Cel Shading in Unreal Engine 4 (4.21) 

thank you

And if that doesn't work go to the SkySphere static mesh, Rendering, Override Materials and reset it to the default value.

I'm not entirely sure what you mean, though I'm assuming you're referring to the edge-lighting present in BOTW. That is known as fresnel lighting (though I think only when there is no physical backlight in the scene?) UE4's shaders do have a built-in fresnel feature, though it encompasses the entire edge of the mesh on all sides. In BOTW, the fresnel lighting is only present in the direction of the most powerful light source; or, more simply, there is added fresnel on the highlighted side of an object, and no fresnel in the shadows. It's also a sharp cutoff between the two (sticking to the cel-shaded style). I did look into working with the UE4 fresnel feature to make it look more like BOTW, but I couldn't really figure it out. I did find someone who managed to keep the fresnel only to one side in their project, though the location didn't change dynamically, ie, as the object/lighting changed, the location of the fresnel wouldn't change. You had to move it manually in the actual material (I don't even think it was a post process material, it might've been baked into the object's own textures). It was also a soft, realistic fresnel, whereas BOTW's effect has sharp edges. Since I'm still a beginner myself, it was simply too much for me to figure out. Sorry I can't help too much :/

@@poke_ For me, it looks like the Botw-Shader supports different colors of light.

Uhh I'm not entirely sure, though I'd imagine that, since there are only 2 possible light-levels (light and shadow) on your custom-passed objects, it would take far fewer light sources than usual to make the effect convincing. Sorry I can't offer more. I'm still a beginner myself, and haven't tried playing around with anything meant for mobile :/

I know it's been 2 years since you commented this but the best way if this whether if it's or it isn't compatible with mobiles, it's by testing it by yourself.

I got this issue too, every single tutorial for cel shading I try to do doesn't work with my day/night cycle. Would love to learn or figure out how to do it.

@@gatlinfitzgerald3425 you'd have to add in a custom shading model to make the shader work properly with lights and everything else. There are tutorials online for this (e.g. by Matt Hoffman), but they're quite complex. However, there is a trick around this in the post process shader, though it won't give you a fully flat cel shaded look. It's documented well in a post on unreal forum by Thura Oo (just look up Thura Oo Cel Shader and it should pop up in the results).

apply it in the blueprint of the character

Go into the third-person template files they give you, find the actual skeletal mesh that the character uses, and turn on custom depth.

@@poke_ thanks :D

Yes, however the effect is most apparent on rounded objects

You can't apply light color with this method. You only use the DiffuseColor of the object (base color without any lighting info). I've never seen any cell shading tutorial which handle light colors well.

As far as I know, outlines are a fairly difficult effect to achieve in UE4. I'm definitely not good enough to tackle them, though I know there a some pretty in-depth tutorials out there

Have you found any good tutorials for outlines?

@@supersquare If you search into RU-vid "unreal engine toon shader" you'll see a video of a livestream by the Unreal Engine channel and if you follow up til the 45min mark, you'll obtain a black outline for your scene

Thanks so much! Can't wait to try it along with this great one :)

www.raywenderlich.com/146-unreal-engine-4-cel-shading-tutorial#toc-anchor-010 Here we go [USING CUSTOM DEPTH]

apply it in the blueprint of the character

I'm really glad you appreciated that. I know I wish more tutorials did it :)

@@poke_ what are your skills in ue4?

as in what are you best at

You may have forgotten to make your post-process volume unbound?

@@poke_ how to unbound it thanks :)

@@danharbor1752 there should be a little checkbox that says 'unbound' or 'no bounds' or something

@@poke_ ill look bc yeah i followed ur video perfectly toon shader worked nicely just that it got applied to everything lol and the sky went black ill look for that unbound here in a bit

@@poke_ does this mean that the sky is a metal material? lmao curious why it turned black tho

you have to enable "custom depth" on the actual skeletal mesh that the character is using, not the character object itself

M Yeah do you know how to do this?

@@crazychicken5521 just use the custom render depth on your character mesh

It's the same process as enabling the effect on any other object. Find the skeletal mesh you are using for your character, and enable custom depth pass.