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Re: [ft-devel] Ttfautohint and light stem weights

From: Infinality
Subject: Re: [ft-devel] Ttfautohint and light stem weights
Date: Mon, 21 Nov 2011 12:37:47 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20110930 Thunderbird/7.0.1

I'm not sure how much control you get with GDI, but the only way I've found very thing fonts to render nicely is to use a technically accurate hinting (i.e. essentially Freetype slight hinting, which will make light horizontal stems be gray when less than 1px tall), and then run post-filters on it.  I'm pretty sure this can be accomplished with just the autohinter though-  It's a matter of making it better deal with thin stems.  I think the function that modifies "dist" based on hinting strategy would need more information about what it's hinting though, and a minimum distance would have to be set appropriately.  I'd like to figure this out, because what I'm doing now with post-filtering is a hack, even though it looks nice.

Here's my result (basically freetype-slight hinting, with various post-filtering):

On 11/21/2011 06:13 AM, vern adams wrote:
Hi Werner,

I have used Lato Light and Lato Hairline for these new tests and will email you those 2 fonts for testing.
They are also freely available from
for anyone else wishing to test.

many thanks


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