How to save every wall that material has been change??

Anyone please help! I am newbee in unreal engine, I have a project to make a simulation to change material on the wall of the house, for my thesis. I wanna save every wall that the material has been changed. I have not found the way to save it :frowning: your response will be meaningful to me. (sorry for bad grammar)

If you want to change the textures on your walls in runtime, you will need to set some ā€œmaterialā€ variable for each wall.
You will then want to save these variables in an object to get them back after quitting the game.
If Iā€™m right, the object you search for is the game instance

hereā€™s a video on how to use it : HTF do I? Use the GameInstance Object in Unreal Engine 4 - YouTube
You can save array of variable in them :slight_smile:

Actually the object to ā€œsaveā€ things to the disk is a ā€œSaveGameā€ object.
Game Instance will reset everything after your app close.

Your assurance gives me doubt but I use only gameInstance and no savegame and my game keeps the settings for keybinding and all even after a restartā€¦