> The 'final image' is simply the ttfautohint instructions with the > addition of links (double links work best in this instance). I did > no extra hinting from fontlab - [...] > > [...] if i look at the same font in FontForge's Gridfitmode, then i > don't see the egging issue at all.
Exactly! Such a big deviation between the rendering results indicates a severe problem IMHO. The only possible explanation I have so far is that the MS Windows rasterizer never sees the IUP[y]. It's the last instruction in the `fpgm' table, only followed by a final ENDF. Maybe I've somehow incorrectly implemented the generation of this SFNT table, but ttx doesn't show any error, and a round-conversion gives the same size and checksum of the `fpgm' table... Just to be sure that an incorrect `fpgm' size isn't the problem I ask you to try the attached font. With FontForge, I've stripped off all glyphs but uppercase `O', then I've disassembled it with ttx, omitting the `FFTM', `GDEF', `GPOS', and `GSUB' tables, then added a dummy function at the end of the `fpgm' table to make it bigger, and finally assembled it again with ttx. Werner
Ubuntu-R-TA-only-O.ttf
Description: Binary data
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