The following code
\documentclass{article}
%\def\pgfsysdriver{pgfsys-dvipdfmx.def} %this line does not matter
\usepackage{tikz}\usetikzlibrary{shadows.blur}
\begin{document}
\begin{tikzpicture}
\draw[blur shadow](-2,0)circle(1);
\draw[blur shadow](0,0)rectangle(3,2);
\end{tikzpicture}
\end{document}
leads to
Only XeLaTeX produces this. It is fine with LaTeX and LuaLaTeX. Any idea to fix it?
See also https://tex.stackexchange.com/a/445321/2388
\documentclass{report}
\usepackage{tikz}
\usetikzlibrary{shadows.blur}
\makeatletter
\newcounter{shadowblurcount}
\tikzset{
/tikz/render blur shadow/.code={
\stepcounter{shadowblurcount}%
\pgfbs@savebb
\pgfsyssoftpath@getcurrentpath{\pgfbs@input@path}%
\pgfbs@compute@shadow@bbox
\pgfbs@process@rounding{\pgfbs@input@path}{\pgfbs@fadepath}%
\pgfbs@apply@canvas@transform
\colorlet{pstb@shadow@color}{white!\pgfbs@opacity!black}%
\pgfdeclarefading{shadowfading\the\c@shadowblurcount}{\pgfbs@paint@fading}%
\pgfsetfillcolor{black}%
\pgfsetfading{shadowfading\the\c@shadowblurcount}%
{\pgftransformshift{\pgfpoint{\pgfbs@midx}{\pgfbs@midy}}}%
\pgfbs@usebbox{fill}%
\pgfbs@restorebb
},
}
\makeatother
\begin{document}
\thispagestyle{empty}
\begin{tikzpicture}
\draw[blur shadow](-2,0)circle(1);
\draw[blur shadow](0,0)rectangle(3,2);
\end{tikzpicture}
\end{document}
This is not a bug in pgf, but in pgf-blur. I found a working version here: http://bazaar.launchpad.net/~tex-sx/tex-sx/development/files made by Andrew Stacey. This version fixes some other bugs, too.
