So want to be able to feed a black and white image to a Niagara system and have the starting location of the particles correspond to the white areas of the image. So for instance I could feed the Niagara system the Unreal U logo and have it spawn particles so that they for a U. Has anyone done something similar to that? I’d like to be able to randomly spawn them anywhere along the white areas of the image as opposed to just being a grid. I’ve thought about just spawning them everywhere and then just killing the particles that fell outside the area that I wanted. That solution seems more straightforward to me, but i can’t really get that to work either.
Anyone have any ideas?