(Tutorial) Simi CelShade PostProcess Material work with light color, point lights and skybox

Hi, First let me tell you, this is one of the most detailed, and clear tutorials on celshading i’ve ever seen, so congratulation !

I’m a newbie, so i may ask stupid questions. So here is the deal. I’ve been looking for this post process all over the internet, all other celshading post processes destroy the sky box… I haven’t yet try this myself, but it look perfect, though they are things i don’t understand. First of all, is “Custom Depth” a way to avoid some objects from being celshaded ? Can some objects not being celshaded ? For instance, I’m making a Star Wars fan game (don’t ask for any screens, since I have very few assets, still learning 3D right now), and if my understanding of materials is correct, lightsaber blades are like 100% emissive color, and i obviously don’t want the blade to be celshaded. Is there a way to do so ?

Thanks a lot if you can answer my questions !