CartoonEgdes in gameengine

I know how to render cartoon Egdes. but not how to make them into the gameengine, how can I make it, it is even possible? :Z

There is a way to do it, but it slows down the engine considerably. You have to duplicate your character’s mesh, resize it with Alt+S, invert the normals on your copy (Ctrl+Shift+N) and color it black. This looks good, but because your character is effectively 2x more complicated, it’s not a great solution.

Do ramp shaders work in the game engine?