From: James Cloos <cloos@jhcloos.com>
Cc: miles@gnu.org
Subject: Re: Antialiased text on X11
Date: Wed, 30 Mar 2005 21:42:34 -0500 [thread overview]
Message-ID: <m3wtrobko5.fsf@lugabout.cloos.reno.nv.us> (raw)
In-Reply-To: <fc339e4a0503291450d776091@mail.gmail.com> (Miles Bader's message of "Wed, 30 Mar 2005 07:50:06 +0900")
>>>>> "Miles" == Miles Bader <snogglethorpe@gmail.com> writes:
Miles> [I didn't change anything in the fontconfig setup so it seems
Miles> the default settings -- which are presumably aimed at white
Miles> backgrounds -- deals pretty well with black backgrounds too.]
It does depend on the font and whether you are using the byte code
interpreter. The well-instructed fonts tend to use single-pixel
wide stems up to circa 16–18 ppem. The auto-fitter, however,
tends to result in wider stems. Xft’s rgba filter is tuned for
light backgrounds; single-pixel stems tend to drop out when it is
used with dark backgrounds.
So, if you are using sub-pixel rendering, the BCI and a well
instructed font you will see *much* better text with a light
background than with a dark. But if you are using fonts w/o
quality instructions — whether poorly-instructed fonts, non-
ttf fonts, or freetype compiled w/o the interpreter — and/or
greyscale rather than sub-pixel then light on dark should be
almost as good as dark on light text.
Or at least that is what I saw back when I tested it.
-JimC
--
James H. Cloos, Jr. <cloos@jhcloos.com>
next prev parent reply other threads:[~2005-03-31 2:42 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-10 21:45 Antialiased text on X11 James Cloos
2005-03-10 22:25 ` Stefan Monnier
2005-03-10 23:15 ` Han Boetes
2005-03-11 4:58 ` Jan D.
2005-03-18 21:21 ` Ali Ijaz Sheikh
2005-03-18 22:39 ` Drew Adams
2005-03-19 22:45 ` The WHY of Xft [was: Re: Antialiased text on X11] James Cloos
2005-03-19 23:47 ` Miles Bader
2005-03-20 16:49 ` The WHY of Xft James Cloos
2005-03-20 22:30 ` Miles Bader
2005-03-21 14:24 ` David Hansen
2005-03-21 16:12 ` James Cloos
2005-03-21 0:32 ` Kenichi Handa
2005-03-19 0:59 ` Antialiased text on X11 Miles Bader
2005-03-19 6:27 ` Jan D.
2005-03-19 7:39 ` Miles Bader
2005-03-19 16:31 ` Stefan Monnier
2005-03-19 16:53 ` Han Boetes
2005-03-20 11:51 ` Jan D.
2005-03-19 21:41 ` Miles Bader
2005-03-20 13:15 ` Jan D.
2005-03-20 22:51 ` Jan D.
2005-03-22 23:44 ` Miles Bader
2005-03-23 2:30 ` Miles Bader
2005-03-23 17:50 ` Jan D.
2005-03-25 21:40 ` Miles Bader
2005-03-26 8:13 ` Jan D.
2005-03-29 10:52 ` Geoffrey J. Teale
2005-03-29 11:28 ` Miles Bader
2005-03-29 12:24 ` Geoffrey J. Teale
2005-03-29 18:24 ` Henrik Enberg
2005-03-29 22:50 ` Miles Bader
2005-03-31 2:42 ` James Cloos [this message]
2005-03-31 4:22 ` Miles Bader
2005-03-29 19:28 ` Jan D.
2005-04-01 8:15 ` Miles Bader
2005-04-01 16:09 ` Jan D.
2005-03-22 12:45 ` Oliver Scholz
2005-03-22 14:21 ` Stefan
2005-03-22 14:29 ` Oliver Scholz
2005-03-22 15:17 ` David Kastrup
2005-03-10 23:19 ` James Cloos
2005-03-11 9:20 ` Geoffrey J. Teale
2005-03-11 15:13 ` Jan D.
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