Re: Italic open-o in omega

you said:
>well, that means that InDesign effectively builds the metric "on the
>fly" to generate optical kerning. the result will be the same if one
>generates the kerning beforehand for the given font, and will put that
>into the metric file (AFM, OFM, TFM, etc). still, the Omega or TeX
>will need only metric for it's operation...

Except that it's able to do this for arbitrary pairs (say between two
totally different / unrelated fonts)

You'd need an impossibly high number of kerning pairs to achieve this in
TeX if generating them up-front---even just generating all the pairs
necessary for a job w/ a previously unused set of fonts would be a
choir, for example, I want to use Sabon and Syntax in a document, I need
kerning paris for:

Sabon Roman and Sabon Italic
Sabon Roman and Syntax Regular
Sabon Roman and Syntax Italic

Sabon Italic and Sabon Roman
Sabon Italic and Syntax Regular
Sabon Italic and Syntax Italic

Syntax Regular and Sabon Roman
Syntax Regular and Sabon Italic
Syntax Regular and Syntax Italic

Syntax Italic and Sabon Roman
Syntax Italic and Sabon Italic
Syntax Italic and Syntax Roman

and that's with no use of bold or small caps or old-style figures or
symbol fonts.

William