i18n-bugs December 2012

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[Fedora-i18n-bugs] [Bug 856239] fuzzy font rendering (Liberation 2 regression)
by Red Hat Bugzilla 03 Dec '12

03 Dec '12

Product: Fedora https://bugzilla.redhat.com/show_bug.cgi?id=856239 --- Comment #124 from Mike FABIAN <mfabian(a)redhat.com> --- (In reply to comment #116) > looking at Mike screenshot, it is clean that hintfull makes sense when you > have sharp bytecode. Which is not case with the Liberation2. Yes, hintstyle=hintfull and autohint=false gives much sharper rendering for Liberation 1 but it has very little effect on Liberation 2. For me the differences in Liberation 2 between the byte code interpreter, the autohinter, and the hintstyle options are insignificant. There are some differences, but very tiny. Only the sharp byte code in Liberation 1 makes a big difference to me. -- You are receiving this mail because: You are on the CC list for the bug.

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[Fedora-i18n-bugs] [Bug 856239] fuzzy font rendering (Liberation 2 regression)
by Red Hat Bugzilla 03 Dec '12

03 Dec '12

Product: Fedora https://bugzilla.redhat.com/show_bug.cgi?id=856239 --- Comment #123 from Mike FABIAN <mfabian(a)redhat.com> --- (In reply to comment #121) > > Due to hintlight it does not use bytecode to its full strength and use subpixel rendering. I think that is the reason when we use above setting > > No, you can use both hintlight and hintfull with subpixel rendering. Yes. > When you use hintlight, with subpixel, you get the rainbow > effect. With hintfull you get excellent appearance. With hintfull, there is also a little “rainbow effect” when subpixel hinting is used. See my screenshot in comment#114, left side. Of course it is much less obvious then with the other options (hintmedium, hintslight, hintnone). But is still visible. For me, even this little bit of colours is too much already, I prefer the result in the screenshot in comment#115 on the left, i.e. sharp byte code hinting without subpixel hinting, only gray-scale. -- You are receiving this mail because: You are on the CC list for the bug.

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[Fedora-i18n-bugs] [Bug 856239] fuzzy font rendering (Liberation 2 regression)
by Red Hat Bugzilla 03 Dec '12

03 Dec '12

Product: Fedora https://bugzilla.redhat.com/show_bug.cgi?id=856239 --- Comment #122 from Mike FABIAN <mfabian(a)redhat.com> --- (In reply to comment #120) > (In reply to comment #119) > > > > I cannot see much differences between the different settings for > > liberation sans. > > Due to hintlight it does not use bytecode to its full strength and use > subpixel rendering. I think that is the reason when we use above setting > > http://pravins.fedorapeople.org/liberation/arial-sans2-sans1-arimo-testing2- > fedora18-subpixel-rendering.png All renders bit similar to each other. > Since the outline is same in fonts for all fonts (not tested Arail though) Yes, here all 3 fonts (Arial, Liberation Sans 1, Liberation Sans 2) look very similar because the byte code hinting is not used. All very fuzzy. > > No matter which settings are used, it never renders as sharp > > as liberation 1.07 with autohint=false and hintstyle=hintfull. > > Agree with this, below is image for it. Just compare it with above. > > http://pravins.fedorapeople.org/liberation/arial-sans2-sans1-arimo-testing2- > fedora18.png And here Arial and Liberation Sans 1 are very sharp, because the byte code is used and these have high quality byte code. Liberation Sans 2 sticks out here as much bolder and fuzzier because it does not have such high quality byte code. The results for using the byte code of Liberation Sans 2 are similar to using the autohinter which makes it likely that some automatic tool was used to generate the byte code for Liberation Sans 2 and that tool achieves similar results as the autohinter of freetype. -- You are receiving this mail because: You are on the CC list for the bug.

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[Fedora-i18n-bugs] [Bug 856239] fuzzy font rendering (Liberation 2 regression)
by Red Hat Bugzilla 03 Dec '12

03 Dec '12

Product: Fedora https://bugzilla.redhat.com/show_bug.cgi?id=856239 --- Comment #121 from Ilya <neptunia(a)mail.ru> --- > Due to hintlight it does not use bytecode to its full strength and use subpixel rendering. I think that is the reason when we use above setting No, you can use both hintlight and hintfull with subpixel rendering. When you use hintlight, with subpixel, you get the rainbow effect. With hintfull you get excellent appearance. Who told you that you cannot use hintfull with supbixel? -- You are receiving this mail because: You are on the CC list for the bug.

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[Fedora-i18n-bugs] [Bug 856239] fuzzy font rendering (Liberation 2 regression)
by Red Hat Bugzilla 03 Dec '12

03 Dec '12

Product: Fedora https://bugzilla.redhat.com/show_bug.cgi?id=856239 --- Comment #120 from Pravin Satpute <psatpute(a)redhat.com> --- (In reply to comment #119) > > I cannot see much differences between the different settings for > liberation sans. Due to hintlight it does not use bytecode to its full strength and use subpixel rendering. I think that is the reason when we use above setting http://pravins.fedorapeople.org/liberation/arial-sans2-sans1-arimo-testing2… All renders bit similar to each other. Since the outline is same in fonts for all fonts (not tested Arail though) > > No matter which settings are used, it never renders as sharp > as liberation 1.07 with autohint=false and hintstyle=hintfull. Agree with this, below is image for it. Just compare it with above. http://pravins.fedorapeople.org/liberation/arial-sans2-sans1-arimo-testing2… I have sent mail on fonts@, test@ and i18n@ for more input, lets see -- You are receiving this mail because: You are on the CC list for the bug.

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[Fedora-i18n-bugs] [Bug 873073] [si] Sinhala script rendering broken with harfbuzz 0.9.5 and 0.9.6
by Red Hat Bugzilla 03 Dec '12

03 Dec '12

Product: Fedora https://bugzilla.redhat.com/show_bug.cgi?id=873073 Parag <pnemade(a)redhat.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Fixed In Version| |harfbuzz-0.9.7-1.fc18 -- You are receiving this mail because: You are on the CC list for the bug.

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[Fedora-i18n-bugs] [Bug 873073] [si] Sinhala script rendering broken with harfbuzz 0.9.5 and 0.9.6
by Red Hat Bugzilla 03 Dec '12

03 Dec '12

Product: Fedora https://bugzilla.redhat.com/show_bug.cgi?id=873073 Parag <pnemade(a)redhat.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |pnemade(a)redhat.com --- Comment #8 from Parag <pnemade(a)redhat.com> --- I have pushed it already to stable and its now in f18 stable repo. -- You are receiving this mail because: You are on the CC list for the bug.

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[Fedora-i18n-bugs] [Bug 873073] [si] Sinhala script rendering broken with harfbuzz 0.9.5 and 0.9.6
by Red Hat Bugzilla 03 Dec '12

03 Dec '12

Product: Fedora https://bugzilla.redhat.com/show_bug.cgi?id=873073 Matthias Clasen <mclasen(a)redhat.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |MODIFIED --- Comment #7 from Matthias Clasen <mclasen(a)redhat.com> --- harfbuzz 0.9.7 is in updates-testing now -- You are receiving this mail because: You are on the CC list for the bug.

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[Fedora-i18n-bugs] [Bug 856239] fuzzy font rendering (Liberation 2 regression)
by Red Hat Bugzilla 03 Dec '12

03 Dec '12

Product: Fedora https://bugzilla.redhat.com/show_bug.cgi?id=856239 --- Comment #119 from Mike FABIAN <mfabian(a)redhat.com> --- (In reply to comment #110) > @Kevin yes, sorry i forgot to install freetype-freeworld package. > > [pravins@dhcp201-206 ~]$ xrdb -query > Xft.antialias: 1 > Xft.dpi: 96 > Xft.hinting: 1 > Xft.hintstyle: hintslight > Xft.lcdfilter: lcddefault > Xft.rgba: rgb > > I am getting better results. I cannot see much differences between the different settings for liberation sans. No matter which settings are used, it never renders as sharp as liberation 1.07 with autohint=false and hintstyle=hintfull. > pravins.fedorapeople.org/liberation/arial-sans2-sans1-arimo-testing2- > fedora18-subpixel-rendering.png > > We need this setting for Liberation2 > This blog is very useful > http://blog.andreas-haerter.com/2011/07/18/tune-improve-fedora-fonts- > typeface-ubuntu-like-sharp-fonts I don’t know why this guy thinks these settings make it sharper. Certainly the hintslight he suggests doesn’t make it any sharper than hintfull. And for Liberation2, the differences between these settings are minor anyway. -- You are receiving this mail because: You are on the CC list for the bug.

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[Fedora-i18n-bugs] [Bug 856239] fuzzy font rendering (Liberation 2 regression)
by Red Hat Bugzilla 03 Dec '12

03 Dec '12

Product: Fedora https://bugzilla.redhat.com/show_bug.cgi?id=856239 --- Comment #118 from Mike FABIAN <mfabian(a)redhat.com> --- Created attachment 656619 --> https://bugzilla.redhat.com/attachment.cgi?id=656619&action=edit liberation-sans-2-autohint=true-different-hintstyles-rgba=rgb.png And one more screenshot using Liberatin 2.00 using the autohinter. rgba=rgb hinting=true autohint=true <- i.e. *not* using the byte code always and then the results for hintstyle={hintfull,hintmedium,hintslight,hintnone} are compared. hintmedium and hintslight give identical results. hintnone is slightly fuzzier. hintfull is slightly sharper. But the differences are small, *all* of them are quite fuzzy. => using the autohinter, liberation sans 2.00 also never renders as sharp as liberation 1.07 with the bytecode interpreter and hintfull. No matter what settings are used for liberation sans 2.00, it will always render much fuzzier then liberation 1.07. comment#109, Kevin Kofler> And I wonder whether the hinting in comment#109, Kevin Kofler> CrosCore / Liberation 2 is the result of comment#109, Kevin Kofler> running ttfautohint or some other comment#109, Kevin Kofler> low-quality automated process. I also think this has likely been done by some automated process, I think byte code for very sharp rendering as in liberation 1.07 cannot be done automatically, it is a tedious manual process. -- You are receiving this mail because: You are on the CC list for the bug.

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i18n-bugs December 2012