bugThe FreeType Project - Bugs: bug #43440, glyph uni636E in msyh.ttf heavily...


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bug #43440: glyph uni636E in msyh.ttf heavily distorted with subpixel hinting

Submitter:  Werner LEMBERG <wl>
Submitted:  Sun 19 Oct 2014 08:45:25 PM UTC
Severity:  3 - Normal Item Group:  None
Status:  Confirmed Privacy:  Public
Assigned to:  infinality Open/Closed:  Open
Planned Release:  None

Sun 19 Oct 2014 08:45:25 PM UTC, original submission:  

As discussed in thread


there are severe rendering problems with subpixel hinting.

Attached are the results of

  ftview -e unic -f 25454 14 msyh.ttf

using the current git version, with ftview's `H' key to switch between v35 and v38 rendering.  As can be seen, in ClearType mode the first glyph gets heavily distorted.

For reference, I'm also attaching a VTT rendering image of the problematic glyph as sent by the OP to the mailing list.

Werner LEMBERG <wl>
Group administrator


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attached Files
file #32299:  U+636E-v35.png added by wl (2KiB - image/png)
file #32300:  cleartype_VTT.png added by wl (139KiB - image/png)
file #32301:  U+636E-v38.png added by wl (2KiB - image/png)


Depends on the following items: None found

Items that depend on this one: None found


Carbon-Copy List
  • -email is unavailable- added by wl (Submitted the item)
  • -email is unavailable- added by wl

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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2014-10-19 wl Attached File- Added U+636E-v35.png, #32299
        Attached File- Added cleartype_VTT.png, #32300
        Attached File- Added U+636E-v38.png, #32301
        Carbon-Copy- Added datao zhang <dataozhang@hotmail.com>

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