Interpolation problems in `SourceSerif4[opsz,wght].ttf` about source-serif HOT 5 OPEN

Thanks Frank for the feedback. I was still tuning my tool. With current default settings it doesn't report those anymore. It does catch major kinks that the designers want to fix.

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Sorry for the noise.

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I was also tempted to close this at first, but I think it's worth a second look. The interpolation is fine, but you'll see that points are "wandering" (moving across a long distance).

I'll make an edit as soon as I find a moment.

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Hi Frank. Do you find this useful? It's a kink detector.

SourceSerif4[opsz,wght].ttf.pdf

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Hi Behdad, thank you for this. I am aware of those kinks, but I don’t think there’s a way around them (except HOI).
I have made my own kinking reporter in RoboFont, and I left those points in deliberately – otherwise, the style of the terminal would have been compromised.

It’s tempting to flag those kinks as an error since it’s technically possible – however I don’t think they are very relevant.
A typeface in which all outlines are completely smooth isn’t necessarily better than a design where kinks may occur – especially if we consider the intended application size.

With respect for this work, and without any judgment – flagging those could be interpreted as “missing the forest for the trees“. :-) Still, I think it’s useful for the designer to be informed of kinking, so they can make a decision whether they are avoidable.

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