Hi!
I'm trying to render text, using FreeType 2. My problem is in offsetting
each glyph with respect to their own origin. In this mail, with "offset", I
refer to what is called bearingX and bearingY in this
<http://www.freetype.org/freetype2/docs/tutorial/metrics.png> illustration.
I first render all glyphs, storing necessary metrics, then use the results
to render text.
Given an unsigned char c, this is how I render glyphs, and need to obtain
the correct offsets (C++):
FT_Face face;
if (!FT_Load_Char(face, c, 0)) {
if (!FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL)) {
if (!FT_Get_Char_Index( face, c )) continue;
// Set offset of glyphs accessing face->glyph here.
I have tried to use face->glyph->bitmap_left (and bitmap_top), and also
face->glyph->metrics.horiBearingX / 64.0f (and Y), but the results always
look arbitrary:
http://a.pomf.se/iudwvo.png And with inverted yoffset:
http://a.pomf.se/jlkngl.png
This <https://bpaste.net/show/4c7b4fa88e67> is how I render text at the
moment (no kerning yet). (Additional question: is width, height, xadvance,
yadvance, xoffset and yoffset all metrics I need to render text?)
On lines 27 and 28, you see how I apply the offset. size is the pixel size
of the font (note that I "normalize" the metrics by dividing by pixel size
in the first place).
Thanks in xadvance!
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