode instructions (if any), and return a new font where all
> > glyphs are bytecode hinted using the information given by FreeType's
> > autohinting module.  The idea is to provide the excellent quality of the
> > autohinter on platforms which don't use FreeType.
> >
> > The library has a single API function, `TTF_autohint'; see
> > `src/ttfautohint.h' for a detailed description.  Note that the library
> > itself won't get installed currently.
> >
> > A simple command-line interface to the library is the demo program
> > `ttfautohint'; after compilation and installation, say
> >
> >   ttfautohint --help
> >
> > for usage information, or say
> >
> >   man ttfautohint
> >
> > to read its manual page.
> >
> >
> > ----------------------------------------------------------------------
> >
> >
> > New in 0.4:
> >
> > * The bytecode has been changed to `create' twilight points.  This should
> >   avoid rendering artifacts on some platforms.
> >
> > _______________________________________________
> > Freetype-devel mailing list
> > address@hidden
> > https://lists.nongnu.org/mailman/listinfo/freetype-devel
>
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