Interpolation do I need stem widths?

Glyphs
1

I’m working on a variable font with two masters: Light and Bold, and it seems to be working okay. I hadn’t originally planned to interpolate between them, but now that I’ve done the work, I thought I might as well create, say, four weights as a standard typeface.

I’m not quite there yet, but do I need to enter stem widths in the Masters panel for interpolation to work correctly? The design deliberately uses different stem widths for almost every character, and I also have around eight stylistic alternates for each letter from A–Z.

stems
stems1676×742 16.5 KB

animation

Any help would be much appreciated.

Cheers

2

The stem values are used for hinting. Have nothing to do with interpolation. So If your drawing don’t need hinting, you don’t need stem values.

3

Ah perfect, I’ll worry about it later then and continue finishing the two weights.

Thank you

Si