Hi Theppitak,

Quoting Theppitak Karoonboonyanan (2020-12-24 10:49:07)
> On Tue, Jun 9, 2020 at 12:51 AM Jonas Smedegaard <[email protected]> wrote:
> 
> > fonts-tlwg are provided as both Truetype and Opentype,
> > but package descriptions lack any mention of when either format is 
> > more suitable.
> >
> > Maybe Truetype fonts include hinting omitted from Opentype fonts.
> > Maybe Opentype fonts include feature sets lacking in Truetype fonts.
> > Maybe they are technically equal but consuming applications vary
> > in their support for accessing all features of either format.
> >
> > Please add mention of which format is better when.
> 
> They are supposed to provide the same typographical features,
> except for the underlying CFF and TTF glyph formats.
> 
> I'm about to add this paragraph to 'fonts-thai-tlwg' package 
> description:
> 
>  Every font in this package is provided in TrueType and OpenType 
>  formats for users to choose to suit their needs. Both formats are 
>  maintained to provide the same glyph set, glyph design, and 
>  typographical features, except that curves and hints are defined in 
>  CFF format for the OpenType version, and in TTF format for the 
>  TrueType version.
> 
> Do you think it's sufficient? Or should I try to evaluate the current 
> quality of both formats as rendered by FreeType?
> 
> To my personal taste, the OpenType version used to be inferior, until 
> the FreeType CFF rendering improvement was contributed by Adobe. And 
> now I prefer the OpenType version personally. The TrueType hinting, 
> however, is based purely on FontForge auto-instruction, no manual 
> tuning.

I think your proposed text is great!

I don't think it is suitable to include info on how well each each curve 
formats are rendered - such text belong at the various renderers (most 
notably libfreetype, but maybe also libSDL and others), and vary as 
those renderers evolve and with how they are used.


Thanks!

 - Jonas

-- 
 * Jonas Smedegaard - idealist & Internet-arkitekt
 * Tlf.: +45 40843136  Website: http://dr.jones.dk/

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