How can I put a destroyable decal onto Terrain?

[TheLittleLambCraft (Dex)]

I know Decals exist, but I want to make something similar to this post:

SurfaceProjection object

If this becomes a thing, the automatic anti-aliasing that roblox does on images needs to be dealt with, but beyond that, I’m in support of it. As an aside, I don’t think this being an extension of the decal object would be ideal, simply because it wouldn’t allow for as much customization compared to using GUIs, but either (or both!) would work.

I’m not gonna be moving the Decal, so I don’t mind if it’s not a projection. The part where my post is different is the fact that I want the Decal to be destroyable.

My game is a craft-and-escape game and I want to let the player know that they’re supposed to put a bomb in that position to break out of the tunnel. If I use a Part with a SurfaceGui on it, the SurfaceGui won’t bend around the terrain like in the post above. Even if it does, the X will stay there after you blow up the wall. How can I combine both of these features? (Think of how spray paint works in real life. That’s what I want in my game.)

[ToonShader (Toon)]

I think you’re just going to have to make the terrain in that area flat and put a Part with a Decal on it.

[TmsDevv (Tms)]

I don’t think there is any possible way to put a decal on terrain, but you can use a mesh, since you want that curved look. You could model a mesh the same shape and curve as the terrain, place it over the terrain, make it fully transparent, put a decal on it and you have it! Hope this help

[TheLittleLambCraft (Dex)]

I want the player to destroy that part of the Terrain, so the MeshPart will just be floating with this method.

[TmsDevv (Tms)]

You could script the mesh to disappear when the terrain is destroyed.

[TheLittleLambCraft (Dex)]

Yeah, but as far as I know, there’s no real way to do this without huge performance issues and maintenance problems (think like invisible anchored parts that sense explosions)