5

What I'm trying to do is actually introducing a column in a beamer mode the as the second one next to it is in grey (transparent effect). But it will color only what is before the itemize. Suggestions?

 \documentclass{beamer}
 \usetheme{Berlin}
 \usecolortheme{beaver}
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc} 
 \renewcommand{\sfdefault}{cmss}

 \title{3D-Lithography}
 \begin{document}
 \begin{frame}
 \noindent\begin{minipage}{.45\textwidth}
 Basic Problems of Single-Photon Polymerization:
 \begin{itemize}
 \item layer-by-layer type of manufacturing (limits possible geometries)
 \item suppression through undesired quenching of radicals
 \item diffraction limits
 \end{itemize}
 \end{minipage}
 \begin{minipage}{.45\textwidth}
 \color{gr}
 Two-Photon Polymerization:
 \begin{itemize}
 \item kdkd
 \item dkdkd
 \end{itemize}
 \end{minipage}
 \end{frame}
 \end{document}
2
  • 1
    Wouldn't it be easier to say \setbeamercovered{transparent} and adding \pause before the second minipage?
    – egreg
    Jun 26 '13 at 22:32
  • @egreg EXactly, that was what I was trying to achieve, in my search I found an example by colouring it in gray. BUT nevertheless you got again a smarter decision! Thank you! So perhaps I should close the theme?
    – Biri
    Jun 26 '13 at 22:39
5

A basic feature of beamer is the possibility to have overlays: a frame can be thought as consisting of many layers that can appear (or disappear).

The easiest way to produce overlays is to use the command \pause. By default the next layers are invisible, but one can set an option to make them “transparent”.

Here's your example using this idea.

\documentclass{beamer}
\usetheme{Berlin}
\usecolortheme{beaver}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}  


\setbeamercovered{transparent} % <-- the next layers are grayed out

\title{3D-Lithography}

\begin{document}

\begin{frame}
\begin{minipage}{.45\textwidth}
Basic Problems of Single-Photon Polymerization:
\begin{itemize}
\item layer-by-layer type of manufacturing (limits possible geometries)
\item suppression through undesired quenching of radicals
\item diffraction limits
\end{itemize}
\end{minipage}
\pause
\begin{minipage}{.45\textwidth}
Two-Photon Polymerization:
\begin{itemize}
\item kdkd
\item dkdkd
\end{itemize}
\end{minipage}
\end{frame}

\end{document}

enter image description here

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