Question cell shading - does every color need to be its own object?

I followed this tutorial:

and got great results, but my understanding of how this works is that it is not texture based. Near the end of the video, it shows a model of Link from Zelda where he is wearing a blue tunic. If the tunic were all blue, it's simple - just choose blue on the shader and it works. But, the tunic has white lines on it. Would these individual white lines actually be their own objects with a white version of the shader applied to them? I don't see how this would work with putting a texture on the tunic.

Just wanting to make sure I understand how this works. The answer does not have to be specific to the shader used in this video, but can be based upon common cell-shading techniques.

Thanks in advance!

 

I didn’t watch the video, but it probably is textured. The thing to do is to store in the alpha a mask that indicates which parts of the texture should be affected by the color.

 

Thanks for the reply. I actually just tried something and got it to work. For anyone searching for this in the future, the solution is pretty simple: For the diffuse group, simply replace the diffuse color node with a texture node. Tack on one last multiplier node to the end of the group, with the second input to it being a float that you can name Diffuse Intensity to control the brightness.

Do the same for the specular group. I have yet to do anything to the fresnel effect, but I assume something similar can be done. Works like a charm.