On 7/7/2017 6:20 PM, Robert wrote:
Existing expanded font instances are ignored, and only the base font
is embedded in the pdf. Expansion seems to be calculated mechanically
and linearly instead of taking into account the width axis of a
Multiple Master font.
There is no support for multiple masters which is obsolete technology
and (recently) has been cq. is being replaced by variable fonts.
Obsolete or not, MM fonts (and MetaFont) with their parametrised width
axis still allow typographically superior quality over expansion by
linear distortion. Variable fonts may well be the future, and I would be
excited to see them supported by luatex one day (I reckon this is not
yet the case?), but at present production-ready fonts don't even seem to
be available.
There are not that many mm fonts so it makes no sense to add code to
support them (the same is true for omega fonts). AFAIK one can make an
instance of such fonts and use that.
Concerning variable fonts: these are already supported for a while (and
supported by context) but indeed production quality fonts are not yet
available and the standard is not yet final.
Hans
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