GLyphy is a signed-distance-field (SDF) text renderer using OpenGL ES2 shading language.
The main difference between GLyphy and other SDF-based OpenGL renderers is that most other projects sample the SDF into a texture. This has all the usual problems that sampling has. Ie. it distorts the outline and is low quality.
GLyphy instead represents the SDF using actual vectors submitted to the GPU. This results in very high quality rendering, though at a much higher runtime cost.
See this video for insight to how GLyphy works:
Dicussions happen on:
On GNOME3 and possibly other systems, if the vsync extension is not working (ie. pressing
v in the demo doesn't have any effect), try running with
vblank_mode=0 env var.
Compilation instructions on Mac OS X
- Install Xcode and command line tools (as of Xcode 4.3.x, from
- Install MacPorts.
sudo port install automake autoconf libtool pkgconfig freetype
Compilation instructions on Windows
Compilation instructions for emscripten
Assuming you have installed emscripten and have its tools on path,
CPPFLAGS='-s USE_FREETYPE=1' LDFLAGS='-s USE_FREETYPE=1' emconfigure ./configure
make EXEEXT=.html GL_LIBS= GLUT_LIBS=
- The result will be located on