The title might be a bit confusing but what i am trying to say is:
How can I do something like this without the use of selection boxes, The reason i am asking is because i want to apply this effect to my union parts and meshparts.
I don’t mind not being able to do the outline (because i don’t want to recreate an inversed mesh for every single one in the game and also due to performance issues) I only want to re-create the color if possible.