Nagra VFX epic games does a smoke in a barrel video tutorial on thier youtube “first hour of uefn”, video
Hi not too sure i havent done the video as i havent need to but i did have a quick look and found something you can just use straight away.
in fortnites asset folder there is a VFX folder in that VFX folder is a “Campfire Smoke” Niagara system which you can click and drag into your map straight away and get a smoke effect with no needed changes!
it is a fortnite created read only asset so you cannot make any editing changes besides what it allows in the details tab
to make changes you would have to make a niagara system from scratch with your own materials and sprites, which to do you should watch a Unreal engine niagara tutorial as unreal 5’s niagara system is exactly the same as uefns so you can just replicate what they do in uefn instead of unreal
thank you！