$ git clone https://github.com/ymd-stella/godot_ros_pcviz.git
$ cd godot_ros_pcviz
$ git submodule update --init --recursive
$ cd docker
$ ./run.sh
$ ./godot # open Godot
on Godot
[Import] -> [Browse] -> Choose /home/tom/catkin_ws/deve/lib/godot_ros_pcviz/project.godot -> [Import & Edit] -> [Play] or [F5]