I have some decal prefabs I use to put stuff on walls. I use them rarely enough that I always forget whether I set things up for the prefab’s “forward” direction to face into the surface or out of the surface. For some decals, it’s really obvious when I have it flipped 180’, but for other decals it’s more subtle. It’s always the case that having the decal flipped 180’ results in it looking wrong, and eventually I figure it out and flip it.
My question is: is there a strong reason why decals were made to be two-sided, such that if it’s flipped 180’ it will render, but with inverted normals? It seems it would be much more convenient if the decal only rendered in one orientation, so I don’t have to judge whether I’ve got it reversed or not. I don’t see an option to turn off this two-sidedness in the material or the projector.