@EchoWinds I don’t have Roblox studio on my screen at this moment. and I also don’t use decals much, but if you place them apart and change the transparency to 1 and put the decal in the part it might not make it see-through. tell me if it didn’t work.
There’s nothing wrong with the decal, if anything it may be a Roblox bug as this wasn’t happening to me before. As I’m not 100% positive yet, I’d still like a way to fix this issue.
The Transparency is fine so it can’t be that either. Worth mentioning that this happening for every decal in the game and not just this one. This mainly happens when you put a decal in the open and that’s where the background can be visible through it. Has this ever been an issue for you?
It looks like ambient occlusion (the shadows inside corners) is showing through the decal.
Use the paper decal in another place. Ensure that there are a lot of corners nearby and that there’s ambient occlusion, and look at the corners through the decal. Does the bug still happen?
If it does, then the problem might be in the decal you’re using.
Use a different decal instead of the paper decal. Does the bug still happen?
If it does, then it might be an engine bug. But then I’d be very surprised if you hadn’t seen this happen before.
I’ve noticed this as well. When a texture is applied to a transparent part. Geometry can be seen through the decal but only when Lighting.Technology is set to “Future”. At least from my own observations. See pics.
Decal transparency = 0 and the part it is on has transparency set to 1
ShadowMap: