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Re: [ft] Bytecode hinter producing bad results, seems to be a regression
From: |
Werner LEMBERG |
Subject: |
Re: [ft] Bytecode hinter producing bad results, seems to be a regression |
Date: |
Sat, 01 Jan 2011 15:43:18 +0100 (CET) |
> check your font whether my assumption is correct. I only have
> `Helvetica Neue LT Pro 65 Medium' version 001.000 (from 2003), but
> this is an OpenType font with CFF outlines.
Accidentally, I've also found `Helvetica Neue LT Com 65 Medium' (2.01
from 2006). My assumption was correct: The `gasp' table of this font
asks for monochrome rendering in the range 9-15ppem.
However, I see strange hinting for certain ppem values. For example,
the monochrome version of `h' at 11ppem misses the left stem, or the
`C' at 10ppem lacks the middle part (see attached image). I *can't*
believe that this is FreeType's fault, given that those strange
rendering results are mainly due to DELTA instructions which shifts
certain points at certain ppem values by a fixed amount. Something's
is going on here, and it would be interesting to know more details.
Do you have a chance to check monochrome rendering of this particular
font on Windows?
Werner

- Re: [ft] Bytecode hinter producing bad results, seems to be a regression,
Werner LEMBERG <=
- Re: [ft] Bytecode hinter producing bad results, seems to be a regression, Vinnie, 2011/01/01
- Re: [ft] Bytecode hinter producing bad results, seems to be a regression, Werner LEMBERG, 2011/01/01
- Re: [ft] Bytecode hinter producing bad results, seems to be a regression, Vinnie, 2011/01/01
- Re: [ft] Bytecode hinter producing bad results, seems to be a regression, Werner LEMBERG, 2011/01/01
- Re: [ft] Bytecode hinter producing bad results, seems to be a regression, Vinnie, 2011/01/01
- Re: [ft] Bytecode hinter producing bad results, seems to be a regression, Werner LEMBERG, 2011/01/02
- Re: [ft] Bytecode hinter producing bad results, seems to be a regression, Stuart Longland, 2011/01/02
- Re: [ft] Bytecode hinter producing bad results, seems to be a regression, Werner LEMBERG, 2011/01/03