I have implemented decals in our new game engine, and I am having trouble with some design decisions.Decals can be large or small. Sometimes they might appear only on a moving object, like a bullet wound in a character's leg, or a blast from a grenade that marks the corner of a room.In our renderer, decals are drawn using the lighting system, so by default they appear on all surfaces within their volume. I need to pass information to the GPU that will allow the decal to select w