How do I get fake slant (italics) with XeLaTeX?

Question

I am setting my font using this:

\setmainfont[Mapping=tex-text]{Tahoma}

But text labelled \textit or \itshape isn't appearing italicised. is there a way to setup fake italics?

Answer 1

\setmainfont[Mapping=tex-text,AutoFakeSlant=0.4]{Tahoma}

The number determines the severity of the slant. I don't have Tahoma installed so I don't know what looks good with it.

Search the fontspec manual for "FakeSlant" to see more options.