I need a shader that supports - normal map, alpha map, diffuse, and specular map (NOT specular slider level thing in the bog standard specular shader).
Hi,
I created exactly such a shader in a few minutes using the Strumpy Shader Editor last week, except for the alpha channel. (Somehow I have issues getting anything with alpha to work in the editor). Unfortunately, the shader is at my work and it is still Sunday!
If I do not forget I can upload the file tomorrow. Meanwhile, I advise you to check out the shader editor (search the forum). It is actually a great tool.
Unity has no inbuilt shaders that accept a specular map.
But they are more than specular slider commonly as the alpha channel of diffuse is used as spec channel
I need a shader that supports specular from alpha and a simple texture map. Jessy made one here:
http://forum.unity3d.com/threads/95559-mobile-shader-for-texture-and-specular-only
But I can’t get it working on 3.4 - I tried running unity in opengl so I can dev on my PC with it but still errors galore. I don’t think any of this is Jessy’s fault, he’s my favorite unity person but still if anyone knows a fix or alternative pc version it’d be cool - I am probably the worst-case scenario when it comes to cross platform 
I couldn’t get strumpy working in 3.4 either - the package fails to import in 3.4 else I’d have a crack at making PC versions of my ios optimised shader collection then I’d be happy. I don’t mind if desktop shaders are slower what with all the power they have and how simple my games are.
Awesome look forward to seeing how well that will work! Will play around with Strumpy in the meanwhile…