Blueprint communication between levels?

Development Programming & Scripting Blueprint
1

I’ve been using ue4 for almost a year but I didn’t realize that opening a new level will reset all the variables to default.

so I’ve got a menu with graphic settings that can be modified both through the main menu and in game menu, but bcz the main menu is in a different level, when the player starts the game it will open a new level and all the settings get reset to default, making the main menu totally useless, how can i carry over all the settings to any level?

2

That would be with the game instance!
When creating one, make sure to set it in project settings/maps&modes
Afterwards, you can just call it in the blueprint that you need.

3
  • Q: What if the player quit the game and launched it tomorrow? All their settings would be gone?
  • A: Save Game

The Game Instance is fine, but!

  • Q: What if we crash? All settings gone again? :frowning:
  • A: Save Game

Save Game is a reasonable answer to most questions…

  • if any adjustments are done in the menu → pack it into a struct → Save Game Object → Save
  • any next time the menu opens, load it and restore it all
  • optionally, set up a bMainMenuNeedsSaving flag to indicate that something has changed this session and a new state needs saving
4

thanks, my game is not really that big so players are not gonna replay the game anyway hah.

5

i’ve one more question which is unrelated to the topic.

is there a way to change texture LOD at runtime without duplicating the textures?