Preview and sample shows wrong spacing at small sizes

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nabsltd
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Joined: Tue Oct 18, 2016 12:35 am

Preview and sample shows wrong spacing at small sizes

Post by nabsltd » Tue Oct 25, 2016 5:13 am

In MainType 7.0.0, at font sizes smaller than 20 points, some fonts have incorrect spacing:
MainTypeSpacing.jpg
MainTypeSpacing.jpg (108.5 KiB) Viewed 477 times
Microsoft Word showing samples of the same font, from 12 point to 22 point:
WinwordSpacing.jpg
WinwordSpacing.jpg (78.37 KiB) Viewed 477 times
The actual text used doesn't change the behavior...I used a shorter sample on Word so it wouldn't take so many lines. This happens with dozens of fonts in my library...I'm sure there must be a few in every library.

Erwin Denissen
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Re: Preview and sample shows wrong spacing at small sizes

Post by Erwin Denissen » Tue Oct 25, 2016 8:27 am

The text control used in the preview is a default Windows control, so this is how Windows renders the font. I suspect the font contains bad hinting which reduces the advance width of glyphs at low point sizes. The Tiranti font is over 26 years old, so I'm not sure it is buggy or does meet today's standards.

The font shows just fine without hinting, as well as with autohinting:
Tiranti.png
Tiranti.png (4.97 KiB) Viewed 473 times
Erwin Denissen
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Proven Font Technology

nabsltd
Posts: 52
Joined: Tue Oct 18, 2016 12:35 am

Re: Preview and sample shows wrong spacing at small sizes

Post by nabsltd » Tue Oct 25, 2016 6:42 pm

Erwin Denissen wrote:The Tiranti font is over 26 years old, so I'm not sure it is buggy or does meet today's standards.

The font shows just fine without hinting, as well as with autohinting:
So, I guess I should add a request for a control to enable/disable hinting on the samples, along with the OpenType feature toggles.

Erwin Denissen
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Re: Preview and sample shows wrong spacing at small sizes

Post by Erwin Denissen » Tue Oct 25, 2016 6:47 pm

Sounds cool.
Erwin Denissen
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Proven Font Technology

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