This script is used to switch the material of a 3D model. It has a list of materials that can be switched between and keeps track of the current material index.
When the SwitchMaterial function is called, it changes the material on all mesh renderers to the next material in the list. The RestoreOriginal function restores the original material and mesh data.
The SaveOriginal function saves the original mesh data for each mesh filter in the object hierarchy when the script starts. This allows for easy restoration of the original mesh data when needed.
Note: There are a few parts of this script that are incomplete or incorrect (e.g. some type casting issues), so it may not work as intended without additional modifications.
