I tried to use the mask function by covering part of the font to achieve a variable font that can adjust the thickness.
The details of how I did it are: make a font with a full bold as background, make a mask with tiny width, and make the thinnest font. As the mask with the tiny width increase to cover the full bold background of the font, the weight can be changed.
For example, I’m working on “H”, where the background is a complete black square, and the tiny width mask covers the least of the background and makes the vertical lines on both sides extremely thick, while I change the mask to the widest and it will cover the entire background, thus making the vertical lines on both sides the smallest possible.
However, the “Can’t convert to compatible TrueType curves.” prompt keeps appearing and I can’t export the variable font file, or some fonts that don’t have the above prompt don’t change as much as I thought.
I have tried: clearing the excess anchors, confirming the order of the parts in the font, confirming the number of anchors for all parts of the font, and converting all paths to the TrueType curve in the path option on the top bar, resetting the initial points of the paths.
But with the above, some of the fonts achieved what I expected, but some did not, and it seems that there is no single way to solve all the problems.
So is my approach inherently infeasible, or are there some details I’m not aware of?
