Re: [Freetype] Stems not grid-fitted; missing some switch?

[David Turner]

Hello Christian,

  From the picture you sent, it seems that you're translating
  the glyph outlines by non-integer pixel position. Even when
  the glyphs are grid-fitted, this will result in the "fuzzy"
  text you're having..

  better check your text layout code..

Regards,

- David


Christian Campbell a écrit :
> 
> Please fill me in if I missed a step.
> 
> I'm trying to use FreeType to generate text (approximately)
> identical to Windows', which the FreeType site says it does. I
> built 2.0.5 on Solaris 8 with the
> TT_CONFIG_OPTION_BYTECODE_INTERPRETER macro defined, which to the
> best of my reading is the only step needed to enable the full
> featured rendering. The build obviously successfully enabled the
> TrueType bytecode interpreter because the text is much higher
> quality than under an otherwise identical build with the
> TT_CONFIG_OPTION_BYTECODE_INTERPRETER macro undefined which I
> played with earlier.
> 
> But I'm getting a lot of stems that are not grid-fitted, which
> grid-fitting is to my understanding one of the key features of
> proper TrueType rendering. Please see
> <http://www.cise.ufl.edu/~dcc/tmp/hello.gif> for an example of
> side-by-side text, the left from Windows 95 with Plus!
> font-smoothing (5-value anti-aliasing), and the right from
> gd-1.8.4 linked against my FreeType build, which is nice for
> having 9 values, but whose stems are awful. Both renderings used
> the selfsame TTF file. The font I used is in the same directory on
> the off-chance that anybody feels their trying to duplicate this
> would be helpful; although I also tried a number of other fonts
> from other sources with no more success in the area of stems.
> 
> My basic question is: Is there something else I need to do to
> enable grid-fitting under the TrueType bytecode interpreter?
> 
> Thank you much for your time,
> Christian Campbell
> 
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