[Already In] Using Decals for wall textures

[PaganRaven]

I'm wondering if this is something that has been implemented or has been done. The idea is, instead of using 3d sectors to make walls that have multiple textures on the same plane, you would set a decal to a wall, assign it a texture give it a Z height where it would start on the wall, and X and Y for the width and height it would scroll to. We wouldn't want it to generate multiple decals to satisfy the demand tasked of it, because that would be wasteful. It should be one object that acts acts as a continuous wall texture.

[Gez]

You can already do this kind of things, it's one of the Build-inspired features in ZDoom. See decal thing.

[Graf Zahl]

And coincidentally, in Build you also need to place a sprite for this.

[PaganRaven]

Yeah bit is it as easy as I described?