1. Compiling

   1.1. Delete old files if exists: rm -Rf CMakeFiles rm CMakeCache.txt rm cmake_install.cmake rm Makefile rm pclBox

   1.2. Generate Makefile: cmake .

   1.3. Compiling: make

2. Running

   2.1. Running: ./pclBox

   2.2. Operate: Clean desk; Press "b" and wait until program save background (about 20 seconds); Put the box on desk.