Brushtool plugin - not mine
Decal - Concrete Rubble from Quixel MS library, which I created an opacity map for in Ps.
An individual map is 1024x1024, and each decal contains 3 maps.
If there are any developers experienced with the limitations of Roblox Studio reading this, how many decals could be used before combustion happens in a modern medium-end gaming rig.