I'm working on a custom VPX table and I'm using the technique of placing a full-table flasher for the overlay layer of insert borders and light overlay text that needs to stay dark on top of the lights. I've seen a bunch of other tables do this so I copied the materials, image settings, flasher settings, etc. from working ones. I'm not sure what's causing it, but I'm seeing some white artifacts around the edges of the markings within the image. It's usually on the polar edges of each light's outlines, but sometimes it's a little speck in the corner instead.
Here are some pics, for these I switched to a flat wood table texture rather than my actual one with holes for insert primitives to show that it's not an artifact from the table texture itself.
https://i.imgur.com/fKz30Li.jpeg
https://i.imgur.com/PQ5hoAo.jpeg
I've confirmed that the overlay image itself doesn't have the artifacts and I've tried all sorts of alpha mask values for the image as well as every setting on the flasher. I've also seen some tables use a giant ramp instead of a flasher, but I saw the same issues doing it that way. The overlay image is 2048x4152 pixels if that matters, I was thinking it might be something with texture atlassing or something but I wouldn't know where to look for that. As a sanity check I did also try making a version of my overlay with hard pixel edges (no partial transparency, each pixel is either full opaque black or full transparent) and still saw the issue with that too.
Does anyone have any ideas as to what might be causing this? Or, alternatively, is there another better way to create this kind of black masking on top of your table lights?
Thanks in advance for any help!
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