Something must have broke along the way between the last few updates… I’m seeing more and more visual issues with FC13’s real time rendering window when compared to a web browser’s (correct) output.
Forgive my ignorance, but is there any chance FC will ever have real time rendering that matches that of a web browser? Is this too resource-intensive to achieve?
The shaping engine has improved significantly over the years, and we are constantly improving it based on both our own findings and user feedback. You are making a font with the most complex OpenType layout features we have ever seen, so we understand the importance for you to use a perfect shaping engine.
To get in line with modern web browsers, we have to integrate harfbuzz into our font editor, but that is out of scope right now.