I made some models for my game. They all must have 3 elements inside.
But when I apply materials to my model and import, elements go in different order than other model with same materials.
If I decide to remake my model from scratch and reimport it, element order will be different again, which is very annoying.
So… How can I make Blue material to be element 0, red - 1, green - 2. No matter, if it will be inside 3D editor or UE4, but without switching materials.