I know 
. Unfortunately, the way I’m rendering particles on screen is through Unreal’s SMeshWidget, which requires the material domain to be UI. I’m not even sure that there is a way to make them render with normal materials, because you’re missing a lot of world information (for example lighting). Also, you probably want separate material for UI particles anyway, since the UI particles won’t have any post processing applied to them. Which means effects like bloom just won’t work, and you have to fake them in material (you can find an example in the demo project).