This is a continually growing list of shader explorations, mostly standard surface shaders. All source code is linked below the shader to my github. Please forgive the GIF artifacts and ghosting. Here's a big list of all of them if you want to download the package.
Keep an eye for updates here. I'm currently several chapters into translating the old 'CG Tutorial' book into HLSL shaders for Unity. The in-progress package can be found here.