I have used this video by Epic Games to try and make an asynchronous loading screen but was curious if I could have transparency to show the main thread game. Currently the slate is running on pre-loading screen module which Unreal automatically threads slate on. Whenever I add slate to the movie player, I am unable to show the background (or the main thread showing the game) with slate and is instead replaced with a black background. Is this even possible, I feel like it would be.
Code Starting Movie (run right before blueprint “Open Level” is called):
Transition Widget:
