I need a shader that is just a simple diffuse shader that renders both the back and front face, and have the option of a bumpmap. Very simple, for optimal rendering time. I also need one that's the same, but with shininess instead of bump. If this could all be in a single shader, that'd be even better. Can anyone point me to, or make for me, shaders like this/these? I'd appretiate it. I'm a bit swamped with programming, modelling, animating, etc. to learn how to make my own shaders now. Thanks.
I'm pretty dense when it comes to Shader code, but for your scenario I think all you need to do is include the line "Culling Off" to any of the default Shaders you're using. If you want lighting to affect both sides of these polygons realistically then "Culling Off" won't help. In these cases duplicating the faces and flipping their Normal direction is a much better solution. It's basically the same performance hit.