Need Help making a Panning Emissive Texture Material as a new beginner!

Hi everyone, super new to UE here. I got it in the past but couldn’t figure out anything. However, this month for a college course I’ve been becoming more familiar with it, and learning the ropes of materials and such in it. Given, my knowledge is still pretty limited, so bear with me if this comes off as a dumb question, but I’m trying to create a form of light emissive that flows down a track, something roughly like seen in this post here, and the way I’m trying to implement it is like, forgive the unprofessional editing, but this video, where instead of having an intermittent blink, have it go down in a scanline form.

I’ve done what I can to cobble together what could be seen as a very spaghetti code attempt at it, but even then I simply can’t get it to work how I want it to. I’ve seen people upload alphas in however of their own for the scan effect so desired (Here) And I just want to know if anyone could guide me through what to change it or just how to set something like that up so I can work with it into my already existing effect? Featured code for mine added as well, even if its a mess, in case it can help anyone lol. thank you!!!

So you have a mesh with this on it

placed 4 times in the level?

I can tell you now, to avoid weeks of anguish ( :rofl: ) that if you get this working, all 4 will pan simultaneously, it won’t be a big pan down the line.

You can get each one of them to pan using by multiplying your emissive mask and something like this together, with a panner

You can make these pretty easily in Gimp ( photoshop ).

If you want the pan to go all the way down the corridor in one action, then you would probably need to use a world aligned texture.