假床单效果

Question

如何在 LaTeX 中重现这种效果？

Answer 1

这是一个非常基本的方法：

\documentclass{article}
\usepackage{tikz}

\begin{document}

\begin{tikzpicture}
\shade[left color=gray!50,right color=gray!50,middle color=black!55,rounded corners] 
  (-3.4,-5.25) .. controls (0,-5.13) .. (3.4,-5.25) -- (3.4,-4.98) .. controls (0,-4.98) .. (-3.4,-4.98)-- cycle;
\fill[gray!60,rounded corners] 
  (3.6,3.3) .. controls (3.74,4.8) .. (3.76,4.9) --  (3.4,4.95) -- cycle;
\node[fill=gray!15,rectangle,rounded corners,text width=7cm,text height=10cm] 
  at (0,0) (sh) {};
\end{tikzpicture}

\end{document}