How to get CMU small caps as a separate font?

Question

CMU bold small capitals work for me with \usepackage[T1]{fontenc} but not with \usepackage{fontspec}. Is there a way to get a separate CMU font that only has small capitals? When I buy fonts they come with separate files for small capitals and that works fine with fontspec.

Edit

\documentclass{report}
\usepackage{fontspec}
\setmainfont{Latin Modern Roman 10 Regular}[
    BoldFeatures = {SmallCapsFont = {CMU Serif Bold}},
    SmallCapsFont = Latin Modern Roman Caps]
\begin{document}
Roman. \textbf{Bold.} \textsc{Small capitals.} 
\textbf{\textsc{Bold small capitals.}}
\end{document}

Please tell us how you load CMU at present using commands of the fontspec package. — Mico, Mar 14 '21 at 05:55
@Mico Please see update. I am only trying to use bold small capitals from CMU. The output is bold but not small caps. — simple jack, Mar 14 '21 at 06:15
(The CMU opentype fonts include small caps as an open type feature, not as a separate font, btw) — David Purton, Mar 14 '21 at 06:25
@DavidPurton I tried using the Terminal commands from the linked answer. The first one was executed but the second was not. fc-cache command not found. So at this point it still doesn't work. — simple jack, Mar 14 '21 at 06:29
@simplejack, what about the \setmainfont{cmun} option which searches by file name? (fc-cache is a Linux command, so presumably you aren't running Linux). — David Purton, Mar 14 '21 at 06:56
Oh, and the Computer Modern Unicode fonts are not the same as the Latin Modern fonts. — David Purton, Mar 14 '21 at 06:58
@DavidPurton \setmainfont{cmun} doesn't work. font not found — simple jack, Mar 14 '21 at 07:01
Im not sure exactly what you tried. You need the full set of options from the linked answer. Or Try just \setmainfont{CMU Serif} and remove all your other font commands except for \usepackage{fontspec}. — David Purton, Mar 14 '21 at 07:06

score 4 · Answer 1 · answered Mar 14 '21 at 10:45

You have to set the features for small caps in a boldface context.

\documentclass{report}
\usepackage{fontspec}
\setmainfont{Latin Modern Roman}[
  BoldFeatures = {
    SmallCapsFont = CMU Serif Bold Extended Roman,
    SmallCapsFeatures={Letters=SmallCaps},
  },
  SmallCapsFont = Latin Modern Roman Caps,
]
\begin{document}
Roman. \textbf{Bold.} \textsc{Small capitals.}
\textbf{\textsc{Bold small capitals.}}
\end{document}

score 2 · Answer 2 · answered Mar 14 '21 at 07:14

Latin Modern Roman font does not include a bold small caps variant.

You can use the CMR Unicode font.

This should work with both xelatex and lualatex:

\documentclass{article}    
\usepackage{fontspec}    
\setmainfont{CMU Serif}    
\begin{document}    
\scshape small caps \bfseries bold small caps    
\end{document}

How to get CMU small caps as a separate font?

2 Answers2

Linked