Diffuse, normal, and specular map.

Can anybody give me a shader, that can handle the diffuse, normal and the specular maps in the same time? I’d like to sell models in Assetstore.
So, I’d like to get a solution that has to pay for it.

i don’t want to sound negative or anything but, shouldn’t you increase the value of your asset from the models themselves? the way you say it sounds like the paid value comes from the shader…

anyway, these links should have what you want:
http://wiki.unity3d.com/index.php/Shaders
http://en.wikibooks.org/wiki/Cg_Programming/Unity

That’s what the standard “Bumped Specular” shader does so why not use it?

I can’t add Specular texture to, that’s why the ‘Bumped Specular’ isn’t working.