On 06/05/2012 01:56 AM, Werner LEMBERG wrote: > >> I was playing with Unicode box characters, and noticed that DejaVu >> Sans creates the glyph for ▟ out of three quadrant boxes. At >> different sizes I can see very noticeable seams where the sub-glyphs >> meet. I thought FreeType would handle these cases better, but seems >> like I'm wrong. Any ideas? Does FreeType combine all contours >> together and rasterize them in one pass, or raster them separately >> and combine? > > They are rasterized in a single pass. However, the DejaVu font > doesn't contain the necessary bytecode to properly handle the rounding > issues which inevitably happen if subglyphs are combined -- in ftview, > press key `f' to force autohinting, and you won't see seams. I've > just confirmed that exactly the same issue is present with the Windows > rasterizer, so it's not a FreeType problem.
Thanks Werner for looking into this! Great time for asking then: are subglyph positions rounded as part of the hinting process? behdad > Of course, a much simpler (and probably even better) solution is to > avoid subglyphs if they touch at longer lines. > > > Werner _______________________________________________ Freetype-devel mailing list Freetype-devel@nongnu.org https://lists.nongnu.org/mailman/listinfo/freetype-devel