Interpolation problems in `Recursive[CASL,CRSV,MONO,slnt,wght].ttf` about recursive HOT 19 OPEN

Hey Behdad, this is a super cool report! At least in the PDF visuals, the suggested fixes all appear to be worse than the midway interpolations. But, Recursive is definitely a complex designspace with some unusual interpolations, so it's understandable that an automated tool might misinterpret a few of parts of it.

I'll close this issue, but please feel free to let me know if there's anything you think I might be missing.

Thanks!

from recursive.

Yeah the tool cannot always propose good solution. But the first glyph seems to have kinks in that are probably unintended.

from recursive.

Oh, upon second look, you are correct! Thanks for pointing that out.

from recursive.

Hi again,

I'm implementing a kink-detector. It's still far from complete. But I thought I get your feedback on it.

out.pdf

from recursive.

I think my question is, is this useful? Or those differences are small enough to let go? Basically, I'm trying to calibrate the tool.

from recursive.

Ooh, yes, this is amazing! Definitely a useful thing to find issues that were hard to locate, before. I especially want to try this out on Shantell Sans, next.

from recursive.

Some of the differences here are small enough to let go of, IMO. In particular, the /percent glyph is deliberately weird, and I don't see any super noticeable issues in the /one. But, seeing the issues in the the /Euro and /uni02C8 is very informative, and those are things I'd like to improve.

from recursive.

Here's a much more aggressive version. I'm still tuning. :)

out.pdf

from recursive.

Retweaked. Shantell Sans. Catches one that doesn't matter.

out.pdf

from recursive.

These are great! The more aggressive version is nice, imo. Does the command line version have an arg for threshold?

from recursive.

These are great! The more aggressive version is nice, imo.

Interesting. I thought it would be too busy. I'm still tweaking.

Does the command line version have an arg for threshold?

It will have, when I'm done with it.

from recursive.

Does the command line version have an arg for threshold?

It will have, when I'm done with it.

For now I'm reusing the existing --tolerance. But I'll probably add a separate knob for just the kink checker as well.

from recursive.

Here's what I'm happy with as default tolerance.

out.pdf

from recursive.

I settled on this for default, for now. There's --kinkiness parameter you can tweak. Might tweak the defaults again. Your thoughts?

out.pdf

from recursive.

That was way too much subtle details for the catalog. I'm trying this setting now.

out.pdf

You can still get the aggressive result if you want by setting --kinkiness to 1 or above. It defaults to .5 now.

from recursive.

How about this as default?

out.pdf

from recursive.

I made the default conservative, as across the catalog it was overwhelming the reports...

from recursive.

Here's what the current output looks like.
out.pdf

from recursive.

Hey, this output is super helpful! Thanks again for the excellent testing tool. I’ll try to fix these kinks in the coming weeks, and make a new release early in the new year.

from recursive.