myprojects-hg-reborn

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\documentclass[10pt,mathserif]{beamer}

\usepackage[english]{babel}
\usepackage[utf8] {inputenc} %for ISOlatin1 (8859-1) sources
\usepackage[T1] {fontenc}      %for polices DC 8bits 

%%%Fancy fonts
% \usepackage{emerald}
\usepackage{eulervm}
%%%

%%Extra packages
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{tikz}
\usetikzlibrary{arrows,shapes}
\usepackage[absolute,overlay]{textpos}
\usepackage{etoolbox}

%set text colors for different objects
\setbeamercolor{frametitle}{fg=white}
\setbeamercolor{structure}{fg=white}
\setbeamercolor{normal text}{fg=white}
\setbeamercolor{alerted text}{fg=white}
\setbeamercolor{example text}{fg=white}

%%Black background
\setbeamercolor{background canvas}{bg=black}

%%%%%%%%%%%%%%%%%%%%%%
%%%%%Script: Random Dust Trails%%%%%%%%%%%%%%%
\pgfmathsetseed{\number\pdfrandomseed} % seed for random generator
\setbeamertemplate{background}{
  \usebox{\mypicture}
}
%%%%%%%%%%%%%%%%%%%%%%

\BeforeBeginEnvironment{frame}{%
    \begin{lrbox}{\mypicture}
        \begin{tikzpicture}
        \useasboundingbox (0,0) rectangle (\the\paperwidth, \the\paperheight); 
        \foreach \i in {1,...,30} {
            \pgfmathsetmacro{\x}{random(0,10000)/5000-1}%
            \pgfmathsetmacro{\y}{random(0,10000)/10000-0.1}%
            \pgfmathsetmacro{\r}{random(0,10000)/1000-5}%
            \rotatebox{\r}{
                \pgftext[at=\pgfpoint{\x\paperwidth}{\y\paperheight}, left, base]{\includegraphics[width=\textwidth]{stroke.png}}
            }
        }; 
        \end{tikzpicture}
    \end{lrbox}
}
  
%%No navigation bar
\setbeamertemplate{navigation symbols}{}

\begin{document}

    \newsavebox{\mypicture}
    \begin{frame}

        \begin{itemize}
            \item<1-> bla slide 1
            \item<2-> blu slide 1
            \item<3-> blub slide 1
        \end{itemize}

    \end{frame}

    \begin{frame}

        \begin{itemize}
            \item<1-> bla slide 2
            \item<2-> blu slide 2
            \item<3-> blub slide 2
        \end{itemize}

    \end{frame}

\end{document}