This repository contains a python script to slice & rename skybox images and make them ready to be imported to Planet Coaster.
You will have to install a few things to run this.
The first thing is to get Python from here: https://www.python.org/downloads/ follow the respective links for your OS (Linux/Windows/Mac). Be sure to get a version that is larger than 3.6 (it probably works for any version > 3.0, too. but I haven't tested that.).
Once you have that, open a console window and install an image processing package for python like this:
pip install opencv
In the folder where you have the script image_slicer.py
.
Next to it (i.e. in the same folder) you should have a folder with the images you want to have in your park. In order to get them displayed correct automatically in the game they should have the following names:
back_00_00 \ 01_back_00_00_left \ 01_back_00_00_right \ 01_back_00_00_front \ 01_back_00_00_top \ 01_back_00_00_bot \
...
If those are in place you can start the script by entering the next line to a console window:
python image_slicer.py <folder_name>