I am trying to create a single axis variable font (VF) with two masters. Is it possible to export VF in
*.otf format in Glyphs? Since Noto Series VFs are in
*.otf format, I think maybe it is possible?
The reason I need
*.otf format is that since the VF export format only has
*.ttf, the cubic bezier curves in Glyphs I draw, will be translated into quadratic bézier curves (TrueType curve).
Even though the curve of both master’s instances are correct (Image 1), but when VF goes into Adobe Illustrator, the font will be re-rendered as cubic curve, making some interpolations’ (between two masters’s value) curve seem strange or discontinuous (Image 2).
I have already increased font UPM from 1000 to 2000. The result seems better, but still not good enough. Also, I have installed Show TrueType Curves plugin and kept the curves well in both masters, but the strange curve is often happened between interpolations that I need to install and test the VF in Illustrator, which spending too many time for me.
Thus, I think the best way to solved the strange curves is to export in
*.otf directly, to avoid the font being translated and re-rendered between cubic and quadratic curve.
Or are there any useful suggestions or tips for this issue?
Image 1: In Glyphs, using Show TrueType Curves plugin to show the interpolations between masters, the curves are continuous.
Image2: In Adobe Illustrator, the interpolations rendered strange and discontinuous curves