Font rendering in F13

Matthew Miller mattdm at
Wed May 26 18:15:48 UTC 2010

On Wed, May 26, 2010 at 07:30:56PM +0200, Martin Sourada wrote:
> Depends on the criteria you use. The "with bytecode" version has better
> kerning, better shapes, better flow, but is blurry (yeah, without

Not just blurry, though -- awkwardly blurry. At screen resolution, in fact,
I think it's pushing it to even say that the blurriness makes better shapes
-- there's not enough pixels to make that work. The font has no bytecode, so
it's not being hinted.

> But generally, if font looks bad hinted when using BCI, it's most likely
> a bug in font, but when BCI is not present we need to fall back to
> autohinter, not just turn off the hinting.

Absolutely. I'm not opposed to the BCI, just opposed to failing to autohint
non-bytecoded glyphs when the feature is enabled.

Matthew Miller <mattdm at>
Senior Systems Architect -- Instructional & Research Computing Services
Harvard School of Engineering & Applied Sciences

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