(Newb) Can't preview any of the OT features

Eimantas Paškonis's picture

Can please someone tell me what obvious thing am I missing? :)


ralf h.'s picture

You need to press the compile button first (in the upper window).

Eimantas Paškonis's picture

My class kerning works in applications when font is exported.
I probably need to expand it somehow?

twardoch's picture

"Missing glyph" means that your class definitions refer to glyphs that aren't in the font.

The "kern" feature definition shouldn't be empty. You can just omit it. In Preferences, make sure the "Generate 'kern' feature if it is undefined or outdated" is enabled.

Eimantas Paškonis's picture

So I deleted "kern" feature and eliminated errors, but I still can't preview.
Also, how can I generate "kern" feature to show up in preview?

Eimantas Paškonis's picture

In other words, how do I fix all this mess? :)

P.S. I noticed that all these "missing characters" are glyphs with "undercomma" accent. What's strange is that I have them already created (with name and unicode) but FL asks me "if I want to create these missing characters" (basically duplicate with same unicodes).
Is it because there is no "conventional" names for undercomma characters and I have renamed them myself to "Xundercomma" ?

Eimantas Paškonis's picture

Got to this:


It's because my my "kern" is feature is empty. So I deleted it and now I can preview other features.
But how do I preview kerning?

twardoch's picture

Do you have "Generate 'kern' feature if it is undefined or outdated" enabled in Preferences / Generating OpenType & TrueType / Kerning?

If so, when you compile the features, FLS will automatically convert your Metrics Window + Classes panel kerning into an OT "kern" feature.

Eimantas Paškonis's picture

I do. Yes, it works fine outside FL, but so does it mean there's no way to preview class-based kerning in Preview pane?

Eimantas Paškonis's picture

Nevermind, I used "generate" option in metrics window and it compiled "kern" feature.
Then my question is: I will probably have to update it manually if I change values?

Stephen Rapp's picture

Just hit generate again in the metrics window and it will ask if you want to rebuild the kern feature. Hit yes.

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